CN103321143A - Bridge damping support - Google Patents
Bridge damping support Download PDFInfo
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- CN103321143A CN103321143A CN201310249517XA CN201310249517A CN103321143A CN 103321143 A CN103321143 A CN 103321143A CN 201310249517X A CN201310249517X A CN 201310249517XA CN 201310249517 A CN201310249517 A CN 201310249517A CN 103321143 A CN103321143 A CN 103321143A
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Abstract
The invention belongs to the technical field of bridge supports, and particularly discloses a bridge damping support. The technical scheme mainly includes that the bridge damping support structurally comprises an upper support plate and a lower support plate, the upper support plate can be fixedly connected with a bridge body, the lower support plate can be fixedly connected with piers, the upper plate surface of the lower support plate is a spherical surface, a middle slider and a bi-spherical rotating block are arranged between the upper support plate and the lower support plate, the upper plate surface of the middle slider is rectangular, and the lower plate surface of the middle slider is spherical. By the aid of the bridge damping support, consumption of conversion between kinetic energy and potential energy generated by swing of a bridge when an earthquake happens can be facilitated, damage of earthquake energy to an abutment is reduced, and earthquake-proof isolation energy dissipation damping functions are achieved when the earthquake happens.
Description
Technical field
The invention belongs to the bridge pad technical field, disclose specifically a kind of shock-absorbing bridge support.
Background technology
In bridge construction, bearing is the vitals that connects bridge superstructure and substructure, at first must have enough bearing capacities to guarantee safe and reliable end reaction (vertical force and horizontal force) being passed to substructure; Secondly bearing to the constraint of bridge deformation (displacement and corner) should be as much as possible little with the free-extension that adapts to the beam body and the needs of rotation, otherwise will produce time internal force for its inside of statically-indeterminate structure, to the structure injury, shortening structure application life greatly.When running into earthquake especially earthquake magnitude be larger, the superstructure of bridge has certain displacement and speed with respect to bridge pier, cause thus effect strong between beam body and bridge pier, if bearing does not have good damping, function of shock insulation, the fracture at the bottom of will causing larger infringement and very likely cause pier the beam body and the generation of the beam accident that falls.Traditional friction pendulum vibration absorption and isolation support prolongs the purpose that natural vibration period of bridge has been realized shock insulation by pendulum principle; The friction of modified ultra-high molecular mass and corrosion resistant plate has certain power consumption effect, but friction factor is less, and damping effect is not obvious, and the requirement such as structure temperature variable displacement can't satisfy non-shake the time.
The content of invention
Purpose of the present invention just provides a kind of shock-absorbing bridge support with shock-resistant and energy-dissipating.
Realize that the technical scheme that above-mentioned purpose of the present invention proposes is:
A kind of shock-absorbing bridge support, its structure comprises that the upper bracket plate that can be fixedly connected with the beam body, the upper face that can be fixedly connected with bridge pier are the lower support plate of spherical, and being provided with upper face between described upper and lower support plate is middle sliding shoe and the two spherical rotation piece rectangular-shaped, that lower face is dome shape.
