EP2024586B1 - Box-shaped retainer for reinforcing rods - Google Patents

Abstract

The device forms at least one inner chamber bounded by two longitudinal side regions and a longitudinal floor, whereby the floor and/or side regions are provided with transverse profiling (2,3). The protection element is made in one piece with its side regions and its floor from a flat material with the profiling, preferably by bending transversely to the profiling.

Description

The invention relates to a box-like storage element according to the preamble of claim 1.

Reinforcement connections with box-like storage elements have been known for many years and are generally used to produce a connecting reinforcement between a first concrete component and a subsequent concrete component. The box-like storage element and on the outside of the bottom of this storage element protruding connection elements or portions of these connection elements are integrated into the first created concrete component. After completion of this concrete component, then e.g. Bent and projecting from the open storage element connection elements or sections of connection elements are integrated into the subsequent concrete component. The concrete of this subsequent concrete component also fills the interior of the storage element, so that it is completely embedded in the concrete between the two concrete components.

A box-like storage element is known (US Pat. DE 20 2004 011 238 U1 ), in which the bottom of the storage element is profiled transversely to the longitudinal extent of this Verwahrungselementes to achieve after completion of the connected concrete component by this completed by the concrete of the two concrete components profiling a shear gearing in the direction of the longitudinal extension of the storage element. The well-known box-like storage element is made of at least three separate components, namely a strip-like, the bottom of the storage element forming and profiled with the blank from a flat material and two other strip-shaped, the side panels forming blanks, which also consist of the flat material and with the profiled blank forming the bottom are connected to the storage box by welding or gluing. The preparation of this known storage element is complex.

Also known is a device for insertion into a formwork for a concrete part ( DE 39 26 141 A1 ), with a box-like, closable by means of a lid, us metal existing storage element for probation steels, wherein at least the side walls and the bottom are profiled and made of a one-piece blank. The document proposes to produce the storage element of a profiled sheet, in particular a trapezoidal sheet in such a way that the bending lines guer or perpendicular to profiling of the side walls and the bottom. In order to obtain no buckling in the bending lines during bending of the profile sheet, the document proposes that the profiled sheet has cutouts which reduce the moment of resistance of the profile sheet and thereby bulges are avoided.

The object of the invention is to show a box-like storage element, which can be made particularly simple and inexpensive. To solve this problem, a storage element according to the patent claim 1 is formed.

A method for producing such a storage element is specified in claim 12.

Further developments of the invention are the subject of the dependent claims.

In the case of the storage element according to the invention, the profiling is preferably dovetail-shaped. In this way, during the production of the storage element, a particularly simple bending or flattening of the flat material having this profiling transverse or perpendicular to the profiling is possible, in that e.g. at the bending areas, i. At the transitions between the bottom and the side parts of the storage element, the profiling is pressed flat during bending or laid flat. In the dovetail-shaped profiling, this is possible with reduced effort.

Fig. 1

in vereinfachter perspektivischer Teildarstellung ein profiliertes Flachmaterial, beispielsweise ein profiliertes Stahlblech zur Herstellung eines kastenförmigen Verwahrungselementes gemäß der Erfindung;

Fig. 2

ein kastenförmiges Verwahrungselement in Seitenansicht, zusammen mit einem der in diesem Verwahrungselement mit einer Teillänge aufgenommenen Ansch lusselementen;

Fig. 3

in vereinfachter Darstellung einen Schnitt durch das Verwahrungselement der Figur 2 entsprechend der Schnittlinie I - I;

Fig. 4

Verwendung des Verwahrungselementes der Fig. 2;

Fig. 5

in vereinfachter Teildarstellung und in Seitenansicht ein kastenförmiges Verwahrungselement gemäß einer weiteren Ausführungsform der Erfindung;

Fig. 6

in vergrößerter Darstellung einen Schnitt durch das Verwahrungselement der Figur 5 entsprechend der Schnittlinie II - II.

The invention will be explained in more detail below with reference to the figures of exemplary embodiments. Show it:

Fig. 1

in a simplified perspective partial representation of a profiled flat material, such as a profiled steel sheet for producing a box-shaped storage element according to the invention;

Fig. 2

a box-shaped storage element in side view, together with one of the recorded in this storage element with a partial length Ansch lusselementen;

Fig. 3

in a simplified representation of a section through the storage element of FIG. 2 according to the section line I - I;

Fig. 4

Use of the custody of the Fig. 2 ;

Fig. 5

in a simplified partial view and in side view of a box-shaped storage element according to another embodiment of the invention;

Fig. 6

in an enlarged view a section through the storage element of FIG. 5 according to the section line II - II.

In the figures, 1 is a steel sheet, which is provided with a dovetail-shaped profiling, which consists of a plurality of profile sections 2 and 3, each adjoining each other and have a dovetailed cross-section and are open to opposite surface sides of the sheet 1, namely in the presentation of the FIG. 1 The height H of the profiling, ie the distance between the plane of the bottom surfaces of two adjacent profile sections 2 and 3 is substantially smaller in the illustrated embodiment than the width B, the profile sections 2 and 3 each have at their bottom.

