CN101806097A - Tensile prestress rubber earthquake isolation support - Google Patents
Tensile prestress rubber earthquake isolation support Download PDFInfo
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- CN101806097A CN101806097A CN 201010130595 CN201010130595A CN101806097A CN 101806097 A CN101806097 A CN 101806097A CN 201010130595 CN201010130595 CN 201010130595 CN 201010130595 A CN201010130595 A CN 201010130595A CN 101806097 A CN101806097 A CN 101806097A
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Abstract
The invention relates to a prestress rubber earthquake isolation support and belongs to the field of structural earthquake isolation control. The tensile prestress rubber earthquake isolation support consists of upper and lower connecting steel plates, an internal thin steel plate, an internal rubber layer, a prestress steel strand and an anchorage device. The internal thin steel plate and the internal rubber layer are alternately overlapped; and the internal thin steel plate, the internal rubber layer and an external rubber protective layer are connected with the upper and lower connecting steel plates by high-temperature and high-pressure vulcanization, and the internal prestress steel stand is connected with the upper and lower connecting plates by the anchorage device. In the prestress rubber support, the insufficient tensile strength is compensated by the large tensile pressure bearing capacity of the rubber support; and before the support bears a service load, a pressure stress is applied in advanced, so that the support, in high-level earthquake, maintains a pressed or low-tensile stress state for ensuring the safety of a earthquake isolation structure system. The support has a simple structure, applies a clear earthquake isolation mechanism and is suitable for earthquake isolation control of large structures with high earthquake-resistance requirements, such as high-rise buildings, tower structures and large-span bridges.
Description
Technical field
The present invention relates to structure shock isolating pedestal devices such as building, bridge, especially relate to a kind of tensile prestress rubber earthquake isolation support that is applied to large-scale structure such as highrise building, pyramidal structure and Longspan Bridge.
Background technology
In earthquake, bring into play due function in order to ensure structure such as building, bridges, reduce earthquake disaster, seismic isolation technology is as a kind of effective structural damping control technology, be subjected to the extensive concern of engineering and academia, and at home and abroad be widely used in the engineering structures antidetonations such as building, bridge.The shock isolating pedestal performance has determined the isolating affection and the anti-seismic performance of isolation structure system, thereby develops high performance vibration absorption and isolation support and become the key issue in the seismic isolation technology.
Good shock isolation system should satisfy four basic functions, and (1) is flexibility reasonably; (2) good energy dissipation capacity; (3) initial rigidity, yield force; (4) rapid reset capability.At present, be used to build, the earthquake isolating equipment that subtracts of bridge and other structure mainly contains energy-dissipating devices such as laminated rubber bases, lead core rubber support, high-damping rubber bearing, friction pendulum system and various dampers.All there is weak point in these bearings should be in highrise building, Longspan Bridge and other large-scale structure the time.
There is result of use preferably in the friction pendulum system to the medium and small footpath bridge of striding, but under shake effect doughtily, the horizontal movement amplitude is restricted, and is difficult to guarantee the needs of highrise building, the big displacement of long-span bridge girder construction under severe earthquake action.
The resistance to tension of conventional neoprene bearing (laminated rubber bases, lead core rubber support and high-damping rubber bearing etc.) is poor, the vertical stretch capability of neoprene bearing is much smaller than vertical compressed capability, its boundary stretch capability only is 1/tens of a compressed capability, reaches 1～2N/mm in tensile stress under stretching or the shear strain state merely
2, the tensile stress state may appear in bearing.Present stage is owing to tensile stress appears in strict control rubber earthquake isolation support in the design, or the strict regulations tensile stress the regulation little stress range in, under the rarely occurred earthquake effect, tensile stress should not appear in shock isolating pedestal, when unavoidably being in tension state, its tensile stress should≤1.2MPa.Can satisfy for the average physique shock-insulating building this regulation, but under the acting in conjunction of horizontal earthquake and vertical earthquake, in the isolation structure systems such as highrise building, pyramidal structure and Longspan Bridge isolation structure, be difficult to guarantee that bigger tensile stress appears in bearing, may make the generation tensile failure of bearing, and then the destruction that causes engineering structures.
Summary of the invention
It is poor to the objective of the invention is at existing lead core rubber support resistance to tension, under the acting in conjunction of horizontal earthquake and vertical earthquake, lead core rubber support is prone to the tensile failure problem in highrise building, pyramidal structure and the Longspan Bridge isolation structure, provide a kind of tensile prestress rubber earthquake isolation support, to solve the stretch-proof problem of shock isolating pedestals such as highrise building, pyramidal structure and Longspan Bridge.
