CN211713666U - Expansion joint device of bridge - Google Patents
Expansion joint device of bridge Download PDFInfo
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- CN211713666U CN211713666U CN201922113707.4U CN201922113707U CN211713666U CN 211713666 U CN211713666 U CN 211713666U CN 201922113707 U CN201922113707 U CN 201922113707U CN 211713666 U CN211713666 U CN 211713666U
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Abstract
The utility model discloses an expansion joint device of bridge, including the fixed plate and striding the seam board, stride the seam board and locate the top of fixed plate, stride the inboard region of seam board and the inboard region of fixed plate superpose each other, stride and be provided with one or more draw runner between the inner of seam board and the fixed plate inner, the upper surface of draw runner and stride the lower bottom surface fixed connection of the inner of seam board, the mutual surface contact of draw runner and fixed plate, the draw runner can be along with striding seam board relative fixed plate horizontal slip, its advantage is under the prerequisite that guarantees that the expansion joint device has the longitudinal displacement function, have the lateral displacement function simultaneously, satisfy highway or bridge in vertical and horizontal flexible deformation better, be particularly useful for bridge floor widen and the concatenation and the installation of expansion joint structure; the sliding strip has the advantages of simple structure, low cost and convenient transportation.
Description
Technical Field
The utility model relates to an expansion joint device of bridge.
Background
In order to meet the requirement of bridge deck deformation, an expansion joint device is usually arranged between two beam ends, between the beam ends and an abutment or at the hinged position of a bridge, and the expansion joint device is required to be capable of freely expanding and contracting in two directions parallel to and perpendicular to the axis of the bridge, so that a vehicle is smooth and free of sudden jump and noise when running. It is also necessary to prevent rainwater and garbage soil from infiltrating and blocking, and the installation, inspection, maintenance and dirt removal are all simple and convenient. In addition, at the position of the expansion joint device, the railings and the bridge deck pavement are disconnected. The function of the bridge expansion joints is to accommodate the displacement and coupling between the superstructure caused by vehicle loads and bridge building materials. Once the telescopic device is damaged, the speed, comfort and safety of the vehicle are seriously influenced, and even a vehicle safety accident is caused.
The bridge expansion structure device applied at present mainly solves the problem that the bridge deforms in two directions of longitudinal direction and vertical to the axis of the bridge, but part of the original and old bridge does not meet the requirements of increasingly developing society and needs to be spliced and widened. Under the condition, the bridge splicing position can generate transverse displacement besides longitudinal and vertical displacement, and the original common expansion device can not meet the deformation requirement. For example, the invention patent with chinese patent No. 201310318260.9 discloses a bridge expansion joint device for resisting earthquake displacement, which includes a first movable comb plate and a second movable comb plate respectively disposed on a first beam body and a second beam body at two sides of the bridge expansion joint, the first movable comb plate and the second movable comb plate are respectively disposed with comb teeth at respective opposite ends and are arranged in a crossing and spacing manner, wherein the first movable comb plate crosses the bridge expansion joint transversely to make the ends of the comb teeth located on the second beam body, the first movable comb plate and the second movable comb plate are respectively disposed on the respective corresponding beam bodies in a manner of being able to rotate transversely with respect to the beam bodies, and the bridge expansion joint with such a structure can satisfy the state of transverse rotation of the bridge, but cannot realize transverse horizontal displacement.
Disclosure of Invention
The utility model aims to solve the technical problem that an expansion joint device of bridge that simple structure, with low costs just possess indulge, lateral displacement function is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an expansion joint device of bridge, includes fixed plate and strides the seam board, stride the seam board locate the top of fixed plate, the inboard region of striding the seam board with the inboard region of fixed plate superpose each other, the inner of striding the seam board with fixed plate inner between be provided with one or more draw runner, the upper surface of draw runner with the lower bottom surface fixed connection of the inner of striding the seam board, the draw runner with the fixed plate mutual surface contact, the draw runner can follow stride the seam board relative fixed plate horizontal slip.
The number of the sliding strips is 1.
The sliding strip is welded and fixed on the lower bottom surface of the inner end of the seam crossing plate.
