DE102018126799B4 - Rope net facade with ropes made of fiber composite material - Google Patents

Abstract

A cable mesh facade is presented, the cable mesh of which is made of carbon or a composite material. The cable network and the facade elements 111 lie in one plane, so that a slim, aesthetically pleasing facade results, the two sides of which are freely accessible, for example for cleaning the glass facade.

Description

The invention relates to a cable network facade according to claims 1 and 2. Cable network facades consist of two groups of ropes which form a network of ropes. The ropes of the first group or first group of ropes are referred to in the context of the invention as “first ropes”. They are usually aligned vertically, while the second ropes run horizontally and a network or grid with rectangular fields is created. The crossing point of a first and a second rope is called a node. Depending on the size of the fields, facade elements, usually made of glass, are attached to the cable network. As a rule, the facade elements are connected to the cable network in the area of the nodes, since in this way the connection between the facade elements and the vertically running first cables and the horizontally running second cables can be achieved with one component. It also stabilizes the rope network.

In known cable network facades, the cable network forms a first level and the facade elements form a second level. Both levels run parallel to each other - typically at a distance of about 5 to 10 cm.

This distance is undesirable for aesthetic, practical and economic reasons: Such a cable network facade requires a relatively large amount of installation space and accordingly reduces the usable building area.

In addition, the rope network offers areas of attack for dirt and colonization by spiders etc. and must therefore be cleaned regularly, which causes considerable effort. The rope network makes it difficult to access the facade elements from one side, which makes cleaning them difficult.

The article "On the Potential of Carbon Applications in Construction" by Bernd Zwingmann, Yue Liu and Mike Schlaich (Bautechnik 7/2014) describes the special properties of carbon.

The invention is therefore based on the object of providing a cable network facade which meets the highest aesthetic requirements, meets all requirements under building permit law and, moreover, is easy to maintain and clean.

This object is achieved according to the invention by a cable network facade for a building comprising the features of claims 1 and 2, namely at least one family of first cables and facade elements, the first cables consisting of one or more lamellae of a fiber composite material, the family of pre-tensioned cables is, and wherein the facade elements are arranged in the plane spanned by the cable network.

The family of first ropes, which usually run in the vertical direction, are arranged and pre-tensioned in the joints of two adjacent panes or other facade elements. The facade elements are connected in the area of their (side) edges with a first rope each. This can be done, for example, by gluing with silicone.

The pretension and tensile strength of the first ropes are selected so that wind loads or other loads that would cause the panes to bend are absorbed by the ropes and carried away into the surrounding structure. As a result, the deflection of the disks is reduced so much that the disks connected to the first cables according to the invention do not break even under wind loads.
This object is also achieved according to the invention - in particular if the height of the facade exceeds the selected pane height - by means of a cable network facade for a building comprising the features of claim 2, namely at least one cable network comprising first cables and second cables, facade elements and node elements for introducing the loads of the Facade elements in the rope network, the first ropes and the second ropes of the rope network crossing at nodes, the first ropes and / or the second ropes consisting of one or more lamellae or fiber bundles of a fiber composite material, and wherein the facade elements in the through the rope network spanned plane are arranged.

Due to the gravity acting on the facade elements, the first ropes are generally heavier than the second ropes. This can be compensated for by different load capacities of the ropes.

The first ropes (but also the second ropes) can be designed as a single strand or as two parallel and spaced apart strands. If the first ropes consist of two strands, then the second ropes run between the spaced-apart strands of the first ropes.

A certain redundancy is created by dividing the first or second ropes into two or more strands. Also arise because of due to the symmetrical structure of the rope network, no bending moments in the nodes.

Due to external conditions or boundary conditions, load transfer in only one direction of the rope may be necessary or desirable. This can be controlled individually by different pre-tensioning of the cable shares. However, at least one coulter must be pre-tensioned in a defined manner.

