CN201593162U - Nonlinear damping spoke shock absorption and isolation support - Google Patents
Nonlinear damping spoke shock absorption and isolation support Download PDFInfo
- Publication number
- CN201593162U CN201593162U CN 201020020510 CN201020020510U CN201593162U CN 201593162 U CN201593162 U CN 201593162U CN 201020020510 CN201020020510 CN 201020020510 CN 201020020510 U CN201020020510 U CN 201020020510U CN 201593162 U CN201593162 U CN 201593162U
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- linear damping
- board
- seat board
- damping radiation
- liner plate
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Abstract
The utility model relates to a nonlinear damping spoke shock absorption and isolation support. Main structures of existing supports are similar, but actual shock resistant effects can not meet the requirements of current use because of various limits of structures and materials of the existing supports. The nonlinear damping spoke shock absorption and isolation support comprises a support body and a shock absorption and isolation device; the support body includes an upper seat board, a middle lining board and a lower seat board; a function board is clamped between the middle lining board and the lower seat board; the shock absorption and isolation device includes limit blocks and nonlinear damping spokes; a plurality of the limit blocks are fixedly and evenly arranged on the surface of the lower seat board and the outer side of the middle lining board; the limit blocks are connected with the lower seat board through limit energy consumption bolts; one end of each nonlinear damping spoke is fixedly connected with the middle lining board; the other end of each nonlinear damping spoke is fixedly connected with the lower seat board; and a plurality of the nonlinear damping spokes are evenly wound on the outer side of the middle lining board. The nonlinear damping spoke shock absorption and isolation support has all functions of a common support, and is capable of decreasing or isolating the influence of earthquakes on bridges or other building structures.
Description
Technical field
The utility model relates to the bracing or strutting arrangement technical field of bridge and other construction work, is specifically related to a kind of non-linear damping radiation vibration absorption and isolation support.
Background technology
Bearing is one of important composition parts in bridge and the construction work, and its effect is that the upper load with bridge and building structure is delivered on the pier by bearing, guarantees the needs of desired stressed, displacement of structure and rotation simultaneously.
In recent years, along with the increasing of country to the infrastructure construction dynamics, bridge and construction work have obtained high speed development, and all kinds of new structure patterns and functional bridge and building continue to bring out, and also technical performance, function and the cost etc. of bearing are had higher requirement simultaneously.Particularly after the 512 Wenchuan violent earthquakes, people clearly realize that the seriousness of earthquake disaster more, and the anti-seismic performance of engineering construction is had higher requirement.The expert of more domestic scientific research institutions and scholar have successively proposed some dissimilar antidetonations, vibration absorption and isolation support.
At present, the domestic antishock device that is used for bridge and other construction work mainly contains lead for retractable pencil shock insulation rubber bearing, shock insulation laminated rubber bearing, polyurethane spring spherical bearing, big friction factor aseismatic bearing and hyperboloid spheroidal bearer of shock absorption and insulation etc., characteristics are respectively arranged, and part also comes with some shortcomings.
The lead for retractable pencil shock insulation rubber bearing, reason such as relatively poor owing to durability, that supporting capacity is little, environment pollution is serious will be replaced by other vibration absorption and isolation support gradually.
The shock insulation laminated rubber bearing is because durability is relatively poor, supporting capacity is less, is subjected to certain limitation in the use.
The polyurethane spring spherical bearing is because poor durability, to bend the back displacement little, also has been subjected to certain limitation in the use.
Big friction factor aseismatic bearing, because it is bigger to be delivered to the earthquake lateral force of substructure, only relies on the friction pair earthquake energy of big friction factor, and restoring force can not be provided, can only be as a kind of anti-seismic construction effect, and actual anti seismic efficiency does not satisfy the structure designing requirement yet.
Hyperboloid spheroidal bearer of shock absorption and insulation has durability and supporting capacity preferably, on some engineerings, also obtained application, but by it being analyzed and the actual situation discovery of using, it is still not ideal enough that this kind bearing subtracts isolating affection, it is main because it has adopted the hyperboloid structure, in the use particularly in bending back displacement process, superstructure can produce bigger vertical displacement and corner displacement, particularly will produce bigger additional bending moment for continuous girder bridge, also might resonate with the carrying agent structure, thereby bring adverse influence to structure, and under limit seismic force effects, the carrying agent structure has and is left the possibility that maybe can't reset.Therefore, this structure still belongs to seismic design in essence one time, and actual anti seismic efficiency is subjected to certain limitation.