Technical scheme of the present invention is as follows:
A kind of tensile prestress rubber earthquake isolation support; by last; under connect steel plate; the inner thin steel plate; inner rubber; the high-purity lead for retractable pencil; prestress wire and ground tackle are formed; it is characterized in that: described inner thin steel plate and inner rubber are superimposed to form overlapping layers; on the overlapping layers; soffit is respectively arranged with; under connect steel plate; the overlapping layers periphery is enclosed with outside rubber cover; the overlapping layers center is provided with a bearing centre bore; be provided with the high-purity lead for retractable pencil in the bearing centre bore; the inner thin steel plate; inner rubber; outside rubber cover and last; under connect steel plate and high-purity lead for retractable pencil through high temperature; high pressure sulfides the formation lead core rubber support; lead core rubber support is provided with prestress wire, and the prestress wire two ends are anchored at respectively; connect down on the ground tackle in the steel plate.
Before bearing bears service load, this bearing is applied compressive stress in advance, thereby form tensile prestress rubber earthquake isolation support.
Described prestress wire can be arranged in the bearing overlapping layers, vertically runs through overlapping layers, constitutes tensile prestress formula lead core rubber support in the bearing body.
Described prestress wire also can be arranged at outside the bearing overlapping layers, and prestress wire directly is anchored on the interior ground tackle of upper and lower connection steel plate, constitutes the outer tensile prestress formula lead core rubber support of bearing body.
Described upper and lower connection steel plate is provided with the connecting bolt hole, is connected with structure.
Beneficial effect: tensile prestress rubber earthquake isolation support of the present invention utilizes neoprene bearing resistance to compression bearing capacity to remedy the resistance to tension deficiency greatly, and under rarely occurred earthquake, bearing remains on pressurized or little tensile stress state, guarantees isolation structure safety.This seat structure is simple, and shock insulation mechanism is clear and definite, is applicable to the shock insulation control of the demanding highrise building of anti-seismic performance, pyramidal structure, Longspan Bridge and other large-scale structure.
Description of drawings
Fig. 1 is the structural representation of tensile prestress shock isolating pedestal (tensile prestress formula in the bearing body);
Fig. 2 is the profile of tensile prestress shock isolating pedestal (tensile prestress formula in the bearing body);
Fig. 3 is the structural representation of tensile prestress shock isolating pedestal (the outer tensile prestress formula of bearing body);
Fig. 4 is the profile of tensile prestress shock isolating pedestal (the outer tensile prestress formula of bearing body).
Description of reference numerals:
1-connecting bolt hole; 2-prestress wire; 3-upper end connects steel plate; 4-lead for retractable pencil; 5-ground tackle; 6-outside rubber layer; 7-inner rubber; 8-inner thin steel plate; 9-lower end connects steel plate.
The specific embodiment
Tensile prestress rubber earthquake isolation support has two kinds to execute mode, and a kind of is tensile prestress formula rubber earthquake isolation support in the bearing body, as depicted in figs. 1 and 2; A kind of is the outer tensile prestress formula rubber earthquake isolation support of bearing body, as shown in Figure 3 and Figure 4.
Embodiment 1
Now this discovery is described further in conjunction with tensile prestress formula rubber earthquake isolation support in the bearing body.
Fig. 1 is a tensile prestress formula rubber earthquake isolation support structural representation in the bearing body, and Fig. 2 is a tensile prestress formula rubber earthquake isolation support profile in the bearing body.This bearing is by last; under connect steel plate 3 and 9; inner rubber 7; inner thin steel plate 8; high-purity lead for retractable pencil 4; prestress wire 2 and ground tackle 5 are formed; inner rubber 7 is superimposed to form overlapping layers with inner thin steel plate 8; on the overlapping layers; soffit is respectively arranged with; under connect steel plate 3 and 9; the overlapping layers periphery is enclosed with outside rubber cover 6; the overlapping layers center is provided with a bearing centre bore; be provided with high-purity lead for retractable pencil 4 in the bearing centre bore; inner rubber 7; inner thin steel plate 8; outside rubber cover 6 is with last; under connect steel plate 3 and 9 and high-purity lead for retractable pencil 4 be through high temperature; high pressure sulfides the formation neoprene bearing; neoprene bearing is provided with prestress wire 2, and prestress wire 2 two ends connect respectively and are anchored at; connect down on the ground tackle 5 in steel plate 3 and 9.Wherein, prestress wire 2 is arranged in the bearing overlapping layers, vertically runs through overlapping layers, constitutes tensile prestress formula neoprene bearing in the bearing body.Before bearing bears service load, this bearing is applied compressive stress in advance, and connect with the upper and lower steel plate 3,9 that is connected by ground tackle 5.
