System and method for joining textile reinforced structural modules, printer description file

Abstract

The invention relates to a system and a method for joining textile-reinforced structural modules along a connecting edge (76) which has an edge groove (74) comprising yarn loops (4). According to the invention, the system comprises a wedge element (410) and two shell elements (420) with a wedge groove (422) and is designed for insertion into the two edge grooves (74) with the overlapping yarn loops (4), wherein the wedge element (410) is further designed for partial withdrawal from the two opposing wedge grooves (422), so that the shell elements (420) can be spread apart from each other by means of a wedge action and the yarn loops (4) can be drawn together.

Description

[0001] The invention relates to a system and a method for joining textile-reinforced structural modules along at least one joining edge, wherein each structural module has at least one edge groove comprising yarn loops that circumferentially extends at least along the joining edge. The invention further relates to a printer description file for producing a wedge element and / or a shell element as parts of the system for joining textile-reinforced structural modules.

[0002] Devices and methods for producing textile reinforcement are known from the prior art, as is the production of doubly curved shapes or freeforms.

[0003] From German patent application DE 20 2006 007 316 U1, a system for connecting reinforced structural modules is known, in which each structural module has at least one edge groove with loops extending at least along the connection edge, and the device comprises a wedge element with wedges on at least one outer surface. Shell elements, which have corresponding inner surfaces with the wedges, are also included. The wedge element and the at least one shell element are designed for insertion into the at least two edge grooves with the overlapping loops, such that the wedges and the corresponding surfaces face each other.The wedge element is designed for partial extension or insertion, here by means of a thread, relative to at least one shell element, so that, through the wedge action between the wedges and the corresponding surfaces, the shell elements are spread apart from each other, and the overlapping loops encircling the device are simultaneously drawn together. However, the loops are not connected to the reinforcement; they are embedded in the less load-bearing matrix material into which the forces are transferred. The shell elements are short, rigid, and straight-tubed, so they do not allow for either a continuous connection or the connection of non-linear edge grooves. Each individual shell element must also be fixed separately to spread the adjacent loops and represents only a locally acting connection.

[0004] It is therefore the object of the present invention to offer a device and a method for connecting structural modules flexibly and securely.

[0005] The problem is solved by a system for connecting textile-reinforced structural modules, hereinafter also referred to as edge connections, wherein the structural modules are preferably concrete structural modules and the connection is made along at least one connecting edge. The connecting edge is one of the outer edges of the structural modules, which is prepared and suitable for connection, in particular by means of protruding yarn loops that are part of the textile reinforcement and formed edge grooves. Each of the structural modules therefore has yarn loops that encircle at least partially along the connecting edge. Encircling means that one yarn loop is formed next to another, preferably at uniform intervals, across the relevant area.The yarn loops can originate from the reinforcement emerging from the curing material, formed by the yarn loops placed around the yarn holding device, or yarn loops inserted separately into the curing material, preferably concrete, without direct connection to the reinforcement. Furthermore, an edge groove along the connection edge is required because the connecting elements can be concealed within it, while the two edges bordering the edge groove serve as connection edges for positioning the structural modules to be joined.

[0006] A system for connecting textile-reinforced structural modules, hereinafter referred to as an edge connection, is provided for insertion into the at least two edge grooves arranged opposite each other for assembly and connection, with the overlapping yarn loops emerging there as part of the textile reinforcement of the structural modules to be joined. The edge connection comprises at least one, preferably at least two, shell elements, for example designed as flat shells, each of which, according to the preferred embodiment, has a wedge groove, and a wedge element that is inserted between the shell elements. According to an advantageous embodiment, the wedge element and / or the shell elements also have their own internal reinforcement to increase tensile strength and / or compressive strength.

[0007] According to the present invention, the yarn loops are part of the textile reinforcement of the structural modules and are integrally connected to it. This means that a yarn first passes through the area of ​​the textile reinforcement inside the structural module, then exits the structural module in the area of ​​the edge grooves and forms the loop.

[0008] The wedge element and the at least one shell element forming the edge or central connection follow the contour of the connection edge continuously along its entire length. This applies particularly even if the connection edge is non-linear, e.g., in curves to which the wedge element and the at least one shell element are able to adapt. The wedge element and the at least one shell element enable this adaptation through the use of materials that withstand compressive loads perpendicular to the longitudinal axis but are nevertheless flexible or plastically deformable in the longitudinal direction. The compressive load is evenly distributed along the length of the shell elements by the multitude of yarn loops, thus avoiding local load peaks.