The sliding strip is detachably fixed on the lower bottom surface of the inner end of the seam crossing plate. Convenient dismantlement and subsequent maintenance.
The sliding strips are arranged on the lower bottom surface of the inner end of the seam crossing plate in a screwed mode through a plurality of intervals, and a cushion pad is arranged between the seam crossing plate and the sliding strips. The buffer pad plays a role in buffering and protecting the slide bar.
The width of the slide bar is 4-10 cm.
The material of the slide bar is stainless steel or polytetrafluoroethylene board.
The seam crossing plate comprises a plurality of seam crossing plate plates which are arranged in parallel, a damping component is also arranged on the seam crossing plate, the shock absorption assembly comprises a fastening bolt, a shock absorption spring and a protective tool, the protective tool comprises a box body, the box body is provided with a cavity with an opening at the upper end, the damping spring is sleeved on the fastening bolt, the fastening bolt and the damping spring are accommodated in the cavity, a cover plate is arranged at the upper end of the box body, a gasket is arranged between the damping spring and the cover plate, the head of the screw rod of the fastening bolt extends out of the cover plate, a rubber pad is arranged between the cover plate and the seam crossing plate, a first bolt hole is arranged on the seam crossing plate, the head of the fastening bolt penetrates through the rubber pad and the first bolt hole and is screwed and fixed through a nut.
In the structure, the seam crossing plate is divided into a plurality of seam crossing plate pieces, and the seam crossing plate pieces and the corresponding damping assemblies are combined into independent telescopic units, so that each seam crossing plate piece can act independently, when the seam crossing plate pieces are stressed, the force arm is shortened, the impact force is reduced, the damping assemblies play a role in buffering each seam crossing plate, the seam crossing plate pieces are protected, and the service life of the seam crossing plate pieces is prolonged; the box body and the cover plate are enclosed to form an airtight cavity, the fastening bolt, the damping spring and the gasket are installed in the airtight cavity, the protection effect on the accessories is achieved, the accessories are prevented and treated from being polluted by concrete, and the normal work of the accessories is guaranteed.
The expansion joint device comprises a cross-seam plate daughter board, and is characterized by further comprising a longitudinal rotating assembly, wherein the longitudinal rotating assembly comprises a spherical bolt, a fixing base plate and a sleeve for fixing the bolt, a second bolt hole is formed in the middle of the outer end of the cross-seam plate daughter board, the bottom surface of the second bolt hole is matched with the arc-shaped surface of the spherical bolt, a third bolt hole is formed in the fixing base plate, an inward concave groove is formed in the lower bottom surface of the fixing base plate, the second bolt hole, the third bolt hole and the groove are coaxially arranged, the groove is communicated with the third bolt hole, the upper end of the sleeve is embedded and fixed in the groove, an internal thread hole matched with the spherical bolt is formed in the center of the sleeve, the internal thread hole and the third bolt hole are coaxially arranged, and the expansion joint device further comprises a collision-proof plate located on the outer side of the cross-seam plate daughter board, one end of the fixed backing plate is fixedly connected with the inner wall of the lower end of the anti-collision plate, and the fixed backing plate sequentially penetrates through the second bolt hole, the third bolt hole and the internal thread hole through the spherical bolt and is fixed below the seam crossing plate.
In the structure, the fixed base plate is fixedly connected with the anti-collision plate, the upper end of the sleeve is fixed on the fixed base plate, and the sleeve is pre-embedded in concrete during installation to realize the limiting and fixing of the fixed base plate and the anti-collision plate; the spherical bolt is screwed into the sleeve to connect the cross-seam plate and the fixed base plate, so that longitudinal displacement can be realized by matching the spherical surface of the spherical bolt with the second bolt hole, and the spherical bolt can be quickly detached and replaced when worn or broken, and the cross-seam plate has the advantage of convenience in installation and maintenance.