Now the invention will be further described in conjunction with the outer formula tensile prestress rubber earthquake isolation support of bearing body.
Fig. 3 is the outer tensile prestress formula rubber earthquake isolation support structural representation of bearing body, and Fig. 4 is the outer tensile prestress formula rubber earthquake isolation support profile of bearing body.This bearing is by last; under connect steel plate 3 and 9; inner rubber 7; inner thin steel plate 8; high-purity lead for retractable pencil 4; prestress wire 2 and ground tackle 5 are formed; inner rubber 7 is superimposed to form overlapping layers with inner thin steel plate 8; on the overlapping layers; soffit is respectively arranged with; under connect steel plate 3 and 9; the overlapping layers periphery is enclosed with outside rubber cover 6; the overlapping layers center is provided with a bearing centre bore; be provided with high-purity lead for retractable pencil 4 in the bearing centre bore; inner rubber 7; inner thin steel plate 8; outside rubber cover 6 is with last; under connect steel plate 3 and 9 and high-purity lead for retractable pencil 4 through high temperature; high pressure sulfides the formation neoprene bearing; neoprene bearing is provided with prestress wire 2, and prestress wire 2 two ends are anchored at respectively; connect down on the ground tackle 5 in steel plate 3 and 9.Wherein, prestress wire 2 is arranged at outside the bearing overlapping layers, and prestress wire 2 directly connects on the ground tackle 5 of upper and lower connection steel plate 3 and 9, constitutes the outer tensile prestress formula neoprene bearing of bearing body.Before bearing bears service load, this bearing is applied compressive stress in advance, and connect with the upper and lower steel plate 3,9 that is connected by ground tackle 5.
Tensile prestress rubber earthquake isolation support of the present invention can utilize neoprene bearing resistance to compression bearing capacity to remedy the resistance to tension deficiency greatly, and under the rarely occurred earthquake, bearing remains on pressurized or little tensile stress state, guarantees isolation structure safety.This seat structure is simple, and shock insulation mechanism is clear and definite, is applicable to the shock insulation control of the demanding highrise building of anti-seismic performance, pyramidal structure, Longspan Bridge and other large-scale structure, has extensive popularizing value.
Claims (5)
1. tensile prestress rubber earthquake isolation support; by last; under connect steel plate (3; 9); inner rubber (7); inner thin steel plate (8); high-purity lead for retractable pencil (4); prestress wire (2) and ground tackle (5) are formed; it is characterized in that: described inner rubber (7) is superimposed to form overlapping layers with inner thin steel plate (8); on the overlapping layers; soffit is respectively arranged with; under connect steel plate (3; 9); the overlapping layers periphery is enclosed with outside rubber cover (6); the overlapping layers center is provided with a bearing centre bore; be provided with high-purity lead for retractable pencil (4) in the bearing centre bore; inner rubber (7); inner thin steel plate (8); outside rubber cover (6) is with last; under connect steel plate (3; 9) and high-purity lead for retractable pencil (4) be through high temperature; high pressure sulfides the formation neoprene bearing; neoprene bearing is provided with prestress wire (2), and prestress wire (2) two ends are anchored at respectively; under connect steel plate (3; 9) on Nei the ground tackle (5).
2. tensile prestress rubber earthquake isolation support according to claim 1 is characterized in that: before bearing bears service load, this bearing is applied compressive stress in advance, thereby form tensile prestress rubber earthquake isolation support.
3. tensile prestress rubber earthquake isolation support according to claim 2, it is characterized in that: described prestress wire (2) is arranged in the bearing overlapping layers, vertically run through overlapping layers, be anchored on the ground tackle (5) in the upper and lower connection steel plate (3,9), constitute tensile prestress formula rubber earthquake isolation support in the bearing body.
4. tensile prestress rubber earthquake isolation support according to claim 2, it is characterized in that: described prestress wire (2) is arranged at outside the bearing overlapping layers, prestress wire (2) directly is anchored on the interior ground tackle (5) of upper and lower connection steel plate (3,9), constitutes the outer tensile prestress formula rubber earthquake isolation support of bearing body.
