MODULAR SUPPORT STRUCTURE WITH CABLE HOLDER FOR SUPPORTING SOLAR PANELS

Abstract

Modular support structure for supporting solar panels, comprising at least one support structure designed to support at least one solar panel, where each support structure comprises a first support frame with at least one support foot intended to rest on a surface, comprises a second support frame with at least one support foot intended to rest on a surface, where a solar panel of the at least one solar panel is attachable to the first and second support frames, comprises at least one crossbar connecting the first support frame to the second support frame, and comprises at least one cable tie designed to hold a cable under a solar panel attached to the first and second support frames. In this case, a cable tie of the at least one cable tie is provided near an upper surface of the first support frame.

Description

BE2025 / 5052 2 occur, unless extensive ground leveling works are carried out. Moreover, these supporting structures are either made of sturdy and heavy materials, for example metals such as aluminium, and consequently expensive to manufacture and not very mobile, making them unsuitable for temporary installations that need to be placed and removed quickly, or made of lighter materials and reinforced by the placement of ballast, which then risks shifting due to efflorescence in the subsoil. Finally, large contact surfaces with the subsoil have the adverse effect that the individual PV panels in a large-scale installation are difficult to access for maintenance or repairs. SUMMARY OF THE INVENTION10 The purpose of the implementation forms of the present invention is to provide a support structure for supporting solar panels, which is modular in the sense that it comprises components that can be assembled in different configurations,and which is particularly suitable for both temporary and permanent placement on unpaved and / or uneven, irregular or sloping terrain, without requiring anchoring in the subsoil for this purpose.15 According to a first aspect, a modular support structure is provided for supporting at least two solar panels, comprising a first support structure designed for supporting at least one first solar panel, a second support structure designed for supporting at least one second solar panel, and at least one hinge arm designed to connect the first and second support structures to each other. Here, a first end of a hinge arm of the at least one hinge arm is hinged to the first support structure and a second end of the said hinge arm is hinged to the second support structure, all such that a height difference of the subsoil on which the first stone second support structure, can be accommodated.25 This support structure is modular,It consists of a preferably small number of components that can be easily assembled into a support structure, whereby various support structures can be interconnected and arranged in different configurations, in order to respond flexibly to the specific needs and conditions of the site, for example, the desired size and number of solar panels of the PV installation. Such modularity also makes it possible to quickly and easily move, assemble, and disassemble the individual support structures, and to expand or reduce the entire PV park if desired. 2025 / 5052 BE2025 / 5052 3 The hinged connection between the support structures by means of at least one hinged arm makes it possible to compensate for height differences of the subsoil on which the support structures rest. Consequently, compared to existing structures, these load-bearing structures lend themselves much better to placement on unpaved and / or even, uneven or sloping terrain, such as fallow land, industrial sites, landfills and brownfields,without the need to carry out extensive ground leveling works. Moreover, such ground-mounted PV installations do not require anchoring to the soil or subsoil by means of, for example, screws, nuts, or bolts, and do not rest on heavy and cumbersome foundations. As a result, these installations are suitable for placement on soil types that do not lend themselves to drilling, because the soil is too hard and dense, or mesh-loose and granular, or because soil drilling is not permitted due to a risk of soil contamination. Furthermore, the administrative procedure for installing such unanchored support structures is typically simpler and faster than for anchored support structures, which are usually subject to a permit requirement. 15 Existing load-bearing structures typically consist either of separate support structures without interconnections, which consequently cannot be moved as a single integrated structure, and which require precise manual measurements in order to obtain a coherent configuration,or support structures connected by means of rigid and non-hinged connections. The latter, however, have the disadvantage of being unsuitable for use on even, uneven, or sloping terrain, since height differences of the subsoil on which the various support structures rest cannot then be accommodated. These disadvantages and problems of existing load-bearing structures are remedied by load-bearing structures according to this first aspect. In a preferred design, the first end of the said hinge arm is connected to the first support structure by means of a circular and horizontal axis, and the second end of the said hinge arm is connected to the second support structure by means of a circular and horizontal axis. In a possible design, these ends of the said hinge arm are connected to the first and second support structure by means of, for example, ball joints. To accommodate a height difference of the subsoil on which the first and second support structures rest,However, it suffices to work with hinge connections that hinge around a horizontal axis. 2025 / 5052 BE2025 / 5052 4 The first support structure preferably comprises a hinge arm opening, and is preferably designed for installing the first end of the said hinge arm in the hinge arm opening of the first support structure, and the second support structure preferably comprises a hinge arm opening and is preferably designed for installing the second end of the said hinge arm in the hinge arm opening of the second support structure. 5 Furthermore, each support structure preferably comprises a first pass-through and a second pass-through that open into the hinge arm openings and lie in line with each other along both sides of the hinge arm opening. Hereby, the first end of the said hinge arm is provided with a first hinge arm pass-through, and the second end of the said hinge arm is provided with a second hinge arm pass-through,and the first support structure is designed for installing a first hinge pin in the first and second pass-through for the hinged connection of this support structure with the first hinge arm pass-through of the said hinge arm, while the second support structure is designed for installing a second hinge pin in the first and second pass-through for the hinged connection of this support structure15 with the second hinge arm pass-through of the said hinge arm. The installation of these pins through the said pass-throughs then effectively effects the said hinged connection. Preferably, each first pass-through is a horizontal pass-through, and the first and second20 hinge pins each form a horizontal axis around which the hinge arm is designed to move in a hinged manner. In a preferred design form, the support structure further encloses a recess, and the first pass-through extends between the hinge arm opening and the recess,and the first support structure25 is designed for inserting the first hinge pin from the recess into the first passage of the first support structure, while the second support structure is designed for inserting the second hinge pin from the recess into the first passage of the second support structure. These recesses thus facilitate the assembly of a support structure by providing space30 for inserting the respective hinge pins, while the provision of a recess on the other hand made it possible to save on the quantities of material used, which leads to a cheaper and less resource-intensive co-design and manufacture. 2025 / 5052 BE2025 / 5052 5 The said hinge arm is preferably connected to the first and second support structure in such a way that this hinge arm is designed to allow rotation through an angle of at least 20°, preferably at least 30°, or preferably at least 40°. This specifically concerns, preferably, rotation in a direction of rotation of at least 10°, preferably at least 15°, or preferably at least 20°,relative to a position of the said hinge arm on a completely flat and even surface, together with a preferably equal maximum rotation in the other direction of rotation. In an economical design form, the first support structures and the second support structure are arranged side by side in a longitudinal direction, and the load-bearing structure further comprises a third support structure which is designed to support at least one-third of the solar panel, whereby the third support structure is arranged next to the first support structure in a transverse direction perpendicular to the longitudinal directions, hinged and connected to the first support structure. In such an economical design form, the third support structure is preferably hinged around a second horizontal axis, which is perpendicular to the horizontal axis of the hinge arm, connected to the first support structure. In such an economical design form, the first support structure preferably comprises a through-feed and the third support structure preferably comprises a through-feed,and a hinge pin 20 can be inserted into the conduit of the first support structure and the conduit of the third support structure, for the hinged connection of the first and third support structure. These conduits have the effect that two support structures can also be connected in a direction that is essentially perpendicular to the direction of the hinge arms, and this by means of a simple, single hinge connection. This hinge connection also ensures that height differences and irregularities of the subsurface can be accommodated in this direction as well. In a preferred design form, the first and second support structure consists of at least a first support frame and a second support frame, each with at least one support foot to rest on a subsurface, and with at least one crossbeam connecting the first support frame to the second support frame, and which is preferably arranged to be at a certain distance above the subsurface. 35 2025 / 5052 BE2025 / 5052 6 Such a crossbeam must for this purpose maintain a fixed distance between the first and second support frame,and to reinforce the support structure as a whole. In this context, a crossbeam typically runs parallel to one side of a solar panel to be supported, requiring it to be constructed as a rigid and strong connection. For the same reason, it would not be effective to construct the crossbeam as a hinged arm and thus connect it to the support frames in a hinged, rather than rigid, manner, since a rigid solar panel is located above a crossbeam, preferably with one side or edge parallel to this crossbeam. As already indicated above, it is advantageous to position at least one crossbeam at a certain distance above the ground, rather than resting on a ground, as this would adversely increase the contact surface with the ground and thus make the load-bearing structure less suitable for accommodating height differences, unevenness, and slopes in the ground. In execution forms with a first stone, a second support frame and with at least one crossbeam,15 as described above, regarding the first support frame preferably with a crossbeam opening,is elke eerstesteunkaderbijvoorkeurerichting voorhetaaneensteeinde van eensteeinde van eensteeinde van eensteeinde van eensteeinde van het eerstesteunkader,omkompel iedertweedesteunkadervoorkeureende eenendeeindebalkieveropening,en isedertweedesteunkaderbij liever inrichting voorhetaaneentweedeeinde van de gezegdedleedekruisieverinde20 kruisbalkieveropening van het tweede steunkader. In such execution forms, the support frame is further preferably equipped with a connecting bushing that exits into the crossbeam opening, and the first end of the said crossbeam is preferably provided with a first crossbeam bushing, and the second end of the said crossbeam is preferably provided with a second crossbeam bushing. In this case, the first support frame is configured for inserting a first connecting pin into the connecting bushing to connect this support frame with the first crossbeam bushing of the said crossbeam,and is the second support frame configured for inserting a second connecting pin into the connecting bushing for connecting this support frame to the second 30 crossbeam bushing of the said crossbeam. Inserting these pins through the said bushings then effectively effects the connection of at least one crossbeam to the respective support frames. 2025 / 5052 BE2025 / 5052 7 In execution forms with connecting penetrations with a recess, as described above, each connecting penetration is preferably a vertical penetration, which preferably extends between the crossbeam opening and the recess, and each support frame is preferably oriented for inserting the connecting pin into the connecting penetration from the recess. Consequently, this recess not only facilitates the assembly of the entire load-bearing structure via the insertion of the hinge pins for the hinged connection of the support structures with at least one hinge arm,but also facilitates the assembly of the individual support structures by installing the connecting pins for securely connecting the first to the second support frame within a support structure. 10 In a preferred design form, it comprises at least one hinge arm, a first hinge arm and a second hinge arm, where each hinge arm has a first end that is hinged to the first support structure, and a second end that is hinged to the second support structure. Preferably, the first and second hinge arms then extend mainly parallel to each other, in any case in the absence of any unevenness or height differences of the ground. All properties described above for at least one hinge arm are optionally present, mutatis mutandis, for the first and second hinge arm. In particular, each support structure, in such a form of execution, preferably provided with at least two hinged arm openings, at least one-third of the feed-throughs and a fourth feed-through analogous to the first and second feed-through described,and at least two recesses from which the respective hinge pins and / or connecting pins can be inserted into the respective bushings. Each hinge arm is further designed to be located primarily at a certain distance above the ground, even when used on an uneven, irregular, or sloping surface. In a preferred design, the first support structure is a bridge structure designed to support at least two solar panels, and the second support structure is a bridge structure designed to support at least two solar panels, whereby each support structure comprises a first primarily upright V-shaped truss structure with a top, comprises a second primarily upright V-shaped truss structure with a top, and comprises at least one crossbeam designed to connect the first and second truss structures to each panel. This preferred form of execution preferably has the properties that will be described below with regard to the second aspect,and consequently also the associated technical benefits and effects. 