The additional technical feature that consists of above-mentioned a kind of shock-absorbing bridge support also comprises:
---the border of described upper bracket plate is provided with back-up ring;
---the interior side direction of described upper bracket plate back-up ring is provided with corrosion resistant plate;
---the upper face border in described lower support plate is provided with spacing ring;
---described spacing ring is fixedly connected with described lower support plate by snap ring holding screw bolt;
---be provided with the flat frictional pair that is consisted of by stainless-steel sheet between described upper bracket plate and the middle sliding shoe, be provided with the corresponding sphere friction pair that is consisted of by ultra-high molecular weight polyethylene board in the middle of sliding shoe and the two spherical rotation pieces in the middle of described, be provided with the second sphere friction pair in the middle of the described pair of spherical rotation piece and the lower support plate;
---the described second sphere friction pair of formation by be arranged at described pair on the spherical rotation piece lower face ceramic coating and the chromium coating that is arranged on the upper face of described lower support plate consist of;
---consist of the subsequent corrosion of described lower support plate upper face greater than the subsequent corrosion of the described pair of spherical rotation piece lower face that is slidingly connected with it;
---consist of the spherical crown surface of described pair of spherical rotation piece upper face greater than the spherical crown surface of the described middle sliding shoe lower face that is slidingly connected with it;
---the step for preparing the method for the ceramic coating on the two spherical rotation piece lower faces of above-mentioned a kind of shock-absorbing bridge support is: at first, described pair of spherical rotation piece lower face carried out surface preparation, be first purified treatment to remove the dirt of surface of the work, roughening treatment is to increase contact surface between coating and base material, to increase the bond strength of coating and mechanical snap power, raising coating and the base material of base material again; Second, workpiece preheating (the temperature general control is at 60-120 ℃), the coating cracking that the stress that the moisture of eliminating surface of the work and moisture, the interface temperature when the raising spraying particle contacts with workpiece, minimizing cause because of the thermal dilation difference of base material and coating material causes; The 3rd, plasma spraying method is selected in spraying.The 4th, the coating post processing, to sprayed coating carry out remelting process make porous and only become the dense coating that is metallurgical binding with base material with the coating of mechanical bond with matrix.
A kind of shock-absorbing bridge support provided by the present invention, compared with prior art have the following advantages: one, because sliding shoe cooperates layout with spacing ring, two spherical rotation piece in the middle of being provided with between the upper lower support plate of this shock mount of formation, when the day of satisfying bridge construction, the normal temperature variable displacement required, also reduced inferior internal force to the damage of works, rational in infrastructure, safe and applicable; They are two years old, owing to being sphere curved surface at the upper face of the lower support plate that consists of this shock-absorbing bridge support and the lower face of middle sliding shoe, so that can producing at the two soon, two spherical rotation swing displacement, so that the conversion consumption between kinetic energy and potential energy, consume the energy that earthquake produces, subdued the destruction of seismic energy to pier, the antidetonation isolation energy dissipating damping function when having satisfied earthquake; They are three years old, owing to consisting of the subsequent corrosion of lower support plate upper face greater than the subsequent corrosion of the two spherical rotation piece lower faces that are slidingly connected with it, consist of the spherical crown surface of above-mentioned pair of spherical rotation piece upper face greater than the spherical crown surface of the described middle sliding shoe lower face that is slidingly connected with it, so that two spherical rotation pieces can produce the swing displacement on lower upper bracket plate plate face, so that the conversion consumption between kinetic energy and potential energy; Its four because the chromium plating face between the upper face of ceramic coating that the soffit of two spherical rotation pieces forms and lower support plate cooperates the sphere friction pair that forms, its friction factor can reach 0.04 and stablize, and has the obvious and better characteristics of damping effect of friction energy-dissipating.
Description of drawings
Fig. 1: the structural representation of shock-absorbing bridge support provided by the present invention.
The specific embodiment
Be described in further detail below in conjunction with the structure of accompanying drawing to a kind of shock-absorbing bridge support provided by the invention:
The structural representation of the shock-absorbing bridge support that provides of invention is provided, its structure comprise can be fixedly connected with the beam body and to be provided with the upper bracket plate 1 of back-up ring 11, the upper face that can be fixedly connected with bridge pier be the lower support plate 8 of spherical 81 and be arranged at two spherical rotation pieces 6 formations that between the two the spherical 81 that is stuck in middle sliding shoe 3 in the above-mentioned upper bracket plate back-up ring 11 and lower peripheral surface and lower support plate can relative sliding in the border; In the structure that consists of above-mentioned shock mount, be provided with between upper bracket plate and the middle sliding shoe and be provided with the first sphere friction pair 4 in the middle of flat frictional pair 2, middle sliding shoe and the two spherical rotation pieces, two spherical rotation piece is provided with the second sphere friction pair 7 with the lower support plate centre, is provided with spacing ring 5 in the upper face border of lower support plate.
