CN205711708U - Negative sense variation rigidity laminated rubber bearing - Google Patents
Negative sense variation rigidity laminated rubber bearing Download PDFInfo
- Publication number
- CN205711708U CN205711708U CN201620225399.8U CN201620225399U CN205711708U CN 205711708 U CN205711708 U CN 205711708U CN 201620225399 U CN201620225399 U CN 201620225399U CN 205711708 U CN205711708 U CN 205711708U
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- steel plate
- steel
- bearing
- support body
- rigidity
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Abstract
The utility model discloses a kind of negative sense variation rigidity laminated rubber bearing.Support body is made up of upper and lower two shroudings and the steel skeleton being placed between these two shroudings, and steel skeleton staggered floor is arranged alternately hollow steel flaggy (5) and single solid steel flaggy (6)；Described hollow steel flaggy is the steel plate being uniformly distributed hole (5a)；The coverage density of hole determines according to result of calculation.When reducing horizontal rigidity required for bearing, raising hole distribution coverage density is used to be achieved.This utility model has simple in construction, easy to operate feature.Under the conditions of overall dimensions, bearing capacity, vertical rigidity are immovable, the purpose of the combined horizontal rigidity of bridge pier is reached to change by changing bearing horizontal rigidity, make cross section bridge pier horizontal rigidity identical, the most not etc. consistent, bridge structure dynamic load effect and damping and isolation effect can be improved.
Description
Technical field
This utility model belongs to supporting bridge technical field, is specifically related to a kind of New-type plate rubber support.
Background technology
Background one: bridge increasingly tends to lightness, economy, the application of flexible pier is exactly one of classic approach.Aseismic Design Theory is thought: if each bridge pier same in beam structure undertakes horizontal earthquake active force the most equably, then can be substantially reduced the antidetonation to anchor block to rely on, reduce the construction cost of bridge, also can be promoted on the aesthetic property of bridge simultaneously.In order to make each bridge pier shared horizontal applied force, then need the horizontal rigidity of each pier is controlled.If to accomplish further uniformly to undertake, then require that the combined horizontal rigidity of each pier reaches unanimity.The combined horizontal rigidity of pier is " pier shaft horizontal rigidity+bearing horizontal rigidity ".
Background two: the laminated rubber bearing selected according to existing industry standard JT/T663-2006, bearing to vertical bearing capacity of the same race, when highly consistent, it is vertical, horizontal rigidity is consistent or basically identical, if needing to change one of them parameter (vertical bearing capacity, vertical rigidity or horizontal rigidity), another two parameters then can change, and the most linear.This kind of bearing is " Standard abutments "
The laminated rubber bearing of prior art is made up of two connection seats of support body and the symmetrical support body top and bottom that are placed in.Connection seat is made up of for the anchor bolt being connected with beam body with being placed on junction steel plate junction steel plate, and support body is made up of upper and lower two shroudings and the steel skeleton being placed between these two shroudings, and steel skeleton is the structure having multiple steel plate with intermediate gelatine layer interlayer.
For the bridge consistent across footpath, pier shaft height is identical, " Standard abutments " can meet design and use demand.But for Bridges in Mountainous Areas, same bridge may have the pier shaft of differing heights, to this, pier shaft height consistent across footpath same bridge structure not etc., its vertical bearing capacity is identical with vertical rigidity requirement, in order to make integrin pier shaft horizontal rigidity design load identical, in the case of pier shaft horizontal rigidity is inconsistent, then needs to adjust the horizontal rigidity of bearing, make combined horizontal rigidity reach consistent.Owing to " Standard abutments " is difficult on the basis of economical, attractive in appearance meet the design requirement of each pier shared horizontal force.Being actually needed according to engineering, supplements a kind of adjustable bearing of horizontal rigidity, with " Standard abutments " fit applications in Practical Project.As the structure that it is concrete, relate to " negative sense variation rigidity laminated rubber bearing " (the application scheme) weakened relative to " Standard abutments " horizontal rigidity, with higher relative to " Standard abutments " horizontal rigidity " forward variation rigidity laminated rubber bearing " (proposing the same period with the application scheme).
Utility model content
The purpose of this utility model is the deficiency overcoming working standard bearing, solve the structure unicity of prior art, a kind of variable (weakening) rigidity rubber support is provided, this bearing can make bridge common uniform stressed of each bridge pier when operation or earthquake, improve the dynamic load effect of bridge and subtract vibration isolating effect, ensure that bridge structure runs comfortable and safe property, and extend its service life.
For reaching above-mentioned purpose, this utility model be the technical scheme is that a kind of negative sense variation rigidity laminated rubber bearing, is made up of two connection seats of support body and the symmetrical support body top and bottom that are placed in；Described connection seat is by junction steel plate 1 and is placed on junction steel plate the anchor bolt 8 for being connected with beam body and constitutes；Described support body is made up of upper and lower two shroudings and the steel skeleton being placed between these two shroudings, and described steel skeleton has multiple interlayer of steel plate, is equipped with intermediate gelatine layer 4 between each interlayer of steel plate, is provided with protection rubber 7 in the termination, left and right of interlayer of steel plate and interlayer of steel plate；Support body is coupled with two connection seats by sunk screw 2 by junction steel plate 1 and shrouding 3.Described steel skeleton staggered floor is arranged alternately hollow steel flaggy 5 and single solid steel flaggy 6；Described hollow steel flaggy is the steel plate being uniformly distributed hole 5a；The coverage density of hole calculates according to actual needs and determines；Protection rubber 7, shrouding 3, intermediate gelatine layer 4 form support body with interlayer of steel plate through sulfuration.