35 2025 / 5052 BE2025 / 5052 8 In an advantageous design, where each support structure is a bridge structure as described above, and comprising a first and a second hinge arm, the first and second truss structures each being formed with a first upward-sloping support frame and a second upward-sloping support frame, the first hinge arm extends from the first support frame of the first truss structure of the second support structure to the first support frame of the second truss structure of the first support structure, and the second hinge arm extends from the second support frame of the first truss structure of the second support structure to the second support frame of the second truss structure of the first support structure. In this way, truss structures are obtained that are composed of two upward-sloping support frames, which preferably form virtually identical halves of a truss structure, and the same halves are mutually hinged in pairs by a hinge arm,so that a stable supporting structure is obtained that is also designed to accommodate height differences in the subsoil. Preferably, the support structure is primarily made of plastic, for example glass fiber reinforced plastic, and / or manufactured by injection molding.15 Plastic has the advantage of being a rather lightweight material, as a result of which the resulting support structures are not too heavy and can therefore be easily transported. Consequently, they lend themselves to use in temporary PV installations, since they can typically be assembled and disassembled quickly. The low weight also contributes to the flexibility that the modular20 support structure offers its users, since the reorganization, expansion, and contraction of a PV park is also accelerated with modular support structures by the speed with which the support structures can be erected and dismantled. However, plastic, and in particular glass fiber reinforced plastic, is sufficiently strong to manufacture a stable support structure,which is resistant to varying weather conditions, temperatures, and wind speeds of 25°C. This applies in particular to plastic support structures placed directly on the ground, as these generally catch less wind compared to support structures for solar panels mounted at great heights on a roof, and therefore run less risk of being blown away by strong gusts of wind. If desired, the various support structures can be further reinforced by placing ballast, for example paving slabs or sandbags, at specific positions in the load-bearing structure. The support structures can, for example, be provided with ballast carriers, which can be mounted as modular components on a support structure. When deciding which locations in the support structure are reinforced with ballast, it is possible to respond flexibly to the specific circumstances.35 2025 / 5052 BE2025 / 5052 9 Manufacturing by injection molding is preferred as this is a simple, flexible and inexpensive manufacturing method,which, however, imposes specific restrictions on the dimensions and shapes of the components to be manufactured. In this process, two molds or dies are pushed against each other, after which the resulting space is filled with a liquid material, for example liquid plastic. Preferably, a small number of molds is used during manufacturing, which can then serve to manufacture several different parts of a support structure, for example by using inserts to shield certain parts during injection molding. In a preferred design, the support structure wall sections are provided with a grid pattern near at least one hinge arm, to reinforce the support structure. By using thinner wall sections onto which a grid pattern is superimposed, rather than solid wall sections, material quantities can be saved during manufacturing without, however, compromising stability. The wall sections then extend mainly in a single plane, with limited thickness and thus limited lateral dimensions, but the grid patterns,which are provided in a lateral direction on both sides of the wall sections, reinforce the wall sections in a lateral direction. These reinforcements are preferably provided primarily at critical locations, particularly in the vicinity of openings and recesses in the wall sections, for example at the level of the hinge arm openings and / or crossbeam openings, and at those locations in the wall sections where pins, for example hinge pins or connecting pins, are installed. In this way, it can be guaranteed that the load-bearing structures can absorb sufficient forces, without however requiring the material quantities characteristic of solid wall sections. 25 According to a second aspect, a modular supporting structure is provided for supporting solar panels in an east-west arrangement, comprising at least one bridge structure designed to support at least two solar panels, whereby each bridge structure of the at least one bridge structure comprises a first predominantly upright V-shaped truss structure made of plastic with a top, a second predominantly upright V-shaped,a truss structure made of plastic30 comprising a top, and comprising at least one crossbeam, which is designed to connect the first and second truss structures to the floor. Hereby, the first and second truss structures are each provided with a first support foot and a second support foot, intended to rest on a ground, where the first and second support foot are provided on either side of the top of the 2025 / 5052 BE2025 / 5052 10 truss structure such that a part of the truss structure between the first and second support foot is situated at a distance above the ground. The technical advantages formulated above for load-bearing structures according to the first aspect apply also to load-bearing structures according to the second aspect. 5 For example, a load-bearing structure according to the second aspect is also modular, i.e., it consists of a preferably small number of parts which can be easily assembled into a bridge structure, whereby various support structures can be interconnected and arranged in various configurations,in order to be able to respond flexibly to the specific needs and conditions of the site, for example to the desired size and number of solar panels of the PV installation. Such modularity also makes it possible to quickly and easily move, assemble and disassemble the individual bridge structures, and to expand or reduce the entire PV park when desired. The design of the truss structures, which is such that the part of each truss structure between the first and second support foot is situated at a distance above the ground, makes it possible to accommodate height differences of the ground on which the supporting structure rests. After all, the said part does not rest directly on the ground, but is located at a distance above the ground, whereas only the support feet rest directly on the ground. Consequently, in comparison with existing supporting structures for solar panels, a smaller contact surface with the ground is obtained.in particular a contact surface that is small in proportion to the dimensions of the solar panels. Since a locally predominantly even and flat subsurface is required exclusively at the location of these contact surfaces, whereas the ground outside these contact surfaces may exhibit irregularities and slopes, these support structures lend themselves, compared to existing structures, much better to placement on unpaved and / or uneven, uneven, or sloping terrain, such as fallow land, industrial sites, landfills, and brownfields, without the need to carry out extensive ground leveling works. Moreover, such ground-mounted PV installations do not require anchoring to the soil or subsurface by means of, for example, screws, nuts, or bolts, and do not rest on heavy and cumbersome foundations. As a result, these installations are suitable for to be placed on bottom types that do not lend themselves to drilling, because they are hard and dense, or neatly loose and granular,or because drilling is not permitted due to a risk of soil contamination. Moreover, the administrative procedure for installing such non-anchored support structures is typically simpler and faster than for anchored support structures, which are generally subject to a permit requirement. Finally, the design of the truss structures, which is such that the section of each truss structure between the first and second support footing is situated at a distance above the ground,5 and the resulting limited contact surface between the ground and the support structure, have the advantage that the various solar panels in a PV installation are easily accessible for maintenance and repair, for example because a maintenance worker can crawl under the said section of the truss structure to reach the desired solar panel. In this way, it is therefore guaranteed that every solar panel is individually accessible,without, however, a separate walkway needing to be provided between the supporting structures. Such cleared walkways have the disadvantage that only a limited part of the available terrain is actually used to support solar panels, while moreover, the exposed ground surface is exposed to sunlight much more than the surface area above which a solar panel is provided, which can lead to the growth of weeds and other unwanted vegetation. The aforementioned design of the truss structures thus makes the solar panels individually accessible, without, however, compromising on surface utilization and energy density of the site. Supporting solar panels in an east-west arrangement has, compared to alternatives such as a south arrangement, the advantage that the bridge structures experience little to no hindrance from shadow formation caused by other bridge structures in the supporting structure, even when they are placed close together.so that optimal surface utilization and high energy density can be achieved. Moreover, east-west configurations suffer to a lesser extent than alternatives from the effect of wind gusts passing under the bridge structures.25 Further preferred properties and advantageous characteristics of such bridge structures, which further reinforce the aforementioned technical advantages, are described below. In a preferred design, a first solar panel can be mounted between the top of the first truss structure, the top of the second truss structure, a first end of the first truss structure and a first end of the second truss structure, and a second solar panel can be mounted between the top of the first truss structure, the top of the second truss structure, a second end of the first truss structure and a second end of the second truss structure. 2025 / 5052 BE2025 / 5052 12 Preferably, the first and second truss structures shall each be formed with a first upward-sloping support frame and a second upward-sloping support frame,where the first and second support frames are connected to each other at a certain height above the ground. In this way, it is ensured that the part of the truss structure between the first and second support feet is situated at a distance above the ground.5 Preferably, a first solar panel can be attached to the first support frame of the first truss structure and to the first support frame of the second truss structure, and a second solar panel can be attached to the second support frame of the first truss structure and the second support frame of the second truss structure. In this way, a bridge structure is obtained which is designed to support at least two solar panels. In each truss structure, the first support frame preferably encloses the first support feet and the second support frame preferably encloses the second support foot. 15 In a preferred design form, each support frame is formed with an upper leg sloping upwards at a certain height above the underground and a lower leg sloping upwards from the underground,where the upper and lower legs are preferably connected by at least one connecting beam. Preferably, each support foot extends between the ground and an upper leg of the truss structure. By shaping these support frames in such a way that they contain various recesses in the section lying between the upper and lower legs, material quantities can be saved during the manufacture of the support frames. The connecting beams, however, serve to reinforce this section by functioning as ribs connecting the upper leg to the lower leg, in such a way that this section does not contain one large recess, but rather several smaller recesses. This ensures that the load-bearing structure, despite the presence of these recesses, is still sufficiently strong and stable for supporting solar panels. part of the support frames that forms the support feet is solid spring and contains fewer such recesses, since the solar panels mainly rest on the ground via these support feet30,so that a greater degree of strength and stability is required at the height of these support feet. 2025 / 5052 BE2025 / 5052 13 In a preferred design, the first support frame in each truss structure is connected to the second support frame by means of a dovetail joint. Such dovetails indeed ensure a strong and stable connection between the support frames. In every truss structure, the first support frame is preferably provided with a first support frame penetration, and the second support frame is preferably provided with a second support frame penetration. Each truss structure is then preferably directed for installing a support frame pin in the first and second support frame penetration to connect the first support frame with the second support frame. Preferably, each support frame penetration extends in a vertical direction. The installation of this support frame pin in these support frame penetrations, whether or not in combination with the dovetail joint described above,then ensures a firm and stable connection between the support frames. In such a combination, the support frame penetrations are provided in the dovetail-shaped projections of the dovetail joint. 