The agent structure type of bearing mainly contains ball-type, basin type and template at present, and their structural similarity all comprises upper base plate, middle liner plate and following seat board substantially, to satisfy the basic function of use of bearing.According to the different demands in the practical application, between upper base plate and middle liner plate, between middle liner plate and the following seat board function corresponding assembly is set, again to satisfy the specific (special) requirements of structure design.Various antidetonation described above, vibration absorption and isolation support, because of the various restrictions of its structure and material aspect, actual anti seismic efficiency has not satisfied the instructions for use in the current structure design, presses for and improves and redesign.
The utility model content
The utility model provides a kind of non-linear damping radiation vibration absorption and isolation support, the back displacement in the wrong that prior art exists is less to solve, a little less than the restoring force, subtract the undesirable problem of isolating affection.
For effectively overcoming problems of the prior art, technical solution of the present utility model is: a kind of non-linear damping radiation vibration absorption and isolation support, comprise a seat body, described seat body comprises upper base plate, middle liner plate and following seat board, be folded with feature board between middle liner plate and the following seat board, its special character is: also comprise subtracting earthquake isolating equipment, the described earthquake isolating equipment that subtracts comprises limited block and non-linear damping radiation, the surface of described seat board down, the outside of middle liner plate are fixed and evenly are provided with several limited blocks, and limited block is connected with following seat board by spacing power consumption bolt; One end of described non-linear damping radiation is fixedlyed connected with middle liner plate, and the other end is fixedlyed connected with following seat board, and non-linear damping radiation comprises several outside the liner plate in uniform being around in.
That above-mentioned seat body can adopt is board-like, the structural shape of benzvalene form or ball-type.
The above-mentioned functions plate is high friction plate, and limited block and middle liner plate are fitted closely.Form the fixed bearing.
The above-mentioned functions plate is a sliding panel, the described earthquake isolating equipment that subtracts also comprises the cushion block that is provided with on the following seat board, one end of non-linear damping radiation connects with it, wherein a pair of cushion block is provided with limit sliding chutes, the end of the non-linear damping radiation that length direction is consistent with glide direction is arranged in the limit sliding chutes, is provided with between limited block on the glide direction and the middle liner plate to slide at interval.Constitute unidirectional active type bearing.
The above-mentioned functions plate is a sliding panel, and the described earthquake isolating equipment that subtracts also comprises the cushion block that is provided with on the following seat board, is provided with limit sliding chutes on the cushion block, and the end of non-linear damping radiation is arranged in the limit sliding chutes, is provided with between limited block and the middle liner plate to slide at interval.Constitute multidirectional active type bearing.
The incline direction of the chute of above-mentioned limit sliding chutes is consistent with the sliding trajectory of non-linear damping radiation.Guarantee that bearing is unfettered in the displacement of normal operating condition lower edge activity direction.
Above-mentioned limited block is provided with four, and corresponding non-linear damping radiation also is provided with four.Two action directions are vertical mutually.
The utility model has the repertoire of existing common bearing on the one hand, can play on the other hand to subtract function of shock insulation, promptly when earthquake takes place, by propping up seat body and subtracting the shock insulation member, reduces or isolates the influence of earthquake to bridge or other building structure.Specifically, be embodied in the following aspects:
The utility model has increased limited block, caging bolt, non-linear damping radiation etc. and has subtracted the shock insulation member, make when exposure level power or generation earthquake, elastic-plastic deformation modes such as (dampings) by the energy dissipating of spacing power consumption bolt, shift reciprocately friction and non-linear damping radiation is come consumed energy, the extending structure vibrations cycle, thereby reduce or isolate the influence of earthquake, realize setting up defences step by step and the classification power consumption structure.Wherein: (1) limited block is connected with following seat board by spacing power consumption bolt, accurately controls the horizontal force size that bearing bears by the big I of adjusting the spacing power consumption diameter of bolt; (2) can satisfy the normal use displacement request of bearing by the permanent position that changes limiting plate, can change the function of use of bearing, make it to be respectively fixed bearing, unidirectional active type bearing, bi-directional movable type bearing; (3) by the normal use displacement request that limit sliding chutes can satisfy bearing is set, its displacement is corresponding with the permanent position of limiting plate, also can change the function of use of bearing; (4) by changing the geomery of non-linear damping radiation, can adjust its rigidity, to bear the varying level power that classification is set up defences under the geological process.
