FACADE PANEL AND BUILDING FACADE WITH A FACADE PANEL

Description

AREA OF INVENTION

[0001] The present invention relates to a facade panel with a grid-shaped reinforcement embedded in concrete, preferably cast in concrete. The invention further relates to a building facade with at least one such facade panel and also comprises a load-bearing exterior wall, an exterior facade extending at a distance therefrom and constructed from a plurality of facade panels, and an anchoring system for attaching the facade panels to the exterior wall. STATE OF THE ART

[0002] The exterior wall of a building is typically a component constructed on-site, for example, an exterior wall made using cast-in-place or ready-mix concrete. Alternatively, it can also be a component assembled from prefabricated wall elements. These can also be made of concrete (precast concrete elements), but are fundamentally also made of other materials. A brick wall construction is also conceivable.

[0003] Often, such building exterior walls are easy to manufacture, stable and very load-bearing, but are usually not very visually appealing, even dreary.

[0004] Exterior facades, however, represent the calling card of a building. Accordingly, both architects and building owners strive to design visually appealing exterior facades. Furthermore, exterior facades also fulfill various structural and building physics functions, such as thermal insulation and shading. In addition, exterior facades often serve to generate electricity using solar panels.

[0005] In order to fulfill all these tasks, it is common to hang an external facade (often also referred to as a ventilated facade) in front of the load-bearing outer wall of the building, which is made up of a plurality of facade panels that can be individually designed (with regard to their shape, surface, materials) and may also serve technical purposes (for cooling the building, for example as green facades with irrigation systems, etc.).

[0006] Since the exterior facade must be assembled on site, it is important that attaching it to the building's exterior wall is as simple as possible. Furthermore, maximum flexibility should be allowed regarding the arrangement and alignment of the facade panels.

[0007] For example, it may be desirable to create a large, uniformly flat surface as an exterior facade by arranging the facade panels, while in other cases it may be necessary to arrange certain facade panels at a specific angle to each other or to the load-bearing exterior wall of the building.

[0008] In the vast majority of applications, however, it is essential that the outer facade forms a flat, vertically running surface.

[0009] In practice, the use of concrete facade panels has proven particularly advantageous. These offer numerous design possibilities, can be manufactured economically to a high standard, are robust, and exhibit very good mechanical / static properties for most applications.

[0010] However, one challenge during installation is the high weight of concrete facade panels, which also requires reliable anchoring of each panel to the building's outer wall.

[0011] Furthermore, the design of a uniformly vertical exterior facade requires precise alignment of the facade panels with each other; otherwise, the exterior facade will appear uneven.

[0012] From the prior art, for example, a conventional mounting bracket for heavy facade panels made of, for example, concrete, granite or marble on buildings has become known from KR 10-2007-0037737, which is in the Figure 1 and 2The diagram shows a first support component attached to the back of a first facade panel and screwed to it. This first support component is further screwed to a second support component. The second support component is, in turn, screwed to a vertical frame, which is continuously attached vertically along the building's exterior wall. A second facade panel, attached above the first, is secured to an angled extension of the first support component on the underlying first facade panel by means of a longitudinal groove that extends lengthwise along the lower narrow edge of the second facade panel and is positioned approximately at the midpoint of the panel's thickness.

[0013] As explained in KR 10-2007-0037737 itself, a disadvantage of this conventional mounting system is the complexity of attaching the exterior material to the building wall. Adjusting the distances between the front of the facade panels and the vertical frame on the back of the panels, which is attached to the building wall, is extremely difficult. Fine-tuning the position of the supporting components requires multiple adjustments to compensate for unevenness in the exterior facade. Similarly, adjusting the distances between adjacent upper and lower facade panels is very cumbersome. Because the facade panels sag or deflect from the top, they are subjected to greater stress, particularly on their lower narrow side, where they rest on a lower supporting component via the longitudinal groove.However, deflections of the facade panels and the sagging of the heavy upper facade panels onto the facade panels mounted below lead to cracks and damage to the outer material, which is why this conventional mounting bracket is not suitable for the simplest, quickest and safest possible installation of facade panels on a building's exterior facade.

