DE2016503A1 - Reinforcement consisting of welded wire mesh for angled concrete components - Google Patents

Description

DIPL.-ING. C. STOEPEIi · DaPL.-IITO. W. GOLLWITZER DIPL.-ING. P * W. MOLL

674 LANDAU / PALATINATE AM SCHÜTZE NHOF

POST CHECK: 07 IiVDWI (SSHAFKV I7III BANKl DKtTTSCHC BANK Θ74

April 6, 1970

Bau-Stahlabric GmbH., Düsseldorf-Oberkassel

"Reinforcement consisting of welded wire mesh for angled components made of concrete"

The invention relates to one made of welded wire mesh Existing reinforcement for angled components, mainly for a symmetrically designed angle retaining wall made of concrete.

Angular retaining walls are typical designs for reinforced concrete construction. They consist of a wall base on which in the middle or the actual retaining wall is placed off-center. The production of such angular retaining walls usually takes place in the form that first the wall base is made with a corresponding reinforcement cage, with connecting iron for the rising parts of the wall are concreted in and that the wall reinforcement for these rising parts installed and these parts are concreted by yourself.

This interruption of the rising reinforcement between the base of the wall and the rising part of the wall not only creates

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an increased consumption of reinforcing steel, but also of working time to install the same. It doesn't matter whether, as has already become known, welded wire mesh is used for the foot of the wall alone or for the rising parts of the retaining wall used as reinforcement.

The object of the invention is to find a way to reduce this additional material and labor cost the production of central angle retaining walls made of concrete avoid.

The invention solves this problem in that the intended for the reinforcement of the wall base and the rising walls Reinforcement parts from a single flat reinforcement mesh by folding the longitudinal bars several times in the same direction are made. Appropriately, a part of the reinforcement connected to the wall head runs to the both outer sides of the wall to the bottom of the wall base and further on the outside of the base, while the ends of the Reinforcement parts run out in the area of the wall base, whereby the individual reinforcement parts both in the area of the bottom penetrate the foot of the wall as well as at the foot of the wall.

Additional assembly rods can be arranged in the area of the reinforcement cages for the base of the wall.

The subject of the invention is also a reinforcement mat for the production of such a reinforcement and is thus characterized

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draws that the distance of the last cross bar inside Mat area from the inner edge cross bar is many times larger than the predominantly equal distance of the remaining cross bars in the inner mat area. -

With this reinforcement mesh, the longitudinal bars and / or cross bars be designed as multiple bars or have different cross sections, and the edge cross bars have a clear distance from each other that is smaller than the clear distance of the other cross bars, however at least so large that a perfect concrete coating is guaranteed.

The invention finally also includes a method for producing such a reinforcement, in which First, the two cross-bar-free parts of the longitudinal bars of a flat reinforcement mesh through three times one after the other Bended inwards to form basket-like structures, in which the edge transverse bars form the flat inner part of the mat are adjacent and then the inner mat parts around the center line S-S by approximately 90 ° in the same sense, how the basket-like edge parts are bent inwards, the edge parts penetrating one another. The main advantage the reinforcement according to the invention for an angle retaining wall made of concrete is that the entire reinforcement, so the reinforcement parts for the base of the wall, as well as those for the rising wall parts can be made from a single reinforcement mesh, whereby any joint of the reinforcement

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There is no need for bars between the base of the wall and the rising wall sections.

The invention is described below with reference to the exemplary embodiments shown in the accompanying drawings explained in more detail. Show it"

Fig. 1 is a plan view of a to be used for producing the reinforcement according to the invention Reinforcement mesh, the

FIGS. 2 a to h show the individual phases of the manufacture of the reinforcement in a schematic representation in section and

Fig. 3 shows a modified embodiment of the invention Reinforcement.

To produce the reinforcement according to the invention for an angled retaining wall, a flat reinforcement mat is used assumed, as shown in Fig. 1 in plan view. The mat consists of longitudinal bars 1 and cross bars 2. The cross bars 2 are only arranged in the inner area of the relatively long mat. There are areas towards the edges without cross bars the ends of the longitudinal bars are combined at the outermost edges by edge cross bars 3, which are expediently provided in pairs.

