CN1587533A

CN1587533A - Comb type bridge expansion joint device resisting transverse shift

Info

Publication number: CN1587533A
Application number: CN 200410066942
Authority: CN
Inventors: 徐斌
Original assignee: Individual
Current assignee: Ningbo Roaby Technology Industrial Group Co ltd
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2005-03-02
Anticipated expiration: 2024-09-30
Also published as: CN100552139C

Abstract

The comb type bridge expansion joint device includes fixed comb plate and movable comb plate set on the side beams of bridge expansion joint, the movable comb plate is set on the bridge expansion joint, and the fixed comb plate and the movable comb plate have teeth arranged alternately. The present invention features that each of the teeth of the fixed comb plate consists of tooth root integrated with the comb plate and movable tooth connected to the tooth root and capable of being shifted transversely. In case the beams have transverse deformation caused by wind and other outer force, the tooth roots of the fixed comb plate will shift transversely relative to the movable comb teeth, and this together with the filled elastic damping material can avoid the breakdown of the comb teeth. The extension joint may restore after the outer force disappears, if the outer force is within some limitation.

Description

A kind of comb type bridge expansion joint device of resisting transverse shift

Technical field

The present invention relates to the comb type bridge expansion joint device of a kind of expansion gap device of bridge, particularly a kind of resisting transverse shift.

Background technology

In existing bridge expansion joint installation, adopting fixedly, the comb type stretching device of pecten and the cooperation of movable pecten is a kind of preferably, especially use stroke in the large bridge shrinkage joint more than 160 millimeters, Chinese patent ZL02264872.0 number " assemble comb-type bridge extension joint " formerly proposing as me is exactly like this, because its stretching motion is by placing the movable pecten on the bridge expanssion joint to finish, there is not vertical transition gap, and and bridge floor, the road surface connects into an integral body, therefore shockproof properties is good, vehicle ' is steady, comfortable, avoided jumping car phenomenon effectively, made vehicle smooth-going, cosily cross.

But at cable stayed bridge, suspension bridge, in the bridges such as arc beam bridge, the beam body is except taking place vertically under vehicular load and temperature effect, outside the vertical deflection, under other factor effects such as wind-force, the beam body also can the occurred level direction horizontal corner and wrench deformation, traditional modulus formula and comb type stretching device all can not satisfy this distortion needs, modulus formula device can produce supporting beam disconnection fracture in length and breadth, and be that rigidity contacts between the broach of comb type stretching device, under this lateral deformation effect, broach wrecks easily, thereby causes the damage of whole expansion gap device.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of when horizontal corner distortion takes place under because of external force effect such as pneumatic the beam body at above-mentioned prior art present situation, the comb type bridge expansion joint device of the resisting transverse shift that do not rupture of still being kept perfectly.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: the comb type bridge expansion joint device of this resisting transverse shift comprises fixedly pecten and the movable pecten that is separately positioned on the bridge expanssion joint two curb girder bodies, wherein movable pecten places on the bridge expanssion joint, fixedly pecten respectively is provided with broach and transpostion interval setting mutually with movable pecten in relative separately end, the broach that it is characterized in that described fixedly pecten is made of tooth root and movable broach with the body one, but and movable broach be connected with corresponding tooth root with the connected mode of lateral shift.

But the connected mode of the lateral shift between described movable broach and the tooth root can adopt variety of way of the prior art, but is good to adopt following two kinds of optimal ways:

First kind of optimal way, movable broach and tooth root respectively are provided with superimposed step up and down in the junction, wherein have circular hole on the step of tooth root, then have corresponding mounting hole on the step of movable broach, a bolt passes the hole on this two step and both is connected one;

Second kind of optimal way: tooth root has drop-center in the junction, the end of movable broach then is inserted in this drop-center, and, tooth root groove in the central has vertical circular hole, the end of movable broach then has corresponding mounting hole, and a bolt passes this two hole and tooth root is connected one with movable broach.

In order to make each movable broach more evenly standardized when lateral shift takes place, can penetratingly be provided with a bolt as rotating shaft at the middle part of movable broach.

For the convenience of making, installing, described be used to connect the bolt of tooth root and movable broach and be applied in movable broach middle part, can be two vertical portions of same U-bolt as the bolt of rotating shaft.

In order to be highly resistant to beam slab the variable force of scratching that horizontal corner deformation produced takes place, the mounting hole of described movable broach is being positioned at the gap filling elastic damping material of bolt both sides, as damping rubber etc.

For the variable force of scratching that horizontal corner deformation produced takes place in further opposing beam slab, can be between the tooth root of fixing pecten the filling elastic damping material, as damping rubber etc.

Compared with prior art, when Liang Tiyin is subjected to take place under the external force effect such as pneumatic horizontal corner distortion, lateral shift can take place between the comb root of fixedly pecten of the present invention and the movable broach, add in the mounting hole that is filled in movable broach and be filled in elastic damping material between the tooth root, can subdue effectively and scratch variable force, avoid the generation of broach fracture, and if external force be not very big, can also eliminate the back in external force and recover normal.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention one.