[0014] From CH 681 316 A5, a panel mounting for conventional facade panels is further disclosed, comprising a support component projecting from a building's exterior wall and a slidably mounted support arm within it, which is screwed to the back of the facade panels. While the panel mounting allows for adjustment of the distance between the facade panels and the building's exterior wall, it does not permit relative angular alignment of the support component and the slidably mounted support arm with respect to each other. Consequently, this panel mounting is disadvantageous because it cannot compensate for unevenness between adjacent facade panels or for the spacing between them.

[0015] DE 23 05 394 A1 relates to a facade panel that is attached to a building wall by two different connecting devices. The first, upper connecting device allows the facade panel to be hinged in such a way that it can be rotated or folded relative to the building wall about an axis of rotation parallel to the wall. The second, lower connecting device, however, in combination with the upper connecting device, rigidly fixes the facade panel in its mounting position relative to the building facade. Relative angular adjustment of the rigidly fixed facade panel is not possible, and therefore, even with this type of panel mounting, unevenness in the exterior facade and gaps between adjacent facade panels cannot be compensated for.

[0016] German patent DE 36 21 201 A1 discloses an anchor for fastening unspecified panels to walls or ceilings, comprising a base plate, a support plate welded to the base plate, and a plate-shaped fastening lug rotatably connected to the support plate. DE 36 21 201 A1 makes no mention of the anchor being designed for facade panels. The wall or ceiling panels can be attached to the anchor by means of fastening pins inserted transversely into the plate-shaped fastening lug, which are then cemented into the panels. After adjusting the installation position between the support plate and the fastening lug, it is necessary to fix their relative position by means of a weld.This panel mounting system also fails to compensate for unevenness between adjacent facade panels on an exterior facade, nor for gaps between adjacent facade panels. Furthermore, creating a welded connection to fix the mounting position of the anchor's movable components is complex, which is why this mounting system is also unsuitable for the simplest, quickest, and safest possible installation of facade panels on a building's exterior.

[0017] Furthermore, WO 2014 / 106625 A1 discloses a precast concrete element with textile reinforcement and fastening elements that are directly connected to the textile reinforcement. The fastening elements can be angled and penetrate the flat side of a precast concrete element, which can be used, for example, as a facade panel. Thus, plate-shaped connecting sections project essentially at right angles from the base body of such a precast concrete element on its flat side, serving to mount the facade panel to a supporting structure.

[0018] A disadvantage of such a facade panel according to WO 2014 / 106625 A1 is that the fasteners are either bonded to the textile reinforcement with an adhesive, or each fastener has a head that is inserted into the textile reinforcement. The head of such a fastener can, for example, be cylindrical with a circumferential groove, and the head is inserted between the reinforcing fibers of the textile reinforcement in such a way that they run along opposite sides of the head in the circumferential groove. In the case of textile reinforcement with two layers, it is also conceivable to insert a section of the angled fasteners between each of the two reinforcement layers.Although the fasteners, which are connected to the reinforcement in this way by gluing or inserting them into the reinforcing fibers, are cast into the concrete, it is still possible that the fasteners may loosen under sufficiently high loads, especially during vibrations, during the installation of such a facade panel and consequently become insufficiently connected to the reinforcing material. In such a case, secure fastening of these facade panels to a supporting structure is no longer guaranteed.

[0019] Furthermore, due to manufacturing inaccuracies, it cannot be ruled out that, in individual facade panels, the plate-shaped connecting sections, which are cast in place in concrete, protrude from the respective base body of the facade panel at different positions and / or angles relative to each other. However, fine-tuning the position, especially the angle, of the plate-shaped connecting sections in relation to the facade panel is not possible. Therefore, the facade panel known from WO 2014 / 106625 A1 is not suitable for the rapid, safe, and simple construction of an exterior facade with a high degree of prefabrication. TASK OF INVENTION

[0020] Therefore, one of the objectives of the invention is to provide a facade panel that is particularly easy, quick and safe to install and that has a lower weight and a lower component thickness than comparable conventional concrete facade panels.

[0021] One of the objectives of the invention is to propose a building facade in which it can be ensured that the facade panels forming the outer facade create a uniformly flat surface.

[0022] Another objective of the invention is to ensure that the distances between the individual facade panels of the outer facade are always the same.

[0023] Furthermore, the building facade according to the invention should be as easy to assemble as possible, in particular enabling quick and safe assembly on the construction site and penetrating any existing insulation layer at as few points as possible.

