Expansion-joint bridging device

Abstract

An expansion joint bridging device in the form of a plate-type roadway joint which bridges an expansion joint between two building components. The expansion joint is spanned by crossbeams which are braced in a load-bearing relationship on both building components. Supported on the crossbeams is at least one plate disposed above the crossbeams, the plate having two plate portions which lie flush with one another and are interconnected in a force-transmitting relationship. The plate portions are connected in situ by means of at least one cover plate which bridges the joint between the plate portions and connects the two plate portions in a force-transmitting relationship. At least one of the connections between the cover plate and the plate portions is hinged, having a rotational degree of freedom about an axis extending horizontally transversely to the orientation of the relevant plate.

Claims

1. An expansion-joint bridging device (1) in the form of a plate-type roadway transition (2), which bridges over an expansion joint (5) present between two edifice parts (3, 4) of a drivable edifice (8), having the following features: the expansion joint (5) is spanned by at least three cross members (6), each braced in a load-bearing relationship on both edifice parts (3, 4), wherein at least one load-bearing bracing element permits a shifting movement of a corresponding cross member relative to a corresponding edifice part; at least one plate (7) disposed above the cross members (6) is braced on the cross members (6); the at least one plate (7) comprises two plate portions (7.1, 7.2) joined flush with one another in a mutually force-transmitting relationship; the joining of the plate portions (7.1, 7.2) is by at least one strap (10) bridging over a butt joint (9) present between the plate portions (7.1, 7.2) and joined in a force-transmitting relationship with both plate portions (7.1, 7.2); and at least one of two joints of the strap (10) with the plate portions (7.1, 7.2) is pivotable with one rotational degree of freedom around an axis extending horizontally and transversely relative to the orientation of the corresponding plate (7).

2. The device of claim 1, wherein both joints of the strap (10) with the plate portions (7.1, 7.2) are pivotable with each joint having one rotational degree of freedom around parallel axes.

3. The device of claim 1, wherein the butt joint (9) in vertical projection overlaps with one of the cross members (6).

4. The device of claim 3, wherein the cross member (6) overlapping with the vertical projection of the butt joint (9) is a double cross member (6D).

5. The device of claim 3, wherein the cross member (6) overlapping with the vertical projection of the butt joint (9) is a solid structure.

6. The device of claim 3, wherein both plate portions (7.1, 7.2) are joined to one another by a curved bracket (12), which engages a bottom of the cross member (6) underneath the butt joint (9).

7. The device of claim 6, wherein at least one sliding spring (13) acts between the curved bracket (12) and the corresponding cross member (6).

8. The device of claim 1, wherein an L-shaped anti-lifting safeguard (14.1, 14.2) is joined with at least one of the plate portions (7.1, 7.2), such that the L-shaped anti-lifting safeguard engages under one of the cross members (6) located closest to the butt joint (9) and bracing the corresponding plate portion (7.1, 7.2).

9. The device of claim 8, wherein at least one sliding spring (13) acts between the anti-lifting safeguard (14.1, 14.2) and the corresponding cross member (6).

10. The device of claim 1, wherein a first plate portion (7.1) of the at least one plate (7) is replaceable independent of a second plate portion (7.2) of the at least one plate (7).

11. The device of claim 10, wherein at least one of the two edifice parts (3, 4) comprises a concrete structure and in that the first plate portion (7.1) of the at least one plate (7) is replaceable without intervention into the concrete structure (B).

12. The device of claim 1, wherein the two plate portions (7.1, 7.2) joined with the strap (10) are sealed in a liquid-tight relationship by a sealing member, which is disposed in their common butt joint (9).

13. The device of claim 12, wherein the sealing member comprises butyl rubber.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) In the following, exemplary embodiments of the invention will be explained in more detail with reference to the drawings, wherein

(2) FIG. 1 shows roughly schematically an expansion-joint bridging device positioned between two edifice parts,

(3) FIG. 2 shows an expansion-joint bridging device with curved bracket-shaped anti-lifting safeguards along section A-A according to FIG. 1,

(4) FIG. 3 shows another embodiment of an expansion-joint bridging device with L-shaped anti-lifting safeguards along section A-A according to FIG. 1, and

(5) FIG. 4 shows the oblique view of the expansion-joint bridging device from FIG. 3.

