CN201778280U - Fixing shock absorption buckling tenon for bridges - Google Patents

Fixing shock absorption buckling tenon for bridges Download PDF

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Publication number
CN201778280U
CN201778280U CN2010205366204U CN201020536620U CN201778280U CN 201778280 U CN201778280 U CN 201778280U CN 2010205366204 U CN2010205366204 U CN 2010205366204U CN 201020536620 U CN201020536620 U CN 201020536620U CN 201778280 U CN201778280 U CN 201778280U
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CN
China
Prior art keywords
trip
locker
bridge
base plate
shock absorption
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 - Lifetime
Application number
CN2010205366204U
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Chinese (zh)
Inventor
孟凡超
李承根
熊劲松
周亮
刘海亮
杨标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Xinzhu Road and Bridge Machinery Co Ltd
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Chengdu Xinzhu Road and Bridge Machinery Co Ltd
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Priority to CN2010205366204U priority Critical patent/CN201778280U/en
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Publication of CN201778280U publication Critical patent/CN201778280U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a fixing shock absorption buckling tenon for bridges, comprising a buckling tenon (1), an upper seat plate (2), a pedestal (3), a beam body (4) and a bridge pier (5); the shock absorption and insulation structure further comprises a speed locker (7), an anti-tensioning seat (9) and a locker bracket (10); the locker bracket (10) is fixedly connected with the upper surface of the upper seat plate (2); the locker bracket (10) is provided with a limit support ear (10a); the piston tank cylinder (7a) of the speed locker (7) is buckled in a limit support ear (10a); and the piston rods (7b) at the both ends of the speed locker (7) are communicated with the anti-tensioning seat (9) fixed to the beam body (4). The fixing shock absorption buckling tenon for bridges has simple structure, skilful design and good shock resistant effect, and is convenient to assemble and disassemble shock resistant components.