[0024] Furthermore, a building facade according to the invention should have the highest possible degree of prefabrication.

[0025] Ultimately, the building facade according to the invention should also allow for an angular arrangement of the facade panels in certain applications, either in relation to each other or in relation to the load-bearing outer wall of the building. PRESENTATION OF THE INVENTION

[0026] According to the invention, a facade panel is provided with a grid-shaped reinforcement embedded in concrete, preferably cast in concrete, for example, steel, carbon, or glass fiber reinforcement, wherein at least one connecting element is provided attached to the reinforcement, which projects out of the concrete with a projection and which is preferably cast with the concrete, and wherein the attachment of the at least one connecting element to the reinforcement is effected by plate-shaped clamping elements, wherein a first clamping element is arranged on one side of the reinforcement and a second clamping element is arranged on a side of the reinforcement opposite the first side, and wherein the at least one connecting element extends in a direction transverse, preferably normal, to the plane of the reinforcement, wherein the two clamping elements have a shape which is larger than a mesh opening of the grid-shaped reinforcement.

[0027] Advantageously, the prefabricated facade panels can therefore be connected to the anchoring system immediately without further processing.

[0028] In a preferred embodiment of the facade panel according to the invention, the grid-shaped reinforcement can be a reinforcement made of carbon fibers.

[0029] According to the invention, a facade panel is designed such that the at least one connecting means is a screw which is guided through an opening of the first clamping element, a mesh opening of the grid-shaped reinforcement and an opening of the second clamping element and by means of which the two clamping elements are screwed to the reinforcement.

[0030] In a preferred embodiment of the invention, the clamping elements are clamped against the reinforcement by means of a screw / nut combination. The screw(s) used simultaneously serve as connection elements for the anchoring system. The lengths of the screws are selected such that they protrude from the cast concrete.

[0031] In a further preferred embodiment of a facade panel according to the invention, the two clamping elements can be arranged in a fixed position on both sides of the reinforcement such that they either span at least one mesh opening of the reinforcement or do not completely span any mesh opening, wherein the clamping of the two clamping elements is asymmetrical over at least one node of the reinforcement. In the latter case, the two plate-shaped clamping elements can be arranged such that they only cover part of a mesh opening.

[0032] Within the scope of the invention, the two clamping elements of a facade panel can each be the same size.

[0033] In an alternative embodiment, in a facade panel according to the invention, the first clamping element can be longer than the second clamping element, wherein the first clamping element preferably has one or more openings and a shape that spans several mesh openings of the grid-shaped reinforcement.

[0034] In a further embodiment of the invention, both the reinforcement and the connecting means can be cast into the concrete in a facade panel according to the invention.

[0035] The problem mentioned at the outset according to the invention is also solved by a building facade with at least one facade panel according to the invention.

[0036] In a building facade according to the invention, which, in addition to the at least one or more facade panels according to the invention, further comprises a load-bearing building exterior wall, an exterior facade extending at a distance therefrom and constructed from a number of facade panels, and an anchoring system for attaching at least one of the facade panels to the building exterior wall, the anchoring system comprises at least a first and a second support component, wherein the first support component is connected on one side to a facade panel and on the other side to the second support component, and the second support component is also connected to the building exterior wall, wherein the connection between the first and second support component enables a relative angular alignment and fixation of the two support components to each other.

[0037] The supporting components are preferably made of stainless steel, or possibly of alloy steel.

[0038] In a preferred embodiment of the invention, the connection between the first and second support components is a screw connection. This allows both the angular alignment and the fixing of the two support components relative to each other to be carried out quickly and securely on site, at the construction site.

[0039] According to the invention, it can further be provided that the first support component comprises an anchoring section via which the first support component is connected to the at least one facade panel, and the second support component comprises an anchoring section via which the second support component is connected to the building's exterior wall. The two support components can therefore be securely connected to the at least one facade panel and the load-bearing exterior wall of the building, respectively, via the anchoring sections. The shape and fastening means of the anchoring sections can be adapted to specific conditions and, as will be shown, can also fulfill additional functions.

