CN203603042U - Function separation type large-span continuous beam isolation bearing - Google Patents
Function separation type large-span continuous beam isolation bearing Download PDFInfo
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- CN203603042U CN203603042U CN201320776625.8U CN201320776625U CN203603042U CN 203603042 U CN203603042 U CN 203603042U CN 201320776625 U CN201320776625 U CN 201320776625U CN 203603042 U CN203603042 U CN 203603042U
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- damper
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- bearing
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- steel slab
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- 238000002955 isolation Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 3
- 230000000116 mitigating effect Effects 0.000 abstract 2
- 238000003754 machining Methods 0.000 abstract 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a function separation type large-span continuous beam isolation bearing. Currently, hyperboloid spherical type steel bearings or lead rubber bearings are adopted by large-span bridges for seismic mitigation and absorption. The isolation bearings are high in manufacturing cost due to complex structures and high manufacturing precision requirements. According to the function separation type large-span continuous beam isolation bearing, a steel bearing is fixed between a beam body and pier top, dampers are arranged on the periphery of the steel bearing, the two ends of each damper are fixed between the beam body and the pier top, the dampers on the periphery of the steel bearing are arranged on the two horizontal sides and the two longitudinal sides of the steel bearing respectively, and the dampers all point to the periphery of the steel bearing from the steel bearing itself. Compared with the traditional hyperboloid spherical type steel bearings or the lead rubber bearings, the function separation type large-span continuous beam isolation bearing overcomes the defects that an existing bearing system is complex in structure, high in requirement for machining precision, and high in manufacturing cost or a bearing is low in rigidity, is high in structure rigidity, separates the supporting function and the energy dissipation and seismic mitigation function, and is clearer in structural stress, and simpler in structure.
Description
Technical field
the utility model belongs to bridge construction technical field of buildings, is specifically related to the large span continuous beam vibration absorption and isolation support that a kind of function separates.
Background technology
The anti-seismic technology of large Span Continuous beam bridge is always the key link of design.Subtract seismic isolation technology and be applied to the earthquake response that can significantly reduce structure on bridge, ensure structural safety, reduce investment outlay.At present to subtract the shock insulation means that adopt be to adopt the vibration absorption and isolation supports such as hyperboloid ball shaped steel bearing or lead core rubber support to Loads of Long-span Bridges more, this type of bearing or due to complex structure, to make required precision high, causes cost high; Or because the reasons such as bearing rigidity is low have limited its range of application in large span continuous beam.
Summary of the invention
The purpose of this utility model is to provide the large span continuous beam vibration absorption and isolation support that a kind of function separates, and makes Bearing Seat Force and subtract shock insulation function to separate, stressed clear and definite simple.
The technical scheme that the utility model adopts is:
The large span continuous beam vibration absorption and isolation support that function separates, includes steel support, it is characterized in that:
Steel support is fixed between beam body and pier top, and steel support surrounding arranges damper, and damper two ends are individually fixed between beam body and pier top.
The upper and lower base plate of steel support pushes up pre-buried pier top pre-embedded steel slab with the pre-buried beam body pre-embedded steel slab in beam body bottom surface and pier respectively and fixes.
The damper of steel support surrounding setting lays respectively at both lateral sides and longitudinal both sides of steel support, all points to steel support surrounding from steel support;
The damper of both lateral sides is lateral damper, and longitudinally the damper of both sides is longitudinal damper.
Dun Ding is upper, the surrounding of steel support is provided with damper Dun Ding and connects pre-embedded steel slab; The periphery that beam body bottom surface, damper Dun Ding connect pre-embedded steel slab is provided with damper beam body connection pre-embedded steel slab;
Damper one end connects otic placode by Dun Ding and is fixed on damper Dun Ding connection pre-embedded steel slab, and the other end connects otic placode by beam body and is fixed on damper beam body connection pre-embedded steel slab.
Damper beam body connection pre-embedded steel slab is connected pre-embedded steel slab with damper Dun Ding and is provided with sleeve;
Beam body connection otic placode is connected pre-embedded steel slab with damper beam body, Dun Ding connection otic placode is connected pre-embedded steel slab with damper Dun Ding and all fixes by high-strength bolt.
The utlity model has following advantage:
The utility model is compared with traditional hyperboloid ball shaped steel bearing or lead core rubber support, improve existing support system Structural Tectonics complexity, made the defect that processing request precision is high, cost is high or bearing rigidity is low, the rigidity of structure is large, the support function of bearing is separated with energy-dissipating and shock-absorbing function, structure stress is clearer and more definite, construct simpler, be easy to change, reduced cost.