The shock-absorbing bridge support of this structure, can play on the one hand the effect of common bearing, be about to the bridge upper load by upper, lower support plate 1,8 and the middle sliding shoe 3 and the two spherical rotation pieces 6 that are arranged at the two pass to uniformly substructure, and level to the transverse axis vertical pivot when being subjected to displacement, can adapt to the deformation requirements that displacement that superstructure causes because of shrinkage and creep and warm variable displacement etc. cause by the flat frictional pair that is arranged at the two between upper bracket plate and middle sliding shoe, avoid inside configuration to produce larger inferior internal force, thereby reduce the infringement to bridge construction, increase the service life; Can play on the other hand and subtract function of shock insulation, when being the earthquake generation, in case earthquake horizontal force and vertical force during greater than the design shearing resistance of spacing ring 5 this spacing ring disconnect, middle sliding shoe on the lower support plate and the level between two spherical rotation piece and middle sliding shoe to coming and going movement, namely by between a sliding shoe and lower support plate and the arc surface of middle sliding shoe and two spherical rotation pieces prolong natural vibration period of bridge, reduce the vibration displacement amplitude between upper bracket plate and lower support plate, thereby realize the effect of shock insulation; And by between middle sliding shoe and lower support plate and the friction of two sphere friction pairs between two spherical rotation piece and middle sliding shoe seismic energy is converted into heat energy, to reach the consumption purpose of seismic energy.
In the structure of above-mentioned shock-absorbing bridge support,
---the side direction back-up ring 11 of upper bracket plate is provided with corrosion resistant plate 12 with the contact surface of middle sliding shoe 3, and the side that middle sliding shoe is corresponding is provided with slip copper bar 31, simultaneously the soffit of above-mentioned upper bracket plate and middle sliding shoe is provided with corrosion resistant plate and consists of flat frictional pair, so that the two the relative sliding that the lateral force on the two horizontal plane and longitudinal force cause;
---the first sphere friction pair 4 that is consisted of by ultra-high molecular weight polyethylene board in the upper surface setting of middle sliding shoe and two spherical rotation pieces, and be provided with by plasma spraying technology at the soffit of two spherical rotation pieces and process the second sphere friction pair 7 that is consisted of by the chrome-faced layer that forms ceramic coating and lower support plate setting, when sliding shoe and two spherical rotation piece slide in the upper face of the spherical of lower support plate in the middle of can realizing, the potential energy that earthquake forms and the conversion between the friction energy, be conducive to simultaneously consist of the middle sliding shoe of bearing, two spherical rotation pieces and lower support plate are to the absorption of heat energy, prevent from causing the gathering of contact surface heat, the shape and structure of bearing is damaged.
---in said structure, be connected by snap ring holding screw bolt 51 between spacing ring and lower support plate, realize function of seismic resistance so that the displacement energy of earthquake hits it to split to destroy, and the maintenance after being convenient to shake; Even if the two welding also must be the interval electric welding, so that the combination of the two has certain intensity, guaranteeing again under the design earthquake magnitude that the two can be hit it by middle sliding shoe and two spherical rotation pieces splits;
---consist of the subsequent corrosion of above-mentioned lower support plate upper face greater than the subsequent corrosion of the two spherical rotation piece lower faces that are slidingly connected with it, so that two spherical rotation pieces can produce the swing displacement on lower upper bracket plate plate face, so that the conversion consumption between kinetic energy and potential energy;
---consist of the spherical crown surface of above-mentioned pair of spherical rotation piece upper face greater than the spherical crown surface of the described middle sliding shoe lower face that is slidingly connected with it, so that middle sliding shoe can produce the swing displacement on the upper face of two spherical rotation pieces, so that the conversion consumption between kinetic energy and potential energy equally;
---the soffit at two spherical rotation pieces is provided with the concrete steps of processing the formation ceramic coating by plasma spraying technology:
At first, lower face to two spherical rotation piece workpiece of consisting of shock-absorbing bridge support carries out surface preparation, namely use first alcohol, gasoline and trichloro-ethylene to remove respectively the oil stain of surface of the work, greasy dirt and paint, rear use caustic soda is removed the oxide skin of surface of the work, re-uses the water-based soils of its surface of the work of steam clean;
Then, carry out roughening treatment by its surface of nozzleman's ordered pair again, to increase the bond strength of the contact surface between institute's coating layer and workpiece base material, the mechanical snap power that increases coating and base material, raising coating and base material;
The 3rd, workpiece is heated to 60-120 ℃ carries out preheating, the coating cracking that causes with the moisture of eliminating surface of the work and moisture, the interface temperature when the raising spraying particle contacts with workpiece, the stress of avoiding the difference because of the coefficient of thermal expansion of workpiece and coating material to cause;
The 4th, spraying selects the plasma spraying method spraying to be prepared into the ceramic coating that thickness is 0.34-0.37 μ m;
The 4th, the coating post processing scans fusing to sprayed coating with laser beam and carries out remelting and process, make porous and only become the ceramic of compact coating that is metallurgical binding with base material with the coating of mechanical bond with matrix.