Description

A kind of fixedly damping trip that is used for bridge
Technical field
The utility model belongs to the bridge technology field, relates to a kind of fixedly damping trip of bridge concretely.
Background technology
China is the multiple state of an earthquake.Earthquake takes place frequently especially in recent years, and what the design of traditional bridge pad can not have been satisfied present bridge subtracts the shock insulation requirement.The damping design of continuous beam wherein becomes a difficult problem especially.Characteristics such as it is big that continuous beam has the temperature movement amount, and vertical force is big.General bearing can only satisfy every displacements such as its temperature, and can not satisfy the requirement of its damping.
The bridge design of domestic existing application at present subtracts earthquake isolating equipment and mainly contains two classes, and a kind of is that monolithic subtracts earthquake isolating equipment, and a kind of is that separate type subtracts earthquake isolating equipment.It mainly is that bearing is provided with routinely that separate type subtracts earthquake isolating equipment, is provided with special damper (being mainly viscous damper etc.) in addition separately and bears and subtract shock insulation function.Lead core rubber support, high-damping rubber bearing since lateral stiffness a little less than, be difficult to satisfy the requirement of bridge power performance aspect, simultaneously since the quality of rubber be difficult for guaranteeing that the durability of bearing can't reach the requirement of expection; The friction swing bearing is the improvement to common spherical bearing, but this bearing can make superstructure produce a certain amount of rising displacement in seismic process, the difference rising displacement meeting of each pier makes the beam body produce not contour support settlement, cause the irregularity of driving and the inferior internal force of girder, thus superstructure is produced earthquake, therefore, being not suitable for very much should be in the damping device of continuous beam.Band damper bearing has damping characteristic preferably, but when bearing vertical bearing capacity greatly the time, and seat structure complexity, floor space are huge, make that the integral bridge cost is higher.
Continuous beam is relatively stricter with the requirement of bearing, and the especially use of shock mount should be satisfied the displacement that the variations in temperature, vehicle ' etc. of beam body produce, and realizes the needs of damping again under the condition of earthquake.The elastic-plastic deformation of mild steel can absorb lot of energy, thereby satisfy the needs of damping power consumption, but, can not satisfy the displacement under the bridge regular service conditions and the situation of plastic strain does not take place the damping trip because the amount of deflection scope of mild steel generation elastic deformation is very little.
The utility model content
The purpose of this utility model be to provide a kind of simple in structure, guaranteeing that damping effect effectively improves the application life of shock-damping structure assembly simultaneously, especially adapts to the fixedly damping trip of the bridge of beam body and bridge pier big displacement quantity.
The technical solution of the utility model is as follows:
A kind of fixedly damping trip that is used for bridge, comprise trip, upper base plate, base, beam body and bridge pier, the upper end of described trip is sleeved in the stopper slot of described upper base plate soffit, the lower end of described trip is connected with described base, this base is fixed on the described bridge pier, this seismic isolation and reduction structure also comprises the speed lock, tension seat and lock support, described lock support is fixedly connected on described upper base plate upper surface, this lock support has spacing journal stirrup, the piston bore of described speed lock is connected in the described spacing journal stirrup, and the piston rod at described speed lock two ends is connected with described tension seat on being fixed on described beam body.
Adopt said structure to satisfy the actual needs of continuous beam, when not being subjected to the situation of extraneous powerful horizontal impact power such as earthquake, the suffered horizontal force of this structure is the horizontal movement (when coming for continuous beam, this displacement meeting is very big) of generations such as variations in temperature and vehicle '.But the damping trip of this moment does not participate in work, and just the speed lock bears the horizontal movement (promptly by the mobile compliance relative displacement that is implemented between impact force situation underbeam bodies such as not being subjected to earthquake and the bridge pier between piston rod in the speed lock and the piston bore) of this part.When in case the horizontal impact power to bridge that the generation earthquake produces reaches design standard, the speed lock carries out locked according to the velocity amplitude of setting, piston rod and piston bore form one and can not relatively move, and trip will bear the purpose that horizontal impact power that earthquake produces reaches damping this moment.In this structure directly with speed lock and beam body ways of connecting, by regulating the speed lock that distance between the tension seat just can practical different size specifications, avoided the speed lock is installed in the restriction that upper base plate inside will be subjected to the upper base plate size.Specifically under the situation that relative displacement under normal circumstances is bigger between bridge pier and the beam body, the displacement that the speed lock can reach is bigger, need select long speed lock for use, just can realize the installation connection of this speed lock by the connection design of tension seat.
Described trip has terminal pad, and this terminal pad is sleeved in the circular trough of upper base plate soffit.
Beneficial effect: the utility model is simple in structure, be skillfully constructed, anti seismic efficiency is good and the easy installation and removal of antidetonation assembly.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structure principle chart of the present utility model;
Fig. 2 is the stereogram of trip coupling assembling.
The specific embodiment
Embodiment: as Fig. 1, shown in 2: a kind of fixedly damping trip that is used for bridge, comprise trip 1, upper base plate 2, base 3, beam body 4 and bridge pier 5, the upper end of described trip 1 is sleeved in the stopper slot of described upper base plate 2 soffits, the lower end of described trip 1 is connected with described base 3, this base 3 is fixed on the described bridge pier 5, this seismic isolation and reduction structure also comprises speed lock 7, tension seat 9 and lock support 10, described lock support 10 is fixedly connected on described upper base plate 2 upper surfaces, this lock support 10 has spacing journal stirrup 10a, the piston bore 7a of described speed lock 7 is connected in the described spacing journal stirrup 10a, and the piston rod 7b at described speed lock 7 two ends is connected with described tension seat 9 on being fixed on described beam body 4.
Described trip 1 has terminal pad 1a, and this terminal pad 1a is sleeved in the circular trough of upper base plate 2 soffits.

Claims (2)

1. fixedly damping trip that is used for bridge, comprise trip (1), upper base plate (2), base (3), beam body (4) and bridge pier (5), the upper end of described trip (1) is sleeved in the stopper slot of described upper base plate (2) soffit, the lower end of described trip (1) is connected with described base (3), this base (3) is fixed on the described bridge pier (5), it is characterized in that: this seismic isolation and reduction structure also comprises speed lock (7), tension seat (9) and lock support (10), described lock support (10) is fixedly connected on described upper base plate (2) upper surface, this lock support (10) has spacing journal stirrup (10a), the piston bore (7a) of described speed lock (7) is connected in the described spacing journal stirrup (10a), and the piston rod (7b) at described speed lock (7) two ends is connected with described tension seat (9) on being fixed on described beam body (4).
2. a kind of fixedly damping trip that is used for bridge according to claim 1, it is characterized in that: described trip (1) has terminal pad (1a), and this terminal pad (1a) is sleeved in the circular trough of upper base plate (2) soffit.
CN2010205366204U 2010-09-20 2010-09-20 Fixing shock absorption buckling tenon for bridges Expired - Lifetime CN201778280U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205366204U CN201778280U (en) 2010-09-20 2010-09-20 Fixing shock absorption buckling tenon for bridges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205366204U CN201778280U (en) 2010-09-20 2010-09-20 Fixing shock absorption buckling tenon for bridges

