CN203878465U - Friction pendulum damping supporting seat - Google Patents

Friction pendulum damping supporting seat Download PDF

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Publication number
CN203878465U
CN203878465U CN201420256910.1U CN201420256910U CN203878465U CN 203878465 U CN203878465 U CN 203878465U CN 201420256910 U CN201420256910 U CN 201420256910U CN 203878465 U CN203878465 U CN 203878465U
Authority
CN
China
Prior art keywords
supporting seat
friction pendulum
shock mount
bearing
connecting portion
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
CN201420256910.1U
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Chinese (zh)
Inventor
王志强
闫兴非
周良
年福龙
汪罗英
彭俊
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.)
Shanghai Tong Qiao Bridge Engineering Science And Technology Ltd
Shanghai Urban Construction Design Research Institute Co ltd
Original Assignee
Shanghai Tong Qiao Bridge Engineering Science And Technology Ltd
Shanghai Urban Construction Design Research Institute Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Tong Qiao Bridge Engineering Science And Technology Ltd, Shanghai Urban Construction Design Research Institute Co ltd filed Critical Shanghai Tong Qiao Bridge Engineering Science And Technology Ltd
Priority to CN201420256910.1U priority Critical patent/CN203878465U/en
Application granted granted Critical
Publication of CN203878465U publication Critical patent/CN203878465U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The utility model discloses a friction pendulum damping supporting seat which comprises an upper supporting seat and a lower supporting seat. The upper supporting seat is arranged on the upper surface of the lower supporting seat, a connecting portion is arranged at the upper end of the upper supporting seat, a spherical convex surface is arranged on the lower end surface of the upper supporting seat, a spherical concave surface is arranged on the upper surface of the lower supporting seat, a friction damping layer is uniformly arranged on the upper surface of the spherical concave surface, and the radian of the spherical convex surface is identical to the radian of the spherical concave surface. The friction pendulum damping supporting seat has the advantages that the lower supporting seat can slide relatively, external energy can be consumed in sliding procedures of the lower supporting seat, and accordingly damping effects can be realized.

Description

Friction pendulum shock mount
Technical field
The utility model relates to the shock-damping structure in a kind of bridge field, relates in particular to a kind of friction pendulum shock mount.
Background technology
Shock mount is provided in a side of the device between building and basis.Early stage damping device is mainly the laminated rubber shock mount being superimposed to form by rubber and steel sheet.Again it was improved afterwards, in laminated rubber shock mount, added lead rod, formed lead for retractable pencil laminated rubber shock mount.
As Chinese patent CN102061666A discloses the special-purpose earthquake isolation bearing of a kind of railroad bridge, comprise lead rubber bearing, X-type mild steel damper and up and down knot tying, X-type mild steel damper is positioned at the both sides of lead rubber bearing, and is fixed in up and down knot tying.
The shock mount of this structure, can improve the yield strength of bearing, limits within the specific limits the displacement of bridge.But easily in shock-damping structure, produce time internal force, damage bridge construction.
Utility model content
Because the above-mentioned defect of prior art, the utility model provides a kind of friction pendulum shock mount, and its upper bracket bottom can produce relative slippage, and consumes external energy in slipping, thereby plays the effect of damping.
For achieving the above object, the utility model provides a kind of friction pendulum shock mount, comprise bearing top and bearing bottom, described bearing top is arranged at described bearing bottom upper surface, the upper end on described bearing top is provided with connecting portion, and the lower surface on described bearing top is spherical convex surface, and described bearing bottom upper surface is provided with spherical concave surface, the upper surface of described spherical concave surface is evenly provided with frictional damping layer, and described spherical convex surface is identical with the radian of described spherical concave surface.
Preferably, the upper surface of described connecting portion is horizontal plane.
Preferably, between described connecting portion and described spherical convex surface, be provided with sidepiece, described sidepiece is cylindricality.
Preferably, between described connecting portion and described spherical convex surface, be provided with sidepiece, described sidepiece is taper.
Preferably, described frictional damping layer is the teflon fibre braided thing of super-pressure, Nomex (Nomex nylon) (Nomex), glass fiber or aramid fiber braid novel wear resistant consumption friction material.
Preferably, the material of described bearing bottom is low-alloy steel.
The beneficial effects of the utility model: the utility model designs by said structure, owing to being spherical by the concave design of the soffit on bearing top and bearing bottom, under the effect of external force, displacement can be carried out along its relative direction in bearing top in any direction.
In addition, the frictional damping layer that is arranged at concave surface can cushion rock deformation pressure, loss external force energy, thus reach the object of energy-dissipating and shock-absorbing.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is that the present embodiment friction pendulum shock mount master cuts open structural representation.
Fig. 2 is the present embodiment friction pendulum shock mount mounting structure schematic diagram.
The specific embodiment
As shown in Figure 1, the present embodiment has proposed a kind of friction pendulum shock mount, comprises bearing top 2 and bearing bottom 3.Wherein the upper end on bearing top 2 is provided with connecting portion 21, and this connecting portion is used for connecting bearing top 2 and bridge.The upper surface of connecting portion 21 is horizontal plane, and the lower surface on bearing top 2 is spherical convex surface 23.Between connecting portion 21 and spherical convex surface 23, be provided with sidepiece 22, sidepiece 22 is cylindricality.
Bearing bottom 3 adopts low-alloy steel material, and its upper surface is spherical concave surface 32, and the upper surface of spherical concave surface 32 is evenly provided with frictional damping layer 31.Spherical concave surface 32 is identical with the radian of spherical convex surface 23, after both contacts, closely cooperates.
In the present embodiment, the frictional damping layer adopting is the teflon fibre braided thing of super-pressure, Nomex, glass fiber or aramid fiber braid novel wear resistant consumption friction material, by high temperature resistant binder, this teflon fibrous braid, Nomex, glass fiber or aramid fiber braid and sphere is reliably bonding, resistance to compression design bearing capacity can reach 100~250Mpa, and friction factor is 0.02~0.10.
The frictional damping layer 31 that is arranged at this structure not only can cushion the distortion of the bearing causing due to temperature or displacement, and can increase the resistance that upper bracket top and the bottom relatively move, and reduces the displacement that upper bracket top and the bottom relatively move.
Concrete service condition of the present utility model: as shown in Figure 2, beam 4 is fixedly installed on bridge pier 5, then the bearing bottom 3 that is provided with frictional damping layer is fixed on and is arranged on beam 4.Erection support top 2, is positioned on the spherical concave surface 32 of bearing bottom 3 the spherical convex surface 23 of its soffit.Use the same method, several friction pendulum shock mounts are installed on beam, then bearing top 2 is fixedly connected with bridge 1.
In the present embodiment, the radian of the spherical concave surface of the spherical convex surface on the size of bearing top and the bottom, bearing top and bearing bottom can require to adjust according to concrete damping, is not described in detail in this.
In other embodiments, the upper surface of connecting portion can be other shapes that match with bridge polycrystalline substance, such as rectangle concave-convex type etc.
In other embodiments, spherical convex surface directly can be arranged to the lower end of connecting portion, the sidepiece 22 being arranged between connecting portion 21 and spherical convex surface 23 can be also taper or other shapes, and the utility model is not limited to this.
The shock-absorbing bridge support of this structure, can also play the effect of common bearing on the one hand, is about to bridge upper load and evenly passes to substructure by bearing top 2 and bearing bottom 3.When bridge deforms due to variations in temperature, the frictional damping layer being arranged between bearing top and bearing bottom can cushion above-mentioned distortion, avoids inside configuration to produce larger inferior internal force, thereby reduces the infringement to bridge construction, increases the service life.
On the other hand, this structure can play the effect of damper.While there are vibrations, under external force, bearing top by External Force Acting in the frictional damping layer of bearing bottom, when frictional damping layer is compressed to the limit, bearing top starts to produce along the trend of moving on the concave surface of bearing bottom, when external shaking force has overcome the load of vertical or horizontal direction of this structure and frictional force, bearing top and the bottom produce relative slippage.Owing to being arranged at the damping action of bearing bottom frictional damping layer, external energy is consumed rapidly, and bearing top resets under the effect of deadweight and bridge gravity, thereby plays the effect of energy-dissipating and shock-absorbing.Because bearing top and the contact surface between bearing bottom of this structure is sphere, so no matter be the vibrations from which direction, bearing top relatively bearing bottom is subjected to displacement to relative direction, realizes the object of comprehensive damper.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims (6)