In order to arrive at a reinforcement according to the invention, as shown in FIGS. 2 a to h, individual bending processes are performed carried out, which expediently follow one another in the order shown. So first of all,

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like Pig. 2 a shows, on a mat edge a part 4 downwards, i.e. bent to the side on which the cross bars and 3 are located. Then at a short distance from the bending point 5 completed another bend at 6, on which again at a greater distance there is a bend at 7.

In this way, an almost closed reinforcement cage is created in which the edge cross bars 3 are the flat part of the inner mat area are adjacent. The same bending processes are then carried out on the opposite side of the mat carried out. The result is then the form of reinforcement shown in FIG. 2 f.

Finally, in the area of the center line S two approximately spaced apart from the upper wall thick bends 3, 9 made, in particular in the Making the bend at 9 causes the at both Reinforcement cages from the mesh areas free of cross bars penetrate each other (Fig. 2h). In the resulting reinforcement for the base of the wall, additional horizontal Rods 10 or 11 can be arranged subsequently.

The manufacture of this reinforcement can either be done in the manufacturing plant by way of prefabrication or directly on the Construction site. The bends can be carried out with any commercially available bending machine. Of special The advantage is that all bends run in the same direction, so that it is not necessary to turn the mat during the bending process.

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Another embodiment of the reinforcement according to the invention is shown in FIG. In contrast to the reinforcement structure shown in FIG. 2h, these are the edge transverse bars 3 containing mat edges bent upwards. This is precisely in the area of the restraint of the rising Wall parts in the wall foundation a better anchoring of the reached the bars absorbing the clamping moments.

The mat shown in Fig. 1 represents in the transverse direction represents only a section of a reinforcement mat. The cross bars 2 and 3 can also be arranged in greater lengths and are connected to further longitudinal rods 1. This allows the entire reinforcement for a very long retaining wall to be created will.

Even if the reinforcement according to the invention is to be used primarily for a two-sided angled retaining wall, it is not, however, restricted to this. The same inventive idea can also be used for other angled concrete components. For example, for retaining walls that only have a one-sided foot or for wall-like girders with cantilever plates. In these cases, however, a reinforcement mesh adapted to the purpose must be assumed, which is to be bent according to the requirements.

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Claims (5)

- 7 claims: I l.J Reinforcement consisting of welded wire mesh for angled Components, preferably for a symmetrically designed, angular retaining wall made of concrete, characterized in that, that the reinforcement parts intended for the reinforcement of the base of the wall and the rising wall from a single one flat welded wire mesh are produced by folding the longitudinal bars several times in the same direction. 2.) Reinforcement according to claim 1, characterized in that each of the reinforcement connected to the wall head a part on the two outer sides of the wall to the bottom of the wall base and further on the outside of the base runs and the ends of the reinforcement parts run out in the area of the wall base, whereby the individual reinforcement parts penetrate both in the area of the underside of the wall base and at the base of the wall. 3.) Reinforcement according to claim 1 or 2, characterized in that that additional mounting rods (10) are arranged in the area of the reinforcement cages for the wall base. 4 ..) Reinforced wire mesh made of intersecting and at their intersection points interconnected longitudinal and transverse bars for the reinforcement according to claims 1 and 2, characterized in that that the distance of the last cross bar (2) in the inner mat area from the inner edge cross bar (3) is many times greater is as the predominantly the same distance between the remaining cross bars (2) in the inner mat area. 109845/0560 5.) welded wire mesh according to claim 4, characterized in that that the longitudinal bars (1) and / or the transverse bars (2) as Multiple bars are formed or have different cross-sections, and the edge cross bars (3) have a clear Have a distance from one another that is smaller than the clear distance between the remaining cross bars (2), but at least as large as that a perfect concrete coating is guaranteed. ™ 6.) Method for producing reinforcement according to claim 1, with mats according to claims 4 or 5, characterized in that the two crossbar-free parts of the Longitudinal bars (1) of a flat reinforcement mat one after the other by angling them inwards three times to form basket-like structures are bent, in which the edge cross bars (3) are adjacent to the flat inner mat part and that then the inner mat parts around the center line S-S by approximately 90 ° in the same sense as the basket-like edge parts fc are bent inwards, the edge parts being mutually exclusive penetrate. 109845/0560