15 In an economical design, it comprises at least one crossbeam, a central crossbeam extending from the part of the first truss structure between the first and second support foot to the part of the second truss structure between the first and second support foot. In an economical design, it comprises at least one crossbeam, a first crossbeam and a 20 second crossbeam, where the first crossbeam extends from the first support foot of the first truss structure to the first support foot of the second truss structure,and the second crossbeam extends from the second support foot of the first truss structure to the second support foot of the second truss structure. Such crossbeams are therefore non-central crossbeams which are located on either side of the part of the truss structure that is situated between the first and second support foot and at a certain distance above the ground. Depending on the stability desired at the specific circumstances, the bridge structure can therefore, for example, be provided with a single central crossbeam, two non-central crossbeams, or three crossbeams consisting of one central and two non-central crossbeams. This last variant will generally offer the greatest degree of stability and is therefore preferred. In a preferred design, the first truss structure comprises at least one crossbeam opening,and the first truss structure is designed for the installation of a first end of a crossbeam of the at least one crossbeam in a crossbeam opening of the at least one 35 2025 / 5052 BE2025 / 5052 14 crossbeam opening of the first truss structure. Furthermore, in this configuration, the second truss structure comprises at least one crossbeam opening, and the second truss structure is designed for the installation of a second end of the said crossbeam in a crossbeam opening of the at least one crossbeam opening of the second truss structure. 5 In such configuration, around the first truss structure, furthermore preferably at least one connecting penetration that opens into the said crossbeam opening, the first end of the said crossbeam is provided with a first crossbeam penetration,and the second end of the said crossbeam is provided with a second crossbeam penetration. Hereby, the first truss structure is configured for the installation of a first connecting pin in a connecting penetration of at least one connecting penetration of the first truss structure for connecting this truss structure with the first crossbeam penetration of the said crossbeam, and the second truss structure is configured for the installation of a second connecting pin in a connecting penetration of the second truss structure for connecting this truss structure with the second crossbeam penetration of the crossbeam. The installation of these pins through the said penetrations then effectively effects the connection of at least one crossbeam with the respective support frames. Preferably, each connecting penetration extends in a vertical direction. 20 In the above-mentioned form of execution, the said crossbar is preferably the central crossbar, as described earlier,in each truss structure the said connection penetration is formed by the first support frame penetrations and the second support frame penetration, which support frame penetrations were described earlier, and the first connection pin coincides with the support frame pin of the first truss structure and the second connection pin coincides with the support frame pin of the second truss structure, which support frame pins were described earlier. In execution forms with a central crossbeam, in other words, the connection between the central crossbeams and the relevant truss structure is realized by means of the support frame penetrations and support frame pins which also serve to connect the first and second support frame within a truss structure to each other. In an economical execution form, it comprises at least one bridge structure, a first bridge structure and a second bridge structure, and the load-bearing structure further comprises at least one hinge arm which is designed to connect the first and second bridge structure to each other.where the first bridge structure is designed to support at least two solar panels and the second 35 2025 / 5052 BE2025 / 5052 15 bridge structure is designed to support at least two solar panels. The entire supporting structure then comprises at least two bridge structures as described above, which are interconnected by at least one hinge arm. In the above-mentioned advantageous design form, at least one hinge arm comprises preferably a first hinge arm and a second hinge arm, each hinge arm has a first end hinged to the first bridge structure, as well as a second end hinged to the second bridge structure, and each hinge arm preferably extends from the first truss structure of the second bridge structure to the second truss structure of the first bridge structure.10 The resulting load-bearing structure is, in other words, a load-bearing structure according to the first aspect, in which each support structure is a bridge structure according to the second aspect,where the first bridge structure is also hinged to the second bridge structure by means of at least two hinge arms. The preferred properties and advantageous properties described above with regard to the first aspect, in particular with regard to the support structures and at least one hinge arm, can therefore also apply mutatis mutandis to the considered forms of execution according to the second aspect, in particular to the bridge structures and the first and second hinge arm. 20 Here, the first and second hinge arms are preferably situated on either side of the part of the truss structure between the first and second support foot that is situated at a distance above the ground, i.e. on either side of the said dovetail joint between the said support frames, such that the first hinge arm extends from the first support frame of the first truss structure of the second bridge structure to the first support frame of the second truss structure25 of the first bridge structure,and that the second hinge arm extends from the second support frame of the first truss structure of the second bridge structure to the second support frame of the second truss structure of the first bridge structure. Preferably, the load-bearing structure is mainly made of plastic, for example glass fiber reinforced plastic, and / or manufactured by injection molding. Plastic has the advantage of being a rather lightweight material, meaning that the resulting support structures are not too heavy and can therefore be transported easily. Consequently, they lend themselves to use in temporary PV installations, as they can typically be assembled and disassembled quickly. The low weight also contributes to the flexibility that the modular support structure offers its users, as the reorganization, expansion, and contraction of a PV park with modular support structures is also accelerated by the speed with which the structures can be erected and dismantled. Plastic, and in particular glass fiber reinforced plastic,is, however, sufficiently sturdy to be able to manufacture a stable supporting structure that is resistant to varying weather conditions, temperatures, and wind strengths. This applies in particular to plastic supporting structures that are placed directly on the ground, since these, compared to supporting structures for solar panels mounted at great height on a roof, generally catch less wind and therefore run less risk of being blown away by strong gusts of wind.10 If desired, the various bridge structures can be further reinforced by placing ballast, for example paving slabs or sandbags, at specific positions in the supporting structure. The bridge structures can, for example, be provided with ballast carriers, which can be mounted as modular components on a bridge structure. When deciding which locations in the bridge structure are reinforced with ballast, one can respond flexibly to the specific circumstances. Manufacturing by injection molding is preferred since this is a simple,is a flexible and inexpensive manufacturing method, which nevertheless imposes certain restrictions on the dimensions and shapes of the components to be manufactured. In this process, two molds or dies are pushed against each other, after which the resulting space is filled with a liquid material, for example liquid plastic. Preferably, a small number of molds are used during manufacturing, which can then serve to manufacture several different parts of a supporting structure, for example by using inserts to shield certain parts during injection molding. In a preferred design form, the truss structure wall sections are provided with a grid pattern near at least one crossbeam, to reinforce the truss structures. 30 By using thinner wall sections onto which a grid pattern is superimposed, rather than solid wall sections, material quantities can be saved during manufacturing without, however, compromising stability. The wall sections then extend mainly in a single plane,with limited thickness and thus limited lateral dimensions, but the grid patterns, which are provided in a lateral direction on both sides of the wall sections,35 2025 / 5052 BE2025 / 5052 17 reinforce the wall sections in a lateral direction. These reinforcements are preferably provided especially at critical locations, particularly in the vicinity of openings and recesses in the wall sections, for example at the level of the hinge arm openings and / or crossbeam openings, and at those locations in the wall sections where pins, for example hinge pins or connecting pins, are installed. In this way, it can be guaranteed that the load-bearing structures can absorb sufficient forces5, without however requiring the material quantities characteristic of solid wall sections. According to one-third aspect, a modular support structure is provided for supporting solar panels, comprising at least one support structure designed for supporting at least one solar panel, whereby each support structure comprises a first support frame with at least one support foot intended to rest on a surface,a second support frame comprises at least one support foot intended to rest on a surface, and comprises at least one crossbeam connecting the first support frame to the second support frame. The supporting structure further comprises a multitude of clamps, comprising a first clamp, a second clamp, a third clamp, and a fourth clamp. The first support frame is configured near a first end to be coupled with the first clamp, and near a second, higher end, configured to be coupled with the second clamp. The second support frame is configured near a first end to be coupled with the third clamp, and near a second, higher end, configured to be coupled with the fourth clamp. The supporting structure is configured to hold a solar panel between the first, second, third, and fourth clamps, where a first edge of the solar panel is included. in the first terminal and the third terminal, a second edge of the solar panel is incorporated in the second terminal and the fourth terminal. Since a solar panel in such a support structure, after coupling with the terminals,is held between the aforementioned four clamps, rather than directly by certain parts of the support frameworks, it is avoided that the support frameworks are excessively directly burdened. Moreover, it follows from the fact that a first edge of the solar panel is then incorporated into the first clamp and the third clamp and a second edge of the solar panel is then incorporated into the second and fourth clamps, whereby the first support frame is coupled to the first and second clamps and the second support frame is coupled to the third and fourth clamps, that both support frames extend over a considerable dimension of the solar panel in a width direction or a length direction, so that indeed a rigid and complete support is provided to the supported solar panel. In addition, such support structures, due to their construction consisting of at least two support frames connected by at least one crossbeam each resting on a support foot, have a rather limited contact surface with the ground,particularly limited in relation to the dimensions of the solar panel. Consequently, the previously described technical advantages of a limited contact surface also apply to these support structures, in particular the advantage of suitability for installation on unpaved and / or in even, uneven or sloping terrain, for various soil types, without requiring anchoring in the subsoil.5 Furthermore, this support structure is modular, i.e., it consists of a preferably small number of parts which can be easily assembled into a support structure, whereby various support structures can be interconnected and arranged in different configurations, in order to respond flexibly to the specific needs and conditions10 of the site, for example to the desired size and number of solar panels of the PV installation. Such modularity also makes it possible to quickly and easily move, assemble and disassemble the individual support structures, and to expand or reduce the entire PV park if desired. 15 Finally, it is,In particular for load-bearing structures which are primarily manufactured by injection molding, it is advantageous to work with clamps that are manufactured separately and subsequently coupled to the load-bearing structure, rather than with clamps that form an integral part of a support frame, for at least the following reasons. Firstly, manufacturing clamps by injection molding as an integral part of a support frame would require a complex manufacturing process. Moreover, separate clamps can be manufactured with different clamping heights,and when assembling the support structure, clamps can be selected whose clamping height corresponds to the thickness of the edges of the solar panels to be supported in the given situation. In this way, the characteristics of the solar panels in question can be responded to flexibly. Finally, clamps that can be coupled separately with a support frame have the advantage that they allow a solar panel to be attached to the support structure without having to rely on, for example, a spring action when fitting a solar panel. Indeed, many existing support structures make some use of a spring action when attaching a solar panel to the support structure, which springs then have to be compressed during attachment to provide space at an edge of a solar panel, to subsequently resume their original shape and clamp the edge of the solar panel in this way. In the current designs, no reliance is placed on a spring action,but during the mounting the necessary space can be provided to the solar panel by furthermore connecting at least two of the clamps to the support structure simultaneously with the mounting of the solar panel35 2025 / 5052 BE2025 / 5052 19, i.e. by first connecting two of the clamps to the respective support frame, then incorporating an edge of the solar panel into these two clamps, and finally connecting the remaining two clamps to the support frame in such a way that they also immediately clamp around an edge of the solar panel. 