In addition, it is possible, as it were, to insert the facade elements into rectangles formed by the network, so that the facade elements are also arranged in the plane of the cable network. This also eliminates the loads from eccentric load introduction, which result inevitably from a curtain-wall glass facade according to the prior art.

In other words, the first and second ropes run in the spaces or joints between the facade elements and node elements are arranged to connect the facade elements to the ropes. Optionally, an intermediate layer that is effective in terms of building physics, such as thermal insulation, can also be arranged there.

According to the invention, the first ropes can be divided into two strands. The second ropes run between these two strands. This results in a symmetrical structure of the rope network, with the result that all strands or ropes are loaded evenly.

Another advantage of the arrangement according to the invention can be seen in the fact that the facade elements are accessible from both sides without restrictions. In addition, the ropes of the rope network in the joints of the facade elements are optimally protected against mechanical damage and attacks by corrosive media.

Finally, the cable network facade according to the invention is very simple, it is easy to assemble; If necessary, individual facade elements can also be replaced.

In an advantageous embodiment of the invention, the node elements have a receiving surface, a recess being provided for each of the two strands of the first cables in the receiving surface, and a, preferably resilient, flap being arranged on one or two edges of the recess. The resilient flap allows a predetermined contact pressure to be guaranteed for the adhesive and thus ensures high quality of manufacture with simple handling.

When the node element is installed, the receiving surface is aligned horizontally, so that it offers the “support surface” for two facade elements arranged side by side in the horizontal direction. The two strands of the first ropes run between the two facade elements arranged side by side in the horizontal direction. So that the strands of the first ropes cannot be injured or scratched by the recess in the area of the base plate, resilient tabs are formed on both sides of the recess, which effectively prevent the strands from kinking in the area of the base plate.

The resilient tabs extend parallel to a longitudinal axis of the first ropes and protrude, preferably on both sides, beyond the receiving surface. Depending on the weight of the facade elements / panes to be placed, the resilient tabs can be selected in different lengths. As a result, the twists of the node element during assembly with one-sided loading are limited.

In order to effectively prevent kinking or an impermissibly high point load between the base plate and the horizontally running second ropes, in a further preferred embodiment of the invention, a tab or a projection rounded with a large radius is formed on the underside of the base plate. This projection lies on the horizontally running second ropes, so that the horizontally running second ropes are not kinked or mechanically stressed in any other way at this point either.

It has proven to be advantageous if a width of the receiving surface of the node element is less than or equal to a thickness of the facade elements. Then the node element according to the invention, like the first and second ropes, disappears in the joint between the facade elements and is thus almost invisible.

The node elements according to the invention are preferably made of an elastic plastic. Injection molding or 3D printing, for example, are suitable as production processes.

In the cable network facade according to the invention, the first and the second cables run in joints between the facade elements. These joints are preferably grouted with a permanently elastic sealing compound, such as silicone, so that the cable net facade according to the invention seals off an exterior space from an interior space. In addition, the ropes are enclosed in the silicone joint and thus protected from damage.

In addition, the grouting of the facade elements means that the first and second ropes running in the joints and the facade elements are connected to one another in a linear manner and not just in a punctiform manner, as a result of which a uniform load transfer from loads acting orthogonally to the facade elements is achieved in the ropes.

In order to be able to connect the first and second ropes to a building, the ropes have means for fastening. These means for fastening first and second ropes are fastened to a separate frame, a wall and / or a ceiling of a building.

In an advantageous embodiment, the fastenings are prepared with a possibility for adjusting the length and pretension of the ropes and for easy handling during installation.

For this purpose, they can have a sleeve with an internal thread and a threaded ring with an external thread. This threaded ring can be screwed into the internal thread of the sleeve. The threaded ring forms a contact surface for end pieces on the ropes.
By screwing the threaded ring more or less deeply into the sleeve, the position of the support surface is adjusted so that the ropes with their end pieces on the threaded ring have the desired pretension.

