CN201778394U - Prestress rubber support seat - Google Patents

Prestress rubber support seat Download PDF

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Publication number
CN201778394U
CN201778394U CN2010201392375U CN201020139237U CN201778394U CN 201778394 U CN201778394 U CN 201778394U CN 2010201392375 U CN2010201392375 U CN 2010201392375U CN 201020139237 U CN201020139237 U CN 201020139237U CN 201778394 U CN201778394 U CN 201778394U
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CN
China
Prior art keywords
steel plate
bearing
rubber
prestress
support seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010201392375U
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Chinese (zh)
Inventor
韩强
杜修力
刘文光
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Beijing University of Technology
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Beijing University of Technology
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Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN2010201392375U priority Critical patent/CN201778394U/en
Application granted granted Critical
Publication of CN201778394U publication Critical patent/CN201778394U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a prestress rubber support seat, which belongs to the field of structure shock isolation control. The prestress rubber support seat consists of an upper connecting steel plate, a lower connecting steel plate, an inner thin steel plate, an inner rubber layer, a prestress steel stranded wire and an anchor device, wherein the inner thin steel plate and the inner rubber layer are alternately overlapped, and the inner thin steel plate, the inner rubber layer and the outer rubber protective layer are vulcanized together with the upper connecting steel plate and the lower connecting steel plate under high temperature and high pressure, the prestress steel stranded wire are arranged insideand are connected with the upper connecting steel plate and the lower connecting steel plate through the anchor device. The prestress rubber support seat overcomes the defect of insufficient tensile intensity through high pressure and load resistance capability of the rubber support seat, the pressure prestress is exerted in advance before the support seat bears the load, the support seat is maintained at the pressed state or the small tensile stress state under the condition of seldom occurred earthquake, and the safety of the shock isolation structure can be ensured. The support seat has the advantages of simple structure and clear shock isolation mechanism, and is applicable to the shock isolation control of tall buildings, large-span bridges and other large-scale buildings with high shock resistance performance requirements.