5 In an alternative design, two of the four mentioned clamps are manufactured as an integral part of the relevant support frame, and the other two clamps are manufactured separately and subsequently coupled to the support frame. The above-mentioned method of coupling to the support frames and fastening of the solar panel can also be applied to such support structures, but the manufacture of the support frames will be more difficult in this case.in particular if this is manufactured by injection molding. In a preferred design, the first support frame is provided at the first end with a first channel into which the first clamp slides, and at the second end with a second channel into which the second clamp slides, and the second support frame is provided at the first end with a first channel into which the third clamp slides, and at the second end with a second channel into which the fourth clamp slides. In such designs, the clamps thus indeed form separate components, with the technical advantages as described above, and the coupling of the clamps with the support frames simply proceeds by sliding these into channels. In an alternative design, the support frames at the said ends contain no channels, but rather thickenings, protrusions, or flanges over which the clamps can engage and / or slide.with the same coupling effect between the clamping and support frames. Preferably, each support frame is formed with an upper leg sloping upwards at a certain height above the underground support frame, the first and second channels of the first support frame are provided in the upper leg of the first support frame, and the first and second channels of the second support frame are provided in the upper leg of the second support frame. In this way, it is ensured that the solar panel is held above the relevant upper leg, at the same angle of inclination as this upper leg, and with an edge mainly parallel to this upper leg, so that the forces exerted by the solar panel on the supporting structure are adequately absorbed by the support frames via the relevant upper legs. 2025 / 5052 BE2025 / 5052 20 In a preferred design form, each support structure is a bridge structure designed to support at least two solar panels, where each bridge structure comprises a first predominantly upright V-shaped truss structure with a top, where the first truss structure comprises the first support frame,and encompasses a second predominantly upright V-shaped truss structure with a top, whereby the second truss structure encompasses the second support frame. The first and second truss structures are then preferably each provided with a first and second support foot intended to rest on a ground, which first and second support foot are provided on either side of the top of the truss structure such that a part of the truss structure is situated between the first and second support foot at a distance above the ground. This preferred design concerns, in other words, a load-bearing structure according to the third aspect, in which each support structure is a bridge structure according to the second aspect. The technical advantages and effects of the load-bearing structures according to the second aspect are consequently, mutatis mutandis, applicable to these designs. 15 Preferably, the first and second truss structures are each formed with a first support frame sloping upwards and a second support frame sloping upwards, and the first and second support frames are connected to each other at a certain height above the ground,and each support frame is configured to be coupled to a first clamp of the multiple of clamps near a first end, and to be coupled to a second clamp of the multiple of clamps near and a second higher end. Hereby, the supporting structure is configured to hold a first solar panel between the clamps of the first support frame of the first truss structure and the clamps of the first support frame of the second truss structure, and to hold a second solar panel between the clamps of the second support frame of the first truss structure and the clamps of the second support frame of the second truss structure. In this way, it is thus achieved that in the resulting bridge structure, the part of the truss structures between the first and second support foot is situated at a distance above the ground, while this bridge structure is simultaneously configured to support two solar panels, specifically a first solar panel between four of the eight clamps coupled to the supporting structure,and of a second solar panel between the remaining four of the eight clamps connected to the support structure.30 Preferably, each support frame is provided near the first end with a first channel into which the said first clamp slides, and near the second end with a second channel into which the said second clamp slides. In this way, the connection of the eight 2025 / 5052 BE2025 / 5052 21 relevant clamps with the support structure can easily proceed by sliding them into the channels of the respective support frames. In a preferred design form, the first support frame in each truss structure comprises the first support foot, and the second support frame in each truss structure comprises the second support foot.5 Preferably, each support frame is formed with an upper leg sloping upwards at a certain height above the underground, in which the first and second channels are provided, and with a lower leg sloping upwards from the underground, the upper and lower legs are preferably connected by at least one connecting beam,and preferably each supporting foot10 extends between the bases and an upper leg of a supporting frame. By shaping these support frames in such a way that they contain various recesses in the section lying between the upper and lower legs, material quantities can be saved during the manufacture of the support frames. The connecting beams, however, serve to reinforce this section by functioning as ribs connecting the upper and lower legs, in such a way that this section comprises not one large recess, but rather several smaller recesses. This guarantees that the load-bearing structure, despite the presence of these recesses, is sufficiently strong and stable to support solar panels. The section of the support frames that forms the support feet is made of springs and contains fewer such recesses, since the solar panels primarily rest on the ground via these support feet.so that a greater degree of strength and stability is required at the height of these support feet. Furthermore, in every truss structure, the first support frame is preferably connected to the second support frame by means of a dovetail joint, and within a bridge structure, the first truss structure is preferably connected to the second truss structure via at least one crossbeam, optionally two or three crossbeams, in the same ways with the same technical effects and benefits as previously described with regard to the second aspect. 30 In a preferred design form, the support structure comprises at least one support structure, a first support structure designed to support at least one solar panel, preferably a first solar panel and a second solar panel, and a second support structure designed to support at least one solar panel, preferably a first solar panel and a second solar panel. The supporting structure further comprises preferably at least one hinge arm, in 35 2025 / 5052 BE2025 / 5052 22 preference a first hinge arm and a second hinge arm,where each hinge arm is arranged to connect the first support structure to the second support structure. Preferably, each hinge arm has a first end that is hinged, preferably hinged around a horizontal axis, to the first support structure, and a second end that is hinged, preferably hinged around a horizontal axis, to the second support structure, the other such that there is a height difference of the ground on which the first and second support structures rest,can be accommodated. The resulting load-bearing structure is, in other words, a load-bearing structure according to both the third and the first aspect. The preferred properties and advantageous properties described above with regard to the first aspect can therefore also apply mutatis mutandis to the considered execution forms according to the third aspect. Preferably, it comprises at least one hinge arm, a first hinge arm extending from the first support frame of the first truss structure of the second support structure to the first support frame of the second truss structure of the first support structure, as well as a second hinge arm extending from the second support frame of the first truss structure of the second support structure to the second support frame of the second truss structure of the first support structure. The resulting load-bearing structure is, in other words, a load-bearing structure according to both the third and the first aspect,where the first support structure is also hinged to the second support structure by means of at least two hinge arms. The preferred and advantageous properties described above with regard to the first aspect, in particular with regard to the support structures and at least one hinge arm, can therefore also apply mutatis mutandis to the considered forms of execution according to the third aspect, in particular to the support structures with clamps and the first and second hinge arm. In this case, the first and second hinge arms are preferably located on either side of the part of the truss structure between the first and second support foot that is situated at a distance above the ground, i.e. on either side of the said dovetail joint between the said support frames. Preferably, each hinge arm is connected to the first support structure and the second support structure in such a way that this hinge arm is configured to allow rotation through an angle of at least 20°, preferably at least 30°,more preferably at least 40°.35 2025 / 5052 BE2025 / 5052 23 In a preferred design form, the support structure furthermore contains at least one cable entry point designed for holding a cable under a solar panel attached to the support structure, and each cable entry point of the at least one cable entry point is provided near an upper surface of a support frame of the support structure, preferably between a first end and a second end of an upper leg of the said support frame, whereby each cable entry point preferably forms an integral part of the said support frame. In other words, these forms of execution according to the third aspect have the properties10 of a support structure according to the fourth aspect discussed below. More specifically, the purpose of these cables is to connect successive solar panels in a PV installation and to route the current generated by the solar panels to an inverter. Such cables originate from a solar panel mounted on a support structure, typically at the underside of this solar panel,and are subsequently brought together in a conduit, in which sufficient space must be left between the cables to prevent excessive heat generation, and finally routed to an inverter. The cable support devices serve to prevent the cables from resting partially on the subsurface and thereby being exposed to damage, for example caused by rodents. Furthermore, a structure is created within the tangle of cables leaving a solar panel when these cables are held under the solar panel by the cable support device, so that the gathering of the cables in the aforementioned conduits and the routing of these cables to the inverter can also proceed in a structured and predictable manner, which does not impede the modularity and mobility of the support structure, and its suitability for temporary PV installations. 25 Preferably, each cable holder of at least one cable holder with the said support frame is manufactured in one piece by injection molding,and / or formed as a flange protruding from the top surface of the said support frame. The said cable can then engage behind this flange, hook onto this flange, or pass through behind this flange, so that it is effectively held by the cable retaining device. This flange-like design lends itself perfectly to the manufacture of the cable retaining device as an integral part of a support frame, for example by injection molding. 2025 / 5052 BE2025 / 5052 24 Manufacturing by injection molding is preferred as this is a simple, flexible and inexpensive manufacturing method, which, however, imposes certain restrictions on the dimensions and shapes of the components to be manufactured. Preferably, a small number of molds are used in manufacturing, which can then serve to manufacture several different parts of a support structure, for example by using 5 inserts to shield certain parts during injection molding. Preferably, the support structure is mainly made of plastic, for example glass fiber reinforced plastic,and / or manufactured by injection molding. 10 Plastic has the advantage of being a rather lightweight material, meaning that the resulting support structures are not too heavy and can therefore be easily transported. Consequently, they lend themselves to use in temporary PV installations, as they can typically be assembled and disassembled quickly. The low weight also contributes to the flexibility that the modular support structure offers its users, as the reorganization, expansion, and contraction of a PV park with modular support structures is also accelerated by the speed with which the structures can be erected and dismantled. However, plastic, and in particular glass fiber reinforced plastic, is sufficiently strong to manufacture a stable support structure that is resistant to varying weather conditions, temperatures, and wind strengths. This applies in particular to plastic support structures that are placed directly on the ground, as these,compared to support structures for solar panels mounted at great heights on a roof, they generally catch less wind and therefore run less risk of being blown away by strong gusts of wind. If desired, the various support structures can be further reinforced by placing ballast, for example paving slabs or sandbags, at specific positions in the load-bearing structure. The support structures can, for example, be provided with ballast carriers, which can be mounted as modular components on a support structure. When deciding which locations in the support structure are reinforced with ballast, one can respond flexibly to the specific circumstances. Manufacturing by injection molding is preferred as this is a simple, flexible, and inexpensive manufacturing method, although it does impose certain restrictions on the dimensions and shapes of the components to be manufactured. In this process, two molds or dies are pushed against each other, after which the resulting space is filled with a liquid material,for example 35 2025 / 5052 BE2025 / 5052 25 liquid plastic. Preferably, a small number of molds are used in manufacturing, which can then serve to manufacture several different parts of a supporting structure, for example by using inserts to shield certain parts during injection molding. 