The longitudinal rotating assembly further comprises two longitudinal rotating shafts, two arc grooves used for placing the longitudinal rotating shafts are formed in the fixed base plate and located on two sides of the second bolt hole, the longitudinal sections of the longitudinal rotating shafts are semicircular, the opposite surfaces of the longitudinal rotating shafts and the seam crossing plate sub-plates are horizontal planes, and the upper end portions of the longitudinal rotating shafts extend out of the arc grooves. Here, set up the arc wall on fixed backing plate, place longitudinal rotating shaft in the arc wall, guarantee to stride the seam plate board and can longitudinally rotate.
Compared with the prior art, the utility model discloses an expansion joint device of bridge, this expansion joint device of bridge superposes each other in the inboard region of striding the seam board and the inboard region of fixed plate, it is provided with at least one draw runner to stride between the inner of seam board and the fixed plate inner, the draw runner is fixed on the lower bottom surface of the inner of striding the seam board, and the draw runner can be along with striding seam board relative fixed plate horizontal slip, under the prerequisite that the expansion joint device has the longitudinal displacement function, have the transverse displacement function simultaneously, satisfy highway or bridge in vertical and horizontal flexible deformation better, be particularly useful for bridge floor widen with the concatenation and the installation of expansion joint structure; the sliding strip has the advantages of simple structure, low cost and convenient transportation.
Drawings
FIG. 1 is a top view of the present invention installed in a bridge;
FIG. 2 is a cross-sectional view of the utility model installed in a bridge and the slide bar is welded and fixed;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a cross-sectional view of the present invention installed in a bridge with the slide bar removably secured;
FIG. 5 is an enlarged view at B in FIG. 4;
FIG. 6 is an enlarged view at C of FIG. 4;
fig. 7 is a cross-sectional view of the fixing pad of the present invention;
FIG. 8 is a cross-sectional view of a shock assembly of the present invention;
FIG. 9 is a cross-sectional view of the present invention installed in a bridge;
fig. 10 is an enlarged view at D in fig. 9.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: as shown in fig. 1-3, an expansion joint device for a bridge comprises a fixed plate 1 and a seam crossing plate 2, wherein the seam crossing plate 2 is arranged above the fixed plate 1, the inner side area of the seam crossing plate 2 and the inner side area of the fixed plate 1 are mutually overlapped, a sliding strip 3 is arranged between the inner end of the seam crossing plate 2 and the inner end of the fixed plate 1, the upper surface of the sliding strip 3 is fixedly connected with the lower bottom surface of the inner end of the seam crossing plate 2, the sliding strip 3 is in surface contact with the fixed plate 1, and the sliding strip 3 can horizontally slide along with the seam crossing plate 2 relative to the fixed plate 1. The sliding strip 3 is welded and fixed on the lower bottom surface of the inner end of the seam crossing plate 2. The width B of the slide bar 3 is 4-10 cm. The material of the slide bar 3 is stainless steel, a polytetrafluoroethylene plate or other materials with pressure resistance and wear resistance.
Example two: as shown in fig. 1, 4 and 5, an expansion joint device for a bridge comprises a fixed plate 1 and a seam crossing plate 2, wherein the seam crossing plate 2 is arranged above the fixed plate 1, an inner side area of the seam crossing plate 2 and an inner side area of the fixed plate 1 are mutually overlapped, a sliding strip 3 is arranged between the inner end of the seam crossing plate 2 and the inner end of the fixed plate 1, the upper surface of the sliding strip 3 is fixedly connected with the lower bottom surface of the inner end of the seam crossing plate 2, the sliding strip 3 is in surface contact with the fixed plate 1, and the sliding strip 3 can horizontally slide relative to the fixed plate 1 along with the seam crossing plate 21. The slide bar 3 is detachably fixed on the lower bottom surface of the inner end of the seam crossing plate 2. The slide bar 3 is arranged on the lower bottom surface of the inner end of the seam crossing plate 2 in a screwing mode through a plurality of screws 4 at intervals, a cushion pad 9 is arranged between the seam crossing plate 2 and the slide bar 3, a cushion pad embedding groove (not shown in the figure) is arranged on the bottom surface of the seam crossing plate 2, the cushion pad 9 is embedded into the cushion pad embedding groove (not shown in the figure), and the cushion pad 9 is made of rubber or other elastic materials. The width of the slide bar 3 is 4-10 cm. The material of the slide bar 3 is stainless steel, teflon plate or other materials with pressure resistance and wear resistance.
