CN204162991U - Combined anti-fall girder apparatus - Google Patents

Combined anti-fall girder apparatus Download PDF

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Publication number
CN204162991U
CN204162991U CN201420365523.1U CN201420365523U CN204162991U CN 204162991 U CN204162991 U CN 204162991U CN 201420365523 U CN201420365523 U CN 201420365523U CN 204162991 U CN204162991 U CN 204162991U
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CN
China
Prior art keywords
stopping
coupling
pier
rod iron
yielding rubber
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Expired - Fee Related
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CN201420365523.1U
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Chinese (zh)
Inventor
易莉帮
李建中
项乃亮
黄永福
罗致
严搏
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Tongji University
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Tongji University
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Priority to CN201420365523.1U priority Critical patent/CN204162991U/en
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Publication of CN204162991U publication Critical patent/CN204162991U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model belongs to civil engineering, earthquake engineering technical field.A kind of combination type locating device, comprise the stopping means be arranged between beam body and transition pier, this stopping means comprises longitudinal block and the stopping means yielding rubber of Liang Tishang; Stopping means yielding rubber is arranged in the gap of longitudinal block and bridge pier, and stopping means yielding rubber is connected on longitudinal block.Comprise again the coupling beam device being arranged on adjacent beam-ends, this coupling beam device comprises and connects rod iron, anchoring nut, billet, coupling beam device yielding rubber, steel sleeve; Described connection rod iron and the direct anchoring of a curb girder body end floor beam, connect rod iron and be outside equipped with steel sleeve, and be coated with sliding agent inside tube wall, enable connection rod iron free-extension in steel sleeve in another curb girder body end floor beam.The utility model is applicable to the higher bridge of transition pier pier, can not affect under the prerequisite that bridge normally uses, and effectively reduces pier beam relative displacement under severe earthquake action, reaches the object preventing beam body from coming off.

