Reinforcement cage for precast stairs and device for manufacturing one

Description

[0001] The invention relates to a reinforcement cage for stairs manufactured as precast concrete elements, with at least one support bracket, which has interconnected reinforcing bars.

[0002] A reinforcement cage of this type is known from DE 12 02 460 B. Further reinforcement cages for stairs manufactured as precast concrete elements, which have interconnected reinforcing bars, are known from JP 2007 308975 A and FR 1 082 834 A.

[0003] The invention further relates to a device for manufacturing such a reinforcement cage.

[0004] Bending devices for reinforcement grids for concrete slabs or stair treads are known from CH 687 008 A5, DE 24 56 776 and FR 1287109 A, which have a base surface for reinforcing bars as well as pivotable bending levers, bending arms or the like for bending the ends or sections of the bars.

[0005] Due to varying floor heights and ceiling thicknesses in construction, as well as different tread widths, support designs, and tread thicknesses of the stairs themselves, there is a need for a large number of differently designed reinforcement cages for stairs. This reduces the economic advantage that prefabrication offers compared to on-site manufactured stairs.

[0006] According to current technology, reinforcement cages for each staircase are individually manufactured from a large number of individual, also individually produced, reinforcing bars and stirrups, which are tied or welded together. This manufacturing process is very time-consuming and therefore expensive, and also results in undesirable deviations from the desired dimensions.

[0007] The aim of the invention is therefore to be able to manufacture reinforcement cages cost-effectively, accurately and within a short time using standard reinforcement elements.

[0008] This problem is solved with a reinforcement cage having the features of claim 1.

[0009] This problem is further solved with a reinforcement cage having the features of claim 2.

[0010] Depending on the shape of the staircase to be manufactured, particularly with regard to the support brackets at the top and bottom of the staircase, the invention can be used either for the top or the bottom support bracket, or for both. Within the scope of the invention, the term "bracket" encompasses all possible configurations of the top and bottom of the staircase, such as landings or the like.

[0011] To achieve this goal, the invention utilizes standard reinforcement components, namely a top part for an upper support bracket and / or a bottom part for a lower support bracket and a middle part for the running slab, as well as intermediate parts for connecting the middle part to the top part and / or bottom part, while taking advantage of different concrete cover thicknesses and unreinforced concrete areas. For certain sizes, the top and bottom parts as well as the intermediate parts can be standardized and then preferably connected, in particular by welding, to the mostly customized, but to a certain extent also standardized, middle parts to form the reinforcement cage in a specially designed device.

[0012] In a preferred embodiment of the invention, longitudinal bars of the upper and / or lower intermediate section are arranged parallel to longitudinal bars of the middle section and connected to them. The intermediate sections are separate parts, assemblies, or modules that are connected to the middle section and the upper or lower section.

[0013] In an alternative embodiment not covered by the scope of the claims, longitudinal bars of the upper and / or lower intermediate section are the ends of longitudinal bars of the middle section. Here, the intermediate sections are formed by the correspondingly bent ends of the longitudinal bars; in other words, the intermediate sections are integrated into the ends of the longitudinal bars of the middle section.

[0014] A reinforcement cage can have either separate intermediate parts at both ends or a separate intermediate part at one end and an integrated intermediate part at the other end.

[0015] The object of the invention is further achieved with a device for producing such a reinforcement cage, which has the features of claim 13 or 16.

[0016] The device is designed so that the geometry of the entire reinforcement cage is created by adjusting the bearing surfaces for the standard reinforcement elements.

[0017] The data for setting up the device is preferably generated from the stair design tool. Furthermore, the stairs can be constructed with only the reinforcement required for the final installed state as standard. The reinforcement required for the loads during transport and assembly can be used for the secure positioning of the reinforcement cage in the formwork.

[0018] Further preferred embodiments of the invention are the subject of the remaining dependent claims.