The FIGS. 2 and 3 show a box-like storage element 4 which, using the profiled steel sheet of the FIG. 1 is made by bending, by bending or bending perpendicular to the longitudinal extent of the profile formed by the parallel profile sections 2 and 3. The storage element 4 accordingly has a U-shaped cross-section with two relatively narrow, one longitudinal side of the storage element 4 forming legs 5 and with a bottom of the storage element forming the leg connecting yoke section 6. Both legs go to their yoke section 6 remote edge in a projecting beyond the outside of the legs 5 flange 7 via.

By shaping or bending of the steel sheet 1 in the storage element 4, the profiling of the steel sheet 1 is at least largely flat pressed on the transitions 8 between the respective leg and the yoke portion 6 forming bending, ie the steel sheet 1 is partially multilayered at these transitions There, where there were originally transitions between the profile sections 2 and 3. Furthermore, the profiling of the steel sheet is also on in the FIG. 3 The upper edge of the legs 5 and pressed flat on the outwardly projecting flanges 7, so that there also partially the steel sheet 1 is present in several layers. Otherwise, the profiling of the steel sheet 1 is maintained on the legs 5 and also on the yoke 6 between the flange 7 and the respective transition 8 or between the two transitions 8, in such a way that the profiling perpendicular or transverse to the longitudinal axis L of the storage element 4 extends.

The resulting in bending and forming the flanges 7 by flattening the profiling between the respective flange 7 and the transition 8 on the legs or between the two transitions 8 on the yoke section 6 excess material leads to bulges and / or corrugations in the profiling of the both longitudinal sides or legs 5 and also at the bottom or yoke portion 6 of the storage element, as shown in the FIG. 3 with 5.1 and 6.1 is indicated. Furthermore, some structuring also remains at the bending lines or transitions 8 extending in the longitudinal direction L as a result of the only partially multi-layered formation.

The box-like storage element 4 serves to partially receive rebar or connection elements 9, each of which is formed of a length of a structural steel, in the illustrated embodiment bent in a U-shape such that each connection element 9 has two legs 10 and one of these Leg connecting yoke 11 forms. The legs 10 are each angled and thereby in turn form two, in the illustrated embodiment, at right angles to each other arranged leg sections 10.1 and 10.2. The leg sections 10.1 are received in the interior of the storage element 4. The leg sections 10.2 are guided through the yoke section 6 or bottom of the storage element 4 to the outside and in each case in the yoke 11 over. At the two ends, the storage element 4 is closed at the end by a suitable closure element 12. Furthermore, the storage element 4 is closed at the yoke portion 6 opposite side, for example, by a removable cover thirteenth

In the case of use, the storage element 4 is concreted with the connection elements 9 in a known manner in a concrete component 14, so that after demoulding the closure 13 having side of the storage element 4 is exposed and the leg portions 10.1 of the incorporated in the concrete component 14 connection elements 9 bent and as connection reinforcement can be used for the connection of another concrete component, the concrete then completely fills the interior of the open storage element 4. Due to the described profiling of the Verwahrungsefementes especially at its bottom or yoke section 6 perpendicular or transverse to the longitudinal axis L, especially the thrust transmission between the adjoining concrete components in the area of the fully embedded in concrete storage element 4 is substantially improved.

The FIGS. 5 and 6 show in representations similar to the FIGS. 2 and 3 as a further embodiment, a storage element 4a, which in turn is produced in one piece by permanent deformation of a profiled steel sheet, for example the profiled steel sheet 1, with profiles extending transversely or perpendicularly to the longitudinal extension of the storage element 4a. The Storage element 4a differs from the storage element 4 essentially only in that the two perpendicular to the profiling longitudinal sides of the steel sheet are only slightly angled at 8a, so that instead of the legs 5 edge regions or flat legs 5a are obtained such that the distance the two legs 5a to the open side of the flat trough-like storage element 4a increases. The planes of the legs 5a enclose an angle greater than 90 ° with each other, which opens towards the open side of the storage element 4a. On the legs 5a, the profiling of the steel sheet 1 is flattened, so that the steel sheet 1 is present folded several layers on the legs 5a.

In order to provide the interior space required for receiving the leg sections 10.1 of the connection elements 9, the longitudinal closure element 13a is box-like and with its open side facing the storage element 4a fixed thereto, so that the opening edge of the closure element 13a abuts against the inner surface of the storage element 4a. Preferably, the closure element 13a is also designed so that it also causes the frontal closure of the storage element 4a. The closure element 13a is held by at least one band or strap-like holding element guided around the closure element 13a and the outside of the storage element 4a for example several times, as shown in FIG FIG. 6 is indicated by 15. This holding element is for example a belt, as it is used for packaging or for belting products for storage and / or transport. The application of the holding elements 15 can be done in a particularly simple manner with existing Umgurtungs- or packaging machines. In order to achieve the required sealing between the edge of the box-like closure element 13a and the storage element 4a, in particular also in the region of the leg 5a folded in multiple layers by flattening of the profiling, a sealing material 16 is provided between the edge of the closure element 13a and the storage element 4a is attached for example by spraying or by gluing the storage element 4a and / or on the edge of the closure element 13a. The box-like storage element 13a is made of plastic, for example.