Description

Combined anti-fall girder apparatus
Art
The utility model belongs to civil engineering, earthquake engineering technical field, be specifically related to a kind ofly integrate bridge construction longitudinal combined-type anti-fall girder apparatus that is spacing and coupling beam function, bridge construction anti-fall girder apparatus refers to the device preventing from bridge construction from beam body occurring under geological process falling or throw off.
Background technology
As can be seen from all previous strong ruinous earthquake disaster, the phenomenon that bridge superstructure self damages because of direct earthquake motive force effect is extremely rare, but the beam that falls caused because of supporting shelving length deficiency, supporting connecting piece inefficacy etc., the phenomenon such as movement, distortion, crack of girder often have generation, and its decline beam phenomenon is very serious.Current domestic conventional anti-fall girder apparatus mainly contains stopping means and coupling beam device, is respectively used to restraint beam body, bridge pier relative displacement and the relative displacement of adjacent binding beam end.Typical stopping means has cable stopping means (see Fig. 1), barrier type stopping means (see Fig. 2) etc.; Typical case's coupling beam device has prestressed steel bar coupling beam device (see Fig. 3).
Practical experience shows: adopt cable stopping means can obtain good limit effect, but require that long enough wanted by cable, just can possess sufficient deformability to play girder falling function, it is very complicated that this just makes this device construct, be unfavorable for construction, constructional appearance is also had a certain impact simultaneously, apply less in China's Practical Project; Simple barrier type stopping means is only applicable to the situation of transition pier pier height shorter (namely transition pier rigidity is larger), uprises once transition pier pier is high, and when bridge pier is more soft, because transition pier under geological process distortion itself is comparatively large, its limit effect is unsatisfactory; Coupling beam device is then mainly used in limiting adjacent binding beam body generation over-large displacement, its design object allows beam body to take off seat but the beam that do not fall, after violent earthquake central sill body takes off seat, got up by the suspention of coupling beam device, until repair, then not obvious to the constraint of pier beam relative displacement, in addition, when the adjacent basic cycle is more or less the same, under geological process, adjacent mainly generation is vibrated in the same way, and the effect of coupling beam device is also not obvious.Therefore, for the bridge that transition pier pier is higher, all there is respective deficiency in above anti-fall girder apparatus, and this just needs to take more reasonably seismic measures, prevents the generation of severe earthquake action whereabouts beam accident.
Summary of the invention
In order to overcome the stopping means that adopts now and coupling beam device for the deficiency in the more soft bridge girder falling effect of transition pier, the utility model proposes and a kind ofly possess combined anti-fall girder apparatus that is spacing and coupling beam function simultaneously.
Principle: arrange longitudinal block 4 on beam body 2, carrys out the relative displacement between restraint beam body and bridge pier by the interaction of block 4 and transition pier 1, arranges rubber pad 5 simultaneously, the collision effect of buffering block 4 and transition pier 1; Install at adjacent two bridge ends and connect rod irons 6, limit adjacent beam-ends relative displacement, transmit adjacent binding beam body inertia force, rubber pad 9 is for cushioning the collision effect between beam-ends and coupling beam device and adjacent beam-ends.
Accordingly, the utility model provides technical scheme and is:
A kind of combination type locating device, is characterized in that,
Comprise the stopping means be arranged between beam body and transition pier, this stopping means comprises longitudinal block 4 and the stopping means yielding rubber 5 of Liang Tishang; Stopping means yielding rubber 5 is arranged at longitudinal block 4 with in the gap of bridge pier 1, and stopping means yielding rubber 5 is connected on longitudinal block 4.
Comprise again the coupling beam device being arranged on adjacent beam-ends, this coupling beam device comprises and connects rod iron 6, anchoring nut 7, billet 8, coupling beam device yielding rubber 9, steel sleeve 10.One end of described connection rod iron 6 is by billet 8 and the direct anchoring of a curb girder body end floor beam, and its other end penetrates another curb girder body end floor beam and axially leaves mobilizable gap, and movable end is spacing by anchoring nut 7; In another curb girder body end floor beam, connect rod iron 6 be outside equipped with steel sleeve 10, and be coated with sliding agent inside tube wall, make connection rod iron 6 can in steel sleeve 10 free-extension; Connect rod iron 6 and be also provided with two coupling beam device yielding rubbers 9, be arranged at respectively in the gap between adjacent beam-ends and in the movable gap axially left.
Described longitudinal block 4 can adopt concrete or steel material, and specific design parameter adopts according to seismic design.
The steel type that described connection rod iron 6, anchoring nut 7 and billet 8 adopt and processing technology, adopt according to Seismic Design Requirements.
All leave certain interval between described block 4 and transition pier 1, adjacent beam-ends, to meet the displacement demand under the temperature load in static design stage and Impact Load, premised on ensureing that not affecting bridge normally uses, play the girder falling function under severe earthquake action.
The technical scheme advantage that the utility model provides:
1) practical, be applicable to the bridge construction that transition pier pier is higher; Under geological process, the co-operation of stopping means and coupling beam device, plays own characteristic separately, even if transition pier distortion itself is larger, also can relative displacement between operative constraint beam body and transition pier, reach the object preventing beam body from coming off, compensate for the deficiency of simple barrier type stopping means.
2) reasonable distribution beam body inertia force, due to the effect of coupling beam device, makes beam body inertia force be transmitted between adjacent, can more rational distribution beam body inertia force under certain design parameters, plays advantageous effect to the anti-seismic performance of structure itself.
3) simple structure, easy construction, adopts existing construction technology can complete whole technological merits of this novel practical.
In a word, the utility model is applicable to the higher bridge of transition pier pier, can not affect under the prerequisite that bridge normally uses, and effectively reduces pier beam relative displacement under severe earthquake action, reaches the object preventing beam body from coming off.
Accompanying drawing explanation
Fig. 1 is cable limit device structure schematic diagram.
Fig. 2 is barrier type limit device structure schematic diagram.
Fig. 3 is prestressed steel bar coupling beam apparatus structure schematic diagram.
Fig. 4 is schematic diagram of the present utility model.
1. transition pier in figure, 2. beam body, 3. bearing, 4. longitudinal block, 5. stopping means yielding rubber, 6. connect rod iron, 7. anchoring nut, 8. billet, 9. coupling beam device yielding rubber, 10. steel sleeve, 11. beam-ends crossbeams.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 4:
Bottom beam body 2, arrange longitudinal block 4, block 4 is built or is adopted anchor bolt to connect after beam body 2 has been built together with beam body 2; Block 4 with the impingement area of transition pier 1 paste rubber pad 5, is formed longitudinal limiting device with upper-part.
Adjacent binding beam end adopts rod iron 6 to connect, rod iron 6 and the direct anchoring of a curb girder body end floor beam, and this side rod iron 6 is through billet 8, and end adopts anchoring nut 7 to carry out anchoring; In another curb girder body end floor beam, steel sleeve 10 is set, rod iron 6 passes from steel sleeve 10, and is coated with sliding agent inside tube wall, enables rod iron free-extension in pipe, this side rod iron 6 is through yielding rubber 9 and billet 8, and end adopts anchoring nut 7 to carry out anchoring; Adjacent binding beam end impingement area pastes rubber pad 9, and rod iron 6 extends there through, and connects adjacent binding beam body, is formed coupling beam device with upper-part.
Stopping means is set between transition pier and beam body, the relative displacement of restriction beam-ends and bridge pier; Coupling beam device is set at adjacent binding beam end, transfer beams body inertia force, limits adjacent beam-ends relative displacement.Be applicable to the bridge construction that transition pier pier is higher, under geological process, stopping means and coupling beam device co-operation, respective performance own characteristic, even if transition pier distortion itself is comparatively large, also can the relative displacement of operative constraint beam body and transition pier, reach the object preventing beam body from coming off; Meanwhile, beam body inertia force is transmitted between adjacent, can more rational distribution beam body inertia force under certain design parameters, plays advantageous effect to the anti-seismic performance of structure itself.
The utility model is bridge engineering longitudinal combined-type anti-fall girder apparatus, has the function of restriction pier beam relative displacement and the relative displacement of adjacent beams beam-ends.Barrier type stopping means is set between transition pier and beam body, comprises longitudinal block 4 of Liang Tishang, stopping means yielding rubber 5; Coupling beam device is set at adjacent binding beam end, comprises and connect rod iron 6, anchoring nut 7, billet 8, coupling beam device yielding rubber 9 and steel sleeve 10.Not affecting under the prerequisite that bridge normally uses, when coming earthquake, the co-operation of stopping means and coupling beam device, respective performance own characteristic, even if transition pier distortion itself is comparatively large, also can the relative displacement of operative constraint beam body and transition pier, reach the object preventing girder from coming off.
Between transition pier and beam body, arrange barrier type stopping means, the relative displacement of restriction pier beam, and arrange rubber pad on block, buffering block is to the percussion of bridge pier.Barrier type stopping means is not limited to one that accompanying drawing is painted is described, block material can adopt concrete or steel, and this kind of anti-fall girder apparatus of other barrier type limit configurations of any employing all should within the scope of this rights protection.
Coupling beam device is set at adjacent binding beam end, transfer beams body inertia force, limits the relative displacement of adjacent binding beam end, and at beam-ends and arrange rubber pad, the collision effect between buffering beam-ends and coupling beam device and adjacent beam-ends.The connected mode of coupling beam device is not limited to one that accompanying drawing is painted is described, this kind of anti-fall girder apparatus of any other types of attachment of employing all should within the scope of this rights protection.