Compared with prior art, the utility model has the advantages that:
1) technically, it is better to subtract isolating affection: the utility model solved for a long time China lack good endurance, restoring force strong, bend the big vibration absorption and isolation support of back displacement for a difficult problem of using on the engineering, displacement structure locking and overall coordination antidetonation have been realized, set up defences step by step, classification power consumption, result of use is good;
2) from economically, cost is more reasonable: because simple for structure, handling ease, so manufacturing cost is lower, easy construction simultaneously, easy, the less engineering investment of maintenance, to structure take precautions against natural calamities, mitigation, especially, have very important significance as antidetonation, the disaster relief of the bridge of lifeline engineering;
3) suitability for mass industrialized production needs: the utlity model has good social economic value, so suitability for mass industrialized production needs.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is that the B of Fig. 3 is to view;
Fig. 5 is the schematic diagram of embodiment 3.
Description of reference numerals is as follows:
The 1-upper base plate, liner plate among the 2-, 3-non-linear damping radiation, seat board under the 4-, 5-limited block, 6-feature board, 7-cushion block, 8-limit sliding chutes.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done and to be described in detail.
What provide in an embodiment with the undersetting body is the ball-type structural shape only, but is not limited to this structural shape.
Under normal condition, bearing is realized a conventional general function by seat body, and realizes the transmission of horizontal force by limited block, and entire infrastructure all is in the lower elastic working stage.
In the use, under normal condition, bearing is realized conventional general function by a seat body, and the middle liner plate 2 of the seat body on non-glide direction is fitted closely with limited block 5, and realizes the transmission of horizontal force by limited block; Have between middle liner plate 2 on the glide direction and the limited block 5 at interval, entire infrastructure all is in the lower elastic working stage.
During use, seat body is anchored in the upper and lower part (girder or pier) of engineering structures, and this structure is no matter positive and negative all can use.
The utility model subtracts the design concept that the shock insulation principle realizes " set up defences step by step, classification power consumption " by following:
(1) under normal operating condition: bearing is realized the transmission of horizontal force by limited block, and entire infrastructure all is in the lower elastic working stage;
(2) meet under the earthquake state normal: a seat body is in the elastic working stage, and the bearing position limiting structure is in the elastoplasticity working stage, and spacing power consumption bolt produces less plastic strain, but not fracture;
(3) when meeting less under the earthquake state: a seat body is in the elastic working stage, and the spacing power consumption bolt of bearing is cut, and consumes the part seismic energy, and non-linear damping radiation and rubbing surface are started working jointly simultaneously, but non-linear damping radiation is in the elastic working stage;
(4) under the rarely occurred earthquake state: a seat body is in the elastoplasticity working stage, bigger plastic strain takes place in non-linear damping radiation, but not fracture, can prolong the earthquake response cycle on the one hand, on the other hand by shift reciprocately friction and the damping seismic energy that dissipates, and make bearing realize active homing, to prevent the landing of beam body, unobstructed, the disaster relief of bridge when guaranteeing to shake.
Therefore, said structure can carry out custom design or selection according to bridge-type structure characteristics and local geological structure.
Claims (7)
1. non-linear damping radiation vibration absorption and isolation support, comprise a seat body, described seat body comprises upper base plate (1), middle liner plate (2) and following seat board (4), be folded with feature board (6) between middle liner plate (2) and the following seat board (4), it is characterized in that: also comprise subtracting earthquake isolating equipment, the described earthquake isolating equipment that subtracts comprises limited block (5) and non-linear damping radiation (3), the surface of described seat board (4) down, the outside of middle liner plate (2) are fixed and evenly are provided with several limited blocks (5), and limited block (5) is connected with following seat board (4) by spacing power consumption bolt; One end of described non-linear damping radiation (3) is fixedlyed connected with middle liner plate (2), and the other end is fixedlyed connected with following seat board (4), and non-linear damping radiation (3) comprises uniform several of middle liner plate (2) outside of being around in.
