CN102493330A - Bridge three-way limit device and bridge three-way limit vibration reduction structure - Google Patents
Bridge three-way limit device and bridge three-way limit vibration reduction structure Download PDFInfo
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- CN102493330A CN102493330A CN2011104142192A CN201110414219A CN102493330A CN 102493330 A CN102493330 A CN 102493330A CN 2011104142192 A CN2011104142192 A CN 2011104142192A CN 201110414219 A CN201110414219 A CN 201110414219A CN 102493330 A CN102493330 A CN 102493330A
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Abstract
The invention discloses a bridge three-way limit device and a bridge three-way limit vibration reduction structure which have the limit and buffering effects on vertical, longitudinal and horizontal displacement of a beam body and can effectively reduce the damage of earthquake to a bridge structure. The bridge three-way limit device comprises a foundation, and an inverse-L-shaped rigid clamp falcon which consists of a steel vertical limb and a horizontal limb; the lower end of the vertical limb is integrally and fixedly connected with the foundation; and the upper end of the vertical limb and the front end of the horizontal limb are provided with a vertical limb ball and a horizontal limb ball respectively. The foundation is fixedly arranged on the top of a pier body; a limit groove which extends in the vertical direction is formed in the end of the beam body; and a steel sleeve which extends backwards from the bottom wall of the limit groove in the longitudinal direction is pre-embedded in the bottom of the beam body. The horizontal limb is extended into the steel sleeve, and the vertical limb ball is positioned in the limit groove. A longitudinal gap which can meet the requirement of normal longitudinal displacement when the beam body is used is reserved between the horizontal limb ball and the bottom of the steel sleeve; and a horizontal gap which can meet the requirement of normal horizontal displacement when the beam body is used is reserved between the vertical limb ball and the wall of the limit groove.
Description
Technical field
The present invention relates to bridge, particularly a kind ofly limit bridge vertically, laterally and the three-dimensional stopping means of vertical displacement, and the spacing vibration control structure of bridge three-dimensional that adopts this device.
Background technology
For many years earthquake disaster shows that along with development of urbanization, transportation network is more and more important in the entire city antidetonation is taken precautions against natural calamities life line system in the world wide.Tangshan earthquake in 1976, U.S. Bei Ling (Northrige) in 1994 earthquake, nineteen ninety-five Japan's slope shake celestially, U.S. Sheng Feinanduo (San Fernado) earthquake in 1997 and Taiwan Ji Ji earthquake in 1999 cause serious destruction all for the transportation network of locality; The massive losses that causes lives and properties, and wherein bridge is the most outstanding earthquake form to the beam that falls in length and breadth.
At present, the Bridges in Our Country seismic design mainly is to stress the intensity of pier body, and the pier body is not collapsed in earthquake.The anti-fall beam construction of being adopted mainly is on the pier body, to fixedly install beam falling prevention stopping block, is controlled in certain scope with length travel amount and lateral displacement amount with the beam body.But, get in touch owing to lack between beam body and pier body, beam body and the beam body, when the higher earthquake of earthquake intensity is attacked, the impact that acutely rocked by the beam body, beam falling prevention stopping block is prone to shear failure takes place and lost efficacy, and produces beam and destroys.In " 5.12 " Wenchuan violent earthquake; The most bridges in earthquake region have all received destruction; And intact basically such as " all sorts of flowers bridge " this pier body, because the beam that falls causes the example of bridge collapse too numerous to enumerate, become the principal element of bridge collapse in the earthquake, caused the common concern of bridge circle.Along with developing rapidly of China's transport development cause, bridge quantitatively still is all in quick growth on the development length as the multi-purpose project in the traffic lines.And China is an earthquake pilosity country; Bridge will make whole transportation network paralyse in case the beam that in earthquake, falls destroys; The serious obstruction rescued and rebuilding in disaster-hit areas, therefore in bridge damping design, obtained application at the spacing damping device of bridge three-dimensional in recent years.