The use of the storage element 4a is carried out in the same way as described for the storage element 4, i. the storage element 4a is inserted into the formwork used for the construction of the first erecting concrete component so that the leg sections 10.2 and yoke sections 11 are embedded in the concrete of the concrete component and the box-like closure elements 13a is accessible after demoulding the concrete component. After bending of the leg sections 10.1, these can be embedded in the concrete of the subsequent concrete component.

The invention has been described in exemplary embodiments. It is understood that changes and modifications are possible without thereby departing from the inventive idea underlying the invention.

For example, it is also possible to design the connecting elements 9 differently than described above, for example with connecting elements in the form of rope pieces which form eg closed loops and / or are formed with sleeves or end pieces anchoring in the concrete with a larger diameter compared to the rope diameter , Furthermore, it is also possible to provide instead of the connection elements 9 in the bottom of the storage element 4 threaded sockets on which then threaded sections in the two adjoining concrete components to be embedded connecting elements or their sections can be fastened by screwing, etc.

LIST OF REFERENCE NUMBERS

1

sheet steel

2, 3

profile section

4, 4a

storage element

5, 5a

leg

6

yoke

7

flange

8, 8a

Transition between leg 5 and yoke section

9

connecting element

10

leg

10.1, 10.2

leg portion

11

yoke

12

front-side closure element

13, 13a

longitudinal closure element

14

concrete component

15

Holding strap or retaining element

16

poetry

Claims (12)

1. Box-type flashing element (4) for joint reinforcements for producing concrete connections with shear engagement wherein the flashing element (4) forms at least one inner compartment which is defined by two lateral regions (5) each extending in the longitudinal direction (L) of the flashing element and by a base (6) which likewise extends in the longitudinal direction (L) of the flashing element, and wherein the base (6) and/or the lateral regions (5) is/are provided with a profiled section (2,3) extending transversely to the longitudinal direction (L) of the flashing element (4, 4a), wherein the flashing element (4, 4a), with its lateral regions (5, 5a) and its base (6), is produced as a single component from a flat material (1) comprising the profiled section (2, 3), preferably through bending transversely or vertically in relation to this profiled section (2, 3), characterised in that the flashing element (4, 4a) is produced through bending transversely or vertically to the profiled section (2, 3) of the flat material (1) in such a way that the profiled section is pressed flat at at least the transitions (8) between the lateral regions (5) and the base (6) through the bending operation, but otherwise the profiled section is maintained at the base (6) or at the side parts (5, 5a) or is pressed flat at the side parts (5, 5a) or at an edge of the side parts (5) remote from the base (6).
2. Flashing element according to claim 1 characterised in that the profiled section is formed by adjoining U-shaped or dovetail-shaped profiled sections (2, 3).
3. Flashing element according to claim 1 characterised in that the profiled section (2, 3) is pressed flat at a flange (7) adjoining the edge of the side parts (5).
4. Flashing element according to one of the preceding claims characterised in that the flat material comprising the profiled section (2, 3) is shaped so that the flashing element (4, 4a) has a profiled base (6) as well as on each of the two opposing sides of the base (6) running transversely or vertically to the profiled section (2, 3) a bent-up lateral region (5, 5a) which is angled or protruded over the base (6).
5. Flashing element according to claim 4 characterised in that the lateral regions (5a) include an angle with one another which is greater than 90° and opens towards the open side of the channel-shaped flashing element (4a).
6. Flashing element according to claim 4 characterised in that the flashing element (4) has a U-shaped or dovetail-shaped cross-section with two arms (5) each forming a side part and with a yoke section (6) connecting these arms and forming the base.
7. Flashing element according to one of the preceding claims characterised in that the profiled section has a height (H) which is substantially smaller than the width (B) of the profiled sections (2, 3) which adjoin one another.
8. Flashing element according to one of the preceding claims characterised in that the flat material (1) is a metal flat material, by way of example sheet steel.
9. Flashing element according to one of the preceding claims characterised by at least one closure element (12, 13, 13a) which closes the flashing element on the open side.
10. Flashing element according to claim 9 characterised in that the closure element (13a) is designed in the form of a box.
11. Flashing element according to claim 9 or 10 characterised by a sealing material (16) for sealing the transition between the at least one closure element (12, 13, 13a) and the flashing element (4, 4a).
12. Method for manufacturing a box-type flashing element (4) according to one of claims 1 to 12 characterised in that the flashing element is produced through bending transversely or vertically in relation to the profiled section of the flat material so that the profiled section is pressed flat through bending at least at the transitions (8) between the side parts (5, 5a) and the base (6), but otherwise the profiled section is maintained at the base (6) and at the side parts (5, 5a) or is pressed flat at the side parts (5, 5a) or at one edge of the side parts (5) remote from the base (6).

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