Example three: the other structure is the same as the first embodiment or the second embodiment, and the difference is that: the slide bar 3 can be a plurality of strips arranged on the lower bottom surface of the inner end of the seam crossing plate 2 at intervals.
Example four: the other structure is the same as the first embodiment or the second embodiment, and the difference is that: as shown in fig. 8, the cross slit plate 2 includes a plurality of blocks arranged in parallel on the cross slit plate 21, a shock absorbing assembly 5 is further arranged on the cross slit plate 21, the shock absorbing assembly 5 includes a fastening bolt 51, a shock absorbing spring 52 and a protector 53, the protector 53 includes a box body 531, the box body 531 has a cavity 532 with an upper end open, the shock absorbing spring 52 is sleeved on the fastening bolt 51, the fastening bolt 51 and the shock absorbing spring 52 are accommodated in the cavity 532, a cover plate 533 is arranged at the upper end of the box body 531, a gasket 54 is arranged between the shock absorbing spring 52 and the cover plate 533, the head of the screw of the fastening bolt 51 extends out of the cover plate 533, a rubber pad 6 is arranged between the cover plate 533 and the cross slit plate 21, a first bolt hole 211 is arranged on the cross slit plate 21, the head of the fastening bolt 51 passes through the.
Example five: the other structures are the same as the fourth embodiment, and the differences are as follows: as shown in fig. 6 and 7, the expansion joint device further comprises a longitudinal rotating assembly 7, the longitudinal rotating assembly 7 comprises a spherical bolt 71, a fixed cushion plate 72 and a sleeve 73 for fixing the bolt, a second bolt hole 212 is arranged in the middle of the outer end of the slit plate 21, the bottom surface of the second bolt hole 212 is matched with the arc-shaped surface of the spherical bolt 71, a third bolt hole 721 is arranged on the fixed cushion plate 72, an inwardly recessed groove 722 is arranged on the lower bottom surface of the fixed cushion plate 72, the second bolt hole 212, the third bolt hole 721 and the groove 722 are coaxially arranged, the groove 722 is communicated with the third bolt hole 721, the upper end of the sleeve 73 is embedded and fixed in the groove 722, an internal threaded hole 731 matched with the spherical bolt 71 is arranged in the center of the sleeve 73, the internal threaded hole 731 is coaxially arranged with the third bolt hole 721, the expansion joint device further comprises an anti-collision plate 8 located outside the slit plate 21, one end of the fixed cushion plate 72 is fixedly connected with the, the fixing shim plate 72 is fixed below the slit plate 21 by the spherical bolt 71 passing through the second bolt hole 212, the third bolt hole 721, and the internal thread hole 731 in this order.
Example six: the other structures are the same as those of the fifth embodiment, and the difference is that: as shown in fig. 9 and 10, the longitudinal rotating assembly 7 further includes two longitudinal rotating shafts 74, two arc-shaped grooves (not shown) are disposed on the fixed backing plate 72 and used for placing the longitudinal rotating shafts 74 respectively, the arc-shaped grooves (not shown) are disposed on two sides of the third bolt hole 721, a longitudinal section of the longitudinal rotating shaft 74 is semicircular, an opposite surface of the longitudinal rotating shaft 74 and the seam crossing plate 21 is a horizontal plane, and an upper end portion of the longitudinal rotating shaft 74 extends out of the arc-shaped grooves (not shown).
Claims (10)
1. The expansion joint device of the bridge comprises a fixed plate and a seam crossing plate, wherein the seam crossing plate is arranged above the fixed plate, and the inner side area of the seam crossing plate and the inner side area of the fixed plate are mutually superposed.
2. The expansion joint device of claim 1, wherein the number of the sliding strips is 1.
3. The expansion joint device of claim 2, wherein the sliding strip is welded to the lower bottom surface of the inner end of the gap-crossing plate.
4. The expansion joint device of claim 2, wherein the sliding strip is detachably fixed to the lower bottom surface of the inner end of the gap-crossing plate.