Fig. 2 is the partial top view of Fig. 1.

Fig. 3 is the A-A sectional view (U-bolt does not show) of Fig. 2.

Fig. 4 is the B-B sectional view (U-bolt does not show) of Fig. 2.

Fig. 5 is the sectional perspective decomposing schematic representation of Fig. 2.

Fig. 6 is the sectional perspective decomposing schematic representation of the embodiment of the invention two.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 5, be embodiments of the invention one, it comprises fixedly pecten 2 and the movable pecten 1 that is separately positioned on 71 liang of curb girder bodies 7 of bridge expanssion joint, wherein movable pecten 1 places on the bridge expanssion joint 71, and fixedly pecten 2 and movable pecten 1 are provided with broach and transpostion interval setting mutually at opposed end separately;

Wherein fixedly the broach of pecten 2 is made of tooth root 22 and movable broach 21 with the body one, movable broach 21 respectively is provided with superimposed step up and down with tooth root 22 in the junction, wherein have circular hole 23 on the step of tooth root 22, then have corresponding mounting hole 24 on the step of movable broach 21, a vertical portion 31 of one U-bolt 3 is passed the hole on this two step and both is connected one, the rotating shaft of the middle part that movable broach 21 is run through in 32 of another vertical portions of U-bolt 3 during as skew, described U-bolt 3 usefulness nuts 4 are fixed;

And, the mounting hole 24 of described movable broach 21 in the gap filling that is positioned at U-bolt 3 both sides such as elastic damping material 5 as damping rubber, simultaneously between the tooth root 22 of fixing pecten 2 also filling such as damping rubber elastic damping material 6.

As shown in Figure 6, be embodiments of the invention two, and the difference of embodiment one is the connected mode between tooth root 22 and the movable broach 21, in the present embodiment, tooth root 22 has drop-center 25 in the junction, the end of movable broach 21 then is inserted in this drop-center 25, and, tooth root 22 groove 25 places in the central has vertical circular hole, the end of movable broach 21 then has corresponding mounting hole 24, and a vertical portion 31 of U-bolt 3 is passed this two hole and tooth root 22 is connected one with movable broach 21.

Claims

1, a kind of comb type bridge expansion joint device of resisting transverse shift, comprise the fixedly pecten (2) and the movable pecten (1) that are separately positioned on bridge expanssion joint (71) the two curb girder bodies (7), wherein movable pecten (1) places on the bridge expanssion joint (71), fixedly pecten (2) respectively is provided with broach and transpostion interval setting mutually with movable pecten (1) in relative separately end, the broach that it is characterized in that described fixedly pecten (2) is made of tooth root (22) and the movable broach (21) with the body one, and movable broach (21) but be connected with corresponding tooth root (22) with the connected mode of lateral shift.

2, the comb type bridge expansion joint device of resisting transverse shift according to claim 1, it is characterized in that described movable broach (21) and tooth root (22) but between the connected mode of lateral shift be: movable broach (21) respectively is provided with superimposed step up and down with tooth root (22) in the junction, wherein have circular hole (23) on the step of tooth root (22), then have corresponding mounting hole (24) on the step of movable broach (21), a bolt passes the hole on this two step and both is connected one.

3, the comb type bridge expansion joint device of resisting transverse shift according to claim 1, it is characterized in that described movable broach (21) and tooth root (22) but between the connected mode of lateral shift be: tooth root (22) has drop-center (25) in the junction, the end of movable broach (21) then is inserted in this drop-center (25), and, tooth root (22) groove (25) in the central locates to have vertical circular hole, the end of movable broach (21) then has corresponding mounting hole (24), and a bolt passes this two hole and tooth root (22) is connected one with movable broach (21).

4,, it is characterized in that penetratingly being provided with a bolt as rotating shaft at the middle part of movable broach (21) according to the comb type bridge expansion joint device of claim 1 or 2 or 3 described resisting transverse shifts.

5, the comb type bridge expansion joint device of resisting transverse shift according to claim 4, it is characterized in that described be used to connect the bolt of tooth root (22) and movable broach (21) and be applied in movable broach (21) middle part, be two vertical portions of same U-bolt (3) as the bolt of rotating shaft.

6,, it is characterized in that the mounting hole (24) of described movable broach (21) is being positioned at the gap filling elastic damping material (5) of bolt both sides according to the comb type bridge expansion joint device of claim 1 or 2 or 3 described resisting transverse shifts.

7, the comb type bridge expansion joint device of resisting transverse shift according to claim 4 is characterized in that the mounting hole (24) of described movable broach (21) is being positioned at the gap filling elastic damping material (5) of bolt both sides.

8,, it is characterized in that filling elastic damping material (6) between the tooth root (22) of fixing pecten (2) according to the comb type bridge expansion joint device of claim 1 or 2 or 3 described resisting transverse shifts.

9, the comb type bridge expansion joint device of resisting transverse shift according to claim 4 is characterized in that filling elastic damping material (6) between the tooth root (22) of fixing pecten (2).