[0019] Further features and advantages of the invention will become apparent from the following description of preferred embodiments of the invention with reference to the accompanying drawings. These show: Fig. 1 a first embodiment of a reinforcement cage according to the invention in elevation, Fig. 2 an embodiment of an upper intermediate part according to the invention in oblique elevation, Fig. 3 an embodiment of a lower intermediate part according to the invention in oblique elevation, Fig. 4 an embodiment of an upper part according to the invention in oblique elevation, Fig. 5 an embodiment of a middle part according to the invention in oblique elevation, Fig. 6 schematically possibilities for embedding upper, lower and intermediate parts in an upper and lower support bracket, Fig. 7 a non-inventive embodiment of a middle part with integrated intermediate parts, Fig. 8 a further embodiment of a reinforcement cage according to the invention in elevation, Fig. 9 a detail of a middle part, Fig. 10 a further embodiment of a non-inventive reinforcement cage in elevation and Fig. 11 an embodiment of a device for manufacturing the reinforcement cage of Fig. 7 .

[0020] In Fig. 1 A first embodiment of a reinforcement cage according to the invention is shown, which consists of four standard elements, namely a top part 2, an upper intermediate part 3, a bottom part 4, a lower intermediate part 5 and a middle part 1 which in many cases is individual with regard to its length, width and height.

[0021] The central section 1 comprises two or more longitudinal bars 6 arranged side by side in a first plane and two or more longitudinal bars 7 arranged side by side in a second plane above the first plane. The longitudinal bars 6 and 7 are connected to each other by lattice girders 8, which are welded to the longitudinal bars 6 and 7, respectively. The number of lattice girders 8 depends on the length of the staircase and the calculated load on the staircase for which the reinforcement cage is designed, and in particular also on the loads during transport and handling.

[0022] It is not necessary for all longitudinal bars 6, 7 to be attached to all lattice girders, especially not welded. It is sufficient if all reinforcement components are connected to form a sufficiently stable cage.

[0023] The lattice girders 8 consist of first connecting bars 9 and second connecting bars 10, which are welded together via transverse bars 11, 12, 13. The first connecting bars 9 and second connecting bars 10 are preferably arranged in pairs in an A-shape, with the second connecting bars 10 being welded to a transverse bar 13 at the apex of the A. The transverse bar 12 of each lattice girder 8 is welded to some or all of the lower longitudinal bars 6, whereas the transverse bar 11 is not connected to the longitudinal bars 4. Therefore, the transverse bars 11 can be displaced relative to the longitudinal bars 6.

[0024] This allows for adjustment of the distance between the upper and lower longitudinal bars 6, 7, as shown in Fig. 9 As shown, with closed formwork, the height of the lattice girders 8 is chosen so that the distance between the upper and lower longitudinal bars 6, 7 is slightly greater than would be required in the formwork when installed. During assembly of the formwork, it then presses directly, or via spacers 14, onto the upper longitudinal bars 7 of the reinforcement cage 8. This spreads the legs or connecting bars 9, 10 of the lattice girders 8, thus adjusting the distance between the longitudinal bars 6, 7. At the same time, the reinforcement cage 8 is pressed into the desired position within the formwork.

[0025] It is understood that the upper and lower longitudinal bars 6, 7 can also be connected to each other in any other way. The upper longitudinal bars 7 can also be omitted entirely or replaced by another form of reinforcement.

[0026] At the Fig. 1 At the upper end of the central section 1, an upper intermediate section 3 is arranged, comprising two or more adjacent longitudinal bars 15 with a bent connecting section 16 and a U-shaped end 17. The longitudinal bars 15 and their bent connecting sections 16 are welded together via transverse bars 18, 19, forming a largely stable and transportable unit or assembly. The upper intermediate section 3 is either welded directly to the longitudinal bars 6 of the central section 1 via its longitudinal bars 15, or, if the longitudinal bars 6, 15 are adjacent, via one or more transverse bars, for example, the transverse bar 18, to the longitudinal bars 6 of the central section 1.

[0027] The upper part 2 preferably has a number of longitudinal bars 20 corresponding to the number of longitudinal bars 6, 15 of the middle part 1 or intermediate part 3, which are arranged approximately at right angles to the connecting sections 16 and welded to them. The longitudinal bars 20 of the upper part 2 are also welded to the bent ends 17 of the intermediate part 3.

