CN203295967U - Novel multi-sliding surface aseismatic bearing - Google Patents
Novel multi-sliding surface aseismatic bearing Download PDFInfo
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- CN203295967U CN203295967U CN2013202317229U CN201320231722U CN203295967U CN 203295967 U CN203295967 U CN 203295967U CN 2013202317229 U CN2013202317229 U CN 2013202317229U CN 201320231722 U CN201320231722 U CN 201320231722U CN 203295967 U CN203295967 U CN 203295967U
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- steel plate
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- rectangle
- chute
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 abstract 2
- 239000010935 stainless steel Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a novel multi-sliding surface aseismatic bearing, comprising an upper part structure and a lower part structure, wherein the upper part structure comprises an upper connection plate, a steel plate at the upper part and stainless steel plates, and the lower part structure comprises slope steel plates at the lower part, a plane steel plate at the lower part, a steel plate at the lower part, a lower connection plate and polyfluortetraethylene plates. The section of the upper part structure is a rectangle provided with a chute, the upper connection plate is respectively fixed with embedding boards of the upper part structure, a chute which is provided with a downward and gradually increasing opening is formed on the bottom of the upper part structure, three slopes of the chute are provided with the stainless steel plates, the section of the lower part structure is formed by isosceles trapezoid and the rectangle, the slope steel plates at the lower part are arranged on the isosceles sides, the plane steel plate at the lower part is arranged on the upper bottom surface, and the polyfluortetraethylene plates are fixedly bounded on the central positions of the slope steel plates at the lower part and the plane steel plate at the lower part. The novel multi-sliding surface aseismatic bearing is simple in structure, low in cost and reliable in performance and can effectively reduce horizontal displacement of the bridge under seismic action and dissipate vibration energy.
Description
Technical field
The utility model belongs to technical field of bridge engineering, is specifically related to a kind of novel many slide planes aseismatic bearing.
Background technology
Earthquake isolating equipment utilizes vibration-isolating system, manages to stop seismic energy to enter agent structure, is proved to be to reduce a kind of effective method of structural vibration response, is also a kind of desirable scheme while repairing historical building structure, and can not changes building types.
What be used for the bridge earthquake resistance field mainly contains neoprene bearing, lead core rubber support, sliding friction type vibration absorption and isolation support, damper etc.
, because of sliding support economy, durable, stable characteristics, to be obtained application by more and more in these several years.Compare with neoprene bearing, the advantage of sliding support maximum is can not resonate under any exciting force effect.The shortcoming of this bearing also clearly.The one, by the friction energy-dissipating between polytetrafluoroethylene (PTFE) and steel plate, its isolating affection is insensitive to the frequency content of earthquake input.The 2nd, this class bearing is without any self-resetting capability, during as shock isolating pedestal, predictability and the reliability of bearing response are all not fully up to expectations, can cause the generation of over-large displacement between bridge construction girder and carriage, and then cause in earthquake causing beam to destroy because the relative displacement of beam pier is excessive.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of novel many slide planes aseismatic bearing is provided, a kind of aseismatic bearing that is used for continuous beam on many supports of simple in structure, cheap, dependable performance, can effectively reduce the horizontal movement of bridge under geological process, the dissipates vibration energy, the damage that earthquake is caused structure drops to minimum, and has self-resetting capability, can be widely used in the middle of the continuous girder bridge structure of earthquake zone.
The utility model comprises superstructure and substructure, and superstructure comprises upper junction plate, top steel plate, corrosion resistant plate, and substructure comprises lower bevel steel plate, lower flat steel plate, bottom steel plate, lower connecting plate, polyfluortetraethylene plate.
