DE2249970C3 - Device for bridging and covering expansion joints on bridges and similar structures - Google Patents

Description

The invention relates to a device for bridging and covering expansion joints of bridges ken and similar structures with edge profile beams running in the direction of the joints and, if necessary one or more lamellas as well as with a hat-like cross-section having elastic stretch bodies, their legs in formed on the edge profile supports and optionally the lamellas, upwards Open grooves are used and designed to secure against pulling out widtrhaken.

In order to use and replace the expansion body without difficulty in such a device can be used to form the grooves in accordance with German Offenlegungsschrift 2 202 352 on the edge profile supports or the lamellas are welded on with unequal angle profile pieces or sheet metal strips. the The vertical legs of the substantially hat-shaped stretch bodies have a pine cone-like shape Profile, so that they can be easily introduced into the grooves on the one hand and through the barbed hooks on the other hand Profile are also kept in it. With this type of mounting of the profile, however, there is a risk of that due to manufacturing tolerances of the expansion body its installation with certain difficulties brings or that due to influences and forces acting on the expansion body in the installed state the expansion body is not held sufficiently by its elasticity and the barb-like profile alone.

The invention is therefore based on the object of making assembly and replacement even easier and in the installed state the expansion body still better to hold.

This object is achieved according to the invention in that the groove is designed as a clamping gap and their side facing away from the edge profile support or the lamella consists of a spring-loaded terminal strip exists, the upper end of which is provided with a bend that narrows the clamping gap.

In contrast to the version according to the DT-OS 2 202 352, the importance of the subject of the application lies in the fact that not only the expansion bodies, but also the grooves as clamping gaps are designed to be resilient and elastic and also on the part of the By arranging a bend, the clamping gap provides further security against the unintentional Slipping out of the extensions of the expansion body is obtained from the grooves. At the same time this bend, which is resiliently arranged at the upper end of the terminal strip, easy assembly and disassembly the expansion body /> i.

The thin bodies get a tighter fit in the clamping gap, which is beneficial in this respect mach !, that bends up to about 15 at a transition road / sidewalk are made possible. Self With such kinks, the extensions of the Pehnkörper do not slip out of the Klcmmspalt.

A tolerance compensation is achieved as a further advantage. As is known, they can be made of rubber or a other elastic material existing stretch body produced only in comparatively large tolerances will. It can also be attributed to this that, due to the choice of cross-section of the extensions, the expansion body (cf. pine cone-like profile) various efforts have been made to compensate for tolerance here and to achieve a tight fit of the expansion body in the groove. The invention now becomes the first Paint the measure taken up, not only the expansion body, but also the groove to make resilient. Because the groove is also resilient, manufacturing-related tolerances of the Do not make stretch bodies in the way disadvantageously noticeable, as is the case with the prior art.

The expansion body can also be constructed in several parts, which further facilitates its assembly.

The edge profile supports and the slats can have the width of the at their upper and / or lower edge Have clamping gap overlapping projections. This ensures that even a relatively small Gap width a destruction of the Klemmspultc is excluded. When arranging the projections on At the top edge of the metal lamellas, the expansion body is additionally protected in the area of the flank of the metal lamellas.

Exemplary embodiments of the invention are described with reference to the drawing, namely shows

F i g. 1 shows a cross section through a device for small movements in the expansion joint,

F i g. 2 a cross section through a device for larger movements in the expansion joint,

F i g. 3 a further embodiment of a device for small gap widths and

F i g. 4 a further embodiment for larger expansion paths.

The in F i g. The device shown in FIG. 1 is symmetrical to the abutment 1 and the superstructure 2. The transition structure each has an edge profile support 4, which is connected to a horizontal Leg 3 is anchored in the concrete.

To form clamping gaps 6 resiliently designed clamping strips 7 are provided. You are in the lower Area connected to the vertical flanks 5 det edge profile support 4, for example connected or screwed on. In the area of the connections, sealing strips are to be placed between the terminal strip 7 and the edge profile support 4.

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gen 8 arranged.

It is essential that the clamping gaps 6 are arranged approximately vertically and are designed to be open at the top so that the expansion body 9 can be introduced directly into the clamping gaps 6 from the roadway Cross-section is hutary. L ^: r has a central strip 10 and extensions 11 which extend into the clamping gap 6 on both sides and which can be equipped with expanding lips 12. In the Ausiührungsbeispiel shown in Fig. 1, the thin body 9 also has upwardly directed extensions 13, so that the contact of the stretch body 9 on the flanks 5 of the edge profile support 4 is increased.

The terminal strips 7 have bends 14 at their upper F.nden, which the Klcmmspjli 6 at this point narrow. The bends 14 thus form a lock or a lock threshold for the expansion body 9.

In Fig.2 is the formation of a bridging structure shown for an expansion joint with greater play. Between the two edge profile supports 4, a lamella 4 ′ is inserted here, which has two flanks 5. It goes without saying that also several slats 4 'can be arranged. The slats 4 'are preferably via a not shown Forced control led.

The expansion body is shown here in two different versions. It can be multi-part Expandable body 9, 9 'be formed. This multi-part training simplifies assembly more.

In addition, when setting up the device according to ίο F i g. 2 at the top and bottom of the edge profile support 4 and the lamella 4 'projections 15 and 16 are provided which cover the width of the clamping gaps 6 and thus protect.

In the F i g. 3 and 4 are two training options shown with differently designed edge profile supports 4 or lamellas 4 ', but the same terminal strips 7.

The expansion body 9 also matches in its profile. This stretch body 9 is also hat-like Cross-section and has on both sides extensions 11 that have an expanding lip 12. The terminal strips 7 can have different heights, depending on the particular training the edge profile support 4 or the slats 4 '. be connected to the flanks 5.

Here / u 2 sheets of drawings

Claims (3)

Patent claims: 1. Device for bridging around., - 'cover of expansion joints in bridges and similar structures that run in the direction of the joint Edge profile supports and optionally one or more lamellas as well as a hat-like one Cross-section having elastic expansion bodies, their legs in on the edge profile supports and optionally the slats formed, upwardly open grooves used and for securing are formed barb-shaped against pulling out, characterized in that the Groove is designed as a clamping gap (6) and facing away from the edge profile support (4) or the lamella (4 ') Side consists of a spring-loaded terminal strip (7), the upper end of which with one of the clamping gap (6) narrowing abutment (14) is provided. 2. Apparatus according to claim 1, characterized in that the expansion body (9, 9 ') is constructed in several parts is. 3. Apparatus according to claim 1 or 2, characterized in that the edge profile support and the Lamellas at their upper and / or lower edge the width of the clamping gap (6) overlapping projections (15 or 16).