Accompanying drawing explanation
Fig. 1 is the facade arrangement diagram of utility model structure.
Fig. 2 is A-A sectional view.
In figure, 1-steel support, 2-longitudinal damper, 3-lateral damper, 4-beam body, 5-Dun Ding, 6-beam body connects otic placode, and 7-Dun Ding connects otic placode, 8-beam body pre-embedded steel slab, 9-pier top pre-embedded steel slab, 10-damper beam body connects pre-embedded steel slab, and 11-damper Dun Ding connects pre-embedded steel slab.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in detail.
The large span continuous beam vibration absorption and isolation support that a kind of function that the utility model relates to separates, include steel support 1, steel support 1 is fixed between beam body 4 and pier top 5, and the upper and lower base plate of steel support 1 pushes up 5 pre-buried pier top pre-embedded steel slabs 9 with the pre-buried beam body pre-embedded steel slab 8 in beam body 4 bottom surfaces and pier respectively and fixes.Steel support 1 surrounding arranges damper, and damper two ends are individually fixed between beam body 4 and pier top 5.Damper lays respectively at both lateral sides and longitudinal both sides of steel support 1, all points to steel support 1 surrounding from steel support 1.The damper of both lateral sides is lateral damper 3, and longitudinally the damper of both sides is longitudinal damper 2.All dampers are liquid viscous damping device.
Pier pushes up on 5, the surrounding of steel support 1 is provided with damper Dun Ding and connects pre-embedded steel slab 11; The periphery that beam body 4 bottom surfaces, damper Dun Ding connect pre-embedded steel slab 11 is provided with damper beam body connection pre-embedded steel slab 10.Damper one end connects otic placode 7 by Dun Ding and is fixed on damper Dun Ding connection pre-embedded steel slab 11, and the other end connects otic placode 6 by beam body and is fixed on damper beam body connection pre-embedded steel slab 10.Damper beam body connection pre-embedded steel slab 10 is connected pre-embedded steel slab 11 with damper Dun Ding and is provided with sleeve; Beam body connection otic placode 6 is connected pre-embedded steel slab 10 with damper beam body, Dun Ding connection otic placode 7 is connected pre-embedded steel slab 11 with damper Dun Ding and all fixes by high-strength bolt.
Four dampers of a steel support 1 and surrounding can be only set between beam body 4 and pier top 5, two steel supports 1 also can be set as shown in Figure 2, because two steel support 1 adjacent positions do not need to arrange damper, therefore each steel support 1 only has three dampers around, as figure distributes.
The utility model adopts ordinary steel bearing to provide support the pattern that provides the function of energy-dissipating and shock-absorbing to separate with damper, the supporting role of large span continuous beam bridge seat safety can effectively bring into play earthquake time.
In the time building pier top concrete and beam body concrete, bury the steel plate with sleeve underground at corresponding position in advance.Until beam body construction complete, after bearing installation in position, by damper by high-strength bolt bolt on pre-embedded steel slab.
Whole device can adapt to the mode of operation under different operating modes:
1, mode of operation under normal operating condition:
Under normal operating condition, ordinary steel bearing is brought into play due supporting role, and freely movable bearing or fixed bearing play a role according to predefined functional requirement, and liquid viscous damping device is except having an effect hardly under braking force of train or tractive force effect.
2, mode of operation under frequently occurred earthquake state:
Frequently occurred earthquake underbeam body is inputted seismic energy by bearing to bridge pier and basis, the relative motion of beam body and bridge pier is subjected to displacement liquid viscous damping device internal piston to consume energy, because energy input under frequently occurred earthquake is generally relatively little, the power consumption effect of liquid viscous damping device is very not remarkable.
3, mode of operation under rarely occurred earthquake state:
Rarely occurred earthquake underbeam body input to bridge pier by bearing and basic seismic energy huge, beam body and bridge pier speed of related movement are large, liquid viscous damping device plays a role obviously.If now large span continuous beam anchor block and beam body without relative displacement cause anchor block and basic stress excessive, when seismic design is still extremely controlled, can consider to allow the shear pin of fixed bearing cut off and become freely movable bearing, be equivalent to full-bridge and longitudinally do not establish fixed bearing, full-bridge consumes energy by bearing frictional resistance and liquid viscous damping device.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (5)
1. the large span continuous beam vibration absorption and isolation support that function separates, includes steel support (1), it is characterized in that:
Steel support (1) is fixed between beam body (4) and Dun Ding (5), and steel support (1) surrounding arranges damper, and damper two ends are individually fixed between beam body (4) and Dun Ding (5).