The spacing vibration control structure of existing bridge three-dimensional mainly contains following three kinds of forms, i.e. chain vertical spacing device cooperation cooperates in length and breadth to beam falling prevention stopping block, anchoring rod iron vertical spacing device in length and breadth and cooperates in length and breadth to anti-fall beam dress to beam falling prevention stopping block, prestressed strand vertical spacing device.These three kinds of forms all are to fixedly install vertical beam falling prevention stopping block and horizontal beam falling prevention stopping block at Liang Tishang; Match with the length travel of restained beam body, lateral displacement with the bearing pad stone on pier body top, vertically the normal length travel amount of beam body is satisfied in the gap of beam falling prevention stopping block and bearing pad stone.Vertical spacing then adopts chain, anchoring rod iron or the prestressed strand be arranged between pier body, the beam body to realize respectively.These three kinds of forms because vertical spacing, vertically, the cross spacing device is separated, so complex structure, and existence is disturbed deficiency big and that installation is loaded down with trivial details, cost is high with beam body reinforcing bar and prestressed strand.Except that the chain type vertical spacing has certain damping effect because of being provided with elastic rubbery body, anchoring rod iron or prestressed strand vertical spacing all do not have cushioning effect.
Summary of the invention
One of technical problem to be solved by this invention provides the spacing damping device of a kind of bridge three-dimensional, plays spacing simultaneously and the buffering effect to vertical, the vertical and horizontal displacement energy of beam body, and simple in structure, compact, is convenient to install.The present invention solves this technical problem the technical scheme that is adopted: bridge three-dimensional stopping means of the present invention; It is characterized in that: it comprises base and is down L shaped rigidity card falcon by what the perpendicular limb of steel, horizontal limb constituted; Perpendicular limb lower end and base are connected to one, and the upper end of perpendicular limb, the front end of horizontal limb have perpendicular limb bulb, horizontal limb bulb respectively.
Another technical problem to be solved by this invention provides a kind of spacing vibration control structure of bridge three-dimensional that adopts above-mentioned bridge three-dimensional stopping means, can alleviate the destruction of earthquake to bridge construction effectively.The present invention solves this technical problem the technical scheme that is adopted: it comprises the pier body and passes through the beam body of bearing support on two bearing pad stones of pier body top; It is characterized in that: said base is fixedly set in pier body top; The beam end of body offers the stopper slot of vertical extension, and beam body bottom is embedded with by the stopper slot diapire steel bushing of longitudinal extension backward; Horizontal limb stretches in the steel bushing, and perpendicular limb bulb is positioned at stopper slot; The axial clearance that normal length travel amount required when the use of beam body was satisfied in existence between at the bottom of horizontal limb bulb and the steel bushing tube, the lateral clearance of normal lateral displacement amount requirement when the use of beam body is satisfied in existence between perpendicular limb bulb and the stopper slot cell wall.
The invention has the beneficial effects as follows, be integrated three-dimensional is spacing, play spacing simultaneously and the buffering effect vertical, the vertical and horizontal displacement energy of beam body; Simple in structure, compact, reduce steel using amount, and be convenient to install; Rigidity card falcon is made by the high-quality steel, and its horizontal limb, vertical limb all have elastic deformability preferably, can alleviate the destruction of earthquake to bridge construction effectively.
Description of drawings
This manual comprises following three width of cloth accompanying drawings:
Fig. 1 is the sketch map of bridge three-dimensional stopping means of the present invention and the spacing vibration control structure of bridge three-dimensional;
Fig. 2 is the structural representation of the spacing damping device of bridge three-dimensional of the present invention;
Fig. 3 is the sketch map of bridge three-dimensional stopping means of the present invention and the spacing vibration control structure of bridge three-dimensional.
