CN201386253Y - Temporary connecting device of girder section top plates of steel box girders of suspension bridge - Google Patents
Temporary connecting device of girder section top plates of steel box girders of suspension bridge Download PDFInfo
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- CN201386253Y CN201386253Y CN200920113880U CN200920113880U CN201386253Y CN 201386253 Y CN201386253 Y CN 201386253Y CN 200920113880 U CN200920113880 U CN 200920113880U CN 200920113880 U CN200920113880 U CN 200920113880U CN 201386253 Y CN201386253 Y CN 201386253Y
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Abstract
The utility model relates to the fields of bridge engineering and disaster prevention project, and provides a temporary connecting device of girder section top plates of steel box girders of a suspension bridge; the two adjacent top plates of the steel box girders (1) are respectively provided with two bearing plates (2), and the two steel box girders (1) are connected with each other by two pull rods (5) passing through the four bearing plates (2); the two pull rods (5) are symmetrically arranged at left and right by taking the center of the bearing plates (2) as a middle point; four longitudinal linking plates (3) are respectively installed between the two bearing plates (2) of each steel box girder (1), wherein the left side and the right side of each pull rod (5) are respectively provided with a longitudinal linking plate (3); and the pull rod (5) at the outer side of the bearing plate (2) is assembled with a force-transmission nut (4), and the pull rod (5) at the inner side of each bearing plate (2) is assembled with a force-transmission nut (8). The temporary connecting device of the girder section top plates of the steel box girders of the suspension bridge has the advantages of novel structure and strong bearing capacity.
Description
Technical field
The utility model relates to bridge engineering and the engineering field of taking precautions against natural calamities, specifically a kind of interim linkage of suspension bridge steel case beam beam section top board.
Background technology
Suspension bridge is in when construction and close up the back in order to adjust linear needs, and usually at the interim linkage of the intersegmental employing of steel case beam beam, when not needing interim linkage, linkage can be removed.The interim linkage of steel case back plate is installed on the end face of adjacent steel case beam, generally is made up of pull bar and the steel plate framework that is welded on beam section edge, thereby forms a kind of post limbs and be with setting up the beam section.When steel case beam beam section took place in opposite directions with opposing motion, the interim connector of top board that is arranged on the case beam was converted to a power with the moment of flexure of beam section, and is born by the loaded plate that pull bar passes on the steel plate framework.The interim linkage structure of existing suspension bridge steel case back plate is as follows: on two adjacent steel case back plates 2 loaded plates are set respectively, two steel case beams connect by 2 pull bars that run through 4 loaded plates respectively, 2 pull bars are that the center is symmetrical set with the loaded plate mid point, between 2 loaded plates on each steel case beam 4 vertical yoke plates are installed all, wherein the left and right sides of every pull bar is installed 1 respectively, all is equipped with the power transmission nut on the pull bar in the loaded plate outside.Because suspension bridge is generally built in the coastal area, the big internal force of its beam section under strong wind atmosphere may cause the interim connector of top board to be damaged or come off, because only at loaded plate outside assembling power transmission nut, two loaded plates on each steel case beam all are stressed separately, therefore there is the hypodynamic problem of carrying in top board, if under strong wind atmosphere, be damaged, the wind resistance safety of setting up the beam section will be threatened directly.
Summary of the invention
The purpose of this utility model is in order to solve the hypodynamic technical problem of carrying that the interim linkage of existing suspension bridge steel case beam beam section top board exists, to provide a kind of supporting capacity the strong interim linkage of suspension bridge steel case beam beam section top board.
In order to realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of interim linkage of suspension bridge steel case beam beam section top board, on adjacent two steel case back plates 2 loaded plates are set respectively, two steel case beams link to each other by 2 pull bars that run through 4 loaded plates respectively, 2 pull bars are that the center is symmetrical set with the loaded plate mid point, between 2 loaded plates on each steel case beam 4 vertical yoke plates are installed all, wherein the left and right sides of every pull bar is installed 1 vertical yoke plate respectively, all be equipped with the power transmission nut on the pull bar in the loaded plate outside, all be equipped with the power transmission nut on the pull bar of described every loaded plate inboard.The power transmission nut is all assembled in both sides inside and outside loaded plate, and it is stressed to make two loaded plates to unite, and has directly improved the bearing capacity of linkage.
As preferably, all be welded with stull between the vertical yoke plate of the described every pull bar left and right sides, the stull position is in the intersection of vertical yoke plate and loaded plate inside wall, and the stull position also can be in the middle part of vertical yoke plate.Vertical yoke plate is subjected to the big moment of flexure that loaded plate applies in the distortion of restriction loaded plate, produced bigger stress concentrates in the junction of two plates, stull can improve the stressed of vertical yoke plate by the mode that limits its distortion, to improve the total bearing capacity of linkage.
As preferably, the junction of described vertical yoke plate and loaded plate is welded with the rib of putting more energy into, and the rib of putting more energy into can be eliminated vertical yoke plate and concentrate with the stress of loaded plate junction, improves the stress distribution of junction by the mode of reinforcement local stiffness.
Owing to adopted the interim linkage of suspension bridge steel case beam beam section top board of above-mentioned technical scheme, had novel structure, the advantage that supporting capacity is strong.
Description of drawings
Fig. 1: the structural representation of embodiment of the present utility model.
The specific embodiment
Make a detailed explanation below in conjunction with 1 pair of specific embodiment of the present utility model of accompanying drawing.
