METHOD OF REINFORCING A REINFORCED CONCRETE COMPONENT

Abstract

The present invention relates to a method of producing an individual reinforcement of a future reinforced concrete component.

Claims

1. A method of producing an individual reinforcement of a reinforced concrete component (1) made of predominantly prefabricated reinforcement elements (4) at least having the following steps: reading in a first reinforcement drawing of the future reinforced concrete component (1) based on reinforcing steel bars (3) having a planar basic reinforcement; converting the planar basic reinforcement into a modified basic reinforcement (2), which has reinforcing steel bars that are not limited in length in such a way that no overlapping of bars results within the basic reinforcement; calculating a plurality of individual reinforcement elements (4) from the modified basic reinforcement (2) and the first reinforcement drawing, also by changing the individual reinforcing steel bars (3) in terms of their number, shape, length, diameter, position, steel grade as well as with specification of a laying order for the creation of an individual reinforcement drawing.

2. The method as claimed in claim 1, further having one or more of the following steps: minimizing the number of reinforcement elements (4) of the individual reinforcement drawing; fixing an individual reinforcement element (4) in terms of type and arrangement of the reinforcing steel bars (3) in the individual reinforcement drawing; generating a machine data set for producing at least one calculated individual reinforcement element (4); transferring the machine data set to a production machine and producing at least one individual reinforcement element (4); producing the individual reinforcement on-site on a construction site.

3. The method as claimed in claim 1 or 2, in which the individual reinforcement elements (4) are selected from the uniaxial reinforcement meshes, in particular the roll-out uniaxial reinforcement steel bar meshes, the biaxial reinforcement meshes, the edge cages, the connection cages, the welded reinforcing cages and the individual reinforcing steel bars.

4. The method as claimed in claim 1, 2 or 3, in which at least one reinforcement element (4) is modified in comparison with the modified basic reinforcement with regard to presence, arrangement, length and diameter of at least one reinforcing steel bar (3), in particular with the addition of sacrificial or supplementary material (7).

5. The method as claimed in one of the preceding claims, in which the arrangement of a mounting element (5) of the reinforcement element (4) is changed within the reinforcement element (4).

6. The method as claimed in one of the preceding claims, in which the first reinforcement drawing is read in electronically, wherein this is in particular a quantity-optimized and product-neutral first reinforcement drawing.

7. The method as claimed in one of the preceding claims, in which recesses (12) are provided within a roll-out reinforcement element, wherein additional reinforcing steel bars (3′) are inserted by computer in edge regions of the reinforcement meshes bordering the recesses (12).

8. The method as claimed in one of the preceding claims, in which reinforcement meshes and edge cages are connected during assembly in such a way that reinforcing steel bars (3) of reinforcement meshes overlap into the edge cages.

9. The method as claimed in one of the preceding claims, in which mounting elements (5) of the reinforcement meshes are separated during assembly at marked points.

10. The method as claimed in one of the preceding claims, in which additional bars are added for bars of the basic reinforcement (2), which cannot be integrated into prefabricated reinforcement elements (4).

Description

[0025] One embodiment of the invention is outlined below using several figures, wherein in the figures:

[0026] FIG. 1: shows in detail in three partial figures a), b) and c) a schematic reinforcement drawing before and after application of the method according to the invention and

[0027] FIG. 2a-d: shows in detail details of redesigned individual reinforcement elements.

[0028] FIG. 1 schematically shows in three partial figures a reinforcement drawing for a component before and after application of the method according to the invention.

[0029] Partial figure a) shows the original, preferably quantity-optimized and product-neutral reinforcement drawing of an outlined reinforced concrete structure 1 coming from the structural engineer, which reinforced concrete structure 1 is based on reinforcing steel bars 3 and has a whole row of overlaps 6. These are arranged arbitrarily as a function of the length of the underlying reinforcing steel bars 2 used. Spacers and other parts of the reinforcement lying below or above the drawing plane are not shown. A layer of the planar basic reinforcement alone is shown, which is often modified to a greater extent by the method according to the invention than the mentioned, non-illustrated parts of the reinforcement.

[0030] Partial figure b) represents the modified basic reinforcement produced computationally from the original first reinforcement drawing in the first step of the method according to the invention, in which reinforcing steel bars 3 with unlimited lengths are used computationally such that a completely overlap-free modified basic reinforcement is calculated.

[0031] Partial figure c) schematically shows a plurality of reinforcement elements calculated individually for each construction site and produced from the modified basic reinforcement via the method and according to the invention, in this case two reinforcement elements 4, 4′. According to the invention, this achieves simpler installation at the cost of a greater amount of material. Of course, considerably more than the two illustrated reinforcement elements 4, 4′ are actually calculated.