2. the large span continuous beam vibration absorption and isolation support that a kind of function according to claim 1 separates, is characterized in that:
The upper and lower base plate of steel support (1) fixes with the pre-buried beam body pre-embedded steel slab (8) in beam body (4) bottom surface and the pre-buried pier top pre-embedded steel slab (9) of Dun Ding (5) respectively.
3. the large span continuous beam vibration absorption and isolation support that a kind of function according to claim 2 separates, is characterized in that:
The damper of steel support (1) surrounding setting lays respectively at both lateral sides and longitudinal both sides of steel support (1), all points to steel support (1) surrounding from steel support (1);
The damper of both lateral sides is lateral damper (3), and longitudinally the damper of both sides is longitudinal damper (2).
4. the large span continuous beam vibration absorption and isolation support that a kind of function according to claim 3 separates, is characterized in that:
Dun Ding (5) is upper, the surrounding of steel support (1) is provided with damper Dun Ding and connects pre-embedded steel slab (11); The periphery that beam body (4) bottom surface, damper Dun Ding connect pre-embedded steel slab (11) is provided with damper beam body connection pre-embedded steel slab (10);
Damper one end connects otic placode (7) by Dun Ding and is fixed on damper Dun Ding connection pre-embedded steel slab (11), and the other end connects otic placode (6) by beam body and is fixed on damper beam body connection pre-embedded steel slab (10).
5. the large span continuous beam vibration absorption and isolation support that a kind of function according to claim 4 separates, is characterized in that:
Damper beam body connection pre-embedded steel slab (10) is connected pre-embedded steel slab (11) and is provided with sleeve with damper Dun Ding;
Beam body connection otic placode (6) is connected pre-embedded steel slab (10) with damper beam body, Dun Ding connection otic placode (7) is connected pre-embedded steel slab (11) and all fixes by high-strength bolt with damper Dun Ding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776625.8U CN203603042U (en) | 2013-12-02 | 2013-12-02 | Function separation type large-span continuous beam isolation bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776625.8U CN203603042U (en) | 2013-12-02 | 2013-12-02 | Function separation type large-span continuous beam isolation bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603042U true CN203603042U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320776625.8U Expired - Lifetime CN203603042U (en) | 2013-12-02 | 2013-12-02 | Function separation type large-span continuous beam isolation bearing |
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| CN (1) | CN203603042U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452577A (en) * | 2014-12-24 | 2015-03-25 | 福州大学 | Pier and bent cap structure capable of improving lateral seismic performance of beam bridge and construction method |
| CN105544380A (en) * | 2016-01-29 | 2016-05-04 | 石家庄铁道大学 | Seismic-mitigation-and-isolation control method and structure with self-reset function |
| CN105735115A (en) * | 2016-03-01 | 2016-07-06 | 石家庄铁道大学 | Connecting shock absorption device for continuous girder bridge zone control |
| CN111455820A (en) * | 2020-04-10 | 2020-07-28 | 广东省交通规划设计研究院股份有限公司 | Seismic isolation and reduction system and bridge |
| CN114411531A (en) * | 2022-01-26 | 2022-04-29 | 贵州路桥集团有限公司 | Anti-seismic device and anti-seismic structure for bridge |
-
2013
- 2013-12-02 CN CN201320776625.8U patent/CN203603042U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452577A (en) * | 2014-12-24 | 2015-03-25 | 福州大学 | Pier and bent cap structure capable of improving lateral seismic performance of beam bridge and construction method |
| CN105544380A (en) * | 2016-01-29 | 2016-05-04 | 石家庄铁道大学 | Seismic-mitigation-and-isolation control method and structure with self-reset function |
| CN105735115A (en) * | 2016-03-01 | 2016-07-06 | 石家庄铁道大学 | Connecting shock absorption device for continuous girder bridge zone control |
| CN111455820A (en) * | 2020-04-10 | 2020-07-28 | 广东省交通规划设计研究院股份有限公司 | Seismic isolation and reduction system and bridge |
| CN114411531A (en) * | 2022-01-26 | 2022-04-29 | 贵州路桥集团有限公司 | Anti-seismic device and anti-seismic structure for bridge |
| CN114411531B (en) * | 2022-01-26 | 2024-02-06 | 贵州路桥集团有限公司 | Anti-seismic device and anti-seismic structure for bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160407 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY Corp. Patentee after: CHINA RAILWAY FIRST SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. Address before: 710043 Shaanxi province Xi'an Xiying Road No. two Patentee before: CHINA RAILWAY FIRST SURVEY AND DESIGN INSTITUTE GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |