CN208105030U - A kind of continuous bridge Self-resetting pivoting friction damping device - Google Patents
A kind of continuous bridge Self-resetting pivoting friction damping device Download PDFInfo
- Publication number
- CN208105030U CN208105030U CN201820494336.1U CN201820494336U CN208105030U CN 208105030 U CN208105030 U CN 208105030U CN 201820494336 U CN201820494336 U CN 201820494336U CN 208105030 U CN208105030 U CN 208105030U
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- resetting
- fixedly mounted
- bracket
- load transfer
- continuous bridge
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Abstract
The utility model relates to a kind of continuous bridge Self-resetting pivoting friction damping devices, it includes friction load transfer device, cushion cap, resetting apparatus and bracket, bracket is fixedly mounted on beam body bottom, cushion cap is fixedly mounted on sliding pier top portion, bracket lower end inside is fixedly mounted at the top of resetting apparatus, friction load transfer device both ends are corresponding to be mounted on above resetting apparatus, and friction load transfer device passes through cushion cap top；The utility model simple structure, economy and durability are convenient for checking and be safeguarded, using spiral gradient power transmission, reach each pier of continuous bridge cooperative bearing under geological process, meanwhile, by mechanical friction, realize the purpose of earthquake energy.Newly-built Aseismic Design and existing building seismic hardening suitable for highway bridge, railway bridge, Urban Bridge and all kinds of Large Scale and Continuous girder constructions.
Description
Technical field
The utility model relates to a kind of continuous bridge Self-resetting pivoting friction damping devices, belong to bridge and subtract shock insulation field,
Specially be suitable for highway bridge, railway bridge, Urban Bridge and all kinds of Large Scale and Continuous girder constructions newly-built Aseismic Design and existing build
Build seismic hardening.
Background technique
Demand is conjugated to meet the lower caused Liang Dun of temperature load effect, a fixation is only arranged in a general continuous bridge
Pier, continuous bridge anchor block almost assumes responsibility for whole horizontal earthquake actions, and slides pier antidetonation potential and do not played and utilized.
Existing vibration absorption and isolation support and passive energy-consuming device can reach certain damping energy consumption effect by reasonable parameter setting, but all
To sacrifice displacement for cost, replacement vibration absorption and isolation support adds the glissandoes such as damper, and project amount is big, at high cost, and does not change
Become continuous bridge anchor block and individually bears horizontal earthquake action, the status that sliding pier antidetonation potential is not played and utilized.Water
There is irreducible disadvantage after performance cushioning effect, influence of the vertical seismic motion to sliding friction isolation structure in flat sliding support
It is larger.
Utility model content
The utility model technical problem of being solved is to provide a kind of utilize and slides the existing antidetonation potential of pier, cooperates with anchor block
It is common to resist earthquake, the Self-resetting of device, simple structure, economy and durability, the continuous bridge convenient for Inspection and maintenance can be achieved after shake
Self-resetting pivoting friction damping device.
The utility model adopts the following technical solution：
The utility model includes that friction load transfer device, cushion cap, resetting apparatus and bracket, the bracket are fixedly mounted on beam body
Bottom, the cushion cap is fixedly mounted on sliding pier top portion, is fixedly mounted on bracket lower end inside at the top of the resetting apparatus, described
Friction load transfer device both ends are corresponding to be mounted on above resetting apparatus, and the friction load transfer device passes through cushion cap top.
Friction load transfer device described in the utility model includes flat spin bar, the circle for being fixedly mounted on flat spin bar both ends
Shape plate and the frictional layer being fixedly mounted on the outside of circular slab；Gap setting between the frictional layer outside and bracket.
Cushion cap described in the utility model includes being fixedly mounted on the pedestal for sliding pier top portion, setting to make level in base top
Cavity and I shape hole needed for the rotation of screw rod segment；The corresponding lateral wall of pedestal and two adjacent skies are arranged in I shape hole
On partition between chamber；
Resetting apparatus described in the utility model include reset spring, the mounting plate being fixedly mounted at the top of reset spring and
Drag-line；Described mounting plate one end is fixedly mounted on bracket lower end inside, and described drag-line one end is connect with reset spring bottom, described
The drag-line other end passes through mounting plate and fixes with circular slab bottom.
The utility model circular slab is steel plate.
Frictional layer described in the utility model is polytetrafluoroethylene ethylene layer.
The utility model good effect is as follows：The utility model flat spin bar is twisted into certain thickness steel plate
Screw rod after determining that it is contacted with I shape hole due to the gradient of every segment spiral of flat spin bar, makes its own and drives circle
The size of power needed for the rotation of shape plate, coefficient of friction and friction area between frictional layer and corresponding bracket determine that device consumes
The size of energy ability, the turning power between friction effects flat spin bar and I shape hole, and then influence between beam body and sliding pier
The size of power transmission, by adjusting coefficient of friction and friction area, the every segment windup-degree of subsidiary level screw rod changes, and adjusts beam
Power transmission size between pier.Drag-line applies certain pretightning force to reset spring, circular slab can be hindered to rotate, and then passes between increase beam pier
Power ability, meanwhile, since the restoring force of reset spring acts on after shake, sliding pier realization device Self-resetting can be assisted.
Utility model works principle is as follows：
Under normal condition, the preset clearance between circular slab and bracket is greater than under temperature load and vehicle braking load action,
The relative displacement maximum value that Liang Dun is generated.
When earthquake happens suddenly, beam body and sliding pier pier top relative displacement increase, and circular slab is contacted with bracket, pushes flat spin
Relative motion occurs for bar and I shape hole, and flat spin bar drives circular slab rotation, is allowed to generate pivoting friction with bracket, consumption ground
Energy, limitation beam body and the relative motion for sliding pier are shaken, the horizontal earthquake load of superstructure is transferred to sliding pier, the company of realization
The purpose of geological process is resisted in continuous each pier collaboration of beam bridge.
After earthquake, reset spring is in continued compression state, drives circular slab revolution by drag-line, auxiliary sliding pier is real
Existing device resets.Effectively avoid because beam pier relative displacement it is excessive caused by support and expansion joint damage, or even fall beam collapse it is equal sternly
The generation of weight continuous bridge earthquake.
The utility model simple structure, economy and durability are convenient for checking and be safeguarded, using spiral gradient power transmission, reach continuous
Each pier of beam bridge cooperative bearing under geological process, meanwhile, by mechanical friction, realize the purpose of earthquake energy.It is suitable for
Highway bridge, railway bridge, Urban Bridge and all kinds of Large Scale and Continuous girder constructions newly-built Aseismic Design and existing building seismic hardening.
The utility model principle is simple, economic and reliable.
Detailed description of the invention
It is attached that FIG. 1 is a schematic structural view of the utility model；
Attached drawing 2 is the utility model friction load transfer device structural schematic diagram；
Attached drawing 3 is the utility model cushion cap schematic cross-sectional view；
Attached drawing 4 is the utility model I shape pore structure schematic diagram；
Attached drawing 5 is the utility model resetting apparatus structural schematic diagram.
Specific embodiment
As shown in attached drawing 1-5, the utility model includes friction load transfer device 1, cushion cap 2, resetting apparatus 3 and bracket 4, described
Bracket 4 is fixedly mounted on 5 bottom of beam body, and the cushion cap 2 is fixedly mounted on 6 top of sliding pier, fixes at the top of the resetting apparatus 3
It is mounted on 4 lower end inside of bracket, 1 both ends of the friction load transfer device are corresponding to be mounted on above resetting apparatus 3, described
The load transfer device 1 that rubs passes through 2 top of cushion cap.