In order to ensure the best possible power transmission between the means for fastening first and second ropes and the first and second ropes, the first and second ropes each have an end piece at their ends. The end pieces can have a through bore with an inner cone and at least one clamping piece for clamping the ends of the lamellae in the inner cone. The connections between an end piece, usually made of metal, and a rope or strand of the glass facade according to the invention can be made using an inner cone and clamping pieces. However, other end pieces known from the prior art can also be used in the ropes according to the invention.

In an advantageous embodiment of the invention, the end pieces have an internal thread for pretensioning the ropes. The loosely preassembled ropes are then brought to the desired pretension by a tension screw that is screwed into the internal thread of the end piece. Then the threaded ring is screwed into the sleeve until it rests on the underside of the end piece. Then the clamping screw is unscrewed. The force exerted by the pretensioned ropes is thus transmitted to the sleeve via the end piece and the threaded ring.

The facade elements are usually made of glass, for example as double glazing with two, three or four panes of glass, as single-pane safety glass or as laminated safety glass. Of course, other facade elements can also be integrated into the cable network facade according to the invention. For example, composite panes made of glass and plastic (bulletproof transparent facade elements) or photovoltaic modules or also translucent facade elements or opaque facade elements made of metal or other materials can be integrated into the cable network according to the invention.

Further advantages and advantageous refinements of the invention can be found in the following drawing, its description and the patent claims. All of the features disclosed in the drawing, its description and the patent claims can be essential to the invention both individually and in any combination with one another.

Figure list

• 1 eine schematische Darstellung einer als unregelmäßiges Viereck ausgebildeten erfindungsgemäßen Seilnetzfassade;
• 2 bis 6 verschiedene Schnitte im Bereich des Fugenkreuzes;
• 7 eine Isometrie eines Fugenkreuzes mit einem erfindungsgemäßen Knotenelement;
• 8 ein Ausführungsbeispiel eines erfindungsgemäßen Knotenelements in zwei Isometrien;
• 9 bis 11 die Verbindung zwischen den Seilen und dem Mauerwerk bzw. einem Rahmen,
• 12 ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Knotenelements und
• 13 eine schematische Darstellung eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Seilnetzfassade.

Show it:

• 1 is a schematic representation of a rope network facade designed as an irregular square;
• 2nd to 6 different cuts in the area of the crosshairs;
• 7 an isometric view of a Fugenkreuzes with a node element according to the invention;
• 8th an embodiment of a node element according to the invention in two isometries;
• 9 to 11 the connection between the ropes and the masonry or a frame,
• 12 a further embodiment of a node element according to the invention and
• 13 is a schematic representation of another embodiment of a cable network facade according to the invention.

Description of the embodiments

In the 1 an embodiment of a cable network facade according to the invention is shown in a highly simplified manner. The rope net facade comprises a frame 101 , which is formed as an irregular square in this embodiment. In the frame 101 are first ropes 103 that run essentially vertically and second ropes 105 which are essentially horizontal. The first ropes 103 and the second ropes 105 form the rope network. Where the first ropes are 103 and the second ropes 105 cross, nodes or node 107 . For the sake of clarity, there is only one node in the figure 107 provided with reference numerals.

The ropes 103 , 105 are by means of clamping devices 141 with the frame 101 connected and usually biased. The details of the anchoring of the first and second ropes 105 respectively. 103 on the frame 101 are related below to the 9 to 11 exemplified.

As can be seen from the illustrated embodiment, not all of the first ropes are 103 aligned exactly vertically. The first ropes 103 are arranged in the manner of a group of lines so that they do not have the same orientation. The same applies to the second ropes 105 . Nevertheless, the first ropes form 103 and the second ropes 105 a cable network with right angles in the node at first approximation.

The first ropes 103 essentially bear the weight loads. The second ropes 105 make a contribution to absorbing wind loads or other loads acting orthogonally on the glass facade. Hence the loads of the first ropes 103 usually higher than the load capacities of the second ropes. This can be achieved, for example, by the first ropes 103 are thicker than the second ropes 105 . Another option is the first ropes 103 in two strands 103.1 , 103.2 split up. This second variant is somewhat more complex than the first variant and is therefore described below using the 2nd ff shown and explained.