5 In a preferred design form surrounding the support frame wall sections which are provided with a grid pattern at at least one crossbeam, to reinforce the support frame. By using thinner wall sections onto which a grid pattern is superimposed, rather than solid wall sections, material quantities can be saved during manufacturing without compromising stability. The wall sections then extend mainly in a single plane, with limited thickness and thus limited lateral dimensions, but the grid patterns, which are provided in a lateral direction on both sides of the wall sections, reinforce the wall sections in a lateral direction. These reinforcements are preferably provided primarily at critical locations.specifically in the vicinity of openings and recesses in the wall sections, 15 for example at the height of the hinge arm openings and / or crossbeam openings, and at those locations in the wall sections where pins, for example hinge pins or connecting pins, are installed. In this way, it can be guaranteed that the load-bearing structures can absorb sufficient forces, without however requiring the material quantities characteristic of solid wall sections. 20 According to a fourth aspect, a modular load-bearing structure is provided for supporting solar panels, comprising at least one support structure designed for supporting at least one solar panel, whereby each support structure comprises a first support frame with at least one support foot intended to rest on a surface, a second support frame with at least one support foot intended to rest on a surface, whereby at least one solar panel of the at least one solar panel can be attached to the first and second support frame, at least one crossbeam encompassing that connects the first support frame to the second support frame,and comprises at least one cable support device designed for holding a cable under a solar panel mounted on the first and second support frame. Here, at least one cable support device is provided near the top surface of the first support frame. The purpose of these cables is to electrically connect successive solar panels in a PV installation and to route the current generated by the solar panels to an inverter. Such cables originate from a solar panel mounted on a support structure, typically at the underside of this solar panel, and are subsequently brought together in a conduit, in which sufficient space must be left between the cables to prevent excessive heat generation, and finally routed to an inverter. The cable support devices serve to prevent the cables from resting partially on the ground and thereby being exposed to damage,for example caused by rodents. Furthermore, a structure is created in the tangle of cables leaving a solar panel when these cables are held under the solar panel by the cable receiver, so that the gathering of the cables in the said conduits and the guiding of these cables to the inverter can also proceed in a structured and predictable manner, which does not impede the modularity and mobility of the support structure, and its suitability for temporary PV installations. Finally, such support structures, due to their construction consisting of at least two support frames connected by at least one crossbeam each supported on a support foot, have a rather limited contact surface with the ground, in particular limited in relation to the dimensions of the solar panel. Consequently, the previously described technical advantages of a limited contact surface also apply to these support structures, in particular the advantage of suitability. for installation on unpaved and / or uneven, irregular or sloping terrain, for various soil types,without requiring anchoring in the subsoil. Preferably, the said cable support device forms an integral part of the first support frame. In a preferred design, the first support frame has a top leg, the said solar panel is attached near a first end of the top leg and near a second end of the top leg, and the said cable support device is provided between the first and second ends of the top leg. In this way, it is ensured that the said cable is held essentially parallel to the top leg under the solar panel and to an upper surface of the support frame. The first support frame is preferably manufactured in one piece by injection molding together with the said cable support device. Manufacturing by injection molding is preferred as this is a simple, flexible and inexpensive manufacturing method, which, however, imposes certain restrictions on the dimensions and shapes of the components to be manufactured. Preferably, a small number of molds are used in manufacturing,which can then serve for the manufacture of several different components of a supporting structure, for example by using inserts to shield certain parts during injection molding. Preferably, the said cable support device is shaped as a flange protruding from the top surface of the first support frame. The said cable can then engage behind this flange, hook onto this flange, or run through behind this flange, so that it is effectively held by the cable support device. This flange design lends itself perfectly to the manufacture of the cable support device as an integral part of a support frame, for example by injection molding. Further designs of a supporting structure may have one or more of the properties as described above with regard to the first, second and / or third aspect,where the described technical advantages or effects may apply mutatis mutandis. In particular, this concerns the following preferred properties and advantageous properties. In a preferred design form, each support structure is a bridge structure designed to support at least a first solar panel and a second solar panel, where each bridge structure comprises a first predominantly upright V-shaped truss structure with a top,20 where the first truss structure comprises the first support frame, and a second predominantly upright V-shaped truss structure with a top, where the second truss structure comprises the second support frame. In this case, the first and second truss structures are preferably each provided with a first and second support foot intended to rest on a ground, which first and second support foot are provided on either side of the top of the truss structure such that a section25 of the truss structure between the first and second support foot is situated at a distance above the ground. In other words, this preferred design form concernsa load-bearing structure according to the fourth aspect, in which every supporting structure is a bridge structure according to the second aspect. The technical advantages and effects of the load-bearing structures according to the second aspect are consequently, mutatis mutandis, applicable to these forms of execution. In such a form of execution, it comprises at least one cable support device—a first cable support device designed for holding a cable under the first solar panel,35 2025 / 5052 BE2025 / 5052 28—and a second cable support device designed for holding a cable under the second solar panel. Here, the first and second truss structures are each formed with a first upward-sloping support frame and a second upward-sloping support frame, which first and second support frames are connected to each other at a certain height above the ground, and the first solar panel can be mounted on the first support frame of the first truss structure and the first support frame of the second truss structure,and the second solar panel can be mounted on the second support frame of the first truss structure and the second support frame of the second truss structure. Preferably, at least one of the first support frames of the first truss structure and the first support frame of the second truss structure are provided near an upper surface with the first cable attachment, which preferably forms an integral part of the said first support frame, and at least one of the second support frames of the first truss structure and the second support frame of the second truss structure are provided near an upper surface with the second cable attachment, which preferably forms an integral part of the said second support frame. In each truss structure, the first support frame preferably encloses the first support feet and the second support frame preferably encloses the second support foot.15 In this way, it is achieved that also in a bridge structure according to the second aspect, the from the cables leaving a solar panel can be routed away in a structured manner,by providing at least one cable support device under each solar panel attached to a bridge structure.20 In a preferred design, the said first support frame and the said second support frame are each formed with a top leg sloping upwards at a certain height above the underground, with a first end and a second end coinciding with the top of the truss structure of the support frame. The first cable support device is preferably provided between25 the first end and the second end of the said first support frame, and the second cable support device is preferably provided between the first end and the second end of the said second support frame. Preferably, the at least one support structure comprises a first support structure designed to support at least one solar panel, preferably a first solar panel and a second solar panel, and a second support structure designed to support at least one solar panel,preferably of a first solar panel and a second solar panel. Preferably, the supporting structure further comprises at least one hinged arm, preferably a first 2025 / 5052 BE2025 / 5052 29 hinged arms and a second hinged arm, where each hinged arm is designed to connect the first support structure to the second support structure. Preferably, each hinged arm has a first end that is hinged, preferably hinged around a horizontal axis, connected to the first support structure, as well as a second end that is hinged, preferably hinged around a horizontal axis, connected to the second support structure, all in such a way that a height difference of the ground on which the first and second support structures rest can be accommodated. In a preferred design form, at least one hinge arm comprises a first hinge arm that extends from the first support frame of the first truss structure of the second support structure to the first support frame of the second truss structure of the first support structure,as well as a second hinge arm extending from the second support frame of the first truss structure of the second support structure to the second support frame of the second truss structure of the first support structure. 15 Preferably, each hinge arm is connected to the first support structure and the second support structure in such a way that this hinge arm is arranged to allow rotation over an angle of at least 20°, preferably at least 30°, but preferably at least 40°. In a preferred design form, the supporting structure further comprises a multitude of clamps, comprising the first clamp, a second clamp, a third clamp and a fourth clamp, where the first support frame is configured near a first end to be coupled with the first clamp, and near a second higher end is configured to be coupled with the second clamp, and where the second support frame is configured near a first end to be coupled with the third clamp,and near a second higher end is designed to be coupled with the 25 fourth clamp. The support structure is preferably designed to hold a solar panel between the first, second, third and fourth clamps, whereby a first edge of the solar panel is included in the first clamp and the third clamp and a second edge of the solar panel is included in the second clamp and the fourth clamp. 30 Preferably, the first support frame near the first end is provided with a first channel in which the first clamp is sliding, and near the second end with a second channel in which the second clamp is sliding. Preferably, the second support frame near the first end is provided with a first channel in which the third clamp is sliding, and near the second end with a second channel in which the fourth clamp is sliding.35 2025 / 5052 BE2025 / 5052 30 Preferably, the supporting structure is made mainly of plastic, for example glass fiber reinforced plastic, and / or manufactured by injection molding. Plastic has the advantage of being a rather lightweight material,as a result, the resulting support structures are not too heavy and can therefore be easily transported. Consequently, these lend themselves to use in temporary PV installations, as they can typically be assembled and disassembled quickly. The low weight also contributes to the flexibility that the modular support structure offers its users, as the reorganization, expansion, and contraction of a PV park with modular support structures is also accelerated by the speed with which the structures can be erected and dismantled. Plastic, and in particular glass fiber reinforced plastic, is however sufficiently strong to manufacture a stable support structure that is resistant to varying weather conditions, temperatures, and wind strengths. This applies in particular to plastic support structures that are placed directly on the ground, since these, compared to support structures for solar panels that are mounted at a great height on a roof,generally catch less wind and therefore run less risk of being blown away by strong gusts. If desired, the various support structures can be further reinforced by placing ballast, for example paving slabs or sandbags, at specific positions in the supporting structure. The support structures can, for example, be equipped with ballast carriers, which can be mounted as modular components on a support structure. When deciding which locations in the support structure are reinforced with ballast, it is possible to respond flexibly to the specific circumstances. Manufacturing by injection molding is preferred as it is a simple, flexible, and inexpensive manufacturing method, although it does impose certain restrictions on the dimensions and shapes of the components to be manufactured. In this process, two molds or dies are pushed against each other, after which the resulting space is filled with a liquid material, for example, liquid plastic. Preferably, a small number of molds are used during manufacturing.which can then serve to manufacture several different parts of a supporting structure, for example by using inserts to shield certain parts during injection molding. In a preferred design form, the support frame wall sections are provided with a grid pattern near at least one crossbeam to reinforce the support frame.35 2025 / 5052 BE2025 / 5052 31 By using rather thin wall sections onto which a grid pattern is superimposed, rather than solid wall sections, material quantities can be saved during manufacturing without, however, compromising stability. The wall sections then extend mainly in a single plane, with limited thickness and thus limited lateral dimensions, but the grid patterns, which are provided in a lateral direction on both sides of the wall sections,5 reinforce the wall sections in a lateral direction. These reinforcements are preferably provided mainly at critical locations, particularly in the vicinity of openings and recesses in the wall sections,for example at the level of the hinge arm openings and / or crossbeam openings, and at those locations in the wall sections where pins, for example hinge pins or connecting pins, are installed. In this way it can be guaranteed that the load-bearing structures can absorb sufficient forces10, without however requiring the material quantities that are characteristic of solid wall sections. According to a fifth aspect, an assembly is provided for the generation of solar energy, comprising at least one load-bearing structure according to the first or second aspect, and at least two15 solar panels that are supported by a load-bearing structure of the at least one load-bearing structure, or comprising at least one load-bearing structure according to the third or fourth aspect,and at least one solar panel that is supported by a load-bearing structure of the at least one load-bearing structure. 