Component, toponym and pairing mark among the figure: beam body 10, stopper slot 11, steel bushing 12, pier body 20, bearing pad stone 21, bearing pad stone 22, base 30, perpendicular limb 31, perpendicular limb bulb 31a, horizontal limb 32, horizontal limb bulb 32a, anchor bolts assemblies 33.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
With reference to Fig. 2; Bridge three-dimensional stopping means of the present invention; Comprise base 30 and be down L shaped rigidity card falcon by what the perpendicular limb 31 of steel, horizontal limb 32 constituted; Perpendicular limb 31 lower ends and base 30 are connected to one, and the upper end of perpendicular limb 31, the front end of horizontal limb 32 have perpendicular limb bulb 31a, horizontal limb bulb 32a respectively.This device is integrated three-dimensional is spacing, plays spacing simultaneously and the buffering effect to vertical, the vertical and horizontal displacement energy of beam body.
With reference to Fig. 1 and Fig. 3, the spacing vibration control structure of bridge three-dimensional of the present invention comprises pier body 20 and passes through the beam body 10 of bearing support on two bearing pad stones 21,22 of pier body 20 tops.The base 30 of above-mentioned bridge three-dimensional stopping means is fixedly set in pier body 20 tops, offers the stopper slot 11 of vertical extension in beam body 10 ends, and beam body 10 bottoms are embedded with by the stopper slot 11 diapires steel bushing 12 of longitudinal extension backward.After bridge erection is good, the horizontal limb 32 of rigidity card falcon is pushed in the steel bushing 12, and make perpendicular limb bulb 31a be positioned at stopper slot 11.There is the axial clearance that normal length travel amount requires when satisfying the beam body and using between at the bottom of 12 of horizontal limb bulb 32a and the steel bushings, has the lateral clearance of normal lateral displacement amount requirement when satisfying the beam body and using between perpendicular limb bulb 31a and stopper slot 11 cell walls.Usually, said base 30 is fixedly connected with pier body 20 in two bearing pad stones 21, anchor bolts assemblies 33 between 22 through pre-buried.Because perpendicular limb 31, horizontal limb 32 all have elastic deformability preferably, can alleviate the destruction of ground earthquake effectively to bridge construction.
Some principles of the above just explain through diagrams bridge three-dimensional stopping means of the present invention and the spacing vibration control structure of bridge three-dimensional; Be not be to the present invention be confined to shown in described concrete structure and the scope of application in; So every the modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (3)
1. bridge three-dimensional stopping means; It is characterized in that: it comprises base (30) and is down L shaped rigidity card falcon by what the perpendicular limb (31) of steel, horizontal limb (32) constituted; Perpendicular limb (31) lower end and base (30) are connected to one, and the upper end of perpendicular limb (31), the front end of horizontal limb (32) have perpendicular limb bulb (31a), horizontal limb bulb (32a) respectively.
2. adopt the spacing vibration control structure of bridge three-dimensional of bridge three-dimensional stopping means according to claim 1; Comprise pier body (20) and pass through the beam body (10) of bearing support on pier body (20) top two bearing pad stones (21,22); It is characterized in that: said base (30) is fixedly set in pier body (20) top; Offer the stopper slot (11) of vertical extension in beam body (10) end, beam body (10) bottom is embedded with by stopper slot (11) the diapire steel bushing of longitudinal extension (12) backward; Horizontal limb (32) stretches in the steel bushing (12), and perpendicular limb bulb (31a) is positioned at stopper slot (11); There is the axial clearance that normal length travel amount requires when satisfying the beam body and using in horizontal limb bulb (32a) and steel bushing (12) tube, and has the lateral clearance of normal lateral displacement amount requirement when satisfying the beam body and using between perpendicular limb bulb (31a) and stopper slot (11) cell wall at the end.
