DE1658504A1 - Device for bridging expansion joints, in particular bridges - Google Patents

Description

Device for bridging the expansion joints, especially of bridges

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The invention relates to a device for bridging Expansion joints, especially of bridges with prestressed, elastic resilient and transverse to the stretching direction stretching bodies, between each of which a metal lamella is arranged that rests on cross members that bridge the expansion joint and on the traffic route parts adjoining the joint are supported.

Differs from known joint bridging devices of this type the device according to the invention is characterized in that the expansion bodies are made of at least one inserted into the expansion joint two expansion bodies and a metal lamella inserted between them formed expansion package each have an upwardly protruding edge rib on their two upper longitudinal edges, and daes the metal parts resting on the long sides of the expanding body at the top edge ridges of claw-shaped cross-section, which the marginal ribs of the Delmkßrp ^ r ^ riigreifan.

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The drawing shows two exemplary embodiments of the Subject of the invention shown, namely shows:

1 shows a cross section through the joint bridging device according to the first embodiment,

FIG. 2 is a partial plan view of FIG. 1,

3 shows a second embodiment of the joint bridging device, and

Fig. 4 shows a detailed part of Fig. 1 or 2 in a larger Scale.

The embodiment of the joint bridging device shown has one end support 1, 1 * on each of the two joint edges. Both end supports show the shape of a lying Z in cross section and are anchored in the concrete 3 by means of anchoring brackets 2 welded to them. On with the end beams 1,1 * welded intermediate pieces 2 '(Fig. 2) are edge beams 4 and 4 ¹ of angular cross-section, which end with the outer end of their parallel to the top of the roadway' leg on the inside of the upward The leg of the end support 1 or I ¹ . The horizontal legs of the edge girders 4 and 4 'are connected to the end girders 1 and I ¹ by tensioning screws 5. The edge girders 4,4 'limit the concrete pavement layer 3 against the joint. By means of the tensioning screws 5, the edge supports 4 and 4 'are pulled against the top of the intermediate pieces 2 * of the end supports 1 and 1 ". Between the upwardly directed legs of the edge supports 4 and 4' lies the expansion package 6 (FIG. 2). , that from

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BATH ORIGINAL

two expansion bodies 8 and a metal lamella 7 arranged between them is formed. The two expansion bodies δ are firmly connected on the one hand to the metal lamella 7 and on the other hand to the upright legs of the edge supports 4 and 4 'by means of a synthetic resin adhesive. The metal lamella 7 is firmly connected to cross members 9 at its lower longitudinal edge. The ends of these cross members 9 have tilting pieces 11 on their lower and upper sides and are guided with these between the parallel legs of the end member 1 or I ¹ and the edge carrier 4 or 4 ¹ . 12 are on the end beams 1 or 1 * attached stop strips to limit the displacement of the cross member 9 in the direction of the road. The cross members 9 prevent the metal lamella 7 from tilting.

The expansion bodies 8 have a rectangular cross section. They form hollow bodies, the outer walls of which are connected to one another by several intermediate walls 8 * parallel to their diagonal planes. The two upper longitudinal edges of the expansion body 8 are provided with edge ribs 13 projecting upwards. The metal lamella 7 and the two vertical profile legs of the edge girders 4 and 4 ¹ are provided at the top with edge strips 14 that protrude over the expansion bodies 8 and are provided with longitudinal grooves 15 on their underside. The edge ribs 13 of the expansion body 8 engage in the longitudinal grooves

15 of the edge strips 14 a. 16 (Fig. 4) are at the top of the side walls the expansion body 8 located horizontal longitudinal beads.

The upwardly projecting edge ribs 13 clamped into the longitudinal grooves 15 and the longitudinal beads pressing against the metal lamella 7 or the vertical profile legs of the edge supports 4 and 4 ^{1, respectively}

16 prevent the ingress of liquids such as water, gasoline, OeI etc. into the expansion joint. The edge ribs 13 and those of the up-

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would take the latter serving longitudinal grooves 15 to improve the association of the elements 7 , 8 and 4 or 4 ^{1 of} the expansion package.

The second embodiment of the joint bridging device differs from the first only in that instead of two Dehnkörpern 8, which uses three using two metal discs 7 in the DehnpaJtib. In this embodiment, too, the expansion bodies 8 are firmly connected to both the lamellae 7 and to the vertical profile legs of the edge girders 4 and 4 'by means of a synthetic resin adhesive. In addition, an additional cohesion of the elements of the expansion package and the sealing of the expansion joint is ensured by the engagement of the edge ribs 13 of the expansion body 8 in the longitudinal grooves 15 of the edge strips 14 of the metal lamellas 7 and the edge supports 4 and 4 '. Both metal lamellas 7 are attached to transverse girders 9, the cross girders 9 following one another along the expansion joint, e.g. alternately with one metal lamella and then again with the other metal lamella, so that each metal lamella can slide on the cross girders 9 of the other metal lamella. Thanks to this arrangement, the metal lamellae can move independently of one another in the plane of the carriageway on the cross members, depending on the deformation of the resilient stretch bodies.

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Claims (6)

PATENT CLAIMS: 1. Device for bridging the expansion joints, in particular of bridges, with pre-tensioned, elastically resilient and transverse to the stretching direction stretching bodies, between each of which a metal lamella is arranged, which rests on cross members that bridge the expansion joint and on the parts of the traffic route adjoining the joint are supported, characterized in that the expansion bodies (8) one in the A Expansion joint, formed from at least two expansion bodies (8) and a Mdallsmelle (7) inserted between these Expansion package (6) each have an upwardly protruding edge rib (13) on their two upper longitudinal edges, and that the metal parts (4, 4 ', 7) resting on the longitudinal sides of the expansion bodies (8) at the top edge strips (14) of claw-shaped cross-section have, which encompass the edge ribs (13) of the expansion body (8). 2, device according to claim 1, characterized in that the expansion body (8) on their to the metal discs (7) or f vertical profile legs of the edge girders (4 or 4 ') adjacent side surfaces have horizontal sealing beads (16). 3. Device according to claim 1, characterized in that the expansion bodies (3) are designed as hollow bodies, with intermediate ^{walls (8 1} ) penetrating the cavity connecting the outer walls to one another * BATH ORIGINAL 4. Apparatus according to claim 1, characterized in that the expansion bodies (8) are designed as hollow bodies of rectangular cross-section, the outer walls of ^{which are connected to one another by intermediate walls (8 1} ) which run parallel to the diagonal planes of the body. 5. The device according to claim 1, characterized in that the expansion body (8) with the metal lamellae lying between them (7) and the edge supports (4 or 4 ') resting against them are firmly connected to one another by means of a synthetic resin adhesive are. 6. The device according to claim 1, characterized in that the edge girders (4 or 4 ¹ ) delimiting the longitudinal sides of the expansion pack (6) by means of clamping screws (5) against which the cavity for guiding the transverse girders (9) of the metal lamellae (7) securing intermediate pieces (2 ¹ ) of the end support (1, 1 ') are pulled, the expansion packs being exchangeable after loosening the tensioning screws. For MAGEBA S. A. J the patent attorney; ο ο Q "< ->", ο ς C ₁ ■) Blank page