5. according to claim 3 or 4 described tensile prestress rubber earthquake isolation supports, it is characterized in that: described upper and lower connection steel plate (3,9) is provided with the bolt hole (1) of syndeton and shock isolating pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010130595 CN101806097A (en) | 2010-03-22 | 2010-03-22 | Tensile prestress rubber earthquake isolation support |
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| CN 201010130595 CN101806097A (en) | 2010-03-22 | 2010-03-22 | Tensile prestress rubber earthquake isolation support |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839751A (en) * | 2012-10-10 | 2012-12-26 | 衡水震泰隔震器材有限公司 | Three-dimensional shock-isolated bearing and preparation method for same |
| CN103469896A (en) * | 2013-09-27 | 2013-12-25 | 无锡圣丰建筑新材料有限公司 | Anti-drawing shock-isolating rubber support |
| CN104153480A (en) * | 2014-08-14 | 2014-11-19 | 朱幕松 | Rolling cutting type all-directional automatic shock isolation device |
| CN104831621A (en) * | 2015-05-13 | 2015-08-12 | 北京工业大学 | Guide rail type anti-drawing high-damping rubber shock insulation support |
| CN104947828A (en) * | 2015-07-06 | 2015-09-30 | 西南科技大学 | Lead core recycled tire shock insulation cushion |
| CN104989001A (en) * | 2015-06-24 | 2015-10-21 | 上海核工程研究设计院 | Anti-pulling shearing locking device |
| CN105155720A (en) * | 2015-10-08 | 2015-12-16 | 无锡圣丰建筑新材料有限公司 | Adjustable steel cable position limiting shock isolation rubber support seat |
| CN105803928A (en) * | 2016-03-23 | 2016-07-27 | 柳州东方工程橡胶制品有限公司 | Dual-anti-drawing isolation support |
| CN106090099A (en) * | 2016-08-10 | 2016-11-09 | 中国电力科学研究院 | Earthquake isolating equipment |
| CN104153480B (en) * | 2014-08-14 | 2016-11-30 | 江苏远华轻化装备有限公司 | The comprehensive automatic earthquake isolating equipment of rolling shear type |
| CN106592806A (en) * | 2017-01-09 | 2017-04-26 | 北京鸿基瑞安减震科技有限公司 | High-damping metal shearing hysteresis energy dissipater |
| CN106677368A (en) * | 2017-03-01 | 2017-05-17 | 北京建筑大学 | Anti-drawing rubber shock-insulating supporting seat with foamed aluminum core |
| CN108560408A (en) * | 2018-04-28 | 2018-09-21 | 中国建筑股份有限公司 | A kind of lead for retractable pencil metal rubber support and its construction method |
| CN108625655A (en) * | 2018-06-26 | 2018-10-09 | 西北民族大学 | A kind of built-in sliding friction type rubber support combined isolation device |
| CN109235683A (en) * | 2018-09-07 | 2019-01-18 | 昆明理工大学 | A kind of tensile device and method of shock-insulation building |
| CN109339271A (en) * | 2018-10-15 | 2019-02-15 | 东南大学 | Assembled viscoplasticity vibration damping/shake device and its vibration damping/shake method |
| CN109537758A (en) * | 2018-12-17 | 2019-03-29 | 天津大学 | A kind of self-locking mortise and tenon type building module vibration isolator rubber bearing |
| CN110397176A (en) * | 2019-07-06 | 2019-11-01 | 天津大学 | A kind of steel structure module building intercolumniation rubber vibration isolation system |
| CN111945566A (en) * | 2020-08-04 | 2020-11-17 | 江苏瑞沃建设集团有限公司 | Road and bridge assembly type construction method and manufacturing process of multi-effect foundation assembly |
| CN112376975A (en) * | 2020-11-30 | 2021-02-19 | 薛人芳 | Shock insulation system of high-rise building based on rubber shock absorption |
| CN113107104A (en) * | 2021-04-06 | 2021-07-13 | 东莞理工学院 | Improved energy dissipation cantilever control system |
| CN113152972A (en) * | 2020-12-12 | 2021-07-23 | 北京工业大学 | Prestress variable-rigidity three-dimensional shock isolation support |
| CN114737810A (en) * | 2022-04-11 | 2022-07-12 | 上海建工一建集团有限公司 | Shock insulation combined support and construction method |
| CN114993833A (en) * | 2022-08-03 | 2022-09-02 | 广州大学 | Prestress detection system and detection method for prestress rubber shock insulation support |
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Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839751A (en) * | 2012-10-10 | 2012-12-26 | 衡水震泰隔震器材有限公司 | Three-dimensional shock-isolated bearing and preparation method for same |