3. the spacing vibration control structure of bridge three-dimensional as claimed in claim 2 is characterized in that: said base (30) is fixedly connected with pier body (20) through pre-buried anchor bolts assemblies (33) between two bearing pad stones (21,22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414219.2A CN102493330B (en) | 2011-12-13 | 2011-12-13 | Bridge three-way limit device and bridge three-way limit vibration reduction structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110414219.2A CN102493330B (en) | 2011-12-13 | 2011-12-13 | Bridge three-way limit device and bridge three-way limit vibration reduction structure |
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| CN102493330A true CN102493330A (en) | 2012-06-13 |
| CN102493330B CN102493330B (en) | 2015-05-27 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN104233958A (en) * | 2014-08-27 | 2014-12-24 | 中铁大桥勘测设计院集团有限公司 | Construction method of beam end horizontal linkage device of ballastless track multi-line steel bridge |
| CN104652252A (en) * | 2015-02-12 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Bridge damping blocking tenon device |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN108505434A (en) * | 2018-05-02 | 2018-09-07 | 福建工程学院 | A kind of seamless curved bridge using semi-rigid Integral Abutment |
| CN109137724A (en) * | 2018-10-23 | 2019-01-04 | 苏州同尚工程设计咨询有限公司 | A kind of support construction of the antidetonation on overpass |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
| CN111501530A (en) * | 2020-05-20 | 2020-08-07 | 中国地震局工程力学研究所 | Vibration-damping locking type device for preventing box girder from falling |
| CN112227235A (en) * | 2020-11-13 | 2021-01-15 | 重庆交通大学 | Bridge is consolidated and is prevented roof beam body structure that falls |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN112575674A (en) * | 2020-12-16 | 2021-03-30 | 石家庄铁道大学 | Combined multistage three-dimensional anti-seismic bridge limiting device based on BRB technology |
| CN113123216A (en) * | 2021-04-14 | 2021-07-16 | 河北中通铁路配件有限公司 | Mechanical anti-loosening and anti-falling beam stop block convenient to adjust |
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| KR100823347B1 (en) * | 2007-12-28 | 2008-04-17 | 하진영 | A vibration reduce type expansion joint structure with drain box |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN104233958A (en) * | 2014-08-27 | 2014-12-24 | 中铁大桥勘测设计院集团有限公司 | Construction method of beam end horizontal linkage device of ballastless track multi-line steel bridge |
| CN104233958B (en) * | 2014-08-27 | 2016-05-25 | 中铁大桥勘测设计院集团有限公司 | The construction method of the beam-ends transverse linkage device of the multi-thread steel bridge of non-fragment orbit |
| CN104652252A (en) * | 2015-02-12 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Bridge damping blocking tenon device |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN108505434A (en) * | 2018-05-02 | 2018-09-07 | 福建工程学院 | A kind of seamless curved bridge using semi-rigid Integral Abutment |
| CN108505434B (en) * | 2018-05-02 | 2023-11-21 | 福建工程学院 | Seamless curved bridge adopting semi-rigid integral bridge abutment |
| CN109137724A (en) * | 2018-10-23 | 2019-01-04 | 苏州同尚工程设计咨询有限公司 | A kind of support construction of the antidetonation on overpass |
| CN109610301B (en) * | 2019-01-29 | 2023-08-04 | 中铁二院工程集团有限责任公司 | Damping energy consumption three-way limiting metal damping device for near-fault bridge and installation method |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
| CN111501530A (en) * | 2020-05-20 | 2020-08-07 | 中国地震局工程力学研究所 | Vibration-damping locking type device for preventing box girder from falling |
| CN112227235B (en) * | 2020-11-13 | 2022-02-22 | 重庆交通大学 | Bridge is consolidated and is prevented roof beam body structure that falls |
| CN112227235A (en) * | 2020-11-13 | 2021-01-15 | 重庆交通大学 | Bridge is consolidated and is prevented roof beam body structure that falls |
| CN112575674A (en) * | 2020-12-16 | 2021-03-30 | 石家庄铁道大学 | Combined multistage three-dimensional anti-seismic bridge limiting device based on BRB technology |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN113123216A (en) * | 2021-04-14 | 2021-07-16 | 河北中通铁路配件有限公司 | Mechanical anti-loosening and anti-falling beam stop block convenient to adjust |
| CN113123216B (en) * | 2021-04-14 | 2022-05-20 | 河北中通铁路配件有限公司 | Mechanical anti-loosening and anti-falling beam stop block convenient to adjust |
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| CN102493330B (en) | 2015-05-27 |
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