The first variant with the first ropes 103 consist of one strand, results from the second variant by mentally "leaving out" one of the two strands. Because the two variants are very similar, it is not necessary to explain the simpler first variant in detail; in the 12 An embodiment of a node element is shown for the first variant.

The 2nd represents an isometry of a partially cut node 107 represents.

In the 2nd it can be seen that in this embodiment the first rope 103 from two strands 103.1 and 103.2 consists. Each of these strands 103.1 and 103.2 comprises at least one lamella made of a fiber composite, preferably made of carbon fibers. The strands 103.1 and 103.2 are spaced apart. The gap between the two strands 103.1 and 103.2 is dimensioned with a second rope in between 105 can be passed, which is also preferably made as a lamella made of a fiber composite material.

In this knot 107 going through the two strands 103.1 and 103.2 of the first rope and the second rope 105 is a node element according to the invention 2nd used. The node element 2nd is related below to the 8th explained in more detail.

The node element 2nd includes a receiving surface 109 that are parallel to the second rope 105 is aligned or runs parallel to it. To the details of the node element 2nd to explain is on the 8th referred. The receiving area 109 comprises two recesses (without reference numerals). The two strands run through these recesses 103.1 and 103.2 .

To prevent the strands 103.1 , 103.2 in the area of the recesses are overloaded or even kinked at the receiving surface 109 Tabs 3rd educated. The tabs 3rd are arranged so that they run parallel to two edges of the recess. The tabs 3rd are preferably elastic and resilient. In particular, their cross-section decreases with increasing distance from the receiving surface. This ensures that where the strands are 103.1 and 103.2 through the receiving surface 109 of the node element 2nd be performed, no kinking of the former is possible. The tabs 3rd are symmetrical to the receiving surface in the illustrated embodiment 109 educated; they extend in both directions over the receiving surface 109 out.

Similarly, are on the underside of the node element 2nd two tabs 4th educated. The tabs 4th are spaced from each other so that a horizontally running first rope 105 (please refer 2nd ) between the tabs 4th can be passed through. The tabs 3rd , 4th ensure that the first or second ropes 103 , 105 through the node element 2nd cannot be "injured" or damaged. Other designs of the node elements are of course also possible 2nd conceivable and possible. The node elements 2nd are used to connect the facade elements to the ropes without damaging the ropes.

Because the node element 2nd from the top on a second rope 105 only need to be placed on the underside of the node element 2nd Tabs 4th be provided.

From the 2nd it becomes clear that the node element 2nd from the top of the second rope 105 is put on and the two strands 103.1 , 103.2 through the recesses and the tabs 3rd be performed.

On the receiving surface 109 of the node element 2nd can right and left of the strand of first two additional facade elements 111 be put on. This allows weight forces from the facade elements 111 in the node element 2nd be initiated.

Direct contact between the lower edges of the facade elements 111 and the second rope 105 there is not any. The same applies to the side edges of the facade elements 111 and the first ropes 103 .

From the facade elements 111 that are above the second rope 105 only the rear pane is shown. The facade elements are usually designed as laminated glass or insulating glass with at least one front pane and one rear pane and a frame. The two facade elements 111 below the second rope 105 show both panes of the laminated glass. The front windows, not shown, of an upper facade element designed as laminated glass 111 like the ones in the upper part of the 2nd shown rear discs on the receiving surface 109 of the node element 2nd switched off.

The 4a) and b) shows cuts along the line BB from the 3rd . In both cuts are the second rope 105 and the facade element designed as laminated glass 111 clearly visible. The facade element 111 consists of two glass panes 5 by an edge bond 6 were combined in a manner known per se to form a laminated glass or to form insulating glazing.