| CN103469896A (en) * | 2013-09-27 | 2013-12-25 | 无锡圣丰建筑新材料有限公司 | Anti-drawing shock-isolating rubber support |
| CN104153480A (en) * | 2014-08-14 | 2014-11-19 | 朱幕松 | Rolling cutting type all-directional automatic shock isolation device |
| CN104153480B (en) * | 2014-08-14 | 2016-11-30 | 江苏远华轻化装备有限公司 | The comprehensive automatic earthquake isolating equipment of rolling shear type |
| CN104831621A (en) * | 2015-05-13 | 2015-08-12 | 北京工业大学 | Guide rail type anti-drawing high-damping rubber shock insulation support |
| CN104831621B (en) * | 2015-05-13 | 2017-02-22 | 北京工业大学 | Guide rail type anti-drawing high-damping rubber shock insulation support |
| CN104989001A (en) * | 2015-06-24 | 2015-10-21 | 上海核工程研究设计院 | Anti-pulling shearing locking device |
| CN104947828A (en) * | 2015-07-06 | 2015-09-30 | 西南科技大学 | Lead core recycled tire shock insulation cushion |
| CN105155720B (en) * | 2015-10-08 | 2017-10-31 | 无锡圣丰建筑新材料有限公司 | The adjustable spacing shock insulation rubber bearing of cable wire |
| CN105155720A (en) * | 2015-10-08 | 2015-12-16 | 无锡圣丰建筑新材料有限公司 | Adjustable steel cable position limiting shock isolation rubber support seat |
| CN105803928A (en) * | 2016-03-23 | 2016-07-27 | 柳州东方工程橡胶制品有限公司 | Dual-anti-drawing isolation support |
| CN106090099A (en) * | 2016-08-10 | 2016-11-09 | 中国电力科学研究院 | Earthquake isolating equipment |
| CN106592806A (en) * | 2017-01-09 | 2017-04-26 | 北京鸿基瑞安减震科技有限公司 | High-damping metal shearing hysteresis energy dissipater |
| CN106592806B (en) * | 2017-01-09 | 2022-08-16 | 北京鸿基瑞安减震科技有限公司 | High-damping metal shearing hysteresis energy dissipater |
| CN106677368A (en) * | 2017-03-01 | 2017-05-17 | 北京建筑大学 | Anti-drawing rubber shock-insulating supporting seat with foamed aluminum core |
| CN106677368B (en) * | 2017-03-01 | 2019-02-22 | 北京建筑大学 | A kind of anti-pulling foamed aluminum-core rubber earthquake isolation support |
| CN108560408A (en) * | 2018-04-28 | 2018-09-21 | 中国建筑股份有限公司 | A kind of lead for retractable pencil metal rubber support and its construction method |
| CN108560408B (en) * | 2018-04-28 | 2024-01-23 | 中国建筑股份有限公司 | Lead core metal rubber support and construction method thereof |
| CN108625655A (en) * | 2018-06-26 | 2018-10-09 | 西北民族大学 | A kind of built-in sliding friction type rubber support combined isolation device |
| CN108625655B (en) * | 2018-06-26 | 2023-09-22 | 西北民族大学 | Built-in sliding friction type rubber support combined shock insulation device |
| CN109235683A (en) * | 2018-09-07 | 2019-01-18 | 昆明理工大学 | A kind of tensile device and method of shock-insulation building |
| CN109339271A (en) * | 2018-10-15 | 2019-02-15 | 东南大学 | Assembled viscoplasticity vibration damping/shake device and its vibration damping/shake method |
| CN109537758A (en) * | 2018-12-17 | 2019-03-29 | 天津大学 | A kind of self-locking mortise and tenon type building module vibration isolator rubber bearing |
| CN110397176A (en) * | 2019-07-06 | 2019-11-01 | 天津大学 | A kind of steel structure module building intercolumniation rubber vibration isolation system |
| CN111945566A (en) * | 2020-08-04 | 2020-11-17 | 江苏瑞沃建设集团有限公司 | Road and bridge assembly type construction method and manufacturing process of multi-effect foundation assembly |
| CN112376975A (en) * | 2020-11-30 | 2021-02-19 | 薛人芳 | Shock insulation system of high-rise building based on rubber shock absorption |
| CN113152972A (en) * | 2020-12-12 | 2021-07-23 | 北京工业大学 | Prestress variable-rigidity three-dimensional shock isolation support |
| CN113107104A (en) * | 2021-04-06 | 2021-07-13 | 东莞理工学院 | Improved energy dissipation cantilever control system |
| CN114737810A (en) * | 2022-04-11 | 2022-07-12 | 上海建工一建集团有限公司 | Shock insulation combined support and construction method |
| CN114737810B (en) * | 2022-04-11 | 2024-02-13 | 上海建工一建集团有限公司 | Shock insulation combined support and construction method |
| CN114993833A (en) * | 2022-08-03 | 2022-09-02 | 广州大学 | Prestress detection system and detection method for prestress rubber shock insulation support |
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Open date: 20100818 |