20 SHORT FIGURE DESCRIPTION The above and other advantageous properties and objectives of the invention will become clearer and the invention will be better understood on the basis of the following detailed description when read in combination with the drawings in the appendix, in which: 25 Figure 1 shows a schematic perspective view of an execution form of a load-bearing structure according to the first, second, third and fourth aspects, on which four solar panels are mounted, looking at a top side; Figure 2 shows a schematic perspective view of the load-bearing structure of Figure 1, looking at a bottom side; 30 Figure 3 shows a front view of the load-bearing structure of Figure 1; Figure 4 shows a schematic perspective view of a load-bearing structure, specifically a bridge structure, according to the second,third and fourth aspect; Figure 5 shows a schematic perspective view of some parts of the supporting structure of Figure 4 in an exploded view; 35 2025 / 5052 BE2025 / 5052 32 Figures 6-7 show a front view of a design of a support frame according to the second, third and fourth aspect; Figures 8-10 show a detail of a front view of the supporting structure of Figure 1 in an exploded view; Figure 11 shows a schematic perspective view of a design of a hinge arm; Figure 12 shows a schematic perspective view of a design of a crossbeam; Figures 13-14 show a schematic perspective view of a design of a clamp; Figure 15 shows a schematic perspective view of a design form of a ballast support; and Figure 16 shows a schematic perspective view of a design form of a pin which can serve as a hinge pin, a connecting pin or a support frame pin, in a design form of a load-bearing structure according to the first, second,third or fourth aspect. 15 DETAILED FIGURE DESCRIPTION Figures 1, 2 and 3 show an execution form of a modular support structure for supporting solar panels according to the first, second, third and fourth aspects, on which four solar panels A, B, C and D are mounted, looking at the top, bottom and front respectively. This supporting structure comprises a first support structure100, a second support structure101, a first 20 hinge arm 200 and a second hinge arm 201, which hinge arms are arranged to connect the first support structure100 and the second support structure101 with each other. In this regard, each hinge arm 200, 201 has a first end 210 and a second end 211, as shown in Figure 11, whereby each hinge arm 200, 201 is hinged at the first end 210 to the first support structure 100 and the second end 211 is hinged to the second 25 support structure 101, all such that there is a height difference of the ground on which the first and second support structures 100, 101 rest,can be accommodated. In these configurations, the first hinge arm200 and the second hinge arm201 are connected to the first support structure100 and the second support structure101 in such a way that these hinge arms30 are arranged to allow rotation at an angle of at least 20°, preferably at least 30°, but preferably at least 40°. Figure 2 shows the position of the support structures100,101 and the hinge arms200,201 when the surface on which the support structures100,101 rest is completely flat and even, without upward or downward slope, so that no height differences need to be accommodated. With respect to this position, the first35 2025 / 5052 BE2025 / 5052 33 hinge arm200 and the second hinge arm201 are arranged to allow rotation in a clockwise direction. over at least 10°, preferably at least 15°, more preferably at least 20°, for example over a maximum of 21°, and the phenomenon of allowing the same rotation counterclockwise over at least 10°, preferably at least 15°, more preferably at least 20°, for example over a maximum of 21°,such that the total angle between these two extreme angle positions amounts to at least 20°, preferably at least 30°, but preferably at least 40°, for example a maximum of 42°, and such that both an upward and a downward slope of the ground can be accommodated. In the configuration shown in Figures 1, 2 and 3, the first support structure 100 and the second support structure 101 are each designed as bridge structures to support two solar panels 10 A and B respectively C and D in an east-west arrangement, as shown in Figure 4. In an alternative configuration, the first support structure 100 and the second support structure 101 are each designed to support only one solar panel A and C respectively, possibly in a different arrangement, for example a north-south arrangement, and these support structures are connected by means of a single hinge arm 200. In this case, the first support structure 100 and the second support structure 101 are, for example, designed as a half-bridge structure, as obtained from the load-bearing structure of Figure 1.2 and 3 after removal of the second hinge arm201 and of the components supporting the solar panels, whereby the addition of an extra support may be required or desirable to stabilize such a half-bridge structure. However, the design of Figures 1, 2 and 3, in which the support structures are bridge structures, is preferred. These bridge structures are described in more detail below with respect to Figures 4-10. The hinge arms200, 201 serve to connect various bridge structures, each designed to support two solar panels in an east-west arrangement, in a longitudinal direction25 (north-south direction). These bridge structures are modular, in the sense that they can be arranged in different configurations and can be interconnected. Along the said longitudinal direction, for example, one or more bridge structures can be added, which can then also be connected to each other and to the shown bridge structures by means of hinge arms200,201. In addition, it is possible to add one or more bridge structures along a width direction (east-west direction), which can then, for example, be connected to the bridge structures shown by inserting one or more pins through a longitudinal penetration in both bridge structures to be connected. In the design shown in Figure 3, each support structure is provided with a wall penetration120,121, and two support structures can be hinged together35 2025 / 5052 BE2025 / 5052 34 in a width direction (the horizontal direction in Figure 3) by positioning these support structures in such a way that their respective wall penetrations120,121 lie in line with each other, and by inserting a wall hinge pin through these wall penetrations120,121. In this way, a composite load-bearing structure are obtained, consisting of various support structures100, 101, which are interconnected in a longitudinal direction by means of hinge arms200,201,5 and / or in a width direction by means of wall hinge pins. Figure 4 shows a design of a load-bearing structure for supporting solar panels in an east-west arrangement, consisting of a single support structure100, specifically a bridge structure, which is designed to support two solar panels. This design form10 corresponds to the first support structure100 from the load-bearing structure in Figures 1-3. The bridge structure100 comprises a first truss structure500 and a second truss structure501, each of which is essentially upright V-shaped, in the sense that, viewed from a front view as also shown in Figure 3, they essentially have the shape of an inverted letter V. The first truss structure500 has a peak510 and the second truss structure501 has a peak511, which peaks15 form the highest points of the respective truss structures. The first truss structure500 is provided with a first support foot310 and a second support foot311, and the second truss structure501 is provided with a first support foot312 and a second support foot313,which support feet are intended to rest on a ground. The first support foot310 and the second support foot311 of the first truss structure500 are provided on either side of the top510, such that a part of the first truss structure500 is situated at a distance above the ground between the first support foot310 and the second support foot311, and the first support foot312 and the second support foot313 of the second truss structure501 are provided on either side of the top511, such that a part of the second truss structure501 is situated at a distance above the ground between the first support foot312 and the second support foot313. The bridge structure100 shown in Figure 4 further comprises three crossbeams 400, 401 and 402 arranged to support the first truss structure500 and the second connect truss structure 501 with a map, specifically a central crossbeam 400 and two non-central crossbeams 401 and 402 located on either side of the central crossbeam 400. Alternative forms of designing a bridge structure 100 comprise only a single crossbeam, for example the central crossbeam 400, or comprise only two crossbeams,for example the non-30 central crossbeams 401 and 402. To guarantee optimal stability, especially for load-bearing structures made of plastic, for example by injection molding, it is however preferable to provide three crossbeams 400, 401, and 402 per bridge structure 100. 2025 / 5052 BE2025 / 5052 35 The first truss structure500 is formed with a first upward-sloping support frame300 and a second upward-sloping support frame301, whereby the first support frame300 and the second support frame301 are connected to each other, specifically attached to each other or clicked together, at a certain height above the ground. The second truss structure501 is also formed with a first upward-sloping support frame302 and a second upward-sloping support frame303, whereby the first support frame302 and the second support frame303 are connected to each other, specifically attached to each other or clicked together, at a certain height above the ground. The first support frame300 of the first truss structure500 is identical to the first support frame302ofthesecondtrussstructure501,and the second support frame301 of the first truss structure500 is identical to the second support frame303 of the second truss structure501.10 Furthermore, the first support frame300 and the second support frame301 of the first truss structure 500 are essentially mirror images of each other, with the exception of the parts with which the first support frame 300 is attached to the second support frame301, namely the support frame penetrations390,391, which will be discussed in more detail with regard to Figures 6-7. 15 The crossbeams 400, 401, 402 of the bridge structure 100 of Figure 4 comprise, as already mentioned, a central crossbeam 400 and two non-central crossbeams 401, 402 which are situated on either side of the central crossbeam 400. In this respect, the central crossbeam 400 extends from the part of the first truss structure 500 that is situated at a certain height above the ground between the first support foot 310 and the second support foot 311, to the corresponding part of the 20 second truss structure 501,specifically the section situated between the first support foot 312 and the second support foot 313 at a certain height above the ground. The first non-central crossbeam 401 extends from the first support foot 310 of the first truss structure 500 to the first support foot 312 of the second truss structure 501, and the second non-central crossbeam 402 extends from the second support foot 312 of the first truss structure 500 to the second support foot 25 313 ​​of the second truss structure 501. In contrast to the hinge arms 200, 201, the crossbeams 400, 401, 402 are preferably non-hinged, but rather rigidly connected to the truss structures and support frames, and are positioned at a certain height above the ground. All load-bearing structures shown are preferably manufactured mainly of plastic, specifically30 preferably by injection molding, and are composed of one or more support structures100,101, preferably bridge structures, which enclose wall sections, specifically the support frames300,301,302,303 which together form the truss structures500,501, which wall sections are mainly flat,however are provided with a grid pattern to reinforce the support structure, preferably over the entire support frame and in particular near the hinge arms and / or the crossbeams.35 2025 / 5052 BE2025 / 5052 36 In the load-bearing structure of Figure 2, the first support structure100 and the second support structure101 are identical bridge structures, identical to the bridge structure of Figure 4. As shown in Figure 4, the first hinge arm200 extends from the first support frame300 of the first truss structure500 of the second support structure101 to the first support frame302 of the second truss structure501 of the first support structure100,and the second hinge arm 201 extends from the second support frame 5 301 of the first truss structure 500 of the second support structure 101 to the second support frame 303 of the second truss structure 501 of the first support structure 100. On the bridge structure 100 of Figure 4, two solar panels A and B can be attached in the manner shown in Figures 1-3. More specifically, a first solar panel A can be attached to the first support frame 300 of the first truss structure 500 and the first support frame 302 of the second truss structure 501, specifically attachable between the top of the first truss structure 500, the top of the second truss structure 501, a first end of the first truss structure 500 which forms an end of the first support frame 300 and a first end of the second truss structure 501 which forms an end of the first support frame 302. Analogously, a second solar panel B can be attached to the second support frame 301 of the first truss structure 500 and the second support frame 303 of the second truss structure 501, specifically attachable between the top 510 of the first truss structure 500, the top 511 of the second truss structure 501,a second end 521 of the first truss structure 500 which forms an end of the second support frame 301 and a second end 523 of the second truss structure 501 which forms an end of the second support frame 303. The support frames of the bridge structure 100 of Figure 4 are shown in more detail in Figures 6-7, where Figure 6 shows a front view of the first support frame 300 and Figure 7 shows a front view of the second support frame 301. 