The interim linkage of a kind of suspension bridge steel case beam beam section top board as shown in Figure 1, on adjacent two steel case beam 1 top boards 2 loaded plates 2 are set respectively, two steel case beams 1 link to each other by 2 pull bars 5 that run through 4 loaded plates 2 respectively, and 2 pull bars 5 are that the center is symmetrical set with loaded plate 2 mid points.4 vertical yoke plates 3 all are installed between 2 loaded plates 2 on each steel case beam 1, wherein the left and right sides of every pull bar 5 is installed 1 vertical yoke plate 3 respectively, all be equipped with power transmission nut 4 on the pull bar 5 in loaded plate 2 outsides, all be equipped with power transmission nut 8 on the pull bar 5 of every loaded plate 2 inboards.All be welded with stull 6 between the vertical yoke plate 3 of every pull bar 5 left and right sides, stull 6 positions are in the intersection of vertical yoke plate 3 and loaded plate 2 inside walls.The junction of vertical yoke plate 3 and loaded plate 2 is welded with the rib 7 of putting more energy into.
When there is relative motion in two steel case beams 1, because on the loaded plate 21, preceding loaded plate 21 produced after the distortion before the effect of inside and outside bilateral power transmission nut 4,8, power can at first be passed to, axle power just can continue to be delivered on the loaded plate 22 of back by pull bar 5, and two loaded plates 2 are just joined together stressed jointly.The interim linkage in above-mentioned bottom surface has adopted the dual reinforcement measure of the stull 6 and the rib 7 of putting more energy into, vertical yoke plate 3 distortion and stressed improvement are significant, compare original member, under same function power, the member amount of deflection decrease by 55.64%, maximum stress decreases by 41.16%, vertical yoke plate 3 upper stress concentrated areas reduce, integrated stress distributes and improves, and lower stress level helps the lifting of member total bearing capacity, has also strengthened safety factor simultaneously.
The foregoing description only is a this patent embodiment preferably, and for example the position of stull 6 also can be welded on the middle part of vertical yoke plate 3, and the intersection that also can be in vertical yoke plate 3 and loaded plate 2 inside walls is to the zone between the middle part of vertical yoke plate 3.The structure that all employing the technical program are described, feature and the variation on its spiritual principle, modification all belong to the protection domain of this patent.
Claims (5)
1. the interim linkage of a suspension bridge steel case beam beam section top board, on adjacent two steel case beams (1) top board 2 loaded plates (2) are set respectively, two steel case beams (1) link to each other by 2 pull bars (5) that run through 4 loaded plates (2) respectively, 2 pull bars (5) are that the center is symmetrical set with loaded plate (2) mid point, between 2 loaded plates (2) on each steel case beam (1) 4 vertical yoke plates (3) are installed all, wherein the left and right sides of every pull bar (5) is installed 1 vertical yoke plate (3) respectively, all be equipped with power transmission nut (4) on the pull bar (5) in loaded plate (2) outside, it is characterized in that all being equipped with power transmission nut (8) on the inboard pull bar (5) of described every loaded plate (2).
2. the interim linkage of a kind of suspension bridge steel case beam beam section top board according to claim 1 is characterized in that all being welded with stull (6) between the vertical yoke plate (3) of described every pull bar (5) left and right sides.
3. the interim linkage of a kind of suspension bridge steel case beam beam section top board according to claim 1 is characterized in that described stull (6) position is in the intersection of vertical yoke plate (3) and loaded plate (2) inside wall.
4. the interim linkage of a kind of suspension bridge steel case beam beam section top board according to claim 1 is characterized in that described stull (6) position is in the middle part of vertical yoke plate (3).
5. the interim linkage of a kind of suspension bridge steel case beam beam section top board according to claim 1 and 2 is characterized in that the junction of described vertical yoke plate (3) and loaded plate (2) is welded with the rib of putting more energy into (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113880U CN201386253Y (en) | 2009-02-19 | 2009-02-19 | Temporary connecting device of girder section top plates of steel box girders of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113880U CN201386253Y (en) | 2009-02-19 | 2009-02-19 | Temporary connecting device of girder section top plates of steel box girders of suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386253Y true CN201386253Y (en) | 2010-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920113880U Expired - Fee Related CN201386253Y (en) | 2009-02-19 | 2009-02-19 | Temporary connecting device of girder section top plates of steel box girders of suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386253Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724246A (en) * | 2017-11-03 | 2018-02-23 | 天津市东泽天润建筑有限公司 | The interim contraposition fixing device and its application method of a kind of steel box-girder segmented assembly |
| CN110528392A (en) * | 2019-08-28 | 2019-12-03 | 中铁大桥局集团有限公司 | A kind of erection method of the full welding steel purlin stiff girder of large-scale suspension bridge |
-
2009
- 2009-02-19 CN CN200920113880U patent/CN201386253Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724246A (en) * | 2017-11-03 | 2018-02-23 | 天津市东泽天润建筑有限公司 | The interim contraposition fixing device and its application method of a kind of steel box-girder segmented assembly |
| CN107724246B (en) * | 2017-11-03 | 2019-05-14 | 天津市东泽天润建筑有限公司 | A kind of interim contraposition fixing device and its application method of steel box-girder segmented assembly |
| CN110528392A (en) * | 2019-08-28 | 2019-12-03 | 中铁大桥局集团有限公司 | A kind of erection method of the full welding steel purlin stiff girder of large-scale suspension bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20140219 |