[0009] Instead of the formability of originally straight-aligned wedge elements and shell elements, an advantageous embodiment also provides for the production of the wedge elements and shell elements in an additive manufacturing process, e.g. in a 3D printer, in the desired curve profile defined by the course of the edge grooves of the structural modules.

[0010] Wedge elements and / or shell elements, according to an advantageous further development, consist of a composite material with fiber reinforcement. This can include, for example, carbon or glass fibers, as well as epoxy resin as a matrix material. Alternatively, the structure can also be made of layers of a composite material or another suitable sheet material. The choice of material also effectively avoids corrosion problems.

[0011] The wedge element serves the purpose of being inserted into the two opposing wedge grooves of the shell elements, so that when the wedge element is partially extended, the shell elements are spread apart and the overlapping yarn loops are drawn together. This is achieved by a preferably redundant wedge-shaped design of the contacting surfaces, whereby the wedge action is created between the outer surface of the wedge element and the inner surfaces of the wedge grooves, which face the wedge element when installed. A relative longitudinal movement of the wedge element and shell element in a first direction of movement causes the wedges of the wedge element and the wedge groove, which are embedded in the surfaces and interacting, to run up against each other, resulting in a spreading movement of the shell elements away from the wedge element.

[0012] Since the yarn loops of one structural module are wrapped around the edge connection located on the side of the edge connection facing away from that module, this structural module is drawn towards the edge connection. The second structural module is drawn towards it in a similar manner, so that both structural modules are pulled together and ultimately firmly connected by the tightening of the connecting edges.

[0013] Depending on the embodiment of the device for connecting textile-reinforced structural modules, the yarn loops overlap in different ways. According to a first embodiment, the yarn loops of both structural modules to be connected have the same orientation and interlock before the device for connecting textile-reinforced structural modules is inserted into the yarn loops.

[0014] In an advantageous embodiment, the shell elements and wedge elements are flexible and follow the curvature of the edges of the structural modules. This allows the freeform structural modules according to the invention to be assembled into a component. The freeform surface comprises a simple curvature, a double curvature, a ruled surface composed of straight lines in a specific way, a surface of revolution, a translational surface, a non-uniform rational B-spline (NURBS, a mathematically defined curve or surface for modeling arbitrary shapes), and geometrically undefined surfaces.

[0015] According to an alternative embodiment of shell elements and wedge elements, more than two structural modules can also be connected. In this solution, these modules must be inserted into the yarn loops of each of the structural modules to be connected.

[0016] In a preferred embodiment, the interlocking yarn loops are aligned such that they form a common opening for inserting the edge connection. In particular, in this preferred embodiment, the yarn loops are aligned perpendicular to the longitudinal direction of the edge groove, although alternative angular positions are also provided. Alternatively, the yarn loops are aligned in the plane of a connection edge and each is bound into a loop bed by a connection edge. During assembly, the loop bed is also spread by means of shell elements and a wedge element, but in a modified design. The advantage of using loop beds is that the complex insertion of shell elements and a wedge element into the overlapping yarn loops is not required.

[0017] A solution in which the contact surfaces between the shell element and the wedge element have an intermediate rolling track helps to reduce friction losses and increase the spreading force.

[0018] It has also proven advantageous to provide an assembly aid that engages in the edge grooves of the structural modules to be joined and holds them in the required position for assembly. It is particularly advantageous if shell elements and wedge elements can be guided inside the assembly aid, allowing the aid to remain within the joined structural modules. This not only facilitates the positioning of the structural modules and their subsequent connection but also simplifies the assembly process.

[0019] A textile-reinforced structural module, comprising the textile reinforcement and a curable material, in particular concrete, is a self-contained module intended as part of a larger, superior structure or component, and which is assembled with other structural modules to form the component. A curable material is any material that can be poured into a mold and cure there to form a solid structural module. Within the scope of the present invention, concrete is specifically provided as such a curable material.