Claims (1)

1. a combined anti-fall girder apparatus, is characterized in that,
Comprise the stopping means be arranged between beam body and transition pier, this stopping means comprises longitudinal block (4) and the stopping means yielding rubber (5) of Liang Tishang; Stopping means yielding rubber (5) is arranged at longitudinal block (4) with in the gap of bridge pier (1), and stopping means yielding rubber (5) is connected on longitudinal block (4);
Comprise again the coupling beam device being arranged on adjacent beam-ends, this coupling beam device comprises and connects rod iron (6), anchoring nut (7), billet (8), coupling beam device yielding rubber (9), steel sleeve (10); One end of described connection rod iron (6) is by billet (8) and the direct anchoring of a curb girder body end floor beam, its other end penetrates another curb girder body end floor beam and axially leaves mobilizable gap, and movable end is spacing by anchoring nut (7); In another curb girder body end floor beam, connect rod iron (6) be outside equipped with steel sleeve (10), and be coated with sliding agent inside tube wall, make connection rod iron (6) can in steel sleeve (10) free-extension; Connect rod iron (6) and be also provided with two coupling beam device yielding rubbers (9), be arranged at respectively in the gap between adjacent beam-ends and in the movable gap axially left.
CN201420365523.1U 2014-07-03 2014-07-03 Combined anti-fall girder apparatus Expired - Fee Related CN204162991U (en)

