CN202954294U - Two-way damping energy-dissipating bridge pot bearing - Google Patents
Two-way damping energy-dissipating bridge pot bearing Download PDFInfo
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- CN202954294U CN202954294U CN 201220685507 CN201220685507U CN202954294U CN 202954294 U CN202954294 U CN 202954294U CN 201220685507 CN201220685507 CN 201220685507 CN 201220685507 U CN201220685507 U CN 201220685507U CN 202954294 U CN202954294 U CN 202954294U
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- basin
- base plate
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Abstract
The utility model discloses a two-way damping energy-dissipating bridge pot bearing, comprising an epsilon-shaped steel damping element and a support body, wherein the support body comprises an upper anchoring steel rod; the lower part of the upper anchoring steel rod is connected with an upper seat plate; a bottom basin is arranged below the upper seat plate; a piston is arranged inside the bottom basin; epsilon-shaped steel is arranged on the upper seat plate and two sides of the piston; a lower anchoring steel rod is arranged at the lower part of the bottom basin; a transverse lead rail is also arranged in the bottom basin; a lower seat plate is arranged at the lower part of the transverse lead rail; a mounting ear plate for mounting two kerb shoes of the transverse epsilon-shaped steel is arranged at the side of the lower seat plate; transverse slide pairs are arranged on the bottom basin and the lower seat plate; the epsilon-shaped steel bears a common horizontal load in the damping direction of the support; the epsilon-shaped steel is in an elastic state and provides large-elasticity rigidity; the support bears large horizontal seismic load in an earthquake; and the epsilon-shaped steel enters into a plastic state to repeatedly absorb earthquake energy in a plastic deformation manner. Thus, input of the earthquake energy can be reduced; the anti-seismic property of the bridge is improved; and the two-way damping energy-dissipating bridge pot bearing has the characteristics of large rigidity at the elastic stage, small rigidity at the plastic stage, small size, light weight and large damping force.
Description
Technical field
The utility model belongs to the bridge parts technical field, relates to a kind of bidirectional damper energy dissipating basin type support for bridges.
Background technology
When earthquake occurs, bridge the most easily suffers the destruction of earthquake, and the bad rear blocking-up traffic of bridge shake, and then cause more serious secondary disaster.Therefore the shock resistance that improves bridge is significant to reducing earthquake damage.
The shock resistance that improves bridge mainly contains two kinds of methods: the one, and the shock resistance of enhancing bridge self structure, as increased the structural strength of pier and beam; The method cost higher and in being used in super-huge continuous beam bridge effect limited.The 2nd, reduce the seismic energy input of bridge, by subtracting shock isolation method, improve the anti-seismic performance of bridge.
Seismic energy is mainly through bridge pad input bridge superstructure, but domestic widely used common bridge pad can only transmit power at present, can not reduce seismic energy input, can not improve the anti-seismic performance of bridge.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of bidirectional damper energy dissipating basin type support for bridges, can reduce seismic energy input, improve anti-seismic performance of beam bridge, there is elastic stage rigidity large, plastic stage rigidity is little, and size is little, the lightweight and large characteristics of damping force.
To achieve these goals, the technical scheme the utility model proposes is: a kind of bidirectional damper energy dissipating basin type support for bridges includes shaped steel damping element and a seat body; Prop up seat body and comprise the grappling rod iron, upper anchor grappling rod iron bottom is connected with upper base plate, upper base plate has end basin, be provided with piston in end basin, upper base plate and piston both sides are provided with ε shaped steel, basin bottom, the end is provided with lower grappling rod iron, at the described end, basin also is provided with cross slide way, the cross slide way bottom is provided with lower seat board, described lower seat board side is provided with the installation otic placode of the both sides pin that horizontal ε shaped steel is installed, and the guide-track groove that end basin and lower seat board are provided with on the described cross slide way of horizontal sliding pair and lower seat board forms horizontal sliding pair.
Described piston base is provided with rubber pad.