Description

The prestress rubber bearing
Technical field
The utility model relates to structure shock isolating pedestal devices such as building, bridge, especially relates to a kind of prestress rubber bearing 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 ability of conventional neoprene bearing (laminated rubber bases, lead core rubber support and high-damping rubber bearing etc.), 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 high level, superelevation layer 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 of engineering structures is taken place.
The utility model content
The purpose of this utility model is at existing neoprene bearing ability, under the acting in conjunction of horizontal earthquake and vertical earthquake, neoprene bearing is prone to the tensile failure problem in high level, pyramidal structure and the Longspan Bridge isolation structure, provide a kind of prestress rubber bearing, to solve the problem of stretching of shock isolating pedestals such as highrise building, pyramidal structure and Longspan Bridge.
The technical solution of the utility model is as follows:
A kind of prestress rubber bearing; form by upper and lower connection steel plate, inner thin steel plate, inner rubber, prestress wire and ground tackle; it is characterized in that: described inner thin steel plate and inner rubber are superimposed to form overlapping layers; the upper and lower surface of overlapping layers is respectively arranged with upper and lower connection steel plate, and the overlapping layers periphery is enclosed with outside rubber cover.Inner thin steel plate, inner rubber, outside rubber cover sulfide the formation neoprene bearing with the upper and lower steel plate that is connected through high temperature, high pressure; neoprene bearing is provided with prestress wire, and the prestress wire two ends are anchored at the ground tackle in the upper and lower connection steel plate respectively.
Before bearing bears service load, this bearing is applied compressive stress in advance, thereby form the prestress rubber bearing.
Described prestress wire can be arranged in the bearing overlapping layers, vertically runs through overlapping layers, constitutes pre-stress type neoprene bearing in the bearing body.
Described prestress wire also can be arranged at outside the bearing overlapping layers, and prestress wire directly connects upper and lower connection steel plate, constitutes the outer pre-stress type neoprene bearing of bearing body.
Described upper and lower connection steel plate is provided with the connecting bolt hole, is used to connect bearing and structure.
Beneficial effect: prestress rubber bearing of the present utility model utilizes neoprene bearing resistance to compression bearing capacity to remedy scarce capacity 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, Longspan Bridge and other large-scale structure.
Description of drawings
Fig. 1 is the structural representation of prestress rubber bearing (pre-stress type in the bearing body);
Fig. 2 is the profile of prestress rubber bearing (pre-stress type in the bearing body);
Fig. 3 is the structural representation of prestress rubber bearing (the outer pre-stress type of bearing body);
Fig. 4 is the profile of prestress rubber bearing (the outer pre-stress type of bearing body).
Description of reference numerals:
1-connecting bolt hole; The 2-prestress wire; The 3-upper end connects steel plate; The 4-ground tackle; The outside rubber layer of 5-; The 6-inner rubber; 7-inner thin steel plate; The 8-lower end connects steel plate.
The specific embodiment
The prestress rubber bearing has two kinds to execute mode, and a kind of is pre-stress type neoprene bearing in the bearing body, as depicted in figs. 1 and 2; A kind of is the outer pre-stress type neoprene bearing of bearing body, as shown in Figure 3 and Figure 4.
Embodiment 1
Now this discovery is described further in conjunction with pre-stress type neoprene bearing in the bearing body.
Fig. 1 is a pre-stress type neoprene bearing structural representation in the bearing body, and Fig. 2 is a pre-stress type neoprene bearing profile in the bearing body.This bearing is made up of upper and lower connection steel plate 3 and 8, inner rubber 6, inner thin steel plate 7, prestress wire 2 and ground tackle 4; inner rubber 6 is superimposed to form overlapping layers with inner thin steel plate 7; the upper and lower surface of overlapping layers is respectively arranged with upper and lower connection steel plate 3 and 8, and the overlapping layers periphery is enclosed with outside rubber cover 5.Inner rubber 6, inner thin steel plate 7, outside rubber cover 5 are to sulfide the formation neoprene bearing through high temperature, high pressure with the upper and lower steel plate 3 and 8 that is connected; neoprene bearing is provided with prestress wire 2, and prestress wire 2 two ends connect respectively on the ground tackle 4 that is anchored in the upper and lower connection steel plate 3,8.Wherein, prestress wire 2 is arranged in the bearing overlapping layers, vertically runs through overlapping layers, constitutes pre-stress type 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 3,8 that is connected by ground tackle 4.
Embodiment 2
Now the utility model is described in further detail in conjunction with the outer formula prestress rubber bearing of bearing body.
Fig. 3 is the outer pre-stress type neoprene bearing structural representation of bearing body, and Fig. 4 is the outer pre-stress type neoprene bearing profile of bearing body.This bearing is made up of upper and lower connection steel plate 3 and 8, inner rubber 6, inner thin steel plate 7, prestress wire 2 and ground tackle 4; inner rubber 6 is superimposed to form overlapping layers with inner thin steel plate 7; the upper and lower surface of overlapping layers is respectively arranged with upper and lower connection steel plate 3 and 8, and the overlapping layers periphery is enclosed with outside rubber cover 5.Inner rubber 6, inner thin steel plate 7, outside rubber cover 5 sulfide the formation neoprene bearing with the upper and lower steel plate 3 and 8 that is connected through high temperature, high pressure; neoprene bearing is provided with prestress wire 2, and prestress wire 2 two ends connect respectively on the ground tackle 4 that is anchored in upper and lower connection steel plate 3 and 8.Wherein, prestress wire 2 is arranged at outside the bearing overlapping layers, and prestress wire 2 directly connects upper and lower connection steel plate 3 and 8, constitutes the outer pre-stress type neoprene bearing of bearing body.Before bearing bears service load, this bearing is applied compressive stress in advance, and be connected with 8 with the upper and lower steel plate 3 that is connected by ground tackle 4.
Prestress rubber bearing of the present utility model can utilize neoprene bearing resistance to compression bearing capacity to remedy scarce capacity 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, Longspan Bridge and other large-scale structure, has extensive popularizing value.