(6) FIG. 5 shows a bottom view of the expansion-joint bridging device of FIG. 1 taken along cut line C-C of FIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(7) As can be seen in FIG. 1, expansion-joint bridging device 1 in the form of a plate-type roadway transition 2 bridges over expansion joint 5 between the two edifice parts 3, 4 of a drivable edifice 8. This expansion joint 5 is spanned by at least three cross members 6, each visible in FIG. 5, which are braced in load-bearing relationship on two edifice parts 3, 4 respectively comprising a concrete structure B. One of the load-bearing bracing elements of one of each cross members 6 permits a shifting movement of the respective cross member 6 relative to edifice part 3, 4 in question, in order to ensure that bridging device 1 becomes adapted to the variable width of expansion joint 5. Plates 7 disposed above cross members 6 are braced on cross members 6. In FIG. 1, noise-reducing layers LA are disposed above plates 7. This seal DI is situated in cross-member direction between plates 7.

(8) FIG. 2 shows that plate 7 comprises two plate portions 7.1, 7.2 flush with one another and joined to one another in force-transmitting relationship, wherein the force-transmitting joint of plate portions 7.1, 7.2 takes place by means of strap 10. This strap 10 bridges over butt joint 9 present between plate portions 7.1, 7.2; its vertical projection overlaps with a cross member 6, which is constructed as double cross member 6D, by comprising two H-beams welded to one another.

(9) Both joints of strap 10 with plate portions 7.1, 7.2 are constructed with the ability to pivot with respectively one rotational degree of freedom around an axis extending horizontally and transversely relative to the orientation of plate 7 in question. Threaded bolts 11.1 secured with nuts as well as lock nuts then act as joining means 11.2, wherein the screwed joint formed by them is constructed in such a way that no friction is established between strap 10 and plate portions 7.1, 7.2 that could hinder their rotation relative to one another.

(10) Both plate portions 7.1, 7.2 are additionally joined to one another by means of a curved bracket 12, which functions as an anti-lifting safeguard and engages around the bottom of cross member 6 provided underneath butt joint 9 (see FIG. 2).

(11) This curved bracket 12 comprises three horizontally aligned profile sections 15 and two vertically aligned profile sections 16. Joining of curved bracket 12 with both plate portions 7.1, 7.2 then takes place by means of threaded bolts 17 secured with nuts, wherein respectively one mounting plate 18.1, 18.2 associated with a plate portion 7.1, 7.2 is attached between two horizontally aligned profile sections 15 belonging to curved bracket 12 and the two plate portions 7.1, 7.2. A sliding member 19.1, 19.2 respectively associated with one mounting plate 18.1, 18.2 and joined with it acts between each of the two mounting plates 18.1, 18.2 and cross member 6. At least one sliding spring 13 acts, underneath cross member 6, between curved bracket 12 and cross member 6 engaging around it. Beyond this, although also not illustrated in FIG. 2, sliding members are likewise disposed between vertically aligned bracked 12 and cross member 6 (see FIG. 2).

(12) In contrast to FIG. 2, FIG. 3 and FIG. 4 show an expansion-joint bridging device 1 with two L-shaped anti-lifting safeguards 14.1, 14.2, which respectively are associated with a plate portion 7.1, 7.2 and engage under the cross member 6, designed as a solid structure, situated closest to the butt joint and bracing plate portions 7.1 and 7.2 in question. These L-shaped anti-lifting safeguards 14.1, 14.2 respectively comprise two horizontally aligned profile sections 15, one vertically aligned profile section 16 and one stiffening plate 21. Joining of L-shaped anti-lifting safeguards 14.1, 14.2 with the associated plate portions 7.1, 7.2 then takes place by means of threaded bolts 17 secured by means of nuts. Thus, between a first horizontally aligned profile section 15 belonging to anti-lifting safeguard 14.1, 14.2 and the associated plate portion 7.1, 7.2, respectively one mounting plate 18.1, 18.2 associated with this is disposed. A sliding member 19.1, 19.2 respectively associated with one mounting plate 18.1, 18.2 and joined with it acts between each of the two mounting plates 18.1, 18.2 and cross member 6. At least one sliding spring 13 acts, respectively underneath cross member 6, between anti-lifting safeguard 14.1, 14.2 and cross member 6 engaging around by it. Respectively one sliding member 20.1, 20.2 is disposed between vertically aligned profile sections 16 and cross member 6.