[0028] The longitudinal bars 20 of the upper part 2 have a section 21 that is preferably bent at a right angle. Adjacent longitudinal bars 20 of the upper part 2 are in turn connected to each other by means of transverse bars 22, 23, which are welded to the longitudinal bars 20 or their bent sections 21.

[0029] In Fig. 1 An upper support bracket 24 with a tread surface 25 and the middle section 26 of the staircase with steps 27 and a tread surface 28 are shown. The longitudinal bars 20 of the upper section 2 are arranged parallel to a main plane of the support bracket 24, which in turn lies in or parallel to the tread surface 25. The connecting sections 16 of the longitudinal bars 15 and their U-shaped bent ends 17 are arranged at right angles to the longitudinal bars 20 and welded to them.

[0030] On suitable elements of the reinforcement cage, in the example of the Fig. 1 Spacers 29 are attached to the longitudinal bars 6, the connecting sections 16, and the bent sections 21, defining the distance of these parts to a formwork (not shown) for the staircase. The upper longitudinal bars 7 of the central section 1 are positioned either as shown. Fig. 1 In the lower section, as can be seen, in the area of ​​corners 30, they are directly attached to the (not shown) stair formwork or, as already described and shown in the upper section of the middle part 1, are also spaced slightly away from the formwork and thus from corner 30 by spacers 14, which preferably consist of non-corrosive material.

[0031] At the Fig. 1 At the lower end of the central section 1, as shown, a lower intermediate section 5 is arranged, which has two or more adjacent longitudinal bars 31 with a bent connecting section 32 and a U-shaped end 33. The longitudinal bars 31 and their bent connecting sections 32 are welded together via transverse bars 34, 35, so that here too a largely stable and transportable unit or assembly is formed. The lower intermediate section 5, like the upper intermediate section 3, is either welded directly to the longitudinal bars 6 of the central section 1 via its longitudinal bars 31 or, for example, via the transverse bar 34, to the longitudinal bars 6 of the central section 1.

[0032] The lower part 4, like the upper part 2, preferably has a number of longitudinal bars 36 corresponding to the number of longitudinal bars 6, 31 of the middle part 1 or intermediate part 5, which are arranged approximately at right angles to the connecting sections 32 of the intermediate part 5 and welded to them. The longitudinal bars 36 of the lower part 4 are also welded to the bent ends 33 of the intermediate part 5. Here, too, an indirect connection of the longitudinal bars via the transverse bars would be possible.

[0033] The longitudinal bars 36 of the lower part 4 have a section 37 that is preferably bent at a right angle. Adjacent longitudinal bars 36 of the lower part 4 are in turn connected to each other by means of transverse bars 22, 23, which are welded to the longitudinal bars 36 or their bent sections 37.

[0034] In Fig. 1 Furthermore, a lower support bracket 38 with a tread surface 39 is visible. The longitudinal bars 36 of the lower part 4 are arranged parallel to a main plane of the support bracket 38, which lies in or parallel to the tread surface 39. The connecting sections 32 of the longitudinal bars 31 of the lower intermediate part 5 and their U-shaped bent ends 33 are arranged at right angles to the longitudinal bars 36 of the lower part 4 and welded to them.

[0035] If the upper and lower support brackets 24, 38 are similarly dimensioned, the upper part 2 and the lower part 4 can be identical. According to the invention, an upper part 2 and a lower part 4 can be provided for a wide range of support brackets or pedestals using just a few standardized parts, which can be kept in stock in suitable quantities or, due to their known dimensions, can be manufactured quickly as needed.

[0036] By using intermediate parts 3, 5 according to the invention, particularly in standardized sizes, it is also possible to position standardized upper parts 2 or lower parts 4 with reference to the middle part 1 in such a way that a large number of different heights of support brackets with a suitable concrete cover can be realized.