Further, the hole of described adjacent hollow steel plate layer is coaxially disposed.
So, the relative purpose weakened of bearing horizontal rigidity is reached with the reasonable combination of solid steel plate 6 by hollow steel flaggy 5.
When horizontal rigidity weakens required for bearing, raising hollow steel flaggy 5 hole distribution coverage density is used to be achieved.This utility model has simple in construction, easy to operate feature.Under the conditions of overall dimensions, bearing capacity, vertical rigidity are immovable, the purpose of the combined horizontal rigidity of bridge pier is reached to change by changing bearing horizontal rigidity, make cross section bridge pier horizontal rigidity identical, the most not etc. consistent, reach improve Bridge Dynamic Load effect and subtract the purpose of function of shock insulation.This bearing is particularly well-suited to mountain area, Gao Xia area concrete continuous girder bridge girder construction.
This utility model also can be substantially reduced bridge construction construction cost, effectively reduces the overall cost of bridge.Simultaneously because each pier face profile size can be accomplished unanimously so that bridge also can get certain lifting on aesthetic property.
Accompanying drawing explanation
Accompanying drawing 1 is sectional view of the present utility model.
In figure: 1-junction steel plate, 2-sunk screw, 3-shrouding, 4-intermediate gelatine layer, the hollow steel plate of 5-, 5a-hole, 6-solid steel plate, 7-protect rubber, 8-anchor bolt, 9-steel bushing.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technical solution of the utility model is described in detail.
As shown in Figure 1: a kind of negative sense variation rigidity laminated rubber bearing, it is made up of junction steel plate 1, sunk screw 2, shrouding 3, intermediate gelatine layer 4, hollow steel plate 5, solid steel plate 6, protection rubber 7, anchor bolt 8, steel bushing 9.Actual requirement of engineering is provided with the hollow steel plate 5 of certain hole 5a quantity and solid steel plate 6 in the vertical direction interval staggered floor is alternately evenly arranged.Protection rubber is arranged on around bearing, and to protect shrouding, intermediate gelatine layer, hollow steel plate, solid steel plate not to be polluted by air and ultraviolet etc., they form entirety, referred to as a support body through sulfuration.The attached structure that junction steel plate 1, sunk screw 2, anchor bolt 8, steel bushing 9 are connected with beam body, pinner as support body, is separately positioned on the upper/lower terminal of bearing.
This utility model can reduce bearing horizontal rigidity by solid steel plate 6 with the combination of hollow steel plate 5.Thus it is consistent to reach bridge each pier composite rigidity, it is ensured that the common uniform stressed of each pier of bridge, improve structural dynamic effect and damping and isolation effect.Protection domain the most of the present utility model is not limited in embodiment of above, creates this utility model and makes equivalent improvement also within the protection domain that this utility model is created.
Claims (2)
1. a negative sense variation rigidity laminated rubber bearing, is made up of two connection seats of support body and the symmetrical support body top and bottom that are placed in；Described connection seat by junction steel plate (1) and be placed on junction steel plate the anchor bolt (8) for being connected with beam body, steel bushing (9) is constituted；Support body is made up of upper and lower two shroudings and the steel skeleton being placed between these two shroudings; described steel skeleton has multiple interlayer of steel plate; it is equipped with intermediate gelatine layer (4) between each interlayer of steel plate, is provided with protection rubber (7) in the termination, left and right of interlayer of steel plate and interlayer of steel plate；Support body is coupled with two connection seats by sunk screw (2) by junction steel plate (1) and shrouding；It is characterized in that, described steel skeleton staggered floor is arranged alternately hollow steel flaggy (5) and single solid steel flaggy (6)；Described hollow steel flaggy is the steel plate being uniformly distributed hole (5a)；The coverage density of hole determines according to result of calculation；Protection rubber (7), shrouding (3), intermediate gelatine layer (4) form support body with interlayer of steel plate through sulfuration.
Negative sense variation rigidity laminated rubber bearing the most according to claim 1, it is characterised in that: the hole of described adjacent hollow steel plate layer is coaxially disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225399.8U CN205711708U (en) | 2016-03-23 | 2016-03-23 | Negative sense variation rigidity laminated rubber bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225399.8U CN205711708U (en) | 2016-03-23 | 2016-03-23 | Negative sense variation rigidity laminated rubber bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205711708U true CN205711708U (en) | 2016-11-23 |
Family
ID=57313952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620225399.8U Expired - Fee Related CN205711708U (en) | 2016-03-23 | 2016-03-23 | Negative sense variation rigidity laminated rubber bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205711708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696460A (en) * | 2016-03-23 | 2016-06-22 | 四川翔晖路桥工程有限公司 | Negative direction variable-rigidity laminated rubber bearing |
| CN107327535A (en) * | 2017-05-27 | 2017-11-07 | 上海电力学院 | A kind of laminated type metal-rubber shock isolating pedestal for Substation Electric Equipment |
-
2016
- 2016-03-23 CN CN201620225399.8U patent/CN205711708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696460A (en) * | 2016-03-23 | 2016-06-22 | 四川翔晖路桥工程有限公司 | Negative direction variable-rigidity laminated rubber bearing |
| CN107327535A (en) * | 2017-05-27 | 2017-11-07 | 上海电力学院 | A kind of laminated type metal-rubber shock isolating pedestal for Substation Electric Equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161123 Termination date: 20170323 |