The above-mentioned sphere friction pair that cooperates formation by the chromium plating face between the upper face of the ceramic coating that forms at the soffit of two spherical rotation pieces and lower support plate, its friction factor can reach 0.04 and stablize, and friction energy-dissipating is obvious, and damping effect is better.
Claims (10)
1. shock-absorbing bridge support, its structure comprises that the upper bracket plate that can be fixedly connected with the beam body, the upper face that can be fixedly connected with bridge pier are the lower support plate of spherical, it is characterized in that: being provided with upper face between described upper and lower support plate is middle sliding shoe and the two spherical rotation piece rectangular-shaped, that lower face is dome shape.
2. a kind of shock-absorbing bridge support as claimed in claim 1, it is characterized in that: the border of described upper bracket plate is provided with back-up ring.
3. a kind of shock-absorbing bridge support as claimed in claim 2, it is characterized in that: the interior side direction of described upper bracket plate back-up ring is provided with corrosion resistant plate.
4. a kind of shock-absorbing bridge support as claimed in claim 1, it is characterized in that: the upper face border in described lower support plate is provided with spacing ring.
5. a kind of shock-absorbing bridge support as claimed in claim 4, it is characterized in that: described spacing ring is fixedly connected with described lower support plate by snap ring holding screw bolt.
6. a kind of shock-absorbing bridge support as claimed in claim 1, it is characterized in that: be provided with the flat frictional pair that is consisted of by stainless-steel sheet between described upper bracket plate and the middle sliding shoe, be provided with the corresponding sphere friction pair that is consisted of by ultra-high molecular weight polyethylene board in the middle of sliding shoe and the two spherical rotation pieces in the middle of described, be provided with the second sphere friction pair in the middle of the described pair of spherical rotation piece and the lower support plate.
7. a kind of shock-absorbing bridge support as claimed in claim 6 is characterized in that: the described second sphere friction pair of formation by be arranged at described pair on the spherical rotation piece lower face ceramic coating and the chromium coating that is arranged on the upper face of described lower support plate consist of.
8. a kind of shock-absorbing bridge support as claimed in claim 1 is characterized in that: consist of the subsequent corrosion of described lower support plate upper face greater than the subsequent corrosion of the described pair of spherical rotation piece lower face that is slidingly connected with it.
9. a kind of shock-absorbing bridge support as claimed in claim 1 is characterized in that: consist of the spherical crown surface of described pair of spherical rotation piece upper face greater than the spherical crown surface of the described middle sliding shoe lower face that is slidingly connected with it.