[0037] It is also possible to take different stair gradients into account, such as... Fig. 6 This drawing shows that standardized intermediate parts 3, 5 can also be used when the slope of the staircase differs from that shown in the diagram. Fig. 1 The ideal slope shown is greater (shown in solid lines) or smaller (shown in dashed lines) because the connecting sections 16, 32 are then not attached to the longitudinal bars 20, 36 at an angle of 90°, but this has no adverse effect on the functionality of the reinforcement cage within certain limits.

[0038] In Fig. 7 An alternative embodiment, not according to the invention, is shown in which the upper intermediate part 40 and the lower intermediate part 41 are integrated into the longitudinal bars 42 of the middle part. Accordingly, the ends of the longitudinal bars 42 of the middle part simultaneously form the longitudinal bars of the upper intermediate part 40 and the lower intermediate part 41, with the connecting sections 43, 44 being as already described in connection with the embodiment of Fig. 1 described are bent over and can be connected to an upper part 2 and a lower part 4. Furthermore, the embodiment of Fig. 7 like those of Fig. 1 be executed. The embodiment of Fig. 7 Although, in comparison with the embodiment of Fig. 1 This represents a limitation of the variability in the longitudinal direction of the central part 1, but nevertheless offers the desired adaptability in the vertical and horizontal directions at the support brackets 24, 38 and also with regard to the angle of inclination as well as with regard to Fig. 6 described.

[0039] In Fig. 8 Figure 1 shows a further embodiment of a reinforcement cage according to the invention, which can be used particularly for long support brackets or platforms 45, 46. The upper part 2 and the lower part 4 are constructed exactly as shown in Figure 2. Fig. 1 The upper intermediate part 3 and the lower intermediate part 5 are essentially exactly as described. Fig. 1 as described, except that the longitudinal bars 20, 36 of the intermediate parts 3, 5 are arranged at an angle of 90° to their connecting sections 16, 32.

[0040] The upper intermediate part 3 or its longitudinal rod 20 is in the embodiment of Fig. 8 The connecting part 47 is connected to the longitudinal bar 6 of the middle section 1, preferably by welding. The connecting part 47 represents an extension of the longitudinal bar 20 of the intermediate section 3.

[0041] At its end 48, the connecting part 47 is angled parallel to the longitudinal bars 6 of the middle part and additionally connected to an additional part 49, which reinforces the reinforcement of the staircase in the area of ​​the top.

[0042] In the area of ​​the lower platform 46, the longitudinal bar 6 of the middle section is bent at its end 50 towards the longitudinal bar 36 of the lower intermediate section 5 and welded to it. Alternatively, the longitudinal bar 36 of the lower intermediate section 5 could also be extended towards the longitudinal bar 6 of the middle section and then welded to it. In this embodiment, a further reinforcement element 51 is arranged in the area of ​​the lower platform 46, which, analogous to the upper reinforcement element 49, reinforces the staircase in this area.

[0043] At the Fig. 10 In the illustrated, non-inventive embodiment, the longitudinal bars 6 of the central part 1 have a bent connecting section 52 at their right end and a V-shaped bent end 53 thereafter. The bent connecting section 52 with its V-shaped bent end 53 forms, as in the embodiment of Fig. 7 in turn a middle section 40 integrated into the longitudinal bar 6.

[0044] Top part 2 is like... Fig. 1 as described and welded to the connecting sections 52 and the bent ends 53 of the intermediate part 40.

[0045] The lower part 4 of the non-inventive embodiment of Fig. 10 The lower part 4 is attached to the central part 1 without an intermediate section and has longitudinal bars 54 extending in or parallel to a main plane of a lower support bracket and having a bent section 55 that is arranged parallel to the respective longitudinal bar 6 of the central part 1 and welded to it. The longitudinal bars 54 of the lower part 4 also have a further section 56 at their other end, preferably bent at a right angle. Adjacent longitudinal bars 54 of the lower part 4 are connected to each other by means of transverse bars 57, 58, which are welded to the longitudinal bars 54 or their bent sections 55, 56.

