CN206157558U - Long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure - Google Patents
Long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure Download PDFInfo
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- CN206157558U CN206157558U CN201620820976.8U CN201620820976U CN206157558U CN 206157558 U CN206157558 U CN 206157558U CN 201620820976 U CN201620820976 U CN 201620820976U CN 206157558 U CN206157558 U CN 206157558U
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- viscous damper
- bridge
- isolation bearing
- pier
- hyperboloid
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Abstract
The utility model relates to a long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure. The antidetonation problem that the continuous bridge was striden by high earthquake intensity earthquake head of district the united nations general assembly is demanding prompt solution. The utility model discloses it subtracts isolation bearing and liquid viscous damper to set up the hyperboloid ball -type between the pier and the roof beam body, the hyperboloid ball -type subtracts isolation bearing and is located pier mound top central authorities, liquid viscous damper ring sets up in the hyperboloid ball -type and subtracts the isolation bearing periphery and lie in pier mound topside reason in week, and the slant of liquid viscous damper average level is arranged. The utility model discloses the cooperation uses the hyperboloid ball -type to subtract isolation bearing and liquid viscous damper, and the hyperboloid ball -type subtracts isolation bearing and mainly plays the shock insulation effect to having and making the roof beam body shake the back reset function, liquid viscous damper mainly plays the effect of energy dissipation absorbing, but the hyperboloid ball -type subtract isolation bearing and liquid viscous damper simultaneous control in the same direction as the bridge to with the earthquake reaction of horizontal bridge to two directions.
Description
Technical field
The utility model is related to bridge structure technical field of buildings, and in particular to a kind of long the United Nations General Assembly's Span Continuous beam bridge damper
With vibration absorption and isolation support co-ordinative construction.
Background technology
Certain length of high intensity Zone joins long span prestressed concrete continuous beam bridge, and span arrangement is（50+8×100+50）
M, pier high scope 15m～20m, it is desirable to set up defences according to rarely occurred earthquake, because the short long superstructure quality of this bridge pier is big, is adopted
Cannot meet shockproof requirements with conventional intensity antidetonation and tensility shock-resistant.
Seismic isolation design is extended due to being separated structure with the ground motion that may cause using seismic isolation device
The cycle of structure or the damping of increase structure, the response of bridge structure when substantially reducing coming earthquake, reduce beam portion and pass to
Pier and the seismic force on basis so that design more economical rationality, structural safety performance is higher so that seismic isolation design is got over
Carry out the high praise of more multiple-project teacher.
Shock insulation product is numerous for subtracting of applying on science of bridge building at present, and how to select to be applied to the product of bridge work point, and adopts
It is the problem for needing to research and solve with suitable arrangement form to give full play to damping and isolation effect.
The content of the invention
The purpose of this utility model is to provide a kind of long the United Nations General Assembly's Span Continuous beam bridge damper and vibration absorption and isolation support co-ordinative construction,
Solve the anti-seismic problem of high-intensity earthquake head of district the United Nations General Assembly Span Continuous beam bridge.
The technical scheme that the utility model is adopted for：
A kind of long the United Nations General Assembly's Span Continuous beam bridge damper and vibration absorption and isolation support co-ordinative construction, it is characterised in that：
Hyperboloid spheroidal bearer of shock absorption and insulation and fluid viscous damper are set between bridge pier and beam body；
Hyperboloid spheroidal bearer of shock absorption and insulation is located at bridge pier pier top central authorities；
It is arranged at hyperboloid spheroidal bearer of shock absorption and insulation periphery fluid viscous damper ring week and is located at bridge pier pier top edge, liquid
The equal level of body viscous damper is diagonally disposed.
Fluid viscous damper two ends are individually fixed in beam body bottom surface and bridge pier pier top by otic placode and bolt.
Fluid viscous damper supports pinner side to arrange two in bridge pier pier top, or the left and right sides is symmetrical arranged four.