2. a kind of non-linear damping radiation vibration absorption and isolation support according to claim 1 is characterized in that: described seat body can adopt the structural shape of board-like, benzvalene form or ball-type.
3. a kind of non-linear damping radiation vibration absorption and isolation support according to claim 1 is characterized in that: described feature board (6) is high friction plate, and limited block (5) is fitted closely with middle liner plate (2).
4. according to claim 1 or 3 described a kind of non-linear damping radiation vibration absorption and isolation supports, it is characterized in that: described feature board (6) is a sliding panel, the described earthquake isolating equipment that subtracts comprises that also seat board (4) is gone up the cushion block (7) that is provided with down, one end of non-linear damping radiation (3) connects with it, wherein a pair of cushion block (7) is provided with limit sliding chutes (8), the end of the non-linear damping radiation (4) that length direction is consistent with glide direction is arranged in the limit sliding chutes (8), is provided with between limited block on the glide direction (5) and the middle liner plate (2) to slide at interval.
5. a kind of non-linear damping radiation vibration absorption and isolation support according to claim 4, it is characterized in that: described feature board (6) is a sliding panel, the described earthquake isolating equipment that subtracts comprises that also seat board (4) is gone up the cushion block (7) that is provided with down, be provided with limit sliding chutes (8) on the cushion block (7), the end of non-linear damping radiation (3) is arranged in the limit sliding chutes (8), is provided with between limited block (5) and the middle liner plate (2) to slide at interval.
6. a kind of non-linear damping radiation vibration absorption and isolation support according to claim 5 is characterized in that: the incline direction of the chute of described limit sliding chutes (8) is consistent with the sliding trajectory of non-linear damping radiation (3).
7. a kind of non-linear damping radiation vibration absorption and isolation support according to claim 6 is characterized in that: described limited block (5) is provided with four, and corresponding non-linear damping radiation (3) also is provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020020510 CN201593162U (en) | 2010-01-20 | 2010-01-20 | Nonlinear damping spoke shock absorption and isolation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020020510 CN201593162U (en) | 2010-01-20 | 2010-01-20 | Nonlinear damping spoke shock absorption and isolation support |
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| Publication Number | Publication Date |
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| CN201593162U true CN201593162U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020020510 Expired - Lifetime CN201593162U (en) | 2010-01-20 | 2010-01-20 | Nonlinear damping spoke shock absorption and isolation support |
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| CN (1) | CN201593162U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088603A1 (en) * | 2010-01-20 | 2011-07-28 | 中交第一公路勘察设计研究院有限公司 | Seismic isolation bearing with non-linear dampers |
| CN103437446A (en) * | 2013-09-04 | 2013-12-11 | 王尔其 | House shock isolation device and house |
| CN103669578A (en) * | 2013-12-12 | 2014-03-26 | 海南大学 | Rotary shock insulation support |
| CN106639174A (en) * | 2016-11-03 | 2017-05-10 | 东北林业大学 | Novel heat-preservation and shock-absorption roof |
-
2010
- 2010-01-20 CN CN 201020020510 patent/CN201593162U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011088603A1 (en) * | 2010-01-20 | 2011-07-28 | 中交第一公路勘察设计研究院有限公司 | Seismic isolation bearing with non-linear dampers |
| CN103437446A (en) * | 2013-09-04 | 2013-12-11 | 王尔其 | House shock isolation device and house |
| CN103437446B (en) * | 2013-09-04 | 2016-09-28 | 王尔其 | Steel column is every damping |
| CN103669578A (en) * | 2013-12-12 | 2014-03-26 | 海南大学 | Rotary shock insulation support |
| CN103669578B (en) * | 2013-12-12 | 2017-09-29 | 海南大学 | Rotate shock isolating pedestal |
| CN106639174A (en) * | 2016-11-03 | 2017-05-10 | 东北林业大学 | Novel heat-preservation and shock-absorption roof |
| CN106639174B (en) * | 2016-11-03 | 2017-11-10 | 东北林业大学 | One kind insulation damping roof system |
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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: 20100929 |
|
| CX01 | Expiry of patent term |