[0032] The reinforcement elements 4, 4′ calculated in this way respectively have reinforcing steel bars 3 arranged at certain distances and linked by mounting elements 5. In order to achieve a sufficient static effect despite separation, supplementary material 7 in the form of extensions of the reinforcing steel bars 3 was inserted into end regions of a further reinforcement element 4′ adjoining the reinforcement element 4, resulting in overlaps 6 of the reinforcing steel bars of the two reinforcement elements 4, 4′. The mounting straps 5 secure a stable distance of the reinforcing steel bars 3 of the reinforcement elements 4, 4′ and at the same time prevent spread of ends of reinforcing steel bars 3, which would cause undesirable lateral or vertical forces. It can also be seen that the strap 5′ of the first reinforcement element 4 was displaced away from the end region along the longitudinal axis of the reinforcing steel bars 3 so that there is no vertical stacking of the two elements 4, 4′. In the example shown, the laying order is thus also set as initially the element 4′ has to be unrolled, followed by element 4 in overlapping order. It can also be seen that the reinforcing steel bars 3 of the element 4 in comparison to those of the element 4′ were displaced by a bar diameter so that no collision situation arises. The method according to the invention automatically carries out such a procedure. It can also be seen that in addition the reinforcing steel bars 3 of the element 4 were extended to produce an overlap 6. This overlap was not present in the original reinforcing drawing in accordance with partial figure a); instead of a continuous, ordered joint, there were a plurality of “wildly” distributed joints.

[0033] FIG. 2 shows in detailed FIGS. 2a) to 2d) details of redesigned individual reinforcement elements. The redesign occurs in particular such that undisturbed special areas are identified from the modified basic reinforcement 2 and appropriate reinforcement elements are produced for these, which can be unrolled or laid without disturbance and which are supplemented with additionally produced and specially laid reinforcements in the structurally disturbed areas. FIG. 2a schematically shows an exemplary reinforcement drawing produced with the method according to the invention for a reinforced concrete component 1. The reinforcement was implemented based on a reinforcement element 4 in the form of a uniaxial reinforcement mesh, which has reinforcing steel bars 3 spaced apart which are linked to one another by mounting straps 5. A disturbance 9 is taken into account such that a strap 5′ was displaced from an original relative position illustrated with dashed lines to the position illustrated with solid lines in order to shorten the free ends 3′ of the reinforcing steel bars 3 and thus guarantee installation. The top two reinforcing steel bars 3 were also shortened to leave out an area disturbed by the area 9 and maintain the ability to unroll.

[0034] FIG. 2b schematically shows a further reinforcement element 4 with mounting bars 5 and reinforcing steel bars 3. The otherwise free ends 10 of shorter bars 3 are extended by the supplementary material 7 in order to be attached to the next mounting bar 5 and thus to at least two mounting elements 5. FIG. 2c shows part of a prefabricated, roll-out reinforcement element 4. The reinforcement element 4 is provided for installation in areas in which welding is not allowed due to not exclusively static load, or in which a welded reinforcing steel bar 3 can no longer be effectively evaluated from the welding point for the structure analysis. A weld line 11 intersects the reinforcing steel bars 3, which therefore end there according to the modified basic reinforcement. In order to keep these free ends 10 layable, a supplementary material 7 illustrated with dashed lines is added in order to enable welding to the closest mounting strap 5. This welding is, however, not statically relevant as the statically acting areas, illustrated with solid lines, of the bars 3 are not affected. The mounting element 5 was therefore likewise extended into this area.

[0035] FIG. 2d schematically illustrates a section of a prefabricated reinforcement element 4, which has a recess 12, for example a ceiling hole, within the surface it spans. In order to be able to lay the reinforcement element 4 over this disturbance, the reinforcing bars 3 are shortened in its area. According to the invention, supplementary material 7 in the form of additional reinforcing steel bars 3′ has been added to transfer forces in the region of the recess 12 and additionally extended for attachment to the mounting straps 5. Thus, according to the invention, a reinforcement based on a prefabricated reinforcement element 4 is in turn made possible by adding supplementary material 7.

[0036] A reinforcement element, in which the diameter of reinforcing steel bars was reduced and its distance decreased is not shown, nor is one, in which the diameter of reinforcing steel bars was increased and the distance of the reinforcing steel bars was increased. Such adjustments are also according to the invention, as is an adjustment of the steel quality.

REFERENCE LIST

[0037] 1 reinforced concrete component [0038] 2 modified basic reinforcement [0039] 3 reinforcing steel bar [0040] 3′ additional reinforcing steel bar [0041] 4 reinforcement element [0042] 4′ further reinforcement element [0043] 5 mounting element (mounting strap) [0044] 6 overlap [0045] 7 supplementary material [0046] 8 periphery [0047] 9 recess [0048] 10 free end [0049] 11 weld line [0050] 12 recess