The utility model has advantages below：
The utility model is combined by the way of setting using fluid viscous damper with hyperboloid spheroidal bearer of shock absorption and insulation, can be with
The advantage of two kinds of seismic isolation devices is given full play to, for beam portion and bridge pier, when the relative displacement of pier beam is maximum under geological process
Relative velocity is minimum, and relative velocity is maximum when relative displacement is minimum, and two kinds of seismic isolation devices are respectively velocity profile（Relative velocity is got over
Big output is bigger）With displacement type（The bigger output of relative displacement is bigger）So that the reaction under structural earthquake be constantly in subtract every
Under the effective control of shake device.Hyperboloid spheroidal bearer of shock absorption and insulation mainly plays extending structure cycle i.e. function of shock insulation, and can carry
For reset function after structure shake, fluid viscous damper only increases structural damping and does not increase the i.e. main offer cushioning effect of rigidity,
The two joint setting can have complementary advantages.Fluid viscous damper, to arrangement in a certain angle, is disposably solved along bridge with along bridge
To the Seismic Response Control problem with direction across bridge.
Description of the drawings
Fig. 1 is the facade layout drawing of utility model structure.
Fig. 2 is Section A-A figure.
In figure, Z1- hyperboloid spheroidal bearer of shock absorption and insulation, Z2- fluid viscous dampers.
Specific embodiment
The utility model is described in detail with reference to specific embodiment.
A kind of long the United Nations General Assembly's Span Continuous beam bridge damper that the utility model is related to and vibration absorption and isolation support co-ordinative construction, in bridge pier
Hyperboloid spheroidal bearer of shock absorption and insulation Z1 and fluid viscous damper Z2 are set and beam body between.
Hyperboloid spheroidal bearer of shock absorption and insulation Z1 is located at bridge pier pier top central authorities, custom requirements is met, with vertical supporting, translation
And turning power.
It is arranged at hyperboloid spheroidal bearer of shock absorption and insulation Z1 peripheries fluid viscous damper Z2 ring week and is located at bridge pier pier top side
Edge, the equal level of fluid viscous damper Z2 is diagonally disposed, with suitable bridge in 30 ° to 45 ° angles arrangements.Fluid viscous damper Z2
Two ends are individually fixed in beam body bottom surface and bridge pier pier top by otic placode and bolt.
Hyperboloid spheroidal bearer of shock absorption and insulation Z1 is used cooperatively with fluid viscous damper Z2, hyperboloid spheroidal bearer of shock absorption and insulation
Z1 acts primarily as function of shock insulation, and with reset function after shaking beam body, fluid viscous damper Z2 acts primarily as the work of energy-dissipating and shock-absorbing
With, hyperboloid spheroidal bearer of shock absorption and insulation Z1 and fluid viscous damper Z2 can control simultaneously along bridge to direction across bridge both direction
Earthquake response.
When pier top concrete and beam body concrete is poured, in advance in the embedded steel plate with sleeve in corresponding position.Treat beam
Body construction is completed, bearing install it is in place after, by fluid viscous damper by high-strength bolt bolt on pre-embedded steel slab, hyperboloid
Ball-type vibration reducing obstructing support base is identical with the mounting means of common bearing.
Whole device is adapted to the mode of operation under different operating modes：
1st, mode of operation under normal operating condition：
Hyperboloid spheroidal bearer of shock absorption and insulation is played and common bearing identical supporting role under normal operating condition, i.e. activity
Bearing or hold-down support play a role according to functional requirement set in advance, except situation about crossing in train impact mobile load or brake force
Lower fluid viscous damper is hardly had an effect.
2nd, mode of operation under frequently occurred earthquake state：
Beam body is input into seismic energy by bearing to bridge pier and basis under frequently occurred earthquake, due to beam body and the relative fortune of bridge pier
It is dynamic the hyperboloid spheroidal bearer of shock absorption and insulation generation sliding of movable pier position, damper internal piston is subjected to displacement and is consumed energy,
Because energy input is typically relatively small under frequently occurred earthquake, seismic isolation device power consumption effect is not very notable.