[0040] According to the invention, it can further be provided that the first support component comprises a connecting section projecting from its anchoring section towards the outer wall of the building, and the second support component comprises a connecting section projecting from its anchoring section towards the outer facade, and that the two connecting sections each have an overlap area within which the connection of the two support components takes place.

[0041] According to a further preferred embodiment, at least one connecting element can be provided in the overlap area of ​​the connecting section of the first support component and / or the connecting section of the second support component, in particular at least one opening can be provided through which the two connecting sections are connected to each other, preferably screwed together, the openings being able to have different distances from the outer facade. Connecting elements are understood to be prefabricated elements that are part of the two connecting sections. These can either enable a connection on their own, or, as in the case of openings, for example, with the use of a further element such as a screw.

[0042] The different spacing of the connecting elements allows the anchoring system to be adjusted so that the distance between a facade panel and the load-bearing outer wall of the building can be set within limits specified by the spacing.

[0043] In a preferred embodiment of the invention, the support components are steel sheets, in particular bent steel sheets, wherein the anchoring sections and connecting sections each form a leg. Preferably, the anchoring section and connecting section of each support component are therefore plate-shaped, i.e., their thickness is small compared to their length and width.

[0044] The arrangement of the supporting components on the building facade is therefore preferably such that, in a viewing direction parallel to the outer facade and normal to a support plane of the building, the anchoring section and the connecting section of each supporting component run at an angle, preferably at right angles, to each other, so that the section modulus for the given load case of the anchoring and connecting sections can be utilized accordingly.

[0045] Specifically, in this case, an anchoring section runs essentially parallel to a facade panel or parallel to the load-bearing exterior wall of the building. A connecting section runs essentially perpendicular to the facade panel or exterior wall of the building. The preferably intended connection by means of screws is also parallel to a facade panel or exterior wall of the building and parallel to the building's foundation plane in one direction.

[0046] An exterior facade is typically constructed from numerous facade panels, each panel being attached to the building's exterior wall using the described anchoring system. To reduce the weight of the anchoring system, at least one connecting section, preferably both connecting sections of the anchoring system, can be designed to be triangular when viewed in a direction parallel to the exterior facade and essentially parallel to the building's foundation plane. The overlapping area of ​​each connecting section is formed by a corner section. This ensures that the connecting sections are only the size they actually require to fulfill their technical purpose, thus saving unnecessary weight.

[0047] To facilitate the alignment of the facade panels to each other, in a further embodiment of the invention at least one alignment lug can be provided which projects beyond a boundary edge of the inner surface of a facade panel and engages in a receptacle that is arranged on an adjacent facade panel.

[0048] According to the invention, one alignment lug per facade panel or several alignment lugs per facade panel can be provided, which project beyond different boundary edges of a facade panel and therefore enable flush alignment with one or more adjacent facade panels.

[0049] According to a particularly preferred embodiment of the invention, the at least one alignment lug can be formed by a section of the anchoring section of the first support component. In other words, the dimensioning or attachment of an anchoring section of the first support component to a facade panel can be such that at least part of the anchoring section projects beyond a boundary edge of the facade panel. This allows the alignment lug to engage in a receptacle of the adjacent facade panel, thus enabling precise alignment.

[0050] Preferably, the receptacle tapers in the direction of engagement, so that on the one hand the insertion of the alignment lug during assembly is made easier, and on the other hand the alignment lug is also fixed in the receptacle to a certain extent if the taper is dimensioned accordingly.

[0051] As a particularly easy-to-implement embodiment of a receptacle, it can be provided that it is formed by two spaced-apart strips, preferably sheet metal strips.

[0052] Preferably, the receptacle is arranged on the inner surface of a facade panel and extends the width of a receptacle from the inner surface towards the outer wall of the building, the width being adjustable by selecting a spacer element in which the strips are screwed to a facade panel with the spacer element in between.

[0053] While a wide variety of facade panels can generally be used to construct the exterior facade, according to a further preferred embodiment of the invention, an exterior facade is provided in which at least one facade panel, preferably all facade panels, is / are made of a composite material comprising concrete and a grid-like reinforcement of carbon fibers. Such a composite material is also called carbon concrete.