25 The first support frame 300 encloses the first support foot 310 of the first truss structure 500, and the second support frame 301 encloses the second support foot 311 of the first truss structure 500, where both support feet are intended to rest on a ground. 30 The first support frame300is formed with an upper leg 360 sloping upwards at a certain height above the underground and a lower leg 370 sloping upwards from the underground,and analogously, the second support frame301 is formed with an upper leg361 sloping upwards at a certain height above the ground and a lower leg370 sloping upwards from the ground. When the first support frame300 and the second support frame301 are connected to each other in the formation of a truss structure500, then the upper leg360 of the first support frame300 and the upper leg361 of the second support frame301 touch each other near the top510 of the truss structure500, and the lower leg370 of the first support frame300 and the lower leg370 of the second support frame301 touch each other at a certain height above the ground, in order to obtain in this way the characteristic upright V-shape of a truss structure. The5 the entire part of the first support frame300 that extends between the bases and the thigh360 then forms the first support foot310, and analogously the entire part of the second support frame301 that extends between the bases and the thigh361 then forms the second support foot311. 10 In the execution form of Figures 6-7 the thigh360,361 and the lower leg370 connected by three connecting beams380, such that the upper leg360,361, the lower leg370 and the connecting beams380 define different triangular-shaped recesses in the support frame 300,301. Alternative forms of a support frame are formed with a smaller number of connecting beams380, for example two connecting beams380 per support frame,15 whereby the defined recesses can take on other shapes, or is the part of a support frame between the lower leg370 and the upper leg360,361 formed as a single wall without recesses and connecting beams, specifically as a flat wall or a wall that is reinforced at certain places with a grid pattern. Such forms of design without recesses and connecting beams are generally stronger on the one hand and provide, in comparison with the20 embodiment of Figures 6-7, for increased stability, but are on the other hand more difficult to manufacture, particularly when the support frames are mainly manufactured from plastic, for example by injection molding. The support frames 300, 301,302,303 further encompass each a hinge arm opening130,131, as shown in Figures 6-7, such that the first support structure100 is arranged for attaching the first end210 of the first hinge arm200 into the hinge arm opening130 of the first support frame302 of the second truss structure501 of the first support structure100, and for attaching the first end210 of the second hinge arm201 into the hinge arm opening130 of the second support frame303 of the second truss structure501 of the 30 first support structure100, and such that the second support structure101 is arranged for attaching the second end211 of the first hinge arm200 into the hinge arm opening 131 of the first support frame300 of the first truss structure500 of the second support structure 101, and for attaching the second end211 of the second hinge arm201 in the hinge arm opening131 of the second support frame301 of the first truss structure500 of the 35 2025 / 5052 BE2025 / 5052 38 second support structure101. The hinge arm openings130,131 preferably have a predominantly rectangular cross-section,in accordance with the rectangular cross-section of the hinge arms 200, 201. The support frames 300, 301, 302, 303 further enclose a first passage 330 and a second passage 331 which open into the hinge arm opening 130, 131 and lie in line with each other along both sides of the hinge arm opening 130, 131. The first passage 330 and the second passage 331 are both horizontal passages, in the sense that they mainly extend along a horizontal direction in the plane of the support frame. 10 Figure 11 shows a design of a hinge arm200,201, which has a first end210 with which the hinge arm200,201 can be connected to a first support structure100, and a second end211 with which the hinge arm200,201 can be connected to a second support structure101. The first end210 of a hinge arm200,201 is provided with a first hinge arm feed-through230 and the second end211 of a hinge arm200,201 is 15 provided with a second hinge arm feed-through231, which hinge arm feed-throughs230,231 are essentially cylindrical in shape and are designed to enclose an essentially cylindrical pin, preferably a hinge pin340,342. A design of such a pin is shown in Figure 16. 20 The first support frame302 of the second truss structure501 of the first support structure100 is configured for installing a first hinge pin340 in the first bushing330 and the second bushing331 for the hinged connection of the very first support structure100 with the first hinged arm bushing230 of the first hinged arm200, and the first support frame300 of the first truss structure500 of the second support structure101 is configured for installing a second hinge pin342 in the first bushing33025 and the second bushing331 for the hinged connection of this second support structure101 with the second hinged arm bushing231 of the said first hinged arm200. The same applies mutatis mutandis to the second hinged arm 201. 30 Figure 3 shows a front view of a bridge structure100, in which a front view of the first and second hinge arm is also visible200,201 which are fitted in the respective hinge arm openings130, and in which the horizontal hinge pins340 are visible. The first hinge pins340 and the second hinge pins342 each form, in the first support structure100 2025 / 5052 BE2025 / 5052 39 and second support structure101 respectively, a horizontal axis220 and 211 around which the hinge arm200,201 is arranged to move in a hinged manner. In addition to the first and second hinge arm conduits, a hinge arm200,201 can also include additional hinge arm conduits near one of the ends210,211 or at other locations, in order to be able to adjust the distance between two interconnected support structures100,101 in a longitudinal direction. Thus, in the design shown in Figure 11, the hinge arm200 has an additional hinge arm conduit232 near the second hinge arm conduit231, which can take over the role of the second hinge arm conduit231 in case a shorter distance between two consecutive support structures100,101 is desired in the load-bearing structure.10 The support frames300,301,302,303 further encompass each a recess350, whereby the first pass-through330 extends between the hinge arm opening130,131 and recess350. Each support frame300,301,302,303 is configured for inserting the first hinge pin340 and second hinge pin342 respectively into the first pass-through330 from recess350, in the manner as 15 illustrated in Figures 8-9. Preferably, a fully installed hinge pin340,342 thus extends from the first pass-through330 of a support frame, through the hinge arm pass-through230, 231 of a hinge arm200,201 inside the hinge arm opening130,131 of a support frame, to the second pass-through231 of this support frame. 20 As indicated above, support frames, in the form of execution shown in Figures 6-7, also each comprise four recesses shaped mainly as a triangle between the upper leg 360, 361 and the lower leg 370 of the support frame, where one of these recesses, which we will call the second recess 351,is located closest to recess 350. This second recess is such that the second pass-through 330 extends from the second recess 351 to the 25 hinge arm opening 130,131. Other than as an addition to what we have described above, the support frames can also be configured for inserting the first hinge pin 340 and the second hinge pin 342 respectively into the second pass-through 331 from the second recess 351, without affecting the functionality of the hinge arms 200,201. In general, it is preferable to insert the hinge pins 340,342 in a horizontal 30 direction, or at an oblique downward direction, if the supporting structure is tilted whereby the the first and second passages330,331 are not in an absolute horizontal position. In such a situation, the slope of the ground determines which of the first passage330 and the second passage331 is at the greatest height,and thus which of the two possible application directions is a downward direction. It is advantageous to have the option to install the 35 2025 / 5052 BE2025 / 5052 40 hinge pins from both the first recess350 and the second recess351, as this offers the flexibility to always install the hinge pins340,342 in a downward direction, regardless of the slope and slope direction of the substrate. 5 In alternative designs as already described above, in which the section of a support frame between the lower leg370 and the upper leg360,361 is formed as a single wall without recesses and connecting beams, such a second recess351 is missing and the hinge pins340,342 can only be installed from the recess350. 10 As shown in Figures 6-7, support frames300,301,302,303 furthermore contain a crossbeam opening320,321, and these support frames are arranged for installing an end 410,411 of a crossbeam400,401,402 in the crossbeam opening320. More specifically, they comprise,in the execution form of Figures 4 and 6-7, the first support frame 300 and the second support frame 301 of the first truss structure 500 each enclose a crossbeam opening 320, and the first support frame 15 302 and the second support frame 303 of the second truss structure 501 each enclose a crossbeam opening 321, whereby the first support frame 300 of the first truss structure 500 is arranged for the installation of a first end 410 of a first non-central crossbeam 401 in the crossbeam opening 320 of the support frame 300, the first support frame 302 of the second truss structure is arranged for the installation of a second end 411 of the said first 20 non-central crossbeam 401 in the crossbeam opening 321 of the support frame 302, and mutatis mutatis for the second non-central crossbeam 402 and the support frames 301 and 303. Furthermore, the support frames 300, 301, 302, 303, at the level of the support frame penetrations 390, 391 with which two support frames are connected to each other, are formed in such a way that the truss structure 500, 501 obtained by connecting two support frames with each other, next to the two non-central 25 crossbeam openings 320,321 as described above, also includes a third crossbeam opening320, namely a central crossbeam opening320. This is shown in, for example, Figures 3 and 10. The first truss structure500 is consequently arranged for the installation of a first end410 of the central crossbeam400 in the central crossbeam opening320, and the second truss structure is arranged for the installation of a second end411 of the central 30 crossbeam400 in the central crossbeam opening321. As already mentioned, alternative designs of a bridge structure100 do not include three crossbeams400, 401, 402 such as the designs in Figures 4 and 6-7, but only a single crossbeam, namely the central one. crossbeam400, or only two crossbeams, namely the two non-central crossbeams401 and402. In these alternative execution forms comprising span structures500,501 and support frames300,35 2025 / 5052 BE2025 / 5052 41 301,302,303 then also exclusively the central crossbeam opening320,321 but not the non-central crossbeam openings, respectively exclusively the non-central crossbeam openings320,321 but not the central crossbeam opening. Other design forms include, instead of the height of the central crossbeam opening320 in Figure 10, a hinged arm opening130,131 and one or more horizontal penetrations330,5 331 originating from this hinged arm opening130, whereby the corresponding support structures100,101 are then arranged to be hinged together by means of an extra central hinged arm202 which must then be installed at its ends210,211 in the respective central hinged arm openings 130,131, and must be connected to the respective truss structures500,501 by means of hinge pins340,342. In the resulting alternative design forms of a load-bearing structure, a first support structure100 and a second support structure101 are then with connected to each other by means of three hinge arms, specifically two non-central hinge arms 200,201 and an extra, central hinge arm202, or become the support structures100,101 connected to each other exclusively by means of the central hinge arm202 and the non-central hinge arms200,201, as well as the associated hinge arm openings130,131 and conduits330,15 331, are omitted. The design as shown in Figures 1-3, with two non-central hinge arms200,201 for every pair of support structures100,101, and with three crossbeams 400,410,402 per support structure100,101, is however preferred and exhibits the best stability without, however, compromising functionality with regard to accommodating height differences of a subsoil.20 Near each crossbeam opening320,321 around the support frame300,301,302,303 further a connecting bushing 332 that opens into the crossbeam opening 320, 321, specifically a vertical connecting bushing 332 that extends between the recess 350 and the crossbeam opening 320, 321. Optionally, located in the extension of this connecting bushing 332, in a section of the 25 support frame that is situated between the said crossbeam opening 320, 321,a second connecting bushing333. The support frames of Figures 6-7 include such a second connecting bushing333, which extends from the crossbeam opening320,321 to a part of the support foot310,311,312,313. 