Described upper base plate is provided with guide-track groove, is provided with the longitudinal sliding motion pair between upper base plate and piston, and piston is provided with longitudinal rail, and guide-track groove matches with longitudinal rail
Described upper base plate is anchored on the beam body of bridge top by upper grappling rod iron, and end basin is anchored on bridge pier by lower grappling rod iron.
The utility model is the bidirectional damper type.The vertical bridge of bidirectional damper type is to direction across bridge, all being provided with ε shaped steel, can, at vertical bridge to, direction across bridge both direction antidetonation, be suitable for use in highway, municipal bridge bridge.
The beneficial effects of the utility model:
1, the utility model is applied in bridge earthquake resistance, can effectively reduce the earthquake response of bridge, and at the bottom of pier, maximal bending moment can reduce by 20%～50%, and at the bottom of pier, maximum shear can reduce by 30%～50%.The larger effect of geological process is more obvious, especially is applicable to being applied on super-huge bridge and high earthquake region bridge.
2, the utility model is usingd the ε shaped steel of up-to-date research and development as the damping dissipation energy element, compact conformation, take up room and weight on be better than like product comprehensively: only take up room as with 70%～80% of other elastic-plastic damping bearings of performance, damping element lightweight more than 1/3.
3, the damping force of ε shaped steel of the present utility model can accurately design, therefore can by ε shaped steel precisely control inputs to the seismic forces of bridge (error be less than ± 15%), be conducive to the bridge construction engineer and carry out the lean seismic design, reduce the cost of bridge.
4, with unidirectional damping type ε shaped steel damping dissipation energy bridge pad, compare, horizontal ε shaped steel, cross slide way and lower seat board have been increased, lower seat board is provided with the installation otic placode of horizontal ε shaped steel both sides pin, end basin increases the installation otic placode of horizontal ε shaped steel crura intermedium, end basin and lower seat board are provided with horizontal sliding pair, bidirectional damper type ε shaped steel damping dissipation energy bridge pad can vertical bridge to direction across bridge both direction damping dissipation energy.
The accompanying drawing explanation
Fig. 1 is the utility model bidirectional damper type structural representation.
Fig. 2 is Fig. 3 top view.
In figure: the upper grappling rod iron of 1--; The 2--upper base plate; The 3--piston; The 4--rubber pad; Basin at the bottom of 5--; Grappling rod iron under 6--; The 7-longitudinal rail; 8-ε shaped steel; The 9-cross slide way; Seat board under 10-; The horizontal ε shaped steel of 11-.
The specific embodiment
Below in conjunction with drawings and Examples, utility model is further described.
Referring to Fig. 1,2, a kind of bidirectional damper energy dissipating basin type support for bridges, include shaped steel damping element and a seat body; Prop up seat body and comprise grappling rod iron 1, upper anchor grappling rod iron 1 bottom is connected with upper base plate 2, and upper base plate 2 has end basin 5, be provided with piston 3 in end basin 5, upper base plate 2 and piston 3 both sides are provided with * ε shaped steel 8, and ε shaped steel is the damping dissipation energy element of bearing, determine the damping dissipation energy performance of bearing; The effect of the conventional bridge pad of bearing main body; Basin 5 bottoms in the end are provided with lower grappling rod iron 6.Basin of the described end 5 also is provided with cross slide way 9, cross slide way 9 bottoms are provided with lower seat board 10, described lower seat board 10 sides are provided with the installation otic placode of the both sides pin that horizontal ε shaped steel 11 is installed, end basin 5 is provided with horizontal sliding pair with lower seat board, and the guide-track groove on described cross slide way 9 and lower seat board 10 forms horizontal sliding pair.
Described piston 3 bottoms are provided with rubber pad 4.
