CN202227262U - Damping and resetting support for friction pendulum - Google Patents
Damping and resetting support for friction pendulum Download PDFInfo
- Publication number
- CN202227262U CN202227262U CN2011203595947U CN201120359594U CN202227262U CN 202227262 U CN202227262 U CN 202227262U CN 2011203595947 U CN2011203595947 U CN 2011203595947U CN 201120359594 U CN201120359594 U CN 201120359594U CN 202227262 U CN202227262 U CN 202227262U
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- rotary block
- bispherical
- moving block
- friction
- spherical rotation
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Abstract
The utility model discloses a damping and resetting support for a friction pendulum, which comprises an upper plate component, an upper rotary block, a bispherical rotary block, a limiter, a lower rotary block and a lower plate component. The upper rotary block is mounted on the bispherical rotary block, an upper friction pair is arranged between the upper rotary block and the bispherical rotary block, the bispherical rotary block is mounted on the lower rotary block, and a lower friction pair is arranged between the bispherical rotary block and the lower rotary block. The limiter is mounted on the upper rotary block and mainly used for limiting horizontal moving of the bispherical rotary block. In case of the earthquake, once the horizontal force of the earthquake is higher than the designed shearing resistance of the limiter, the limiter is cut off, the bispherical rotary block starts to horizontally move back and forth, and basic natural vibration cycle of bridges is prolonged greatly by the aid of the arc surface of the bispherical rotary block. Meanwhile, earthquake energy is converted into heat energy through a modified ultra-high molecular weight polyethylene board which is high in wear resistance and high-temperature resistance and stable in friction coefficient, and accordingly, shock isolation and energy absorption are realized.
Description
Technical field
The utility model relates to a kind of bridge construction building component, prolongs bridge basic natural vibration period when playing earthquake in particularly a kind of bridge construction; Simultaneously through have high abrasion, modified ultra-high molecular weight polyethylene plate high temperature resistant and stable friction factor is converted into heat energy with seismic energy, thereby realized the purpose friction pendulum damping reset abutment of shock insulation and power consumption.
Background technology
Present domestic highway, railroad bridge aseismatic bearing generally are to adopt the intensity that improves mechanism, the method for rigidity; With " hard anti-" is main; This just makes the rigidity of structure and ductility be difficult to reach matched well, is prone to cause problems such as rigidity sudden change, stress raisers, weak floor transfer to occur; And construction is complicated, need strengthen the basis sometimes, long construction period, and interference is big, and construction progress is slow.In order to solve the problem of rigidity sudden change, stress raisers, also the someone has proposed to overcome the problem of rigidity sudden change, stress raisers in the middle method that increases rubber pad of original rigid mount recently; But effect is not fine, and is especially relatively poor for earthquake-resistant effect.
Find the patent documentation report relevant for shock mount in Patent Office of the People's Republic of China's retrieval, the main patent relevant with the application is following:
1, the patent No. is: 200820077375.8, and name is called: shock mount
This patent discloses a kind of bridge shock mount.Its major technique is characterized as: comprise upper base plate, middle steel liner plate, following seat board and base plate, be provided with limiting plate between following seat board and base plate, be provided with the bar shaped damping block between described limiting plate and base plate.The shock mount that the utility model provided, damping block is bar shaped, and is very convenient when not only installing, and the seat board that resets at present is stressed evenly, helps alleviating the influence of earthquake etc.This patent belongs to a kind of shock mount of existing rigidity, therefore has above-mentioned defective equally.
2, the patent No. is: 200920103264.4, and name is called: damping pot rubber bearing certainly resets
This patent discloses a kind of improvement of damping pot rubber bearing structure; It is the pressure-bearing rubber tile that comprises lower support plate, upper bracket plate, middle liner plate in the structure after a kind of automatically reset damping pot rubber bearing improves and have copper sealing ring; Two circular arc slide plates are set between liner plate and the upper bracket plate in the middle of it is characterized in that, are positioned on upper bracket plate lower surface and the middle liner plate upper surface respectively, form a friction pair, between upper bracket plate bottom and the lower support plate basin top side face damped ring is arranged.This patent has increased the rubber flexible layer in rigidity damping in the past, but the just simple rubber layer that increases, so the damping effect that moves for the dislocation that some earthquakes produced is not fine just.
In sum, existing various shock mounts can extending structure during for earthquake the ability of natural vibration period, protection agent structure safety all not enough to some extent, necessary this is improved.
The utility model content
The purpose of the utility model is: structural change in the time of can not adapting to earthquake fully to existing bridge shock mount; Can extending structure the scarce capacity of natural vibration period, protection agent structure safety, can extending structure when a kind of earthquake is provided the friction pendulum damping reset abutment of natural vibration period, protection agent structure safety.
The technical scheme of the utility model is:
A kind of friction pendulum damping reset abutment comprises board component, goes up moving block, two spherical rotation piece, limited block, moving block, board component down down that last moving block is installed on two spherical rotation pieces, and last moving block and pair spherical rotation pieces are middle to have last friction pair; Two spherical rotation pieces are installed in down on the moving block, in the middle of two spherical rotation pieces and the following moving block following friction pair are arranged; On last moving block, limited block is installed; Main effect is that the two spherical rotation piece horizontal directions of restriction move; When earthquake takes place; In case the earthquake horizontal force is greater than the design shearing resistance of limited block, limited block breaks off, and two spherical rotation piece levels move to beginning to come and go; Through the arc surface of two spherical rotation pieces, prolonged bridge basic natural vibration period greatly; Simultaneously through have high abrasion, modified ultra-high molecular weight polyethylene plate high temperature resistant and stable friction factor is converted into heat energy with seismic energy, thereby realized the purpose of shock insulation and power consumption.
The supplementary technology scheme of the utility model is following:
Preferably, last friction pair is combined with each other by corrosion resistant plate and modified ultra-high molecular weight polyethylene plate with following friction pair and constitutes; Wherein one side is a corrosion resistant plate, and another side is the modified ultra-high molecular weight polyethylene plate.
Preferably, corrosion resistant plate is connected through arc surface under argon arc welding and last moving block arc surface, the two spherical rotation piece.
Preferably, the modified ultra-high molecular weight polyethylene plate is to dig a counter sink through arc surface on two spherical rotation pieces and following moving block arc surface, is connected the recessed counter sink of modified ultra-high molecular weight polyethylene plate.
The beneficial effect of the utility model is: the utility model is installed between bridge and the bridge pier; Make carrying that bearing has except itself, provide the functions such as corner; Also extra increased prolong bridge basic natural vibration period, simultaneously through have high abrasion, modified ultra-high molecular weight polyethylene plate high temperature resistant and stable friction factor is converted into heat energy with seismic energy, thereby realize the function of shock insulation and power consumption.Friction pendulum damping reset abutment has changed dynamic Characteristics of Structure, has prolonged free vibration period of structure, has protected the safety of agent structure, and does not change the original appearance of structure, installs also very simple, convenient.
Description of drawings
The elevation of friction pendulum damping reset abutment shown in Figure 1.
The vertical view of friction pendulum damping reset abutment shown in Figure 2.
Wherein, Reference numeral: 1 is that last board component, 2 is board component down for moving block down, 8 for limited block, 7 for friction pair down, 6 for two spherical rotation pieces, 5 for last friction pair, 4 for last moving block, 3.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The specific embodiment of the utility model, as shown in Figure 1, a kind of friction pendulum damping reset abutment that is used to bear vertical force between bridge and the bridge pier that is installed in.Comprise board component 1, go up moving block 2, two spherical rotation piece 4, limited block 6, moving block 7, board component 8 etc. down down, last moving block 2 is installed on two spherical rotation pieces 4, the middle upward friction pair 3 that forms; Two spherical rotation pieces 4 are installed in down on the moving block 7, the middle friction pair 5 down that forms; Last friction pair 3 is made up of corrosion resistant plate and modified ultra-high molecular weight polyethylene plate with following friction pair 5.Limited block 6 is installed on the moving block 2; Main effect is that two spherical rotation piece 4 horizontal directions of restriction move, when earthquake takes place, in case the earthquake horizontal force is greater than the design shearing resistance of limited block 6; Limited block 6 breaks off; Two spherical rotation piece 4 levels come and go to move to beginning, and through the specific arc surface of two spherical rotation piece 4, have prolonged bridge basic natural vibration period greatly; Simultaneously through have high abrasion, modified ultra-high molecular weight polyethylene plate high temperature resistant and stable friction factor is converted into heat energy with seismic energy, thereby realized the purpose of shock insulation and power consumption.