Friction load transfer device 1 described in the utility model includes flat spin bar 101, is fixedly mounted on flat spin bar 101
The circular slab 102 at both ends and the frictional layer 103 for being fixedly mounted on 102 outside of circular slab；Circular slab 102 is steel plate；It is described to rub
Gap setting between 103 outside of layer and bracket 4 is wiped, the preset clearance between circular slab 102 and bracket 4 is greater than temperature load and vehicle
It brakes under load action, the relative displacement maximum value that Liang Dun is generated；The cushion cap 2 includes being fixedly mounted on 6 top of sliding pier
The cavity 203 and I shape hole 202 for keeping the rotation of 101 segment of flat spin bar required is arranged at the top of pedestal 201 in pedestal 201；Institute
It states on the partition that I shape hole 202 is arranged between the corresponding lateral wall of pedestal 201 and two adjacent cavitys 203.The utility model water
Flat spin bar 101 is the screw rod twisted into certain thickness steel plate, due to the slope of every segment spiral of flat spin bar 101
After degree determines that it contact with I shape hole 202, its own and drive circular slab 102 is made to rotate the size of required power, Practical Project
In, its spiral gradient is changed by every segment windup-degree of flat spin bar 101, realizes that the utility model plays a role
Afterwards beam body and sliding pier between power transmission size adjustment.The friction system of frictional layer 103 between the circular slab and corresponding bracket 4
Several and friction area determines the size of device energy-wasting ability, simultaneously because the presence of frictional force, will affect flat spin bar 101
With the turning power between I shape hole, and then influence beam body and slide pier between power transmission size, by adjusting coefficient of friction and can rub
Area is wiped, the every segment windup-degree of subsidiary level screw rod changes, and adjusts power transmission size between beam pier.
Resetting apparatus 3 described in the utility model includes reset spring 301, the peace for being fixedly mounted on 301 top of reset spring
Loading board 302 and drag-line 303；Described 302 one end of mounting plate is fixedly mounted on 4 lower end inside of bracket, described 303 one end of drag-line with
The connection of 301 bottom of reset spring, 303 other end of drag-line pass through mounting plate 302 and fix with 102 bottom of circular slab.
Under normal condition, the preset clearance between circular slab 102 and bracket 4 is greater than temperature load and vehicle braking load action
Under, the relative displacement maximum value of Liang Dun generation.
When earthquake happens suddenly, beam body 5 and sliding 6 pier top relative displacement of pier increase, and circular slab is contacted with bracket, pushes horizontal spiral shell
Relative motion occurs for spinner handle and I shape hole, and flat spin bar 101 drives circular slab 102 to rotate, and is allowed to rub with the generation rotation of bracket 4
It wipes, earthquake energy, the horizontal earthquake load of superstructure is transferred to cunning by limitation beam body 5 and the relative motion for sliding pier 6
Dynamic pier 6 realizes that the purpose of geological process is resisted in each pier collaboration of continuous bridge.
After earthquake, reset spring 301 is in continued compression state, drives circular slab 102 to turn round by drag-line 303, auxiliary
Sliding 6 realization device of pier is helped to reset.Effectively avoid because beam pier relative displacement it is excessive caused by support and expansion joint damage, or even fall
Beam such as collapses at the generation of serious continuous bridge earthquake.
The utility model simple structure, economy and durability are convenient for checking and be safeguarded, using spiral gradient power transmission, reach continuous
Each pier of beam bridge cooperative bearing under geological process, meanwhile, by mechanical friction, realize the purpose of earthquake energy.It is suitable for
Highway bridge, railway bridge, Urban Bridge and all kinds of Large Scale and Continuous girder constructions newly-built Aseismic Design and existing building seismic hardening.
The utility model principle is simple, economic and reliable.