[0020] The object of the present invention is also achieved by a method for joining textile-reinforced structural modules along at least one joining edge, wherein each structural module has at least one edge groove having yarn loops that at least partially circumferentially extends along the joining edge. According to the invention, an edge connection is introduced into both joining edges, which are already arranged opposite each other in the assembly position and whose yarn loops interlock. The edge connection comprises a shell element, each having a wedge groove, with a wedge element inserted between the wedge grooves. The wedge element is then inserted into the two wedge grooves arranged opposite each other.Shell elements are shifted relatively far, preferably extended in practical application, until the shell elements with the overlapping yarn loops are spread apart from each other by wedge action and the structural modules, especially the connecting edges, are simultaneously pulled together.

[0021] The use of a fixing agent secures the resulting connection against unwanted loosening of the wedging, for example, due to vibrations. Even if the wedge element is only partially extended, the fixing agent prevents it from springing back into place. A curable material can be used as the fixing agent; this is injected into the spaces between the wedge element and the shell elements, particularly between the wedge grooves and the wedge element, creating a permanent, non-removable bond. The curable material can be concrete or epoxy resin, which is less aggressive than concrete on the shell elements and wedge element.

[0022] Alternatively, a releasable fixing element can be used. This is implemented, for example, as a mechanical fastener, in particular a screw-in bolt, which secures the wedge element relative to one or both shell elements or to the structural element. Another embodiment of a releasable fixing element is a non-curable material or a curable material with a defined compressive strength, which, while preventing the connection from loosening under vibration, can be overcome by a corresponding pull-out force applied to the wedge element.

[0023] Another aspect of the present invention relates to a concrete component consisting of concrete structural modules manufactured according to a method and its variants as described above, which are joined to form the concrete component according to a method also described above. It is further provided that the concrete component can have additional types of textile reinforcement. This includes a tubular reinforcement element formed in a grid-like structure using at least one continuously arranged, intersecting yarn. The intersecting sections of the at least one yarn are connected to one another in such a way that the connection exhibits shear elasticity, enabling the reinforcement element to withstand the intended elongation in the direction of a longitudinal axis of the reinforcement element and the resulting deformation in the transverse direction.Another type of reinforcement, a textile shear reinforcement in the form of a box section, is particularly suitable for connecting two sandwich-like shells of a concrete component.

[0024] Another aspect of the present invention relates to a printer description file according to claim 9. The printer description file serves for the additive manufacturing of the wedge element and / or the shell element as parts of the system for connecting textile-reinforced structural modules along at least one connecting edge according to any one of claims 1 to 6. Manufacturing is carried out in an additive process, e.g., in a 3D printer or in a computer connected to a 3D printer. In the case that the wedge element and / or the shell element is designed as a composite material with its own textile reinforcement, the process includes not only the application of a matrix material in the 3D printer but also the placement of the textile reinforcement, e.g., by inserting rovings. Production in a 3D printer also enables the creation of freeform shapes corresponding to the contours of the edge grooves of the structural modules to be connected.

[0025] A particular advantage of the present invention, especially the possibilities for connecting the concrete structural modules using edge connections, lies in the fact that the connection can be designed to be separable. This opens up entirely new possibilities in the construction industry. Until now, the deconstruction of buildings, especially those made of concrete, has always involved irreversible destruction, producing recycled material suitable at best for inferior uses. With the present invention, buildings can not only be repaired or modified, but also completely or partially dismantled and re-erected elsewhere. The concrete structural modules are therefore not subject to recycling or even disposal as waste, but are available for complete reuse. The energy used in the production of the concrete is not lost, which significantly improves energy efficiency in the construction industry and reduces CO₂ emissions.

