CN202881846U - Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring - Google Patents
Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring Download PDFInfo
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- CN202881846U CN202881846U CN 201220513781 CN201220513781U CN202881846U CN 202881846 U CN202881846 U CN 202881846U CN 201220513781 CN201220513781 CN 201220513781 CN 201220513781 U CN201220513781 U CN 201220513781U CN 202881846 U CN202881846 U CN 202881846U
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Abstract
The utility model relates to a bridge vibration reduction support with combination of multiple variable-pitch springs and a rubber ring. The support comprises an upper base plate, a lower base plate, an annular rubber plate, an annular steel linear plate, an annular poly tetra fluoro ethylene sliding plate, a shearing bolt, the variable-pitch steel springs and the rubber ring. The shearing bolt is arranged on the upper base plate, the annular rubber plate, the annular steel linear plate, the annular poly tetra fluoro ethylene sliding plate and the lower base plate in a penetrating mode. The upper end and the lower end of the combination of the multiple variable-pitch steel springs and the rubber ring are respectively connected with the upper base plate and the lower base plate. The support can consume energy acted on a bridge when an earthquake occurs; when displacement in the horizontal direction occurs, the combination of the multiple variable-pitch springs and the rubber ring bears force together and enables the upper base plate and the lower base plate to move towards a central balanced position to achieve a self-restoration function by means of self characteristics, and restoration, maintenance and other work of a bridge structure after the earthquake are avoided; and meanwhile in daily traffic, when a vehicle passes a position of a retractable seam, the support performs a certain vertical vibration reduction function, reduces uncomfortable feelings of a driver and passengers, and prolongs service life of the vehicle and the bridge structure.
Description
Technical field
The utility model belongs to civil engineering, earthquake engineering, mechanical engineering technical field, is specifically related to a kind of novel bridge vibration damping holder of additional automatic runback device, particularly a kind of multi-disc pitches steel spring-rubber ring combined bridge vibration damping holder.
Background technology
In recent decades, vibration absorption and isolation support subtracts the important measures of shock insulation as bridge, has obtained increasing attention, and has obtained great development.Pot rubber bearing, lead core rubber support, FPS(friction pendulum hammer body system) progressively be widely used, and become the main flow of domestic and abroad bridge bearing.In several vibration absorption and isolation supports, pot rubber bearing because lacking automatic runback device between the upper and lower seat board, may produce excessive horizontal residual displacement when meeting with earthquake or great vibratility and impact, and difficulty resets after the shake; The lead core rubber support energy dissipation capacity is strong, the order of seats internal force that temperature, the deformation of creep such as creep cause is less, but the cutting performance of bearing is subjected to the impact of vertical load larger, and the increase along with lead for retractable pencil, the bearing automatic recovery ability weakens gradually, can not effectively subtract shock insulation in the earthquake motion with multiple spectra effect; FPS(friction pendulum hammer body system) automatic recovery ability is strong, the friction energy-dissipating stable performance, but can cause the vertical displacement of beam-ends and produce time internal force in the process of friction energy-dissipating.Chinese utility model patent ZL200920212009.3 has announced a kind of inhaul cable damping support saddle.The anchoring between upper and lower seat board of this technical scheme, is shifted at upper and lower seat board and plays the buffer limit effect when excessive after shearing bolt fracture with guy of twisted steel cable, the restriction bearing up and down the relative displacement between the seat board within a controlled scope.
But for above-mentioned benzvalene form or ball steel support, the self-resetting capability of bearing is poor, and at the geological process undersetting beam that falls easily, often needs after the geological process the bearing work that resets; Inhaul cable damping support saddle is compared above-mentioned bearing certain improvement, but still come with some shortcomings, drag-line leaves certain free slack when design, when strong earthquakes occurs, shearing bolt is cut off, and bearing up and down seat board begins to occur relative displacement, after displacement surpasses the drag-line free path, drag-line begins to play a role, and the restriction bearing up and down relative displacement between the seat board is excessive; In such cases, bearing can produce certain residual displacement after violent earthquake, and namely bearing when therefore repairing after shake, must use additive method that bearing is adjusted on the vertical line of center not on a plumb line in the seat board center up and down.Therefore, be necessary the bearing in the prior art is done further to improve, realize automatically reseting of bearing, the maintenance work after the minimizing shake.
When vehicle passed through the bridge expanssion joint position, because the variation of place, the shrinkage joint rigidity of structure, the vehicle generation was beated and is jolted, and driver and crew are not felt well, and simultaneously Vehicle damper system and bridge construction is also brought certain infringement.Above-mentioned bearing, the vibration that produces during by bridge for vehicle does not have effectiveness in vibration suppression substantially.
Summary of the invention
The purpose of this utility model be to provide a kind of not only can be by the sliding friction earthquake energy under geological process, reduce earthquake to the effect of structure, and can after shake, automatically reset, can in daily traffic, reduce in addition the multi-disc pitches steel spring of axle vibraqtions-rubber ring combined bridge vibration damping holder.