Finally, it is stated that the above is only the preferred embodiment of the utility model only, not to limit this reality
With novel, any modification, equivalent replacement or improvement made within the spirit and principle of the present invention etc. should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of continuous bridge Self-resetting pivoting friction damping device, it is characterised in that it includes friction load transfer device（1）, cushion cap
（2）, resetting apparatus（3）And bracket（4）, the bracket（4）It is fixedly mounted on beam body（5）Bottom, the cushion cap（2）It is fixedly mounted
In sliding pier（6）Top, the resetting apparatus（3）Top is fixedly mounted on bracket（4）Lower end inside, the friction load transfer device
（1）Both ends are corresponding to be mounted on resetting apparatus（3）Top, the friction load transfer device（1）Across cushion cap（2）Top.
2. a kind of continuous bridge Self-resetting pivoting friction damping device according to claim 1, it is characterised in that described to rub
Wipe load transfer device（1）Including flat spin bar（101）, be fixedly mounted on flat spin bar（101）The circular slab at both ends（102）With
And it is fixedly mounted on circular slab（102）The frictional layer in outside（103）；
The frictional layer（103）Outside and bracket（4）Between gap setting.
3. a kind of continuous bridge Self-resetting pivoting friction damping device according to claim 1, it is characterised in that described to hold
Platform（2）Including being fixedly mounted on sliding pier（6）The pedestal at top（201）, be arranged in pedestal（201）Top makes flat spin bar
（101）Cavity needed for the rotation of segment（203）And I shape hole（202）；I shape hole（202）It is arranged in pedestal（201）It is corresponding
Lateral wall and two adjacent cavitys（203）Between partition on.
4. a kind of continuous bridge Self-resetting pivoting friction damping device according to claim 2, it is characterised in that described multiple
Position device（3）Including reset spring（301）, be fixedly mounted on reset spring（301）The mounting plate at top（302）And drag-line
（303）；The mounting plate（302）One end is fixedly mounted on bracket（4）Lower end inside, the drag-line（303）One end and reset bullet
Spring（301）Bottom connection, the drag-line（303）The other end passes through mounting plate（302）With circular slab（102）Bottom is fixed.
5. a kind of continuous bridge Self-resetting pivoting friction damping device according to claim 2, it is characterised in that circular slab
（102）For steel plate.
6. a kind of continuous bridge Self-resetting pivoting friction damping device according to claim 2, it is characterised in that described to rub
Wipe layer（103）For polytetrafluoroethylene ethylene layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494336.1U CN208105030U (en) | 2018-04-09 | 2018-04-09 | A kind of continuous bridge Self-resetting pivoting friction damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494336.1U CN208105030U (en) | 2018-04-09 | 2018-04-09 | A kind of continuous bridge Self-resetting pivoting friction damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208105030U true CN208105030U (en) | 2018-11-16 |
Family
ID=64120268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820494336.1U Expired - Fee Related CN208105030U (en) | 2018-04-09 | 2018-04-09 | A kind of continuous bridge Self-resetting pivoting friction damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208105030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330820A (en) * | 2018-04-09 | 2018-07-27 | 石家庄铁道大学 | A kind of continuous bridge Self-resetting damping by friction device |
| CN113279325A (en) * | 2021-06-30 | 2021-08-20 | 北京工业大学 | Self-resetting function separation support continuous beam bridge |
-
2018
- 2018-04-09 CN CN201820494336.1U patent/CN208105030U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330820A (en) * | 2018-04-09 | 2018-07-27 | 石家庄铁道大学 | A kind of continuous bridge Self-resetting damping by friction device |
| CN108330820B (en) * | 2018-04-09 | 2024-03-29 | 石家庄铁道大学 | Self-resetting friction damping device for continuous beam bridge |
| CN113279325A (en) * | 2021-06-30 | 2021-08-20 | 北京工业大学 | Self-resetting function separation support continuous beam bridge |
| CN113279325B (en) * | 2021-06-30 | 2024-05-28 | 北京工业大学 | Continuous bridge with support separated from resetting function |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181116 Termination date: 20210409 |