The cross section of superstructure is the rectangle that has chute, and upper junction plate fixes with the embedded board of superstructure respectively by high-strength bolt; The bottom of superstructure has that Open Side Down, and opening becomes large chute gradually, and three inclined-planes of chute are provided with corrosion resistant plate;
The cross section of substructure is comprised of isosceles trapezoid and rectangle, and a right-angle side of the bottom surface of isosceles trapezoid and rectangle is isometric; Be provided with the lower bevel steel plate on two isosceles limits of isosceles trapezoid, be provided with the lower flat steel plate on upper bottom surface, and lower bevel steel plate and lower flat steel plate center fixedly are bonded with polyfluortetraethylene plate; Lower bevel steel plate and plane angle are θ; The isosceles trapezoid of substructure and the runner position of superstructure coupling, horizontal direction leaves the certain interval length L; The bottom of rectangle and lower connecting plate welding, lower connecting plate is connected by high-strength bolt with the embedded board in the lower bridge pier foundation simultaneously.
The bevel angle θ of this bearing, slide plane friction factor, top and the bottom gap length L affect the shock-resistance features of structure, and these coefficients are by the mechanical analysis calculative determination to bridge construction.The friction factor of other three slide planes can be different, and research shows when different friction factor is adopted with inclined-plane in plane, the more effectively horizontal movement of structure under the Earthquake occurrence control effect.
Under the frequent load effects such as temperature, vehicular load, bearing, along planar slide, is provided by the top and the bottom gap length along bridge displacement longitudinally; Under geological process, when bridge displacement longitudinally reached the limit value of gap length L, bearing transferred inclined-plane to by planar slide and slides, by the interaction dissipation seismic energy on inclined-plane, top and the bottom.
The utility model beneficial effect is as follows:
The utility model energy aseismatic bearing is simple in structure, cheap, dependable performance, can effectively reduce the horizontal movement of bridge under geological process, the dissipates vibration energy, the damage that earthquake is caused structure drops to minimum, and have self-resetting capability, can be widely used in the middle of the continuous girder bridge structure of earthquake zone.
Description of drawings
Fig. 1 is seat structure schematic diagram of the present utility model;
Fig. 2 is part upward view on bearing;
Fig. 3 is part top view under bearing.
In figure: upper junction plate 1, top steel plate 2, corrosion resistant plate 3, lower bevel steel plate 4, lower flat steel plate 5, bottom steel plate 6, lower connecting plate 7, polyfluortetraethylene plate 8.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, novel many slide planes aseismatic bearing, comprise superstructure and substructure, superstructure comprises upper junction plate 1, top steel plate 2, corrosion resistant plate 3, and substructure comprises lower bevel steel plate 4, lower flat steel plate 5, bottom steel plate 6, lower connecting plate 7, polyfluortetraethylene plate 8.
The cross section of superstructure is the rectangle that has chute, and upper junction plate 1 fixes with the embedded board of superstructure respectively by high-strength bolt; The bottom of superstructure has that Open Side Down, and opening becomes large chute gradually, and three inclined-planes of chute are provided with corrosion resistant plate 3;
The cross section of substructure is comprised of integrally formed isosceles trapezoid and rectangle, and a right-angle side of the bottom surface of isosceles trapezoid and rectangle is isometric, and connects; The inclination angle of inclined plane that the bottom surface of isosceles trapezoid becomes with the isosceles limit is θ; The isosceles trapezoid of substructure and the runner position of superstructure and size coupling, be provided with lower bevel steel plate 4 on two isosceles limits of isosceles trapezoid, be provided with lower flat steel plate 5 on upper bottom surface, and lower bevel steel plate 4 and lower flat steel plate 5 centers fixedly are bonded with polyfluortetraethylene plate 8; The bottom of rectangle and lower connecting plate 7 welding, lower connecting plate 7 is fixedly connected with the embedded board in the lower bridge pier foundation by high-strength bolt simultaneously.
The utility model working mechanism is divided into three phases: not sliding phase, planar slide stage and inclined-plane sliding phase.When sliding phase not, horizontal force is smaller, by the stiction on plane, provides shearing; When horizontal force increases, the superstructure of bearing and substructure generation opposite planar are slided, but the inclined-plane of superstructure and substructure does not interact; When horizontal force continues to increase, the inclined-plane of bearing superstructure and substructure contacts concurrent looks to the changing of the relative positions, because the angle on inclined-plane, at this moment external force can will change the gravitional force of structure into, with this, provides restoring force.