In the 4 b) is a variant shown between the second rope 105 and two panes of glass 5 neighboring facade elements 11 a strip-shaped element 201 is arranged. The strip-shaped element 201 can be used to improve thermal insulation. However, it can also only be used for optical / design purposes.

In the embodiment according to 4th are the two panes of glass 5 of a facade element 111 equally dimensioned. The 5 shows an embodiment in which the outer glass panes (left in the 5 ) over the edge bond 6 protrude slightly so that the gap between the adjacent panes of glass 5 is minimized. This reduces the visible joint.

The space between the facade elements 111 is filled with a permanently elastic material, such as silicone. This results in a linear elastic adhesive connection between the ropes 103 respectively. 105 and the facade elements 111 . This connection is sufficiently firm to the facade elements 111 permanently with the rope net, consisting of the first ropes 103 and the second ropes 105 , connect to. However, this connection is also sufficiently elastic to be able to compensate for deformations, for example as a result of wind loads or temperature-induced changes in length, and thus to even out the load transfer on the ropes.

In the 6 is a cut along the line CC represented by the embodiment of the invention. This illustration shows, among other things, that the first ropes consist of two strands 103.1 and 103.2 can exist. A distance between the strands 103.1 and 103.2 is dimensioned so that a first rope 105 (not shown in the 6 ) can be passed between the strands mentioned.

This rope network is symmetrical with respect to a plane of symmetry that is parallel to that of the disks 5 formed outer surface of the facade. The strands 103.1 and 103.2 are dimensioned and spaced from each other so that they are in the joint between the facade elements 111 disappear and not over the outside of the facade elements 111 protrude. In other words, the strands too 103.2 and 103.1 are made of silicone on all sides, or another permanently elastic woven fabric, which forms the joint between the facade elements 111 filled in, enclosed.

The 7 shows a bottom view of a node 107 . From this bottom view it is clear that the first rope 105 under the node element 2nd runs through. It is also clear that the two tabs 4th the node element 2nd on the first or rope 105 Secure against slipping. It is therefore not possible for the node elements 2nd even when exposed to the greatest wind loads or other forces from the second rope 105 slip off.

Carrying out the strands 103.1 and 103.2 through the recesses in the receiving surface 109 of the node element 2nd is in the 7 also easy to recognize.

The rope network, consisting of the first ropes 103 and the second ropes 105 must be prestressed before the glass or facade elements 111 be used. At least one group of ropes 103 , 105 must be preloaded in a defined manner.

Embodiments of such a bias are based on the 9a , 9b and 10th shown.

The two strands 103.1 and 103.2 end in a tail 12 that has an inner bore with an inner cone 115 and an external thread 121 ( 9a) or an internal thread 117 ( 9b) having. The strands 103.1 and 103.2 are in the tail 12 anchored. For example, gradient anchoring in a conical sleeve is used 115 used to end the strands 103.1 and 103.2 by a potting compound in the inner cone 115 anchored in a form-fitting and material-locking manner. Basically, all types of fastening or connection between the strands 103.1 and 103.2 and the tail 12 according to the prior art used in the invention.

The frame 101 is with the in 9a and 9b The exemplary embodiments shown are designed as rectangular tubes. In the rectangular tube of the frame 101 is a sleeve 10th welded. In this sleeve 10th becomes the end piece from below 12 of the rope 103 , 105 introduced. The tail 12 has a continuous external thread in this embodiment 121 .

A threaded bolt (not shown) is screwed in from above as an assembly aid. The rope can be stretched to the desired pretension by means of a hydraulic hollow piston press or another tensioning device. In this case, it may be assumed that the clamping paths are considerably long, so that the final fixation may only be used after clamping. To do this, either an internally threaded sleeve ( 123 in 9a) screwed in from the tension side until the collar 127 on the welded sleeve 10th comes to rest, or alternatively - depending on the accessibility - a beforehand over the end piece 12 slidable collar 13 from the rope side (in the figures from "below") against the end piece 12 turned. The collar 13 has a central stepped through opening through which the end or head piece 12 of a first rope 103 or a second rope 105 can be passed through. Between the tail 12 and the collar 13 are split load transfer plates 13a arranged. You will be in the collar 12 inserted before this into the sleeve 10th is screwed in and reduce the through opening of the adjusting ring 13 so far that the tail 12 on the wedge plates 13a lies on. As soon as the desired preload is reached and the adjusting ring 13 towards the lower end of the tail 12 the collar takes over 13 the transmission of the biasing force and the tensioning device, not shown, can be removed.