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Application Number Priority Date Filing Date Title
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963278A (en) * 2015-07-15 2015-10-07 浙江省交通规划设计研究院 Pier top displacement spring limiter for high-pier bridge
CN105421219A (en) * 2015-12-09 2016-03-23 中国铁道科学研究院铁道建筑研究所 U-shaped damping beam falling preventing device
CN105625163A (en) * 2016-01-08 2016-06-01 苏交科集团股份有限公司 Beam falling prevention device
CN106049253A (en) * 2016-05-11 2016-10-26 清华大学 Longitudinal connecting structure for preventing reinforced concrete simply-supported beam bridge from falling and construction method of longitudinal connecting structure
CN106284104A (en) * 2016-08-12 2017-01-04 清华大学 A kind of reinforcement means preventing existed concrete bridge beam bridge end from longitudinally coming off
CN106351114A (en) * 2016-09-26 2017-01-25 石家庄铁道大学 Multi-level anti-seismic device capable of preventing bridge from colliding and falling
CN106567325A (en) * 2016-11-14 2017-04-19 西南交通大学 Combined type anti-falling beam and collision device
CN106758778A (en) * 2017-01-22 2017-05-31 重庆交通大学 The scalable anti-fall beam construction progressively consumed energy
CN106930180A (en) * 2017-03-10 2017-07-07 中国市政工程中南设计研究总院有限公司 A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally coming off
CN107034779A (en) * 2017-03-27 2017-08-11 东南大学 The girder falling bracing means of beam bridge drop in beam section
CN109653082A (en) * 2019-01-18 2019-04-19 盛年科技有限公司 A kind of two-way function divergence type shock mitigation system

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104963278A (en) * 2015-07-15 2015-10-07 浙江省交通规划设计研究院 Pier top displacement spring limiter for high-pier bridge
CN105421219A (en) * 2015-12-09 2016-03-23 中国铁道科学研究院铁道建筑研究所 U-shaped damping beam falling preventing device
CN105625163A (en) * 2016-01-08 2016-06-01 苏交科集团股份有限公司 Beam falling prevention device
CN106049253A (en) * 2016-05-11 2016-10-26 清华大学 Longitudinal connecting structure for preventing reinforced concrete simply-supported beam bridge from falling and construction method of longitudinal connecting structure
CN106284104A (en) * 2016-08-12 2017-01-04 清华大学 A kind of reinforcement means preventing existed concrete bridge beam bridge end from longitudinally coming off
CN106351114A (en) * 2016-09-26 2017-01-25 石家庄铁道大学 Multi-level anti-seismic device capable of preventing bridge from colliding and falling
CN106567325A (en) * 2016-11-14 2017-04-19 西南交通大学 Combined type anti-falling beam and collision device
CN106758778B (en) * 2017-01-22 2018-06-12 重庆交通大学 The scalable anti-fall beam construction gradually consumed energy
CN106758778A (en) * 2017-01-22 2017-05-31 重庆交通大学 The scalable anti-fall beam construction progressively consumed energy
CN106930180A (en) * 2017-03-10 2017-07-07 中国市政工程中南设计研究总院有限公司 A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally coming off
CN106930180B (en) * 2017-03-10 2018-08-24 中国市政工程中南设计研究总院有限公司 A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off
CN107034779A (en) * 2017-03-27 2017-08-11 东南大学 The girder falling bracing means of beam bridge drop in beam section
CN107034779B (en) * 2017-03-27 2019-11-12 东南大学 The girder falling bracing means of beam bridge drop in beam section
CN109653082A (en) * 2019-01-18 2019-04-19 盛年科技有限公司 A kind of two-way function divergence type shock mitigation system
CN109653082B (en) * 2019-01-18 2021-04-13 盛年科技有限公司 Bidirectional function separation type damping system

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20150218

Termination date: 20170703