3rd, mode of operation under frequently occurred earthquake state is surmounted：
When surmounting frequently occurred earthquake, the shear pin of hold-down support is cut off becomes movable bearing support, full-bridge be floating system structure from
Cycle of shaking greatly extends, and beam body is huge by seismic energy that bearing inputs to bridge pier and basis under earthquake, beam body and bridge pier phase
Larger to movement velocity and displacement, fluid viscous damper plays significant damping simultaneously with hyperboloid spheroidal bearer of shock absorption and insulation
Power consumption is acted on, and after earthquake terminates, hyperboloid spheroidal bearer of shock absorption and insulation provides certain beam body reset function.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (2)
1. a kind of long the United Nations General Assembly's Span Continuous beam bridge damper and vibration absorption and isolation support co-ordinative construction, it is characterised in that：
Hyperboloid spheroidal bearer of shock absorption and insulation is set between bridge pier and beam body（Z1）And fluid viscous damper（Z2）；
Hyperboloid spheroidal bearer of shock absorption and insulation（Z1）Positioned at bridge pier pier top central authorities, two are arranged in front and back；
Fluid viscous damper（Z2）Ring week is arranged at hyperboloid spheroidal bearer of shock absorption and insulation（Z1）Periphery is simultaneously located at bridge pier pier top side
Edge, totally four；Fluid viscous damper（Z2）Level is diagonally disposed, fluid viscous damper（Z2）Bridge pier fixing end be located at
Hyperboloid spheroidal bearer of shock absorption and insulation（Z1）Outside, fluid viscous damper（Z2）Oblique two hyperboloid spheroidal bearer of shock absorption and insulation
（Z1）Between.
2. a kind of long the United Nations General Assembly's Span Continuous beam bridge damper according to claim 1 and vibration absorption and isolation support co-ordinative construction, it is special
Levy and be：
Fluid viscous damper（Z2）Two ends are individually fixed in beam body bottom surface and bridge pier pier top by otic placode and bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820976.8U CN206157558U (en) | 2016-08-01 | 2016-08-01 | Long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820976.8U CN206157558U (en) | 2016-08-01 | 2016-08-01 | Long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206157558U true CN206157558U (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620820976.8U Active CN206157558U (en) | 2016-08-01 | 2016-08-01 | Long united nations general assembly strides continuous bridge attenuator and subtracts isolation bearing and unites structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736185A (en) * | 2019-03-12 | 2019-05-10 | 防灾科技学院 | A kind of novel girder falling damper and the damping system containing it |
| CN111705625A (en) * | 2020-05-21 | 2020-09-25 | 中南大学 | Lead core rubber support and viscous damper combined shock absorption and isolation multi-span continuous beam bridge |
| CN112695625A (en) * | 2020-12-29 | 2021-04-23 | 朱锋 | Adopt high mound bridge of festival section of double-deck cable support to subtract shock insulation structure |
| CN112962425A (en) * | 2021-02-08 | 2021-06-15 | 北京工业大学 | Bridge shock absorber |
| CN117344586A (en) * | 2023-11-16 | 2024-01-05 | 广东省建筑设计研究院有限公司 | Underground track vibration reduction method and structure system based on vibration reduction steel pipe pile |
-
2016
- 2016-08-01 CN CN201620820976.8U patent/CN206157558U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736185A (en) * | 2019-03-12 | 2019-05-10 | 防灾科技学院 | A kind of novel girder falling damper and the damping system containing it |
| CN109736185B (en) * | 2019-03-12 | 2023-12-26 | 防灾科技学院 | Novel beam falling prevention damper and damping system comprising same |
| CN111705625A (en) * | 2020-05-21 | 2020-09-25 | 中南大学 | Lead core rubber support and viscous damper combined shock absorption and isolation multi-span continuous beam bridge |
| CN112695625A (en) * | 2020-12-29 | 2021-04-23 | 朱锋 | Adopt high mound bridge of festival section of double-deck cable support to subtract shock insulation structure |
| CN112962425A (en) * | 2021-02-08 | 2021-06-15 | 北京工业大学 | Bridge shock absorber |
| CN117344586A (en) * | 2023-11-16 | 2024-01-05 | 广东省建筑设计研究院有限公司 | Underground track vibration reduction method and structure system based on vibration reduction steel pipe pile |
| CN117344586B (en) * | 2023-11-16 | 2024-05-10 | 广东省建筑设计研究院有限公司 | Underground track vibration reduction method and structure system based on vibration reduction steel pipe pile |
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