5. The expansion joint device of claim 4, wherein the sliding strip is fixed to the lower bottom surface of the inner end of the slot-spanning plate by a plurality of screws arranged at intervals, and a cushion is arranged between the slot-spanning plate and the sliding strip.
6. An expansion joint arrangement according to any one of claims 1 to 5, wherein said runner has a width of 4-10 cm.
7. The expansion joint device of claim 6, wherein the material of said sliding strip is stainless steel or teflon plate.
8. The apparatus as claimed in claim 1, wherein the cross-linking plate comprises a plurality of cross-linking plate members arranged side by side, the cross-linking plate members further comprise a damping member, the damping member comprises a fastening bolt, a damping spring and a protector, the protector comprises a housing, the housing has a cavity with an open upper end, the damping spring is sleeved on the fastening bolt, the fastening bolt and the damping spring are accommodated in the cavity, a cover plate is arranged at the upper end of the housing, a gasket is arranged between the damping spring and the cover plate, a head of a screw of the fastening bolt extends out of the cover plate, a rubber pad is arranged between the cover plate and the cross-linking plate members, a first bolt hole is arranged on the cross-linking plate member, and a head of the fastening bolt passes through the rubber pad, The first bolt hole is screwed and fixed through a nut.
9. The expansion joint device of a bridge according to claim 8, further comprising a longitudinal rotation assembly, wherein the longitudinal rotation assembly comprises a spherical bolt, a fixing pad and a sleeve for fixing the bolt, a second bolt hole is formed in the middle of the outer end of the seam crossing plate, the bottom surface of the second bolt hole is matched with the arc surface of the spherical bolt, a third bolt hole is formed in the fixing pad, an inwardly recessed groove is formed in the lower bottom surface of the fixing pad, the third bolt hole and the groove are coaxially arranged, the groove is communicated with the third bolt hole, the upper end of the sleeve is embedded and fixed in the groove, an internal thread hole matched with the spherical bolt is formed in the center of the sleeve, and the internal thread hole and the third bolt hole are coaxially arranged, the expansion joint device also comprises an anti-collision plate positioned on the outer side of the cross-slit plate, one end of the fixed backing plate is fixedly connected with the inner wall of the lower end of the anti-collision plate, and the fixed backing plate passes through the second bolt hole, the third bolt hole and the internal thread hole in sequence through the spherical bolt and is fixed below the cross-slit plate.
10. The expansion joint device of claim 9, wherein the longitudinal rotation assembly further comprises two longitudinal rotation shafts, the fixing pad plate is provided with two arc-shaped grooves for placing the longitudinal rotation shafts, the arc-shaped grooves are located on two sides of the third bolt hole, the longitudinal section of each longitudinal rotation shaft is semicircular, the opposite surfaces of the longitudinal rotation shaft and the slit crossing plate are horizontal planes, and the upper end of each longitudinal rotation shaft extends out of the arc-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922113707.4U CN211713666U (en) | 2019-11-29 | 2019-11-29 | Expansion joint device of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922113707.4U CN211713666U (en) | 2019-11-29 | 2019-11-29 | Expansion joint device of bridge |
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| Publication Number | Publication Date |
|---|---|
| CN211713666U true CN211713666U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922113707.4U Active CN211713666U (en) | 2019-11-29 | 2019-11-29 | Expansion joint device of bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853962A (en) * | 2021-03-05 | 2021-05-28 | 上海汇城建筑装饰有限公司 | Comb-shaped expansion device for bridge with longitudinal displacement and vertical rotation |
| CN112921799A (en) * | 2021-03-01 | 2021-06-08 | 成都高速公路建设开发有限公司 | Construction method for urban bridge cross longitudinal and transverse expansion joints |
-
2019
- 2019-11-29 CN CN201922113707.4U patent/CN211713666U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921799A (en) * | 2021-03-01 | 2021-06-08 | 成都高速公路建设开发有限公司 | Construction method for urban bridge cross longitudinal and transverse expansion joints |
| CN112853962A (en) * | 2021-03-05 | 2021-05-28 | 上海汇城建筑装饰有限公司 | Comb-shaped expansion device for bridge with longitudinal displacement and vertical rotation |
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