[0026] The invention is explained in more detail below with reference to the description of exemplary embodiments and their illustration in the accompanying drawings. The drawings show: Fig. 1 : a schematic perspective representation of an embodiment of an edge connection in stretched and curved form; Fig. 2 : a schematic sectional view of an embodiment of an edge connection with attached yarn loops; Fig. 3 : a schematic perspective representation of an embodiment of an edge connection comprising a flat wedge element and two flat shells; Fig. 4 : a schematic view of a concrete structure module with edge groove and an edge connection with attached yarn loops, inserted into an edge groove; Fig. 5 : a schematic view of an embodiment of an edge connection and the spreading process; Fig. 6: a schematic cutaway view of an embodiment of an edge connection, showing the spreading process; Fig. 7 : a schematic perspective cutaway representation of an edge connection, showing the spreading process; Fig. 8 : a schematic cutaway view of four embodiments of an edge connection; Fig. 9 : a schematic cutaway view of three further embodiments of an edge connection; Fig. 10 : a schematic cutaway view of another embodiment of an edge connection, comprising a rolling track; Fig. 11 : a schematic cutaway view of another embodiment of an edge connection; Fig. 12 : a schematic view of three further embodiments of an edge connection in longitudinal section; Fig. 13 : a schematic perspective representation of three uses of an embodiment of an edge connection; Fig. 14: a schematic perspective representation of another use of an embodiment of an edge connection; Fig. 15 : a schematic perspective detail view of a use of an embodiment of an edge connection; Fig. 16 : a schematic cutaway view of three uses of an embodiment of an edge connection; Fig. 17 : a schematic perspective view of a use of an embodiment of an edge connection; Fig. 18 : a schematic perspective view of another use of an embodiment of an edge connection; Fig. 19 : a schematic perspective representation of a use of an embodiment of an edge connection for connecting more than two concrete structure modules; Fig. 20 : a schematic sectional view of an embodiment of an edge connection for connecting more than two concrete structure modules; Fig. 21: a schematic sectional view of another embodiment of an edge connection without overlapping interlocking yarn loops; Fig. 22 : a schematic sectional view of another embodiment of an edge connection with separately inserted yarn loops; Fig. 23 : a schematic sectional view of an embodiment of an assembly aid; Fig. 24 : a schematic sectional view of a use of the assembly aid; Fig. 25 : a schematic perspective representation of another embodiment of an assembly aid and Fig. 26 : a schematic perspective representation of an embodiment of a concrete component according to the invention.

[0027] Fig. 1Figure 1 shows a schematic perspective view of an embodiment of a system for connecting textile-reinforced structural modules, an edge connection 400, in both a straight and a curved configuration. The edge connection 400 can be used with both flat, planar (view a) and curved, non-planar concrete structural modules 72 (view b). The edge connection 400 comprises a flat wedge element 410 and two flat shells 420, which are longitudinally displaceable relative to each other, with wedges 412 engaging in the wedge groove 422 of the shell elements, the flat shells 420. The precise mode of operation is shown and explained in the following figures.

[0028] The edge connection 400 can be used as a unidirectional edge connection 400, as in Fig. 1shown, or multidirectional edge connection 403, see Figures 50 and 51. In the case of the unidirectional edge connection 400, the reinforcement of both connected concrete parts and the edge connection 400 itself forms a line or a tangent at the point of connection in the case of non-planar concrete components. This also means that the unidirectional edge connection 400 is only suitable for connecting two structural modules, in particular concrete structural modules. The unidirectional edge connection 400, in turn, comprises two possible applications: the In-Plane and the Out-of-Plane Connection.

[0029] The in-plane connection encompasses solutions where the edge connection 400 runs in the plane of concrete slabs or parallel to the concrete slabs, regardless of their topography. The horizontal orientation, the in-plane connection, is predominantly used in shell and slab structures, horizontally developed structures (see...). Fig. 13a, b and c). Beam elements, as in the Figures 14-16 The solutions shown also belong to the in-plane solution, such as sandwich solutions.

[0030] To expand functionality, there is the Out-of-Plane Solutions , where the edge connection 400 is arranged perpendicular to the plane of the concrete structures. In the case of the non-horizontal edge connection 400, the Out-of-Plane Connection , Concrete structures must be in the form of a grid or a cellular structure (see below). Figures 17-19 ).

[0031] Height and width of the wall elements or structural modules 72 with vertically oriented edge connection 400 or central connection 403 (see Figures 19 and 20 ) can be different. Thus, the non-horizontal edge connection 400 or central connection 403 can be used to connect massive walls in a building or relatively small components of a complex grid structure as structural modules 72, as in Fig. 19shown, used.

[0032] Fig. 2 Figure 1 shows a schematic sectional view of an embodiment of an edge connection 400 with attached yarn loops 4, which originate from two concrete structure modules to be joined and overlap and interlock in the connection area. The edge connection 400 is inserted into the overlapping yarn loops 4. As soon as the two flat shells 420 move apart due to the wedge action when the flat wedge element 410 is driven in, the two yarn loops 4 are also pulled against each other (compare the indicated arrow direction) and, due to the interlocking, the concrete structure modules (not specified here) are drawn together.