Claims (3)

1. prestress rubber bearing; by last; under connect steel plate (3; 8); inner rubber (6); inner thin steel plate (7); prestress wire (2) and ground tackle (4) are formed; it is characterized in that: described inner rubber (6) is superimposed to form overlapping layers with inner thin steel plate (7); on the overlapping layers; soffit is respectively arranged with; under connect steel plate (3; 8); the overlapping layers periphery is enclosed with outside rubber cover (5); inner rubber (6); inner thin steel plate (7); outside rubber cover (5) is with last; under connect steel plate (3; 8) be through high temperature; high pressure sulfides the formation neoprene bearing; neoprene bearing is provided with prestress wire (2); prestress wire (2) two ends connect respectively and are anchored at; under connect steel plate (3; 8) on Nei the ground tackle (4), described on; under connect steel plate (3; 8) be provided with connecting bolt hole (1).
2. prestress rubber bearing according to claim 1 is characterized in that: described prestress wire (2) is arranged in the bearing overlapping layers, vertically runs through overlapping layers, constitutes pre-stress type neoprene bearing in the bearing body.
3. prestress rubber bearing according to claim 1, it is characterized in that: described prestress wire (2) is arranged at outside the bearing overlapping layers, prestress wire (2) directly connects on the ground tackle (4) of upper and lower connection steel plate (3,8), constitutes the outer pre-stress type neoprene bearing of bearing body.
CN2010201392375U 2010-03-22 2010-03-22 Prestress rubber support seat Expired - Fee Related CN201778394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201392375U CN201778394U (en) 2010-03-22 2010-03-22 Prestress rubber support seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201392375U CN201778394U (en) 2010-03-22 2010-03-22 Prestress rubber support seat

Publications (1)

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CN201778394U true CN201778394U (en) 2011-03-30

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619283A (en) * 2012-04-17 2012-08-01 吕西林 Lead core laminated rubber support seat capable of bearing tensile force
CN102644468A (en) * 2012-03-27 2012-08-22 北京工业大学 Damping device used for crossover parts of underground short-distance crossing structures
CN102926573A (en) * 2012-11-20 2013-02-13 重庆大学 Automatic restoring quake-proof silo
CN102953452A (en) * 2012-10-26 2013-03-06 上海昭瑞减震科技有限公司 Self-resetting combined shock isolation device with high vertical bearing capacity
CN103015554A (en) * 2012-12-08 2013-04-03 北京工业大学 Three-dimensional seismic isolation device for being closely attached to cross part of subway
CN103572854A (en) * 2012-07-31 2014-02-12 上海宝冶集团有限公司 Self-resetting metal shearing damper
CN104032671A (en) * 2014-06-17 2014-09-10 同济大学 High-damp rubber supporting seat compositing high-strength fine steel wire mesh with reinforced steel fibers
CN105155408A (en) * 2015-04-25 2015-12-16 清华大学 Bridge anti-overturning support and construction method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102644468A (en) * 2012-03-27 2012-08-22 北京工业大学 Damping device used for crossover parts of underground short-distance crossing structures
CN102619283A (en) * 2012-04-17 2012-08-01 吕西林 Lead core laminated rubber support seat capable of bearing tensile force
CN103572854A (en) * 2012-07-31 2014-02-12 上海宝冶集团有限公司 Self-resetting metal shearing damper
CN102953452B (en) * 2012-10-26 2015-07-29 上海昭瑞减震科技有限公司 The combined earthquake isolating equipment of the Self-resetting that a kind of vertical bearing capacity is high
CN102953452A (en) * 2012-10-26 2013-03-06 上海昭瑞减震科技有限公司 Self-resetting combined shock isolation device with high vertical bearing capacity
CN102926573B (en) * 2012-11-20 2014-08-06 重庆大学 Automatic restoring quake-proof silo
CN102926573A (en) * 2012-11-20 2013-02-13 重庆大学 Automatic restoring quake-proof silo
CN103015554A (en) * 2012-12-08 2013-04-03 北京工业大学 Three-dimensional seismic isolation device for being closely attached to cross part of subway
CN104032671A (en) * 2014-06-17 2014-09-10 同济大学 High-damp rubber supporting seat compositing high-strength fine steel wire mesh with reinforced steel fibers
CN104032671B (en) * 2014-06-17 2016-08-24 同济大学 High-strength fine and closely woven steel wire steel fibre of putting more energy into is combined high-damp rubber support
CN105155408A (en) * 2015-04-25 2015-12-16 清华大学 Bridge anti-overturning support and construction method thereof

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110330

Termination date: 20130322

C17 Cessation of patent right