In the 9a is a first rope with the strands 103.1 and the strands 103.2 shown graphically.

The rope 103 can for example by means of two semicircular wedge plates (without reference numerals) in the inner cone 115 of the tail 12 be jammed. A similar construction is known from engine technology: there the spring plates are attached to the stem of a gas exchange valve with the help of two-part wedge plates.

In the 9b another variant is shown. In this variant, a clamping screw, not shown, comes 129 used in an internal thread 117 at the top of the tail 12 is screwed in. The tension screw 129 is passed through a hollow piston press (not shown) and stripped at the top. By actuating the hollow piston press, the end piece moves 12 in the 9b up. This tensioning process continues until the first rope 103 has the prescribed preload. Then the collar 13 into the internal thread of the sleeve 10th rotated until it is in contact with the end piece 13 has come. Then the clamping screw from the internal thread 117 turned out; the tail 12 sits on the threaded sleeve 13a or the collar 13 open and the clamping process is finished. This tensioning process with all the first ropes 103 and all second ropes 105 executed one after the other.

To prevent the strands 103.1 and 103.2 on the threaded ring 13 scratched or otherwise damaged, an elastic damping element, similar to an O-ring, may be provided on the through opening of the threaded ring.

Below the frame 101 can be an aperture or cover strips 14 be arranged. In the cover strips 14 are seals 15 provided that ensure that the facade elements in the frame are constrained but non-positive and weatherproof 101 are led. It goes without saying that such an end piece 12 even with a second rope 105 can be carried out in a comparable manner with only one strand or other rope construction.

The 10th shows a section along the line AA from the 9b .

In the 11 is anchored in the sleeve 10th illustrated in a solid building. The load transfer from the sleeve 17th in solid construction, for example, is done using horizontal stud bolts. The interior of the sleeve is the same as in the embodiment according to the 9 and 10th .

In the 12 is an embodiment of a node element 2nd shown in the recording area 109 only a recess (without reference numerals) comprises a first rope 103 running.

To prevent the first rope 103 are overloaded or even kinked in the area of the recess, are on the receiving surface 109 Tabs 3rd educated. The tabs 3rd are arranged so that they run parallel to two edges of the recess. The tabs 3rd are preferably elastic and resilient. In particular, their cross-section decreases with increasing distance from the receiving surface. This ensures that where the strands are 103.1 and 103.2 through the receiving surface 109 of the node element 2nd be performed, no kinking of the former is possible. The tabs 3rd are symmetrical to the receiving surface in the illustrated embodiment 109 educated; they extend in both directions over the receiving surface 109 out.

Similarly, are on the underside of the node element 2nd two tabs 4th educated. The tabs 4th are spaced from each other so that a horizontally running first rope 105 (please refer 2nd ) between the tabs 4th can be passed through. The tabs 3rd , 4th ensure that the first or second ropes 103 , 105 through the node element 2nd cannot be "injured" or damaged.

In the 13 another embodiment of a cable net facade according to the invention is shown cut away in a highly simplified manner. From the frame 101 only two horizontal trusses are shown. There is a bevy of first ropes between the trusses 103 attached. The first ropes 103 are biased. In this embodiment, the rope network consists only of the first ropes 103 .

In this embodiment, the facade elements extend 111 in the vertical direction from the lower to the upper crossbeam of the frame 101 . Therefore there are second ropes 105 dispensable.