Described upper base plate 2 is anchored on the beam body of bridge top by upper grappling rod iron, and end basin is anchored on bridge pier by lower grappling rod iron.Upper base plate 2 is provided with the installation otic placode of ε type 8 steel both sides pin, and piston 3 is provided with the installation otic placode of ε shaped steel 8 crura intermediums, by ε type 8, by otic placode is installed, with upper base plate 2 and piston 3, is connected.Piston 3 is provided with longitudinal rail 7, upper base plate 2 is provided with guide-track groove 12, and guide-track groove 12 matches with longitudinal rail 7, and longitudinal rail 7 can slide at guide-track groove 12, be provided with the longitudinal sliding motion pair between upper base plate 2 and piston 3, during earthquake, bearing can be along the guide-track groove longitudinal sliding motion.
ε shaped steel 8 has three pin, every pin be provided with installing hole, crura intermedium is arranged on the otic placode of piston 3 in a seat body by bearing pin, the both sides pin is installed on the otic placode of seat board 2 by bearing pin.ε shaped steel 8 symmetries are arranged on the both sides of a seat body, and the ε shaped steel 8 of same damping direction is identical, as shown in Figure 2.
Propping up seat body is the rubber pot bearing, by upper anchor grappling rod iron 1, upper base plate 2, piston 3, rubber pad 4, end basin 5, lower grappling rod iron 6, formed, upper base plate 2 is anchored on the beam body of bridge top by upper grappling rod iron, and end basin is anchored on bridge pier by lower grappling rod iron.Upper base plate 2 is provided with the installation otic placode of ε type 8 steel both sides pin, and piston 3 is provided with the installation otic placode of ε shaped steel 8 crura intermediums.Piston 3 is provided with longitudinal rail, and upper base plate 2 is provided with guide-track groove, between upper base plate 2 and piston 3, is provided with the longitudinal sliding motion pair, and during earthquake, bearing can be along the guide-track groove longitudinal sliding motion.
In order not affect the damping distortion of ε shaped steel 8, the connection bearing pin of ε shaped steel 8 and pin shaft hole all want coating lubricating oil fat to reduce friction.
The utility model has increased horizontal ε shaped steel 11, cross slide way 9 and lower seat board 10.Lower seat board 10 is provided with the installation otic placode of horizontal ε shaped steel 11 both sides pin, and end basin increases the installation otic placode of horizontal ε shaped steel 11 crura intermediums, and end basin and lower seat board are provided with horizontal sliding pair.Bidirectional damper type ε shaped steel damping dissipation energy bridge pad can vertical bridge to direction across bridge both direction damping dissipation energy.
ε shaped steel is a kind of good elastoplasticity steel damping dissipation energy element of up-to-date research and development, be mainly the elastic-plastic deformation of utilizing steel, and provide larger elastic stiffness in the elastic deformation stage, in the plastic period earthquake energy, there is elastic stage rigidity large, the characteristic that plastic stage rigidity is little.ε shaped steel has stable hysteretic characteristic, full hysteresis loop, and good low cycle fatigue property, performance are not subject to the characteristics such as impact of variation of ambient temperature.When earthquake, by the plastic strain of element hysteresis, consume, the seismic energy that decay is transmitted, thus reach the purpose of damping.
Prop up the rubber pot bearing that seat body adopts, the rubber pot bearing has simple in structure, and at the bottom of cost, the characteristics such as dependable performance, be a kind of widely used bridge pad.Prop up seat body and be comprised of upper base plate, piston, rubber pad, end basin, lower seat board and lower anchoring piece, upper base plate is connected with bridge top beam body by upper anchoring piece, and lower seat board is connected with bridge pier by lower anchoring piece.Upper base plate is provided with the installation otic placode of ε shaped steel both sides pin, and end basin or piston are provided with the installation otic placode of ε shaped steel crura intermedium, and the lower seat board of bidirectional damper bearing also is provided with the installation otic placode of ε shaped steel both sides pin.Seat body is provided with slide plane and guide rail, guide-track groove in the damping direction, and during earthquake, bearing can slide along guide-track groove.
ε shaped steel is connected with a seat body by bearing pin, and in order not affect the damping distortion of ε shaped steel, the connection bearing pin of ε shaped steel and pin shaft hole all want coating lubricating oil fat to reduce friction.