[0046] At the in Fig. 11 In the illustrated embodiment of a reinforcement cage not according to the invention, the longitudinal bars 6 of the central part 1 have a V-shaped bent connecting section 58 in the area of ​​the lower support bracket or lower part 4 of the reinforcement cage, which is preferably aligned at a right angle to the respective longitudinal bar 54 of the lower part 4 and welded to it. The ends 59 of the longitudinal bars 54 of the lower part 4 are welded to the longitudinal bars 6 of the central part 1, but could also have a bent section 55 analogous to Fig. 10 exhibit. In addition, the longitudinal bars 54 of the lower part 4 are connected to each other via welded transverse bars 60.

[0047] For the production of all described embodiments of the reinforcement cages according to the invention, standardized top sections, bottom sections, and intermediate sections are preferably prefabricated in longer lengths (viewed in the direction of the crossbars), and then the required lengths are cut to size depending on the stair width. This allows for a relatively small number of variants for common stair widths and support brackets. The great variety of different staircases essentially consists mainly of different step ratios, number of steps, support design, stair width, and tread thickness.

[0048] A device with which reinforcement cages with the middle part 1 as well as the upper part 2 and lower part 4 can be manufactured is in a preferred embodiment in Fig. 11 depicted.

[0049] This device has a base surface 61 on a base plate or base frame 62, on which the longitudinal bars 6 of the central section 1 are placed. Furthermore, the device has a first support 63, pivotable relative to the base surface, for the upper section 2 of the reinforcement cage, and a second support 64, pivotable and slidable relative to the base surface 61, for the lower section 4 of the reinforcement cage.

[0050] The holder 63 for the upper part 2 has a first support surface 65 for the bent connecting sections 52 of the longitudinal bars 6 of the intermediate part 40 and a second support surface 66, preferably arranged at a right angle thereto, for the longitudinal bars 20 of the upper part 2. Furthermore, the holder 63 has a third support surface 67 for the bent sections 21 of the longitudinal bars 20 of the upper part 2, which preferably also extends at a right angle to the second support surface 66.

[0051] In Fig. 11It can be seen that a support 68 for the third support surface 67 is adjustable in the direction of the double arrow 70 by means of a preferably motor-driven threaded spindle 69 in order to adapt the device to longitudinal rods 20 of different lengths for support brackets 24 of different lengths. A support 71 for the first and second support surfaces 65, 66 can be adjusted in the direction of the double arrow 72 in order to adapt the bracket 63 to connecting sections 52 of different lengths or support bracket heights.

[0052] In principle, it is also conceivable that the angle of the support surfaces 65, 66, 67 to each other is adjustable.

[0053] The bracket 64 for the lower part 4 is not only pivotable in the direction of the double arrow 73, but also slidable in the direction of the double arrow 74 in order to adapt the device to intermediate parts 1 of different lengths. The bracket 64 also has a support 80 for a first bearing surface 75 for the longitudinal bars 54 extending in or parallel to the main plane of the support bracket of the lower part, and a second bearing surface 76, preferably arranged at a right angle thereto, for a bent section 56 of the longitudinal bars 54 of the lower part 4.

[0054] A support 77 for the second support surface 76 is adjustable in the direction of the double arrow 79 by means of a preferably motor-driven threaded spindle 78 in order to adapt the device to longitudinal rods 54 of different lengths for support brackets of different lengths.

[0055] If the height of the support surface 75 of the bracket 64 is also adjustable in the direction of the double arrow 81, then lower parts 4 can also be easily positioned using intermediate parts of variable length with this bracket 64.

[0056] The production of the reinforcement cages using the device according to the invention can be carried out by first adjusting the supports 63, 64 by hand or automatically controlled in the suitable positions or angles for the length of the middle part 1 and the position and size of the upper part 2 and the lower part 4 and, if present, the separate intermediate parts.

[0057] The longitudinal bars 6 of the middle section 1, the upper section 2, the lower section 4, and any separate intermediate sections are then inserted into the device. The position of the upper section 2, the lower section 4, and any intermediate sections is automatically determined by the holders 63 and 64. In the versions with integrated intermediate sections, the longitudinal position of the longitudinal bars 6 is also determined by the holders 63 and 64. In the embodiment with separate intermediate sections, additional holders are provided on the support surface 61. In the transverse direction, the longitudinal bars 6, the upper section 2, the lower section 4, and any separate intermediate sections are aligned and brought into contact with each other when inserted into the device. The individual bars and sections can then be welded together at the described locations with very high dimensional accuracy.