[0054] This composite material, or rather the reinforcement, exhibits a significantly higher tensile strength (up to seven times that of conventional reinforced concrete) and is non-corrosive. This means that the components of the facade panels according to the invention can be built correspondingly thinner than conventional concrete facade panels, thus saving resources. Compared to conventional concrete facade panels, the component thickness can be reduced by more than 50%. Furthermore, a reduction in component thickness also results in a lower weight for each facade panel.

[0055] This circumstance, in combination with the building facade according to the invention, ensures that in particular the angular alignment and fixing of the first and second supporting components to each other is not impaired or made impossible by unnecessarily heavy facade panels.

[0056] It is particularly important to take into account that the installation of the facade panels takes place on the construction site and therefore may be under adverse conditions, but in any case also at great heights.

[0057] The advantages of a building facade according to the invention are therefore further enhanced by the use of facade panels made of carbon concrete.

[0058] In order to enable quick and secure attachment of the facade panels to the anchoring system, it is advantageous that the facade panels according to the invention are delivered to the construction site already with appropriately mounted connecting means, via which the attachment can be carried out.

[0059] According to the invention, the connection of the at least one or the several facade panels according to the invention to the anchoring system, in particular to the corresponding first support components, is effected via the at least one or the several connecting means which each protrude from the concrete with a projection, wherein the at least one connecting means is a screw. BRIEF DESCRIPTION OF THE FIGURES

[0060] The invention will now be described in detail using specific exemplary embodiments. These will include: Fig. 1 shows a sectional view of a part of a facade according to the invention from the side along section line BB. Fig. 2 ; Fig. 2 a sectional view of a part of a facade according to the invention from above along section line AA from Fig. 1 ; Fig. 3 a sectional view of a part of a facade according to the invention along section line CC from Fig. 1Fig. 4 an axonometric view of a part of a facade according to the invention from the rear; Fig. 5 a sectional view of a part of a facade according to the invention along section line BB. Fig. 2 ; Fig. 6 a second support component; Fig. 7 a first support component; Fig. 8 a sectional view of a first embodiment of a part of a facade according to the invention; Fig. 9 a first support component according to embodiment of Fig. 8 Fig. 10 an axonometric view of a second embodiment of a part of an exterior facade from the rear; Fig. 11 a sectional view of the in Fig. 10 second embodiment shown; Fig. 12 a facade panel with connecting element; Figs. 13-15 axonometric views of reinforcements of a facade panel including connecting element(s).

[0061] Fig. 1 shows a sectional view of a part of a building facade 1 according to the invention along section line BB. Fig. 2An exterior facade 3 is attached to a load-bearing exterior wall 2 of the building, which may, for example, be made of cast-in-place concrete. The exterior facade 3 comprises a number of facade panels 3a, 3b, ..., 3n according to the invention, wherein in Fig. 1 For the sake of simplicity, only two facade panels 3a,3b are shown, while in Fig. 5 The same building facade 1 is shown with three facade panels 3a, 3b, 3c.

[0062] In the illustrated embodiment, the facade panels 3a, 3b, 3c according to the invention are facade panels made of carbon concrete. The carbon fiber reinforcement is designated by reference numeral 18. However, the use of other facade panels according to the invention is also conceivable, for example, facade panels made of concrete with conventional steel reinforcement or glass fiber reinforcement.

[0063] Each facade panel 3a, 3b, ..., 3n is connected to the load-bearing exterior wall 2 of the building via an anchoring system 4. The anchoring system 4 comprises a first support component 5 and a second support component 6, wherein the first support component 5 is connected to a facade panel 3a and the second support component 6 is connected to the load-bearing exterior facade 2.

[0064] For the sake of clarity, the following is included: Figure 1 , 2 , 3 and 4 Only a single anchoring system 4 is shown, which anchors a facade panel, in this case the facade panel 3a, to the load-bearing outer wall 2.

[0065] As already mentioned above, a building facade according to the invention comprises a number of such facade panels, wherein it is provided according to the invention that each facade panel of this number of facade panels 3a, 3b, ..., 3n is connected to the load-bearing outer wall 2 via an anchoring system 4, as is the case, for example, in Fig. 5 as shown using the facade panels 3a,3b.

[0066] The support components 5, 6 are designed at an angle in the present embodiment, as is the case in Fig. 2 , which makes a cut along line AA from Fig. 1 represents, as well as in the Figure 6 and 7 This is evident. For example, a bent steel sheet can be used as a support component 5,6, with each leg forming an anchoring section 5a,6a and each leg forming a connecting section 5b,6b.