Publications (1)

Publication Number Publication Date
CN201778280U true CN201778280U (en) 2011-03-30

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102561176A (en) * 2012-01-19 2012-07-11 成都市新筑路桥机械股份有限公司 Limiting structure for bridge
CN104278625A (en) * 2014-10-13 2015-01-14 洛阳双瑞特种装备有限公司 Cantilever type damping device for simply supported girder bridge of railway
CN105937202A (en) * 2016-05-03 2016-09-14 北京交达铁工科技有限公司 Separation type mild steel shock absorber
CN107034796A (en) * 2017-06-19 2017-08-11 合肥元康环境科技有限公司 A kind of bridge earthquake resistance support
CN107503284A (en) * 2017-08-30 2017-12-22 中铁二院工程集团有限责任公司 A kind of design method of bridge buffering energy-consumption anti-fall girder apparatus
CN111749119A (en) * 2020-07-08 2020-10-09 中南大学 Speed locking mild steel damper and large-span bridge comprising same
CN112323615A (en) * 2020-11-24 2021-02-05 程勇 Bridge elastic-plastic limiting damping energy dissipation device and design method
CN113818338A (en) * 2021-10-22 2021-12-21 中南大学 Bridge, horizontal bidirectional vibration damping/vibrating support thereof and vibration damping/vibrating method
CN114775405A (en) * 2022-04-11 2022-07-22 同济大学 Girder corner control type bridge damping vibration damper

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102561176A (en) * 2012-01-19 2012-07-11 成都市新筑路桥机械股份有限公司 Limiting structure for bridge
CN102561176B (en) * 2012-01-19 2014-10-15 成都市新筑路桥机械股份有限公司 Limiting structure for bridge
CN104278625A (en) * 2014-10-13 2015-01-14 洛阳双瑞特种装备有限公司 Cantilever type damping device for simply supported girder bridge of railway
CN104278625B (en) * 2014-10-13 2016-06-29 洛阳双瑞特种装备有限公司 A kind of Simple Supported Railway Bridges beam type damping device
CN105937202A (en) * 2016-05-03 2016-09-14 北京交达铁工科技有限公司 Separation type mild steel shock absorber
CN107034796A (en) * 2017-06-19 2017-08-11 合肥元康环境科技有限公司 A kind of bridge earthquake resistance support
CN107503284A (en) * 2017-08-30 2017-12-22 中铁二院工程集团有限责任公司 A kind of design method of bridge buffering energy-consumption anti-fall girder apparatus
CN107503284B (en) * 2017-08-30 2019-02-12 中铁二院工程集团有限责任公司 A kind of design method of bridge buffering energy-consumption anti-fall girder apparatus
CN111749119A (en) * 2020-07-08 2020-10-09 中南大学 Speed locking mild steel damper and large-span bridge comprising same
CN111749119B (en) * 2020-07-08 2021-08-10 中南大学 Speed locking mild steel damper and large-span bridge comprising same
CN112323615A (en) * 2020-11-24 2021-02-05 程勇 Bridge elastic-plastic limiting damping energy dissipation device and design method
CN113818338A (en) * 2021-10-22 2021-12-21 中南大学 Bridge, horizontal bidirectional vibration damping/vibrating support thereof and vibration damping/vibrating method
CN113818338B (en) * 2021-10-22 2022-06-21 中南大学 Bridge, horizontal bidirectional vibration damping/vibrating support thereof and vibration damping/vibrating method
CN114775405A (en) * 2022-04-11 2022-07-22 同济大学 Girder corner control type bridge damping vibration damper
CN114775405B (en) * 2022-04-11 2024-03-26 同济大学 main beam corner control type bridge damping vibration attenuation device

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Granted publication date: 20110330