10. the step of the method for the ceramic coating on the two spherical rotation piece lower faces of the described a kind of shock-absorbing bridge support of preparation claim 7 is: at first, described pair of spherical rotation piece lower face carried out surface preparation, be first purified treatment to remove the dirt of surface of the work, roughening treatment is to increase contact surface between coating and base material, to increase the bond strength of coating and mechanical snap power, raising coating and the base material of base material again;
Second, workpiece preheating (the temperature general control is at 60-120 ℃), the coating cracking that the stress that the moisture of eliminating surface of the work and moisture, the interface temperature when the raising spraying particle contacts with workpiece, minimizing cause because of the thermal dilation difference of base material and coating material causes;
The 3rd, plasma spraying method is selected in spraying;
The 4th, the coating post processing, to sprayed coating carry out remelting process make porous and only become the dense coating that is metallurgical binding with base material with the coating of mechanical bond with matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249517XA CN103321143A (en) | 2013-06-23 | 2013-06-23 | Bridge damping support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249517XA CN103321143A (en) | 2013-06-23 | 2013-06-23 | Bridge damping support |
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| CN103321143A true CN103321143A (en) | 2013-09-25 |
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| CN201310249517XA Pending CN103321143A (en) | 2013-06-23 | 2013-06-23 | Bridge damping support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735115A (en) * | 2016-03-01 | 2016-07-06 | 石家庄铁道大学 | Connecting shock absorption device for continuous girder bridge zone control |
| CN106638284A (en) * | 2016-11-29 | 2017-05-10 | 洛阳双瑞特种装备有限公司 | Bridge support with novel friction pair |
| CN108547219A (en) * | 2018-03-27 | 2018-09-18 | 重庆红岩建设机械制造有限责任公司 | A kind of secondary improved method of bridge pad friction |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892944Y (en) * | 2006-03-23 | 2007-04-25 | 上海市政工程设计研究院 | Combined friction pairs for track beam bearing |
| CN201560383U (en) * | 2009-11-24 | 2010-08-25 | 衡水宝力工程橡胶有限公司 | Friction swing type hyperbolic damping and isolating spherical support seat |
| CN102286718A (en) * | 2010-06-17 | 2011-12-21 | 上海宝钢设备检修有限公司 | Method for improving bond strength of thermal spraying coating layer and metal substrate |
| KR101163404B1 (en) * | 2011-05-06 | 2012-07-12 | 김성원 | A shperical bearing of structures |
| CN202530371U (en) * | 2012-04-08 | 2012-11-14 | 衡水宝力工程橡胶有限公司 | Friction pendulum shock-reduction seismic-isolation spherical supporting seat |
| CN202658518U (en) * | 2012-07-26 | 2013-01-09 | 衡水贵平工程橡塑有限公司 | Friction double-curved-surface support |
| CN103147394A (en) * | 2013-03-09 | 2013-06-12 | 北京工业大学 | Pulling-resistant bidirectional sliding friction bearing |
| CN203475299U (en) * | 2013-06-23 | 2014-03-12 | 衡水中铁建工程橡胶有限责任公司 | Bridge shock mount |
-
2013
- 2013-06-23 CN CN201310249517XA patent/CN103321143A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892944Y (en) * | 2006-03-23 | 2007-04-25 | 上海市政工程设计研究院 | Combined friction pairs for track beam bearing |
| CN201560383U (en) * | 2009-11-24 | 2010-08-25 | 衡水宝力工程橡胶有限公司 | Friction swing type hyperbolic damping and isolating spherical support seat |
| CN102286718A (en) * | 2010-06-17 | 2011-12-21 | 上海宝钢设备检修有限公司 | Method for improving bond strength of thermal spraying coating layer and metal substrate |
| KR101163404B1 (en) * | 2011-05-06 | 2012-07-12 | 김성원 | A shperical bearing of structures |
| CN202530371U (en) * | 2012-04-08 | 2012-11-14 | 衡水宝力工程橡胶有限公司 | Friction pendulum shock-reduction seismic-isolation spherical supporting seat |
| CN202658518U (en) * | 2012-07-26 | 2013-01-09 | 衡水贵平工程橡塑有限公司 | Friction double-curved-surface support |
| CN103147394A (en) * | 2013-03-09 | 2013-06-12 | 北京工业大学 | Pulling-resistant bidirectional sliding friction bearing |
| CN203475299U (en) * | 2013-06-23 | 2014-03-12 | 衡水中铁建工程橡胶有限责任公司 | Bridge shock mount |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735115A (en) * | 2016-03-01 | 2016-07-06 | 石家庄铁道大学 | Connecting shock absorption device for continuous girder bridge zone control |
| CN106638284A (en) * | 2016-11-29 | 2017-05-10 | 洛阳双瑞特种装备有限公司 | Bridge support with novel friction pair |
| CN108547219A (en) * | 2018-03-27 | 2018-09-18 | 重庆红岩建设机械制造有限责任公司 | A kind of secondary improved method of bridge pad friction |
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Application publication date: 20130925 |