[0067] The anchoring sections 5a, 6a serve to anchor the depicted support components 5, 6 to the facade panel 3a or to the load-bearing exterior wall of the building 2. The connecting sections 5b, 6b serve to connect the two support components 5, 6.

[0068] The anchoring section 6a, which is essentially flush against the load-bearing outer wall 2 of the building, can be anchored in the load-bearing outer wall 2, for example, using concrete dowels 24, i.e., the supporting component 6 is screwed to the load-bearing outer wall 2 of the building, possibly with one or more spacer elements 26 in between.

[0069] The connecting sections 5b and 6b run essentially at right angles to the anchoring sections 5a and 6a, so that these components overlap in an overlap area 8 in the space between the outer facade 3 and the load-bearing outer wall 2. It is also conceivable that the connecting sections 5a and 6a do not run at right angles to the anchoring sections 5a and 5b. In this case, however, it is necessary for the connecting sections to protrude from the anchoring sections 5a and 5b at the same angle for proper function, so that a connectable overlap area 8 can be formed.

[0070] In the embodiments shown here, the connecting sections 5b,6b are also formed in a direction parallel to the outer facade and essentially parallel to the ground level of the building in a substantially triangular shape, wherein the overlap area 8 of each connecting section 5b,6b is formed by a corner section.

[0071] In the overlap area 8, at least one connecting element 16a,16b,16c is arranged both in the connecting section 5b of the first support component 5 and in the connecting section 6b of the second support component 6, via which the two connecting sections 5b,6b can be connected to each other.

[0072] In the present embodiments, the connecting elements 16a, 16b, 16c are designed as openings through which the two connecting sections 5b, 6b can be screwed together. If several connecting elements 16a, 16b, 16c are provided, they can be spaced apart from each other in one direction, either perpendicular or parallel to the facade panel 3. In this way, the length of the overlap area 8 can be adjusted, and thus the distance between the outer facade 3 and the load-bearing building exterior wall 2. The resulting variable space between the outer facade 3 and the load-bearing building exterior wall 2 provides space for insulation material 25, which can be placed at this location.

[0073] Alternatively, the at least one connecting element 16a,16b,16c can also be designed as an elongated hole.

[0074] Fig. 4Figure 1 shows an axonometric view of the anchoring system 4 looking at the facade panels 3a, 3b from the rear, i.e., the space between the load-bearing building exterior wall 2 and the facade panels 3a, 3b. For clarity, neither the load-bearing building exterior wall 2 nor the alternative insulation material 25 are shown. The ends of the concrete anchors 24, which would normally be anchored in the load-bearing building exterior wall 2, therefore protrude into the space between the load-bearing building exterior wall 2 and the facade panels 3a, 3b. Fig. 4 into nothingness.

[0075] Very good are in Fig. 4 the overlap area 8 is recognizable as well as the screw connection 7, with which the connecting section 5b of the first support component 5 is connected to the connecting section 6b of the second support component 6.

[0076] To better align adjacent facade panels, as shown in Fig. 8As shown, an alignment lug 11 is provided which protrudes at least one boundary edge 10 of an inner surface 9 of a facade panel, here specifically the facade panel 3a.

[0077] The alignment nose 11 engages in a receptacle 12, which is located on an adjacent facade panel, specifically the facade panel 3b.

[0078] The receptacle 12 can be tapered in the direction of engagement to facilitate insertion and create a kind of press fit to prevent noise-emitting vibrations. The width of the receptacle 12 extends from the facade panel 3b towards the load-bearing exterior wall of the building.

[0079] The alignment lug 11 can either be formed by a section of the anchoring section 5a of the support component 5, as shown in the Figures 8 and 9is shown, or is arranged as a separate component on the inner surface 9 of a facade panel 3a, as shown in the Figures 10 , 11 is shown.

[0080] In both cases, the receptacle 12 can be formed by two spaced-apart sheet metal strips 13a,13b which are attached to the facade panel 3b, in particular screwed to it.

[0081] Regardless of whether the alignment lug 11 is formed by a section of the anchoring section 5a or by a separate component, the strip 13a can be recessed into the adjacent facade panel 3b. For this purpose, the facade panel 3b is provided with a corresponding recess 27. The alignment lug 11 can thus be flush with the inner surface 9 of the facade panel 3a.