Operating principle of the present utility model: during normal operation, the utility model provides all functions of bridge pad, and as vertical carrying and rotation, ε shaped steel is born the conventional levels load of bearing damping direction, now ε shaped steel, in elastic stage, provides larger elastic stiffness; During earthquake, bearing bears larger horizontal earthquake load, and now ε shaped steel enters plastic state, and plastic strain absorbs seismic energy repeatedly, and ε shaped steel plasticity rigidity is less simultaneously, can play function of shock insulation.
Claims (4)
1. a bidirectional damper energy dissipating basin type support for bridges, include shaped steel damping element and a seat body, it is characterized in that, prop up seat body and comprise grappling rod iron (1), upper anchor grappling rod iron (1) bottom is connected with upper base plate (2), upper base plate (2) has end basin (5), be provided with piston (3) in end basin (5), upper base plate (2) and piston (3) both sides are provided with ε shaped steel (8), end basin (5) bottom is provided with lower grappling rod iron (6), end basin 5 also is provided with cross slide way (9), cross slide way (9) bottom is provided with lower seat board (10), described lower seat board (10) side is provided with the installation otic placode of the both sides pin that horizontal ε shaped steel (11) is installed, end basin (5) is provided with horizontal sliding pair with lower seat board, guide-track groove on described cross slide way (9) and lower seat board (10) forms horizontal sliding pair.
2. a kind of bidirectional damper energy dissipating basin type support for bridges according to claim 1, it is characterized in that, described upper base plate (2) is provided with guide-track groove (12), be provided with the longitudinal sliding motion pair between upper base plate (2) and piston (3), piston (3) is provided with longitudinal rail (7), and guide-track groove (12) matches with longitudinal rail (7).
3. a kind of bidirectional damper energy dissipating basin type support for bridges according to claim 1, is characterized in that, described upper base plate (2) is anchored on the beam body of bridge top by upper grappling rod iron, and end basin is anchored on bridge pier by lower grappling rod iron.
4. a kind of bidirectional damper energy dissipating basin type support for bridges according to claim 1, is characterized in that, described piston (3) bottom is provided with rubber pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685507 CN202954294U (en) | 2012-12-13 | 2012-12-13 | Two-way damping energy-dissipating bridge pot bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220685507 CN202954294U (en) | 2012-12-13 | 2012-12-13 | Two-way damping energy-dissipating bridge pot bearing |
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| Publication Number | Publication Date |
|---|---|
| CN202954294U true CN202954294U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220685507 Expired - Fee Related CN202954294U (en) | 2012-12-13 | 2012-12-13 | Two-way damping energy-dissipating bridge pot bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306426A (en) * | 2018-03-27 | 2019-10-08 | 同济大学 | A kind of Elasto-Plastic Structures damping supporting seat |
| CN110904828A (en) * | 2019-11-14 | 2020-03-24 | 株洲时代新材料科技股份有限公司 | Anti-pulling damping vibration reduction and isolation support |
-
2012
- 2012-12-13 CN CN 201220685507 patent/CN202954294U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306426A (en) * | 2018-03-27 | 2019-10-08 | 同济大学 | A kind of Elasto-Plastic Structures damping supporting seat |
| CN110904828A (en) * | 2019-11-14 | 2020-03-24 | 株洲时代新材料科技股份有限公司 | Anti-pulling damping vibration reduction and isolation support |
| CN110904828B (en) * | 2019-11-14 | 2021-08-20 | 株洲时代新材料科技股份有限公司 | Anti-pulling damping vibration reduction and isolation support |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.37, Keji 6th Road, high tech Zone, Xi'an, Shaanxi 710065 Patentee after: Shaanxi transportation planning and Design Institute Co.,Ltd. Patentee after: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 710075 room 13501, building 1, digital building, international business center, high tech Zone, Xi'an, Shaanxi Province Patentee before: Shaanxi Traffic Planning Design Research Institute Patentee before: ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Shengli Document name: Notification of conformity |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20211213 |