CN102787554A - Anti-seismic abutment structure along bridge - Google Patents
Anti-seismic abutment structure along bridge Download PDFInfo
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- CN102787554A CN102787554A CN2012103088829A CN201210308882A CN102787554A CN 102787554 A CN102787554 A CN 102787554A CN 2012103088829 A CN2012103088829 A CN 2012103088829A CN 201210308882 A CN201210308882 A CN 201210308882A CN 102787554 A CN102787554 A CN 102787554A
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Abstract
The invention discloses an anti-seismic abutment structure along a bridge. The structure comprises a pier, a support cushion block and a bridge superstructure; and the support cushion block is arranged between the pier and the bridge superstructure. The abutment structure further comprises a back abutment approach slab arranged at the upper side of the pier; the bridge superstructure is provided with a flange corresponding to the back abutment approach slab; a pre-destroyed boss is arranged between the pier and the back abutment approach slab; a groove matched with the pre-destroyed boss is arranged in the back abutment approach slab; and a contraction joint is arranged between the bridge superstructure and the back abutment approach slab. The anti-seismic abutment structure along the bridge, disclosed by the invention, improves the seismic capability of the bridge in a direction along the bridge. Meanwhile, the anti-seismic abutment structure along the bridge also has the characteristics of simple structure and convenience for construction.
Description
Technical field
The present invention relates to the bridge earthquake resistance technical field, relate in particular to a kind of suitable bridge to antidetonation abutment structure.
Background technology
After the abutment structure bumps earthquake, if stage body tilts, can increase bridge span apart from also causing falling the beam earthquake, cause road traffic to interrupt; Even do not fall beam, the extensive damage of the abutment and the roadbed part that is connected also can bring big difficulty to road and shake back reconstruction.
In earthquake, bridge except that receiving vertical geological process, also receive simultaneously horizontal earthquake along bridge to and direction across bridge (to being meant bridge axis direction, direction across bridge refers to the direction perpendicular to the bridge axis along the bridge) effect of component.Along bridge to the effect of direction across bridge component under have a following potential safety hazard: bridge superstructure tilts with the mutual impact wreckage of abutment, abutment, along bridge to beam and the roadbed that the is connected extensive damage partly etc. of falling.
Abutment is the weak link in the bridge construction, common bridge after meeting with violent earthquake, and abutment all can receive serious destruction.Abutment is the support section at bridge two ends, is the key position that connects roadbed and bridge construction.Because abutment vertical, horizontal rigidity is general bigger, is difficult to form effective ductility shock absorbing mechanism, fairness limit is less relatively.
Therefore; Those skilled in the art is devoted to develop a kind of suitable bridge to antidetonation abutment structure; Overcome along bridge to seismic damage, further overcome its bridge superstructure and the mutual impact wreckage of abutment, abutment tilt, along bridge to beam and the roadbed that the is connected defectives such as extensive damage partly of falling.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provide a kind of along bridge to antidetonation abutment structure, improve bridge along bridge to shock resistance.
For realizing above-mentioned purpose, the invention provides a kind of suitable bridge to antidetonation abutment structure, comprise abutment, bearing cushion block and bridge superstructure, said bearing cushion block is arranged between said abutment and the said bridge superstructure; Wherein, said abutment structure also comprises attachment strap behind the platform, and attachment strap is arranged on said abutment upside behind the said platform, and the attachment strap position is provided with flange behind the corresponding said platform of said bridge superstructure; Be provided with one behind said abutment and the said platform between the attachment strap and destroy boss in advance; Attachment strap is provided with the groove that cooperates with said preparatory destruction boss behind the said platform; Be provided with a shrinkage joint between the attachment strap behind said bridge superstructure and the said platform.
Preferable, said preparatory destruction boss and said abutment are Construction integration.
Preferable, the spacing of attachment strap is 50-60mm behind said flange and the said platform.
Preferable, the said flange of said bridge superstructure is to reserve the slit of 100～150mm between lower part beam-ends face and the said abutment.
The invention has the beneficial effects as follows:
Under geological process, said bridge superstructure is moving to direction along bridge, attachment strap behind the said flange bump platform; Destroy boss in advance shear failure takes place earlier; Then attachment strap has been reserved necessary relative motion space by the detachment abutment thereby give between bridge superstructure and the abutment behind the platform, thereby discharges seismic energy; The road of having avoided rigid collision to damage abutment and link to each other, improve bridge along bridge to shock resistance.
Simultaneously, the present invention also has simple in structure, the characteristics of easy construction.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the local enlarged diagram in A place of Fig. 1.
The specific embodiment
Like Fig. 1, shown in Figure 2, suitable bridge of the present invention comprises abutment 1, bearing cushion block 5 and bridge superstructure 4 to antidetonation abutment structure one specific embodiment, and bearing cushion block 5 is arranged between bridge pier 1 and the bridge superstructure 4.
Wherein, the abutment structure also comprises attachment strap 3 behind the platform, and attachment strap 3 is arranged on abutment 1 upside behind the platform, and attachment strap 3 positions are provided with flange 7 behind the bridge superstructure 4 corresponding platforms; Be provided with one behind abutment 1 and the platform between the attachment strap 3 and destroy boss 2 in advance.
Concrete, destroy boss 2 in advance and can be Construction integration, the groove that attachment strap 3 is provided with and preparatory destruction boss 2 cooperates behind the platform with abutment 1.