[0058] Then the lattice girders 8 with their crossbars 12 are welded to the longitudinal bars 6. The upper longitudinal bars 7 can now also be welded to the lattice girders 8 as described. Theoretically, however, it would also be possible to insert the middle section 1 into the fixture as a prefabricated module and then weld it to the prefabricated upper section 2 and lower section 4.

[0059] In the preceding description of preferred embodiments, a welded connection was described as the preferred joining method for the individual reinforcement elements. However, instead of a welded connection, any other connection, such as gluing or tying with wire, can also be used, and different joining methods can be used simultaneously in the case of a cage.

[0060] With the reinforcement cage according to the invention and the device according to the invention for producing it, not only stairs but also walking surfaces without steps can be produced.

Claims

1. Reinforcement cage for stairs manufactured as precast concrete elements having at least one support bracket (24, 45), the reinforcement cage comprising reinforcement bars connected to each other, an upper part (2) for an upper support bracket (24, 45), an upper intermediate part (3), and a central part (1), wherein the upper part (2), the upper intermediate part (3), and the central part (1) comprise longitudinal bars (6, 15, 20, 47) connected to one another via transverse bars (12, 18, 19, 22, 23), wherein the longitudinal bars (20) of the upper part (2) extend in or parallel to a main plane of the support bracket (24, 45) of the upper part (2), and wherein the upper intermediate part (3) is a separate part, characterized in that the upper part (2) is connected to the upper intermediate part (3) and the upper intermediate part (3) is connected to the central part (1), preferably at longitudinal bars (6, 15, 20, 47), and that longitudinal bars (15) of the upper intermediate part (3) have a bent connection section (16) which is arranged approximately at a right angle to longitudinal bars (20) of the upper part (2) and is connected thereto.

2. Reinforcement cage for stairs manufactured as precast concrete elements, having at least one support bracket (38, 46), the reinforcement cage comprising reinforcement bars connected to each other, a lower part (4) for a lower support bracket (38, 46), a lower intermediate part (5), and a central part (1), wherein the lower part (4), the lower intermediate part (5), and the central part (1) comprise longitudinal bars (6, 31, 36, 50, 52) that are connected to one another via transverse bars (12, 22, 23, 34, 35), wherein the longitudinal bars (36) of the lower part (4) extend in or parallel to a main plane of the support bracket (38, 46) of the lower part (4), and wherein the lower intermediate part (5) is a separate part, characterized in that the lower part (4) is connected to the lower intermediate part (5) and the lower intermediate part (5) is connected to the central part (1), preferably at longitudinal bars (6, 31, 36, 50, 52), and that longitudinal bars (31) of the lower intermediate part (5) have a bent connection section (32) which is arranged approximately at a right angle to longitudinal bars (36) of the lower part (4) and is connected thereto.

3. Reinforcement cage according to claims 1 and 2, characterized in that the reinforcement cage comprises both the upper intermediate part (3) and the upper part (2) as well as the lower intermediate part (5) and the lower part (4), and that the central part (1) is connected to both the upper intermediate part (3) and the lower intermediate part (5).

4. Reinforcement cage according to any one of claims 1 to 3, characterized in that longitudinal bars (15, 31) of the upper and / or lower intermediate part (3, 5) are arranged parallel to and adjacent to longitudinal bars (6, 50) of the central part (1) and are connected thereto.

5. Reinforcement cage according to claim 1, characterized in that the longitudinal bars (15, 31) of the upper and / or lower intermediate part (3, 5) have, adjacent to the connecting section (16, 32, 52), an end (17, 33, 53) that is bent into a preferably U- or V-shaped configuration.

6. Reinforcement cage according to any one of claims 1 to 5, characterized in that at least one longitudinal bar (20, 36) of the upper part (2) and / or lower part (4), extending in or parallel to a main plane of the support bracket (24, 38, 45, 46) has a bent section (21, 37) that extends preferably at a right angle to the main plane or to the longitudinal bar (20, 36).