[0033] Fig. 3Figure 1 shows a schematic perspective view of an embodiment of an edge connection 400, comprising a flat wedge element 410, shown in the center, having wedges 412, and two flat shells 420 arranged laterally to the flat wedge element 410. Each flat shell 420 has a wedge groove 422 into which the flat wedge element 410 can be inserted before assembly. The base of the wedge groove 422 also has wedge-shaped elements which, in conjunction with the wedges 412, cause a spreading movement perpendicular to the longitudinal extent of the flat wedge element 410 and the flat shells 420 during relative longitudinal movement between the flat wedge element 410 and the flat shells 420, when the flat wedge element 410 is driven between the flat shells 420, but preferably when it is withdrawn from the flat shells 420. To pull it out, a sufficient tensile force acting on the flat wedge element 410 is required.

[0034] Fig. 4Figure 1 shows three schematic views, in perspective and in section, of a concrete structure module 72 with edge groove 74 and an edge connection 400 with attached yarn loops 4, inserted into the edge grooves 74 of the two concrete structure modules 72. The edge grooves 74 make it possible to make the connection point and the edge connection 400 inserted there invisible.

[0035] Fig. 5Figure 1 shows a schematic view of an embodiment of an edge connection 400 and the spreading process. In view a), the flat wedge element 410 and the flat shells 420 are positioned close together. In view b), the relative movement between the flat wedge element 410 and the flat shells 420 begins when the flat wedge element 410 is extended (see downward arrow). This initiates the spreading of the flat shells 420 (see lateral arrow). In view c), the spreading is complete, while view d) indicates the optional insertion of a fixing element 425, which prevents undesired loosening of the wedge, for example, due to vibrations. Even if the flat wedge element 410 is only partially extended, the fixing element 425 prevents it from springing back.

[0036] The Figures 6 and 7Each figure shows a schematic cutaway view, one cross-section and one longitudinal section, of an embodiment of an edge connection 400, illustrating the spreading process as described in Fig. 5 shown again enlarged, reference is made to these explanations. Fig. 5 referred

[0037] Fig. 8 Figure 1 shows a schematic sectioned view of an edge connection 400, where the flat shells 420 have different cross-sections. By selecting a suitable cross-section, an optimized adaptation to the cross-section of an edge groove 74 or to the arrangement or design of the yarn loops 4 can be achieved.

[0038] Fig. 9Figure 1 shows a schematic sectional view of three further embodiments of an edge connection 400. The embodiment according to view a) represents a standard form in which all components are made of the same material. In the embodiment according to view b), all components consist of a composite material that has been layered on top of each other. The embodiment according to view c) has its own wedge reinforcement 414 of the flat wedge element 410 for higher tensile strength and thus greater wedge forces.

[0039] Fig. 10Figure 1 shows a schematic cutaway view of another embodiment of an edge connection 400, comprising a rolling track 430 that facilitates the insertion or retraction of the flat wedge element 410 between the flat shells 420. Instead of sliding friction on the flanks of the wedges 412 with the corresponding contour of the wedge groove of the flat shell 420, rolling friction occurs due to the use of the rolling track 430. View a) shows the situation before the start, view b) at the end of the spreading process. An alternative embodiment of the rolling track 430 is not in sections, as shown, but continuous.

[0040] Fig. 11Figure 1 shows a schematic cutaway view of another embodiment of an edge connection 400, which has flat shells 420 whose outer surface is provided with a retaining layer 421. This layer is slightly deformable, so that the yarn loops lying there sink into the retaining layer 421 under mechanical stress. This secures the yarn loops against slipping in the longitudinal direction of the edge connection 400, so that no further counterforce has to be applied when the flat wedge element 410 is pulled or pushed against the flat shells 420. In addition, transverse forces acting on the flat shells 420 via the yarn loops are better distributed over the outer surface of the flat shells 420.