Board component 1 is installed in the beam bottom on the utility model, and following board component 8 is installed on the bridge pier bearing pad pinner.Under the normal condition, the utility model function is consistent in the fixed ball shaped steel bearing, promptly possesses vertical carrying, function such as rotation is provided, and rotating function rotates realization each other by between last moving block 2 and the two spherical rotation pieces 4.When earthquake takes place, in case the earthquake horizontal force greater than the design shearing resistance of limited block 6, limited block 6 breaks off, two spherical rotation piece 4 levels move to beginning to come and go, and through the specific arc surface of two spherical rotation piece 4, have prolonged bridge basic natural vibration period greatly; Simultaneously through have high abrasion, modified ultra-high molecular weight polyethylene plate high temperature resistant and stable friction factor is converted into heat energy with seismic energy, thereby realized the purpose of shock insulation and power consumption.
Claims (4)
1. friction pendulum damping reset abutment; It is characterized in that: comprise board component, last moving block, two spherical rotation piece, limited block, following moving block, following board component; Last moving block is installed on two spherical rotation pieces, in the middle of last moving block and the two spherical rotation pieces last friction pair is arranged; Two spherical rotation pieces are installed in down on the moving block, in the middle of two spherical rotation pieces and the following moving block following friction pair are arranged; On last moving block, limited block is installed.
2. friction pendulum damping reset abutment according to claim 1 is characterized in that, last friction pair is combined with each other by corrosion resistant plate and modified ultra-high molecular weight polyethylene plate with following friction pair and constitutes; Wherein one side is a corrosion resistant plate, and another side is the modified ultra-high molecular weight polyethylene plate.
3. friction pendulum damping reset abutment according to claim 1 is characterized in that, corrosion resistant plate is connected through arc surface under argon arc welding and last moving block arc surface, the two spherical rotation piece.
4. friction pendulum damping reset abutment according to claim 1; It is characterized in that; The modified ultra-high molecular weight polyethylene plate is to dig a counter sink through arc surface on two spherical rotation pieces and following moving block arc surface, is connected the recessed counter sink of modified ultra-high molecular weight polyethylene plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203595947U CN202227262U (en) | 2011-09-23 | 2011-09-23 | Damping and resetting support for friction pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203595947U CN202227262U (en) | 2011-09-23 | 2011-09-23 | Damping and resetting support for friction pendulum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227262U true CN202227262U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203595947U Expired - Lifetime CN202227262U (en) | 2011-09-23 | 2011-09-23 | Damping and resetting support for friction pendulum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227262U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677586A (en) * | 2012-05-25 | 2012-09-19 | 中交第二公路勘察设计研究院有限公司 | Rectangular spherical hinge adjusting gradient laminated rubber bearing for highway bridge |
| CN103243644A (en) * | 2013-06-05 | 2013-08-14 | 西安中交土木科技有限公司 | Variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing |
| CN113582041A (en) * | 2021-06-22 | 2021-11-02 | 宜兴同展精密模架有限公司 | Hoisting device for mold frame production and processing |
-
2011
- 2011-09-23 CN CN2011203595947U patent/CN202227262U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677586A (en) * | 2012-05-25 | 2012-09-19 | 中交第二公路勘察设计研究院有限公司 | Rectangular spherical hinge adjusting gradient laminated rubber bearing for highway bridge |
| CN103243644A (en) * | 2013-06-05 | 2013-08-14 | 西安中交土木科技有限公司 | Variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing |
| CN103243644B (en) * | 2013-06-05 | 2015-06-17 | 西安中交土木科技有限公司 | Variable-curvature self-adaptive friction pendulum seismic mitigation and absorption bearing |
| CN113582041A (en) * | 2021-06-22 | 2021-11-02 | 宜兴同展精密模架有限公司 | Hoisting device for mold frame production and processing |
| CN113582041B (en) * | 2021-06-22 | 2024-04-19 | 宜兴同展精密模架有限公司 | Hoisting device for die carrier production and processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |