DE8804708U1 - Reinforcement support - Google Patents

Description

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The invention relates to a reinforcement for concrete walls with longitudinal reinforcement bars.

Reinforcing concrete walls is very labor-intensive, regardless of whether the walls are straight or curved, as found in silos and sewage treatment plants. The work of reinforcing is generally carried out by experienced reinforcing workers who are grouped together in piecework groups and provided by subcontractors.

Attempts are also being made to reduce the intensive reinforcement work by using steel mesh to reinforce the walls. This significantly speeds up the reinforcement work.

The disadvantage of this type of reinforcement, however, is that structural steel mesh is significantly more expensive than normal round iron. In addition, the overlaps, which are usually necessary on two sides of the mesh, make up a significant percentage of the steel costs and thus increase the price of the already more expensive reinforcement mesh even further.

Another significant disadvantage of using reinforcement crews is that the formwork work must be interrupted until the reinforcement crews have finished their work.

Furthermore, part of the formwork must always be assembled before reinforcement can be carried out. This means that the formwork cannot be moved as quickly, which is particularly noticeable if the formwork is to be used more often.

The aim of the invention is to create a reinforcement for concrete walls that can be produced relatively quickly even by inexperienced workers and in which the structural steel used is used optimally.

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This is achieved according to the invention by means of a support with at least two uprights whose distance from each other is approximately
the width of the concrete wall minus the Befcon cover on both sides* which have supports for the longitudinal reinforcement bars and which are connected to each other by cross bars
are ,

In a container, for example a silo, the ring reinforcement is formed by normal round steel, whereby the round steel
are attached to the reinforcement beams. On the round steel
In turn, the steel mesh is attached, which serves as
standing reinforcement dieivt*

In the case of a tower, it would be the other way round * because here the

standing reinforcement is the main reinforcement. In a container, j

which therefore the steel mesh is used standing, while it;

be used lying down in a tower. j

It is advantageous that the uprights are angle irons i and the brackets are formed by slots in at least one of the webs I of the angle iron. i

In order to improve the stability of the reinforcement beams, it is intended that the cross bars run in a lattice-like manner.

It is advantageous that between the reinforcement beams
Structural steel meshes are mounted, the main reinforcement of which is vertical
is aligned.

Below you will find various examples of the
Invention based on the figures of the accompanying drawings
described in detail.

In order to ensure a secure hold of the reinforcing bars, &igr;

The slots should preferably be angled or slanted. <

An embodiment of the invention provides that the uprights

made of round iron with welded brackets.

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Fig ^. 1 shows a schematic plan view of a section of a reinforcement area, Fig _. 2 shows a diagram of a section of a reinforcement according to the invention and Figs _. 3 to 5 show diagrams of the reinforcement supports according to the invention _{. 4}

When erecting a concrete wall, KWiSi anchoring irons are concreted into the ground at specific intervals, which are usually between 1 m and 2 ₄ 5 m, and also at a distance from the formwork to be installed. The distance between these anchoring irons corresponds approximately to the distance between the external reinforcement and the internal reinforcement. In order to keep the distances between the anchoring irons exact, they can also be welded together.

When the ground has become hard enough to be reinforced, the reinforcement supports 1 according to the invention are attached to the studs protruding from the ground.

If a formwork has already been set up before reinforcement is carried out, these reinforcement supports 1 can be attached to the formwork at the top *

However, it can also be reinforced without having to assemble a formwork side beforehand. In this case, the reinforcement beams 1 are set up with the spirit level and wedged with the wedge irons. The connection can also be made in another way, for example using rope clamps. The advantage of the wedge connection is primarily the low price and the speed with which it can be handled.

The reinforcement beams 1 according to the invention have at least two uprights 2, which have brackets for structural steel on the side. The brackets can be angled slots 4 as in the embodiment according to Fig. 3, or welded brackets 5 as shown in Fig. 4. The uprights 2 are preferably fastened by means of wedges to the plug-in irons protruding from the concrete floor.

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When the necessary reinforcement supports 1 are mounted ₍ the horizontal reinforcement is inserted^ usually the outer reinforcement first. The horizontal reinforcement is formed in the example shown by separate round steels 6*

In order to ensure that the round steel bars 6 are held in the reinforcement beams 1, the free tabs 7 or the brackets 5 can then be bent so that they clamp the round steel bars 6.

The standing reinforcement, which in the example is formed by a structural steel mat 8, is now attached to the round bars 6.

Overlapping the structural steel mesh or mats in the longitudinal direction of the wall is naturally not necessary.

A further advantage of the reinforcement according to the invention is that the distance between the reinforcement supports can be selected in such a way that the reinforcement supports can be included in the static calculation.

If one side of the wall is reinforced, pre-tension cables can be pulled into brackets made for the gate.

The next step is to reinforce the other side.

This new type of reinforcement can also be carried out by less experienced people. For example, the people who are responsible for assembling the formwork can also create the reinforcement.

As already mentioned, the reinforcement supports can be made of angle iron (Fig. 3) or round bars. If the uprights are angle iron, the slots 4 are advantageously located in the outer web.

The distance between the slots 4 and the brackets 5 corresponds to the distance between the separate round bars.

The reinforcement beams 1 can also be connected to the dowels by welding on site. The individual uprights 2 of the reinforcement beams are connected to one another by crossbars 9. Crossbars 9 are advantageously arranged in a lattice-like manner. The fields between the crossbars 9 are triangles. The crossbars 9 can be made of structural steel, but also of another material. In general, the length of a reinforcement beam 1 will correspond to the height of the wall to be concreted, but several reinforcement beams can also be put together, for example when reinforcing a very high wall, or when the reinforcement beams are mounted horizontally as in tower construction.

Lindau, 6 April 1988 For Otto Heinzle

The representatives:

Claims (7)

t· ··· ·· ■■ 4 ■ Protection claims: 1. Reinforcement for concrete walls with longitudinal reinforcement bars, characterized by reinforcement supports (1) with at least two uprights (2), the distance between which corresponds approximately to the width of the concrete wall minus the concrete cover on both sides, which have holders for the longitudinal reinforcement bars and which are connected to one another by cross bars (9). 2. Reinforcement according to claim 1, characterized in that the uprights (2) are angle irons and the holders are formed by slots (4) in at least one of the webs of the angle iron. 3. Reinforcement according to claim 2, characterized in that the slots (4) are angled. 4. Reinforcement according to claim 2, characterized in that the uprights (2) are formed from round iron with welded-on brackets (5). 5. Reinforcement according to claim 1, characterized in that the transverse bars (9) extend in a fan-shaped manner. 6. Reinforcement according to claim 1, characterized in that the longitudinal reinforcement bars are formed by separate iron bars (6) and that the structural steel mats (8) are attached to the iron bars (6). 7. Reinforcement according to claim 1, characterized in that the uprights (2) are fastened to the studs protruding from the concrete floor by means of wedges. 8« Reinforcement according to claim 1, characterized in that structural steel mats (8) are mounted between the reinforcement bars, the main reinforcement being aligned vertically. Lindau, 6.4.1988 for ¹ QfJi&bgr; Heinale _r - L 4 i » II