[0041] Fig. 12Figure 1 shows a schematic longitudinal section view of three further embodiments of an edge connection 400, with different wedge shapes 412 being used in views a) to d). These wedges differ in the force that can be applied during operation, with the elongated wedges 412 in views b) and d) being suitable for achieving a greater spreading force. In contrast, the wedges 412 in views a) and c) have flattened areas on which, after completion of the spreading process, the interacting parts, flat wedge element 410 and flat shells 420, can rest without the need to apply further longitudinal forces. The long cone in the embodiment according to view b) also allows for more precise control of the spreading force.In the embodiment according to view c), the outer contour is designed as a spline, so that at the beginning of the extension process only static friction has to be overcome and the spreading force only comes into play later, when the wedge 412 is already in sliding motion. In the embodiment according to view d), a step-like contour also allows for a stepwise, discrete and thus specifically countable adjustment and application of the spreading force of the flat shells 420.

[0042] Fig. 13 Figure 1 shows a schematic perspective representation of three uses of an embodiment of an edge connection 400, wherein different embodiments of concrete structure modules 72 are connected, view a) shows two double-arched concrete structure modules 72 which are connected at a connecting edge 76 by means of an edge connection 400.

[0043] View b) shows two concrete structure modules 72 in a sandwich construction, each shell of the sandwich construction having its own edge connection 400. The edge connection 400 is also suitable for connecting planar concrete structure modules 72, as shown in view c).

[0044] Fig. 14 Figure 1 shows a schematic perspective representation of another use of an embodiment of an edge connection 400, wherein it is used to connect two beams 80. An edge connection 400 is provided on the tension side at the bottom and on the compression side at the top, assuming a normal load.

[0045] Fig. 15 shows a schematic perspective detail view of the use of an embodiment of an edge connection 400 according to Fig. 14The edge connection 400 is additionally shown with the yarns 2 forming yarn loops 4. The edge connection 400 runs through the interlocking yarn loops 4. The yarn loops 4 of the second support 80 to be joined, which also engage with the same edge connection 400, must be considered simultaneously, since the situation shown would no longer allow the yarn loops 4 of the other support 80 to engage. The yarn loops 4 of the elements to be joined must first be engaged before the edge connection 400 can be inserted.

[0046] Fig. 16Figure 1 shows a schematic sectional view of three further uses of an embodiment of an edge connection 400, where different elements are connected to each other in views a) to c). View a) corresponds to the use shown in Figures 45 and 46, while views b) with a T-beam and c) with a free-form element show other embodiments of concrete structure modules 72.

[0047] The Figures 17 and 18 Each shows a schematic perspective view of a further use of an embodiment of an edge connection 400. Fig. 17 Figure 400 shows an embodiment of an edge connection which is also suitable for connecting beams or different load-bearing or non-load-bearing wall elements. The connection is made by means of vertical connection points, as shown in Figure 400. Fig. 17This shows that, for example, different grid or lattice structures can be assembled from concrete structure modules or concrete elements, as shown in the Figures 18 and 19 shown.

[0048] The previously described unidirectional edge connection 400 serves to connect two concrete structure modules 72 (see e.g. Fig. 13 It is not suitable for combining more than two concrete elements to create a type of cellular structure.

[0049] To ensure the functionality of the edge connection 400, as described in the Figures 13 to 18 As shown, to expand, a modification is therefore planned in order to include one in the Figures 19 and 20 to provide the multidirectional edge connection shown. This is achieved by a central connection 403, as shown in Fig. 20 This is shown in detail. It is suitable for forming network structures with variable angles and connecting edges, as shown in Fig. 20shown with a schematic perspective representation of an embodiment of a central connection 403 for connecting more than two concrete structure modules 72.

[0050] In this arrangement, several webs of adjacent concrete structure modules 72 intersect at a common multidirectional edge connection, the central connection 403. The cylindrical structure of the multiaxial central connection 403 allows for radial expansion instead of lateral expansion as with a unidirectional edge connection 400. Therefore, it is possible to provide expansion in any direction of the plane intersected by the multidirectional central connection 403.

[0051] The central connection 403 has the same key components as the unidirectional edge connection 400. The multidirectional central connection 403 also comprises a central part, here designed as a cylindrical wedge element 413, and several side parts, here designed as cylindrical shells 423. The wedge element is also designed as a cylindrical wedge element 413 and has a circular cross-section, just as the shell elements are designed as a section of a circular ring, forming a cylindrical shell 423. The cylindrical wedge element 413 can have different contours on its surface, as shown in the illustration. Fig. 12 and thus exhibit different functionalities.