• Die Gewichtskraft der Scheibe wird von der Unterkante der Scheibe, bzw. dem Fassadenelement 111 auf die untere Traverse des Rahmens 101 übertragen. Dazu ist es in der Regel erforderlich, Zwischenstücke (nicht dargestellt) zwischen Scheibe und Rahmen anzuordnen; diese sind nicht dargestellt.

The force transmission and transmission in this embodiment are as follows:

• The weight of the pane is determined by the lower edge of the pane or the facade element 111 on the lower crossbeam of the frame 101 transfer. For this purpose, it is usually necessary to arrange intermediate pieces (not shown) between the pane and the frame; these are not shown.

The pre-tensioned first ropes 103 prevent bez. Effectively reduce the deflection of the panes due to wind loads or other orthogonal loads on the glass facade. This makes it possible to hold extremely large panes securely and to design a visually very reserved and aesthetically pleasing facade. The size of the disks can be selected according to the maximum producible dimensions. These are currently usually up to 18 m long and 3 m wide. An area of more than 50m ² is thus covered with one pane.

Regarding the anchoring of the first ropes 103 on the frame 101 applies in connection with the 9 to 11 Said accordingly.

Claims (16)

Cable network facade for a building comprising at least one set of first cables (103) and several facade elements (111), the first cables (103) consisting of one or more lamellae of a fiber composite material, the set of first cables (103) being prestressed, and wherein the facade elements (111) are arranged in the plane spanned by the cable network. Cable network facade for a building comprising at least one cable network consisting of first cables (103) and second cables (105), facade elements (111) and knot elements (2) for introducing the loads of the facade elements (111) into the cable network, the first cables (103 ) and the second ropes (105) intersect at nodes (107), the first ropes (103) and / or the second ropes (105) consisting of one or more lamellae of a fiber composite material, at least one group of the ropes being prestressed, and wherein the facade elements (111) are arranged in the plane spanned by the cable network. Rope net facade after Claim 2 , characterized in that the node elements (2) have a receiving surface (109) for transmitting the self-weight loads of the facade elements (11), that a recess is provided in the receptacle (109) for each strand (103.1, 103.2) of the first cables (103) and that optionally a tab (4) is formed on one or two edges of the recess. Rope net facade after Claim 2 , characterized in that the tabs (4) or other elements to ensure the position of facade elements and to protect the ropes (103) extend parallel to a longitudinal axis of the first ropes (103), and that the tabs (4) to one side , but preferably protrude on both sides beyond the receptacle (109). Rope net facade after Claim 4 , characterized in that the node elements (2) have elastically resilient tabs (4) for on-site non-positive bonding with the ropes. Rope net facade after Claim 3 , characterized in that a width (B) of the receiving surface (109) is less than or equal to a thickness (D) of the facade elements (111). Rope net facade according to one of the preceding Claims 2 to 5 , characterized in that the node elements (2) are made of a plastic. Cable net facade according to one of the preceding claims, characterized in that the cables (103, 105) run in joints between the facade elements (111). Rope net facade after Claim 8 , characterized in that the joints are filled with a permanently elastic sealing compound. Cable net facade according to one of the preceding claims, characterized in that it has means for fastening first and second cables (103, 105). Rope net facade after Claim 10 , characterized in that the means for fastening first and second ropes (103, 105) comprise a length-adjustable anchor. Rope net facade after Claim 11 , characterized in that the means for fastening first and second ropes (103, 105) comprise a sleeve (10) with an internal thread (11) and a threaded ring (13) with an external thread. Rope net facade according to one of the Claims 9 to 11 , characterized in that the means for attaching ropes (103, 105) to a frame (101) or anchored directly in the structure of a building. Cable net facade according to one of the preceding claims, characterized in that the first and second cables (103, 105) each have an end piece (12) at their ends. Rope net facade after Claim 14 , characterized in that the end pieces (12) have means (117) for pretensioning the ropes (103, 105). Cable net facade according to one of the preceding claims, characterized in that the facade elements (11) are designed as insulating glazing with two or more panes.

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