[0082] Figures 12 to 15 show connection options for the anchoring section 5a to a facade panel 3a.

[0083] As already explained above, in the illustrated embodiments the facade panels are carbon concrete facade panels 3a, 3b, 3c, or in any case facade panels according to the invention which have a reinforcement 18.

[0084] Regardless of the type of reinforcement 18, connecting elements 17 are fixed to it, projecting beyond the concrete 19 with a projection 20 and preferably cast into it. The connecting elements 17 serve to connect the facade panels to the anchoring system 4, in particular to the supporting component 5.

[0085] The fixing of the connecting means 17 to the reinforcement 18 is effected by clamping elements 21a, 21b, which can be more or less plate-shaped, as shown in the Figures 12 to 15 The two clamping elements 21a, 21b are arranged on both sides of the reinforcement 18 and span in the area shown. Fig. 14In the illustrated embodiment, a mesh opening 23 of the reinforcement 18. In the Fig. 13 In the illustrated embodiment, the clamping elements 21a, 21b are arranged such that no mesh opening 23 is completely spanned; rather, the clamping takes place asymmetrically via a node 28 of the reinforcement 18.

[0086] While in the embodiments in the Figures 12 to 14 where the two clamping elements 21a, 21b are of the same size, in the embodiment according to Fig. 15 A longer clamping element 21a is used, spanning several mesh openings 23. On the opposite side of the reinforcement 18, several smaller clamping elements 21b are used.

[0087] The clamping of the clamping elements 21a, 21b is carried out in the embodiment as in the Figures 12 to 15 shown via one or more screws 14, which act as connecting elements 17.

[0088] For this purpose, the clamping element(s) 21a have one or more openings 22a and the clamping element 21b have one or more openings 22b through which the screw shaft of the screw 14 is guided.

[0089] The clamping elements 21a,21b are clamped to the reinforcement 18 by means of a screw nut 29. REFERENCE MARK LIST

[0090] 1 Building facade 2 Load-bearing building exterior wall 3 Exterior facade 3a, 3b, ... Facade panels 4 Anchoring system 5 First supporting component 5a Anchoring section of the first supporting component 5b Connection section of the first supporting component 6 Second supporting component 6a Anchoring section of the second supporting component 6b Connection section of the second supporting component 7 Connection between first and second supporting components 8 Overlap area of ​​a connection section 9 Inner surface of a facade panel 10 Boundary edges of an inner surface of a facade panel 11 Alignment lug 12 Receptacle 13a, 13b Strips 14 Screw 15 Spacer element 16 Openings 17 Connecting elements 18 Reinforcement 19 Concrete 20 Projection 21a, 21b Clamping elements 22a, 22b Openings 23 Mesh opening 24 Concrete anchor 25 Insulation material 26 Spacer element 27 Recess in the facade panel 28 Junction 29 Screw nut B1 Viewing direction 1 B2 Viewing direction 2

Claims

1. Façade panel (3a, 3b, 3n) having a grid-shaped reinforcement (18) embedded in concrete, preferably cast in concrete, wherein at least one connecting means (17) is provided, which is attached to the reinforcement (18) and protrudes from the concrete with a projection (20), and which is preferably cast in the concrete, and wherein the attachment of the at least one connecting means (17) to the reinforcement (18) is effected via plate-shaped clamping elements (21a, 21b), wherein - a first clamping element (21a) is arranged on one side of the reinforcement (18) and - a second clamping element (21b) is arranged on a side of the reinforcement (18) opposite the first side, and wherein - the at least one connecting means (17) extends in a direction transversely, preferably normally, to the plane of the reinforcement (18), characterized in that the two clamping elements (21a, 21b) have a shape which is larger than a mesh opening (23) of the grid-shaped reinforcement (18), and the at least one connecting means (17) is a screw (14) which is guided through an opening (22a) of the first clamping element (21a), a mesh opening (23) of the grid-shaped reinforcement (18) and an opening (22b) of the second clamping element (21b), and by means of which the two clamping elements (21a, 21b) are screwed to the reinforcement (18).