As shown in Figure 3, be provided with a shrinkage joint 6 behind bridge superstructure 4 and the platform between the attachment strap 3.The spacing L of attachment strap 3 is 50～60mm behind flange 7 and the platform, and flange 7 high H are 200mm.
Superstructure 4 is 100-150mm at flange 7 following beam-ends identity distance abutment 1 preferable distance range L2.
Present embodiment is when suffering geological process, and bridge superstructure 4 is moving to direction along bridge, attachment strap 3 behind the flange 7 bump platforms; Destroy boss 2 in advance shear failure takes place earlier; Then attachment strap 3 has been reserved necessary relative motion space by detachment abutment 1 thereby give between bridge superstructure 4 and the abutment 1 behind the platform, thereby discharges seismic energy; The road of having avoided rigid collision to damage abutment and link to each other, improve bridge along bridge to shock resistance.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (4)
1. a suitable bridge comprises abutment, bearing cushion block and bridge superstructure to antidetonation abutment structure, and said bearing cushion block is arranged between said abutment and the said bridge superstructure; It is characterized in that: said abutment structure also comprises attachment strap behind the platform, and attachment strap is arranged on said abutment upside behind the said platform, and the attachment strap position is provided with flange behind the corresponding said platform of said bridge superstructure; Be provided with one behind said abutment and the said platform between the attachment strap and destroy boss in advance; Attachment strap is provided with the groove that cooperates with said preparatory destruction boss behind the said platform; Be provided with a shrinkage joint between the attachment strap behind said bridge superstructure and the said platform.
2. suitable bridge as claimed in claim 1 is to antidetonation abutment structure, and it is characterized in that: said preparatory destruction boss and said abutment are Construction integration.
3. suitable bridge as claimed in claim 1 is to antidetonation abutment structure, and it is characterized in that: the spacing of attachment strap is 50-60mm behind said flange and the said platform.
4. suitable bridge as claimed in claim 1 is to antidetonation abutment structure, and it is characterized in that: the said flange of said bridge superstructure is to reserve the slit of 100～150mm between lower part beam-ends face and the said abutment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308882.9A CN102787554B (en) | 2012-08-27 | 2012-08-27 | Anti-seismic abutment structure along bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308882.9A CN102787554B (en) | 2012-08-27 | 2012-08-27 | Anti-seismic abutment structure along bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102787554A true CN102787554A (en) | 2012-11-21 |
| CN102787554B CN102787554B (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210308882.9A Active CN102787554B (en) | 2012-08-27 | 2012-08-27 | Anti-seismic abutment structure along bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN102787554B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313996A (en) * | 2014-09-30 | 2015-01-28 | 上海市政工程设计研究总院（集团）有限公司 | Bridge abutment knocking-off structure |
| CN111441236A (en) * | 2020-04-09 | 2020-07-24 | 罗海军 | A attachment strap structure for bridgehead bump car |
| CN111472261A (en) * | 2020-04-27 | 2020-07-31 | 孟灵鑫 | Combined supporting structure for transverse earthquake resistance of three-span bridge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1761852A1 (en) * | 1990-09-10 | 1992-09-15 | Горловский филиал Донецкого политехнического института | Bridge conjugation structure with approach embankment to worked areas |
| KR20000032358A (en) * | 1998-11-13 | 2000-06-15 | 최한중 | Structure for abutment of non-bridge seat and non-elastic joined type |
| JP2005330688A (en) * | 2004-05-19 | 2005-12-02 | Ps Mitsubishi Construction Co Ltd | Aseismatic reinforcing method and structure for bridge |
| CN201169744Y (en) * | 2008-02-22 | 2008-12-24 | 上海市政工程设计研究总院 | Bridge abutment structure |
-
2012
- 2012-08-27 CN CN201210308882.9A patent/CN102787554B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1761852A1 (en) * | 1990-09-10 | 1992-09-15 | Горловский филиал Донецкого политехнического института | Bridge conjugation structure with approach embankment to worked areas |
| KR20000032358A (en) * | 1998-11-13 | 2000-06-15 | 최한중 | Structure for abutment of non-bridge seat and non-elastic joined type |
| JP2005330688A (en) * | 2004-05-19 | 2005-12-02 | Ps Mitsubishi Construction Co Ltd | Aseismatic reinforcing method and structure for bridge |
| CN201169744Y (en) * | 2008-02-22 | 2008-12-24 | 上海市政工程设计研究总院 | Bridge abutment structure |
Non-Patent Citations (1)
| Title |
|---|
| 黄斌: "高速公路桥头搭板的改进设计", 《公路》, no. 1, 31 January 2003 (2003-01-31) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313996A (en) * | 2014-09-30 | 2015-01-28 | 上海市政工程设计研究总院（集团）有限公司 | Bridge abutment knocking-off structure |
| CN111441236A (en) * | 2020-04-09 | 2020-07-24 | 罗海军 | A attachment strap structure for bridgehead bump car |
| CN111472261A (en) * | 2020-04-27 | 2020-07-31 | 孟灵鑫 | Combined supporting structure for transverse earthquake resistance of three-span bridge |
| CN111472261B (en) * | 2020-04-27 | 2021-09-14 | 孟灵鑫 | Combined supporting structure for transverse earthquake resistance of three-span bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102787554B (en) | 2014-07-09 |
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Address after: 200011 Tibet South Road, Shanghai, No. 1170, No. Patentee after: Shanghai urban construction design & Research Institute (Group) Co., Ltd. Address before: 200125 Dongfang Road, Shanghai, Pudong New Area, No. 3447 Patentee before: Shanghai Urban Construction Design & Research Institute |
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