[0052] The multidirectional central connection 403 is similar in function to the edge connection 400, which is also designed to extend across the textile yarn loops 4 (see, among others, the following). Fig. 15) expands and causes tension between the concrete structure modules 72 or the beams 80. The various yarn loops 4, each formed from a single yarn 2, are no longer oval but circular. This is due to the central connection 403 with a circular cross-section.

[0053] However, an important difference between the central connection 403 and the edge connection 400 lies in the introduction of an elastic circular ring holder 424. In a multi-directional central connection 403, the elastic circular ring holder 424 holds the associated components together before the central connection 403 is inserted into the connecting channel formed by the interlocking yarn loops 4. The circular ring holder 424 can theoretically also be used for the unidirectional edge connector to hold its components together before insertion into the edge grooves.

[0054] Fig. 21 Figure 1 shows a schematic sectional view of another embodiment of an edge connection 400, which advantageously eliminates the need for interlocking overlapping of the yarn loops 4 prior to assembly. This simplifies assembly, since in this embodiment the relatively unstable yarn loops 4 do not first need to be overlapped to create an opening for insertion.

[0055] Instead, the yarn loops 4 are in relation to the embodiment according to the Figure 1 , 4 and 22The yarn loops are rotated and inserted into a loop bed 440. This loop bed has a projection 442 into which the flat shell 420, which is particularly sharp-edged and secured against unwanted slippage from the loop bed 440, engages. If the flat shells 420 are spread apart as a result of the interaction between the flat wedge element 410 and the flat shell 420, the desired tensile force is exerted on the yarn 2 via the loop bed 440 belonging to each of the yarn loops 4.

[0056] Fig. 22Figure 1 shows a schematic sectional view of another embodiment of an edge connection 400 with separate yarn loops 4, which are not connected to a textile reinforcement but are embedded in the curable material of the concrete structure module 72. A loop holder 5, which simultaneously gathers the two ends of the yarn loop 4, provides improved hold. The loop holder 5 is preferably designed as an anchor that can be anchored in the curable material.

[0057] Fig. 23 Figure 1 shows a schematic sectional view of an embodiment of an assembly aid 500, which is inserted into the edge groove 74 of the first concrete structure module 72 and facilitates the placement of the second concrete structure module 72. The assembly aid 500 has a hook profile 510 that can compensate for surface inaccuracies in the edge groove and prevent the assembly aid 500 from slipping back unintentionally. Assembly and use are described in Figure 1. Fig. 24 depicted. Fig. 23 This also shows that the edge connection 400 can be used inside the assembly aid 500 without having to remove the assembly aid 500. The yarn loops are not shown. Fig. 25 Figure 500 shows a schematic perspective representation of an embodiment of the assembly aid 500.

[0058] Fig. 26 Figure 1 shows a schematic perspective view of an embodiment of a concrete component 70 according to the invention. In the illustrated embodiment, this component is depicted as a sandwich element, such that the concrete structure modules 72, which form the two shells of the sandwich element, are each connected by a separate edge connection 400. The area of ​​the reinforcement 10 shown without concrete cover illustrates the interlocking of the yarn loops 4, which each belong to the reinforcement 10 of both concrete structure modules 72.

[0059] Furthermore, a shear reinforcement 16, a box-shaped reinforcement made of a textile grid-like structure, is shown, which engages both in the two shells of the sandwich element and also represents the connection and spacing structure between the two shells.

[0060] Furthermore, a lattice-shaped reinforcement 18 is provided, which enables the introduction and transfer of high forces in the intended direction. The lattice-shaped reinforcement 18 can also transfer forces across several concrete structure modules 72. For this purpose, a reinforcement strand 19 is inserted into the interior of the lattice-shaped reinforcement 18. A conduit can also be routed through it instead of the reinforcement strand 19. Reference symbol list

[0061] 2 Yarn 4 Yarn loop 5 Loop holder 16 Shear reinforcement 18 Tubular lattice reinforcement 19 Reinforcement strand 70 Concrete component 72 (Concrete) structural module 74 Edge groove 76 Connecting edge 80 Beam 400 Connecting system, edge connection 403 Connecting system, central connection 410 Wedge element, flat wedge element 412 Wedge 413 Wedge element, cylindrical wedge element 414 Wedge reinforcement 420 Shell element, flat shell 421 Retaining layer 422 Wedge groove 423 Shell element, cylindrical shell 424 Circular ring holder 425 Fixing device 430 Rolling track 440 Loop bed 500 Assembly aid 510 Hook profile