2. Façade panel (3a, 3b, ..., 3n) according to claim 1, characterized in that the grid-shaped reinforcement (18) is a reinforcement made of carbon fibers.

3. Façade panel (3a, 3b, ..., 3n) according to claim 1 or 2, characterized in that the two clamping elements (21a, 21b) are arranged in a fixed position on both sides of the reinforcement (18) in such a way that they either span at least one mesh opening (23) of the reinforcement (18) or do not completely span any mesh opening (23), wherein the clamping of the two clamping elements (21a, 21b) is performed asymmetrically over at least one node (28) of the reinforcement (18).

4. Façade panel (3a, 3b, ..., 3n) according to one of claims 1 to 3, characterized in that the two clamping elements (21a, 21b) are each of equal size.

5. Façade panel (3a, 3b, ..., 3n) according to one of claims 1 to 3, characterized in that the first clamping element (21a) is longer than the second clamping element (21b), wherein the first clamping element (21a) preferably has one or more openings (22a) and a shape that spans several mesh openings (23) of the grid-shaped reinforcement (18).

6. Building façade (1) having at least one façade panel (3a, 3b, ..., 3n) with a grid-shaped reinforcement (18) embedded in concrete, preferably cast in concrete, according to one of claims 1 to 5, the building façade (1) further comprising - a load-bearing building exterior wall (2), preferably made of in-situ concrete, - an exterior façade (3) extending at a distance from the building exterior wall (2) of the building and constructed from a number of façade panels (3a, 3b, ..., 3n), - an anchoring system (4) for fastening at least one of the façade panels (3a, 3b, ...) to the building exterior wall (2), wherein - the anchoring system (4) comprises a first (5) and a second (6) support component, wherein the first support component (5) is connected on the one hand to a façade panel (3a, 3b, ...) and on the other hand to the second support component (6), and the second support component (6) is also connected to the building exterior wall (2), wherein - the connection (7) between the first and second support components (5, 6) enables relative angular alignment and fixation of the two support components (5, 6) with respect to each other, and wherein - the connection of the at least one façade panel (3a, 3b, ...) to the anchoring system (4), in particular to the first support component (5), is effected via the at least one or via several connecting means (17) each projecting from the concrete with a projection (20), wherein the at least one connecting means (17) is a screw (14).

7. Building façade according to claim 6, characterized in that the connection (7) between the first and second support components (5, 6) is a screw connection.

8. Building façade according to one of claims 6 or 7, characterized in that the first support component (5) comprises an anchoring section (5a) via which the first support component (5) is connected to the at least one façade panel (3a), and the second support component (6) comprises an anchoring section (6a) via which the second support component (6) is connected to the building exterior wall (2).

9. Building façade according to one of claims 6 to 8, characterized in that the first support component (5) comprises a connecting section (5b) projecting from its anchoring section (5a) in the direction of the building exterior wall (2), and the second support component (6) comprises a connecting section (6b) projecting from its anchoring section (6a) in the direction of the exterior façade (3), and the two connecting sections (5b, 6b) each have an overlap area (8) within which the two support components (5, 6) are connected.

10. Building façade according to claim 9, characterized in that at least one connecting element (16a, 16b) is provided in each case in the overlap area (8) of the connecting section (5b) of the first support component (5) and / or the connecting section (6b) of the second support component (6), and in particular at least one opening is provided, through which the two connecting sections (5b, 6b) are connected to each other, preferably screwed together, wherein in the case of several connecting elements (16a, 16b, 16c), these have different distances to the outer façade (3).

11. Building façade according to claim 9 or 10, characterized in that the anchoring section (5a, 6a) and connecting section (5b, 6b) of each support component (5, 6) are of plate-shaped design.

12. Building façade according to one of claims 9 to 11, characterized in that, in a viewing direction (B1) normal to a contact plane of the building, the anchoring section (5a, 6a) and connecting section (5b, 6b) of each support component (5, 6) extend at an angle, preferably at right angles, to each other.

13. Building façade according to one of claims 9 to 12, characterized in that, in a viewing direction (B2) parallel to the outer façade (3) and substantially parallel to a contact plane of the building, at least one connecting section (5b), preferably both connecting sections (5b, 6b), are triangular in shape and the overlap area (8) of each connecting section (5b, 6b) is formed by a corner section.