7. Reinforcement cage according to any one of claims 1 to 6, characterized in that the longitudinal bars (6) of the middle part (1) connected to the upper and / or lower intermediate part (3, 5) are arranged in a first plane, that further longitudinal bars (7) are arranged in a second plane which lies parallel to the first plane, and that the longitudinal bars (6, 7) of the first and second planes are connected via first connecting bars (10).

8. Reinforcement cage according to claim 7, characterized in that the first connecting bars (10) are connected to one another via transverse bars (12, 13) and are connected to the longitudinal bars (6, 7) via the transverse bars (12, 13).

9. Reinforcement cage according to claim 8, characterized in that second connecting bars (9) are provided, which are arranged with the first connecting bars (10) in an A-shaped manner and are connected at one end to a transverse bar (13) of the first connecting bars (10), and that the second connecting bars (9) are connected at the other end to a further cross bar (11) which rests slidably on longitudinal bars (6).

10. Reinforcement cage according to any one of claims 1 to 9, characterized in that at least one angled end (47, 50) is arranged on longitudinal bars (6) of the central part (1), which is connected to a longitudinal bar (15, 31) of an upper or lower intermediate part (3, 5), wherein the angled end (47, 50) is an extension of the longitudinal bar (6) or is connected thereto.

11. Reinforcement cage according to any one of claims 1 to 10, characterized in that at least one longitudinal bar (15, 47) of the upper part (2) or lower part (4) extending in or parallel to a main plane of the support bracket has a bent section (48) that is arranged parallel to a longitudinal bar (6) of the central part (1) and is connected thereto.

12. Reinforcement cage according to any one of claims 1 to 11, characterized in that at least some of the connections between the reinforcement bars are welded connections.

13. Device for manufacturing a reinforcement cage according to any one of claims 1 to 12, comprising a base surface (61) for longitudinal bars (6) of the central part (1) and at least one holder (63) for bars of the upper part (2) or lower part (4) and upper or lower intermediate part (3, 5) of the reinforcement cage, which can be pivoted and, if necessary, slid relative to the base surface (61), wherein the holder (63) has a first support surface (65) for a connecting section (16, 32, 52) of a longitudinal bar (6, 15, 31) of the upper or lower intermediate part (3, 5) and a second bearing surface (66), preferably arranged at a right angle thereto, for a longitudinal bar (20, 36) of the upper part (2) or lower part (3), which extends in or parallel to a main plane of a support bracket (24, 38, 45, 46) of the upper part (2) or lower part (4), and wherein the second support surface (66) is arranged to be displaceable and / or pivotable relative to the first support surface (65).

14. Device according to claim 13, characterized in that the holder (63) comprises a third support surface (67) for a bent section (21, 37) of the longitudinal bar (20, 36) of the upper part (2) or lower part (4) extending in or parallel to a main plane of a support bracket (24, 38, 45, 46), and that the third support surface (67) extends preferably at a right angle to the second support surface (66).

15. Device according to claim 14, characterized in that the third support surface (67) is arranged such that it can be displaced and / or pivoted relative to the second support surface (66).

16. Device for manufacturing a reinforcement cage according to any one of claims 1 to 12, comprising a base surface (61) for longitudinal bars (6) of the central part (1) and at least one holder (64) for bars of the upper part (2) or lower part (4) and upper or lower intermediate part (3, 5) of the reinforcement cage, which can be pivoted and, if necessary, slid relative to the base surface (61), wherein the holder (64) comprises a first support surface (75) for a longitudinal bar (54) extending in or parallel to a main plane of a support bracket (24, 38, 45, 46) of the upper part (2) or lower part (4), and a second support surface (76) arranged preferably at a right angle thereto for a bent section (56) of a longitudinal bar (54) of the upper part (2) or lower part (4) extending in or parallel to a main plane of a support bracket (24, 38, 45, 46), and wherein the first and second support surfaces (75, 76) are arranged so as to be displaceable and / or pivotable relative to one another.