Claims

1. System for connecting textile-reinforced structural modules (72) along at least one connecting edge (76), wherein each structural module (72) has at least one edge groove (74) having yarn loops (4) circumferentially at least along the connecting edge (76), wherein the system (400, 403) comprises a wedge element (410, 413) having wedges (412) on at least one outer surface, and at least one shell element (420, 423) having surfaces corresponding to the wedges (412), wherein the wedge element (410, 413) and the at least one shell element (420, 423) are designed for insertion into the at least two edge grooves (74) with the overlapping yarn loops (4) such that the wedges (412) and the corresponding surfaces face each other, and wherein the wedge element (410, 413) is further designed for partial extension or insertion relative to to which at least one shell element (420, 413) is provided,so that, by means of a wedge action between the wedges (412) and the corresponding surfaces, the wedge element (410, 413) and the at least one shell element (420, 423) are spread apart from each other and the overlapping yarn loops (4) encircling the system (400, 403) are simultaneously drawn towards each other, , characterized by the fact that the yarn loops (4) are part of the textile reinforcement of the structural modules (72) and are integrally connected to it, in that a yarn (2) first passes through the area of ​​the textile reinforcement inside the structural module, then exits the structural module (72) in the area of ​​the edge grooves and forms a loop, the yarn loop (4), wherein the wedge element (410, 413) and the at least one shell element (420, 423) continuously follow the course of the connecting edge (76) over its entire length.

2. System according to claim 1, which is designed as an edge connection (400) and which comprises a wedge element designed as a flat wedge element (410) with wedges (412) arranged on the two flat sides and further comprises two shell elements, designed as flat shells (420), each having a wedge groove (422) on the base of which the corresponding surfaces are arranged.

3. System according to claim 1, which is designed as a central connection (403) and which comprises a wedge element designed as a cylindrical wedge element (413) with wedges (412) arranged in a ring-shaped circumferential manner and further comprises the shell elements having the corresponding surfaces, designed as a cylindrical shell (423).

4. System according to one of claims 1 to 3, wherein the yarn loops (4) are aligned and interlock in such a way that they form an opening for inserting the edge connection (400) or the central connection (403) into the interlocking yarn loops (4), wherein the yarn loops (4) can be spread by means of the inserted shell elements (420, 423) in conjunction with the at least one wedge element (410, 413), or according to a second embodiment, the yarn loops (4) are aligned horizontally to the longitudinal direction of the edge groove (74) and the yarn loops (4) of each of the connecting edges (76) are embedded in a loop bed (440), wherein the loop beds (440) can be spread by means of the form-fittingly engaging flat shells (420) in conjunction with the flat wedge element (410).

5. System according to one of the preceding claims, wherein the contact surfaces between the shell element (420) and the wedge element (410) have rolling tracks (430).

6. System according to one of the preceding claims, wherein an assembly aid (500) is provided which engages in at least one section of the edge groove (74) of the structural modules (72) to be joined and in the interior of which the edge connection (400) can be guided, so that the assembly aid (500) remains in the joined structural modules (72).

7. Method for joining textile-reinforced structural modules (72) along at least one joining edge, wherein each structural module has at least one edge groove (74) having yarn loops (4) at least partially circumferentially along the joining edge (76), characterized by the fact thatthe structural modules (72) are arranged with connecting edges (76) facing each other, into which at least two opposing edge grooves (74) a system for connecting (400, 403) according to one of claims 1 to 6 is inserted, wherein the wedge element (410, 413) is subsequently extended so far that the shell elements (420, 423) with the overlapping yarn loops (4) are spread apart from each other by wedging and the structural modules (72) are drawn together.

8. Method according to claim 7, wherein a fixing means (425) is introduced to secure the connection between the wedge element (410, 413) and the shell elements (420, 423), wherein the fixing means (425) prevents an undesired loosening of the wedging.

9. Printer description file for the additive manufacturing of a wedge element (410, 413) and / or a shell element (420, 423) as parts of the system for connecting textile-reinforced structural modules (72) along at least one connecting edge (76) according to one of claims 1 to 6, wherein the printer description file is executed in a 3D printer or in a computer connected to a 3D printer.

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