1. a friction pendulum shock mount, comprise bearing top and bearing bottom, described bearing top is arranged at described bearing bottom upper surface, it is characterized in that, the upper end on described bearing top is provided with connecting portion, and the lower surface on described bearing top is spherical convex surface, and described bearing bottom upper surface is provided with spherical concave surface, the upper surface of described spherical concave surface is evenly provided with frictional damping layer, and described spherical convex surface is identical with the radian of described spherical concave surface.
2. friction pendulum shock mount as claimed in claim 1, is characterized in that, the upper surface of described connecting portion is horizontal plane.
3. friction pendulum shock mount as claimed in claim 2, is characterized in that, between described connecting portion and described spherical convex surface, is provided with sidepiece, and described sidepiece is cylindricality.
4. friction pendulum shock mount as claimed in claim 2, is characterized in that, between described connecting portion and described spherical convex surface, is provided with sidepiece, and described sidepiece is taper.
5. friction pendulum shock mount as claimed in claim 1, is characterized in that, described frictional damping layer is the teflon fibre braided thing of super-pressure, Nomex (Nomex nylon), glass fiber or aramid fiber braid abrasion performance friction material.
6. the friction pendulum shock mount as described in claim 1 or 5 any one, is characterized in that, the material of described bearing bottom is low-alloy steel.
CN201420256910.1U 2014-05-20 2014-05-20 Friction pendulum damping supporting seat Expired - Lifetime CN203878465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420256910.1U CN203878465U (en) 2014-05-20 2014-05-20 Friction pendulum damping supporting seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420256910.1U CN203878465U (en) 2014-05-20 2014-05-20 Friction pendulum damping supporting seat

Publications (1)

Publication Number Publication Date
CN203878465U true CN203878465U (en) 2014-10-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420256910.1U Expired - Lifetime CN203878465U (en) 2014-05-20 2014-05-20 Friction pendulum damping supporting seat

Country Status (1)

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CN (1) CN203878465U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320555A (en) * 2016-10-14 2017-01-11 智性科技南通有限公司 Friction pendulum isolation bearing with variable curvature
CN108504050A (en) * 2018-02-11 2018-09-07 洛阳双瑞特种装备有限公司 A kind of preparation method and friction pair of bridge pad composite slide-plate
CN112012093A (en) * 2020-09-21 2020-12-01 何静 Vibration isolation buffer for bridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106320555A (en) * 2016-10-14 2017-01-11 智性科技南通有限公司 Friction pendulum isolation bearing with variable curvature
CN108504050A (en) * 2018-02-11 2018-09-07 洛阳双瑞特种装备有限公司 A kind of preparation method and friction pair of bridge pad composite slide-plate
CN112012093A (en) * 2020-09-21 2020-12-01 何静 Vibration isolation buffer for bridge

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20141015