30 Figure 12 shows an embodiment of a crossbeam 400, 401, 402, which has a first end 410 to which the crossbeam 400, 401, 402 can be connected to the first truss structure 500 of a bridge structure 100, and a second end 411 to which the crossbeam 400, 401, 402 can be connected to the second truss structure 501 of a bridge structure 100. The first end 410 of a cross beam 400, 401, 402 is provided with a first cross beam passage 420, and 35 2025 / 5052 BE2025 / 5052 42 the second end 411 of a cross beam 400, 401, 402 is equipped with a second crossbeam bushing 421, which crossbeam bushings 420, 421 are essentially cylindrical in shape and are designed to enclose a essentially cylindrical pin, preferably a connecting pin 341, 343. A design of such a pin is shown in Figure 16. 5 The first truss structure 500 is designed for the installation,in each connection bushing332, of a first connection pin341 for connecting this truss structure500 with the first crossbeam bushing420 of a crossbeam400,401,402, and the second truss structure501 is designed for installing, in the corresponding connection bushing332 of the second truss structure501, a second connection pin343 for connecting this truss structure10 501 with the second crossbeam bushing421 of the said crossbeam400,401,402. The installation of the first and second connecting pin341,343 proceeds, for the two non-central crossbeams401,402, preferably from the recess350, as illustrated in Figures 8-9. Preferably, a fully installed connecting pin341,343 therefore extends at least from the first passage330 of a support structure, through the crossbeam passage420,421 of a crossbeam401,402 inside the crossbeam opening320,321 of a support structure,optional up to the second pass-through231 of this support frame. For the central crossbeam400, the installation of a connecting pin proceeds in a vertical20 downward direction from a point above the top510,511 of the truss structure500,501, as will be explained in more detail further on. Figure 3 shows a front view of a bridge structure100, in which a front view is also visible of the central crossbeam400, the first non-central crossbeam401 and the second non-central25 crossbeam402, which are installed in the respective crossbeam openings320, and in which the vertical connecting pins341 are visible. A crossbeam400,401,402 can also include additional crossbeam penetrations near one of the ends410,411 or at other locations, in order to be able to adjust the distance between two interconnected truss structures500,501 in a longitudinal direction. Thus, in the design shown in Figure 12, the crossbeam400 has an additional crossbeam penetration422 near the first crossbeam penetration420,which can take over the role of the first crossbeam penetration420 in case a shorter distance between the first and second truss structure500,501 is desired in the bridge structure100.35 2025 / 5052 BE2025 / 5052 43 In construction forms with two non-central crossbeams, which are attached at the same height above the substrate, such additional crossbeam penetrations can also serve to attach an additional beam on or under these two non-central crossbeams, specifically in a direction perpendicular to the two non-central crossbeams, in order to further reinforce the load-bearing structure. This additional beam must then be connected to the non-central crossbeams by means of additional penetrations and5 additional pins. This may be desirable, for example, when the load-bearing structure needs to be placed in areas with frequent snowfall, supporting structures must be able to bear additional loads from, for example, snow in addition to the solar panels. 10 In every truss structure500,501of a bridge structure100the first support frame300,302 is connected to the second support frame301,303 by means of a dovetail joint, as shown in Figure 3 and in more detail in Figures 5 and 10. The support frames 300, 301, 302, 303 are provided on one side with three dovetail-shaped projections each, which are complementary to and fit into the projections of the support frame to be connected with them, in order to form a 15 dovetail joint. More specifically, the first support frame300,302 of each truss structure500,501, as shown in Figure 6, is equipped with a first support frame bushing390 which extends over the three aforementioned dovetailed projections, and the second support frame301,303 of each truss structure20 500,501, as shown in Figure 7, is equipped with a second support frame bushing391 which extends over the three aforementioned projections. These support frame bushings390,391 are vertical bushings which are mainly cylindrical in shape and are designed to enclose a mainly cylindrical pin, preferably a support frame pin345. An execution form of such a pin is shown in Figure 16.25 Each truss structure500,501 is configured for installing a support frame pin345 through the first support frame bushing390 and the second support frame bushing391, for connecting the first support frame300,302 with the second support frame301,303 of the truss structure500,501. This installation is preferably carried out in a vertical downward direction from a point located above the top30 510,511 of the truss structure500,501. This installation is illustrated in Figures 5 and 10, and Figure 3 shows, among other things, a truss structure500,501 in which the support frame pin345 is installed. 2025 / 5052 BE2025 / 5052 44 In execution forms with a central crossbeam400, as shown in Figure 4, in each truss structure500,501, the connection bushing332 belonging to this central crossbeam400 is formed by the first support frame bushing390 and the second support frame bushing391, and the first connection pin341 coincides with the support frame pin345 of the first truss structure500,and the second connecting pin343 coincides with the support frame pin345 of the second truss structure501.5 In such execution forms, the function of the support frame pin345 is therefore twofold: on the one hand, it serves to connect the first support frame300,302 of this truss structure500,501 with the second support frame301,303 of this truss structure500,501, while on the other hand, the support frame pin345 also ensures the connection of the central crossbeam400 with this truss structure500, 501, and thus plays the role that the connecting pins341,343 play for the non-central crossbeams10 401,403. The entire process of passing the first and second support frame through390,391 consequently plays for The decentralized crossbeam 400, the vertical connection bushing 332, and the optional second vertical connection bushing 333 serve as the non-central crossbeams 401, 402. Due to its specific design as shown in Figures 8-10, this assembly of support frame bushings 390, 391 also serves as a dovetail joint between the first support frame 300, 302 and the second support frame 301, 303 of the respective truss structures 500.501. A fully installed support frame pin345 in this version therefore extends from the top510,511 of a truss structure500, through the various parts of the first support frame penetration390 and the various parts of the second support frame penetration391 located above the central crossbeam opening320, through the crossbeam penetration420,421 of a central20 crossbeam400 within the central crossbeam opening320, to the parts of the first and second support frame penetration390,391 located one hundred and the central crossbeam opening320. The bridge structure 100 of Figure 4 further comprises two multiples of clamps, each comprising a first clamp 600, a second clamp 601, a third clamp 602 and a fourth clamp 603. The first support frame 300 and the second support frame 301 of the first truss structure 500 are each arranged near a first end 520 and 521 respectively to be coupled with the first clamp 600, and near a second higher end 510 that corresponds with the top of the truss structure 500,arranged to be coupled with the second clamp 601. Furthermore, the first support frame 302 and the second support frame 303 of the second truss structure 501 are each arranged near a first end 30 522 and 523 respectively to be coupled with the third clamp 602, and near a second higher end 511 that corresponds to the top of the second truss structure 511, arranged to be coupled with the fourth clamp 603. The entire bridge structure 100 is arranged in this way to hold a first solar panel A between the first clamp 600 and the second clamp 601 of the first support frame 300 of the first truss structure 500 and the third clamp 35 2025 / 5052 BE2025 / 5052 45 602 and the fourth clamp 603 of the first support frame 302 of the second truss structure, and for holding a second solar panel B between the first clamp 600 and the second clamp 601 of the second support frame 301 of the first truss structure 500 and the third clamp 602 and the fourth clamp 603 of the second support frame 303 of the second truss structure 501, such that of each solar panel A, Been first and is included in the respective first clamp 600 and third clamp 602,and a second edge is incorporated into the respective second clamp 601 and fourth clamp 603. Figures 1-3 illustrate how solar panels A, B, C, and the first stone of the second support structure 100, 101 are attached, and Figure 5 illustrates the coupling of the various support frames with the various clamps. 10 More specifically, each support frame300,301,302,303, as shown in Figures 6-7, in the upper leg 360,361, near the said first end520,521,522,523, shall be provided with a first channel610, 612 in which the first clamp600 and the third clamp602 respectively are sliding, and likewise in the upper leg360,361, near the said second end510,511 that corresponds to the top of the truss structure500,501, shall be provided with a second channel611,613 in which the second clamp601 and the fourth clamp603 respectively are sliding. Preferably, the clamps600,601 are 602,603 ​​shaped in such a way that they can be slid through perfectly into the channels 610,611,612,613, without further anchoring in the support frames 300,301,302,303 being required. These channels 610,611,612,613 are preferably formed as cutouts in and just below the upper leg360 of a support frame, which are partially spanned on one side by flanges.20 The clamps600,601,602,603 ​​are shown in Figures 13-14 and comprise a lower section that slides into the channels, a predominantly vertical section configured to rest against an edge of a solar panel when this edge is inserted into the clamp, and an upper section configured to span a section of an edge of a solar panel25 on one side. The height of the clamps to be used is determined by the thickness of the solar panel in question, with heights of, for example, 25 mm, 30 mm, or 35 mm being common. When the clamps are manufactured by injection molding, typically with one single molds are worked, which then correspond, for example, to a clamp with a height of 35 mm, and which can also be used for the manufacture of shorter clamps by inserting a small insert into the mold during injection molding. As illustrated in Figures 6-7 and also visible in Figure 4,each support frame300,301, 302,303 near an upper surface, specifically on top of the upper leg360,361 and between the said first end520,521,522 and532 and the top510,511 of the truss structure500,501, also includes several35 2025 / 5052 BE2025 / 5052 46 cable support devices700,701, designed for holding a cable under a solar panel attached to the support frame. In the design shown in Figure 4, each support frame300,301, 302,303 is provided with such cable support devices700,701, but in principle it is sufficient that per solar panel only one of the two support frames supporting the solar panel is provided of one or more such cable support devices, for example that the first support frame3005 of the first truss structure500is provided with a first cable support device700 that is designed for holding a cable under the first solar panelA,and that the second support frame 301 of the first truss structure 500 is provided with a second cable holder 701 that is designed for holding a cable under the second solar panel B. 10 As shown in Figures 4 and 6-7, the cable support devices 700, 701 form an integral part of the respective support frames 300, 301, 302, 303, the support frames 300, 301, 302, 303 being manufactured in one piece with the cable support devices 700, 701, preferably of plastic, for example by injection molding, and the cable support devices 700, 701 are formed as a flange protruding from the said top surface of the relevant support frame 300, 301, 302, 303. A cable that runs under the solar panel A, B, C, D can then be held under these flanges and run down along the top leg 360, 361. In the design shown in Figure 4, each support frame 300, 301, 302, 303 is also provided with a ballast carrier 800, 801, 802, 803, which is designed to carry ballast, in the form of, for example, sandbags or paving slabs, for further stabilization of the supporting structure. Such a ballast carrier 800, 801, 802,803 is shown in Figure 15 and in front view is essentially formed as a triangle with a widened notch through which the ballast carrier 800, 801, 802, 803 can be attached to a support frame 300, 301, 302, 303, preferably by sliding without the need for further anchoring means. For the purpose of attaching the ballast carriers 800, 801, 802, 803, the support frames 300, 301, 302, 303 also each contain a channel 810 inside the recess 350 into which a ballast carrier can be attached by sliding. The ballast carriers 800, 801, 802, 803 are flat on one top surface with upright flanges on both sides, such that ballast can be placed stably on this top surface, where the upright flanges serve to prevent this ballast from falling down from the ballast carriers to a support structure 100,101 and pulling it out of balance. Optionally, a computer program can determine at which locations of a composite support structure it is advantageous to place ballast, and what weight of ballast should be provided at the various locations,in order to respond optimally to the specific35 2025 / 5052 BE2025 / 5052 47 circumstances, for example weather conditions, size of the entire PV installation, or expected occupancy of the support structures with solar panels. Thus it is possible that every support frame in the support structure is provided with a ballast carrier800,801,802,803, but that in use only a few of these ballast carriers are actually provided with ballast. 5 These ballasts and ballast carriers are optional, in the sense that the shown support structures are considered to be sufficiently stable for supporting solar panels even without further stabilization by means of ballast, however this further stabilization by means of ballast can be advantageous and desirable in certain situations, to guarantee extra robustness against, for example, certain types of subsoils and certain weather conditions.10,