The utility model bevel angle, slide plane friction factor, superstructure and substructure gap length affect the shock-resistance features of structure, these coefficients are by requirement and mechanical analysis calculative determination to bridge construction, the friction factor of other three slide planes can be different, research shows when different friction factor is adopted with inclined-plane in plane, the more effectively horizontal movement of structure under the Earthquake occurrence control effect.
Under the frequent load effects such as temperature, vehicular load, bearing, along planar slide, is provided by the top and the bottom gap length along bridge displacement longitudinally; Under geological process, when bridge displacement longitudinally reached the limit value of gap length, bearing transferred inclined-plane to by planar slide and slides, by the interaction dissipation seismic energy on inclined-plane, top and the bottom, at this moment external force can will change the gravitional force of structure into, with this, provides restoring force.
During Specific construction, first according to the good upper junction plate 1 of size design of bridge pier and bridge construction and the size of lower connecting plate 7, calculate according to the mechanical analysis to bridge construction, determine inclination angle of inclined plane θ, slide plane friction factor and gap length L, and then can design the size of top steel plate 2, bottom steel plate 6 and corrosion resistant plate 3, polyfluortetraethylene plate 8.Each steel plate, by being welded together, is bonded in polyfluortetraethylene plate 8 on lower bevel steel plate 4 and lower flat steel plate 5 afterwards.
In field-mounted process, upper junction plate 1, lower connecting plate 7 are connected with embedded board at the bottom of beam and the embedded board on bridge pier with high-strength bolt respectively, and install respectively the upper and lower of bearing, finally top and the bottom is linked together, and installs dust cover.
Claims (1)
1. novel many slide planes aseismatic bearing, comprise superstructure and substructure, it is characterized in that: superstructure comprises upper junction plate, top steel plate, corrosion resistant plate, and substructure comprises lower bevel steel plate, lower flat steel plate, bottom steel plate, lower connecting plate, polyfluortetraethylene plate;
The cross section of superstructure is the rectangle that has chute, and upper junction plate fixes with the embedded board of superstructure respectively by high-strength bolt; The bottom of superstructure has that Open Side Down, and opening becomes large chute gradually, and three inclined-planes of chute are provided with corrosion resistant plate;
The cross section of substructure is comprised of isosceles trapezoid and rectangle, and a right-angle side of the bottom surface of isosceles trapezoid and rectangle is isometric; Be provided with the lower bevel steel plate on two isosceles limits of isosceles trapezoid, be provided with the lower flat steel plate on upper bottom surface, and lower bevel steel plate and lower flat steel plate center fixedly are bonded with polyfluortetraethylene plate; Lower bevel steel plate and plane angle are θ; The isosceles trapezoid of substructure and the runner position of superstructure coupling, horizontal direction leaves the certain interval length L; The bottom of rectangle and lower connecting plate welding, lower connecting plate is connected by high-strength bolt with the embedded board in the lower bridge pier foundation simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202317229U CN203295967U (en) | 2013-05-02 | 2013-05-02 | Novel multi-sliding surface aseismatic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202317229U CN203295967U (en) | 2013-05-02 | 2013-05-02 | Novel multi-sliding surface aseismatic bearing |
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| Publication Number | Publication Date |
|---|---|
| CN203295967U true CN203295967U (en) | 2013-11-20 |
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| CN2013202317229U Expired - Fee Related CN203295967U (en) | 2013-05-02 | 2013-05-02 | Novel multi-sliding surface aseismatic bearing |
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| CN (1) | CN203295967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255708A (en) * | 2013-05-02 | 2013-08-21 | 浙江大学 | Novel multi-sliding-face aseismatic bearing |
| CN104831620A (en) * | 2015-05-08 | 2015-08-12 | 武汉理工大学 | Fixed-type aseismic noise reduction rubber support for rail transit bridge |
-
2013
- 2013-05-02 CN CN2013202317229U patent/CN203295967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255708A (en) * | 2013-05-02 | 2013-08-21 | 浙江大学 | Novel multi-sliding-face aseismatic bearing |
| CN104831620A (en) * | 2015-05-08 | 2015-08-12 | 武汉理工大学 | Fixed-type aseismic noise reduction rubber support for rail transit bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160502 |