For reaching above purpose, the solution that the utility model adopts is: in the time of fully according to the advantage that displacement capacity is large, stress performance is more stable of common pot bearing or ball steel support, at bearing multi-disc pitches steel spring-rubber ring combination is set between the seat board up and down.The pitches steel spring can adopt multiple arrangement form in this combination, and purpose is to make bearing up and down during the displacement of seat board generation relative level, and the firm elasticity of spring horizontal direction and the rubber ring that sulfides can provide restoring force for resetting of top girder construction.
Under geological process, bearing can slide, friction energy-dissipating, the girder that multi-disc pitches steel spring when bearing departs from-the rubber ring combination can provide restoring force to make bridge can effectively reset with the geological process rear support in the mechanism of earthquake and substantially not depart from, thereby ensures the traffic capacity after the bridge shake; Simultaneously under geological process, the up and down relative displacement that the combination of multi-disc pitches steel spring-rubber ring will limit bearing (change in displacement ability can according to require design) within certain scope, effectively prevent fall this common seismic damage form of beam of geological process underbeam body, and because the existence of multi-disc pitches steel spring-rubber ring combined horizontal rigidity, the impact force between the seat board is effectively cushioned up and down.Thereby ensure the traffic capacity after earthquake disaster of this lifeline engineering, sound assurance is to the work such as rescue in disaster area.
In daily traffic, be arranged on bearing up and down the multi-disc pitches steel spring-rubber ring between the seat board be combined in vertical prepressing deformation, provide certain supporting role to the seat supports superstructure, when vehicle passes through, can bring into play certain vertical damping property, weaken driver and crew's sense of discomfort, reduce the infringement of vehicle and bridge construction, prolong the application life of vehicle and bridge construction.
Accordingly, the multi-disc pitches steel spring that the utility model proposes-rubber ring combined bridge vibration damping holder, comprise lower seat board, the upper base plate with chamber and be stacked and placed on successively described ring-shaped rubber plate, annular steel liner plate and the annular tetrafluoro slide plate in the chamber from bottom to top, also include shearing bolt, multi-disc pitches steel spring and rubber ring; Described shearing bolt passes upper base plate, annular tetrafluoro slide plate, annular steel liner plate, ring-shaped rubber plate and lower seat board from top to bottom successively, and its top is fixed on the upper base plate, and the bottom is fixed on the lower seat board; The shearing bolt middle and upper part consists of with the constriction state has a sheared edge, the position of sheared edge to be positioned at the contact surface of described annular steel liner plate and annular tetrafluoro slide plate; Described multi-disc pitches steel spring is positioned at outside the chamber, and its every pitches steel spring top and upper base plate connect, bottom and the connection of lower seat board.
In the utility model, the number of springs of described multi-disc pitches steel spring is the n sheet, and wherein: n 〉=3, corresponding upper base plate, lower seat board upper horizontal plane have n anchoring contact point, are minute distributions such as circumference n.
In the utility model, described multi-disc pitches steel spring is interted together in upright plane successively by pitches steel bomb reed I, pitches steel bomb reed II, pitches steel bomb reed III, pitches steel bomb reed I, pitches steel bomb reed II, pitches steel bomb reed III is that spring outer diameter equates up and down, or the two ends spring outer diameter is little, the mid portion spring outer diameter is large.
In the utility model, described pitches steel spring is provided with rubber ring outward, and described displacement steel spring and rubber ring form one.
In the utility model, described pitches steel bomb reed I, pitches steel bomb reed II, the spring silk cross section of pitches steel bomb reed III is the square-section.
In the utility model, described pitches steel bomb reed I, pitches steel bomb reed II, the pitch of pitches steel bomb reed III changes, the ascending unidirectional array of pitch, or large according to two ends, middle little bi-directional arrangement, or according to bi-directional arrangement small in ends, broad in the middle.
In the utility model, be provided with sealing ring between ring-shaped rubber plate and the annular steel liner plate.
In the utility model, during use, this multi-disc pitches steel spring-rubber ring combined bridge vibration damping holder is fixed by the bolt that passes four bight bolts hole of lower seat board and the built-in fitting on the bridge pier, is fixed by the built-in fitting of the bolt that passes four bight bolts hole of upper base plate and girder bottom.
The advantage of the technical scheme that the utility model provides:
1) existence of multi-disc pitches steel spring-rubber ring combination has reduced the relative displacement of top and the bottom structures effectively, thereby reduces dynamic magnification factor, reduces the seismic response of structure.
2) make up common limiting displacement by multi-disc pitches steel spring-rubber ring, so that the bearing displacement is within certain scope, thereby effectively prevent from falling under the geological process this common earthquake disaster of beam.
3) multi-disc pitches steel spring-rubber ring combination relies on self-characteristic, jointly plays a role, and seat board moves towards the equilbrium position, center about making after shake, reaches the Self-resetting function, and the single-leaf spring of comparing is stressed more evenly rationally.
4) the spring silk cross section of pitches steel spring is rectangle, can well solve bearing in the narrow and small problem of vertical direction spatial, simultaneously can be by the axial rigidity of adjustment square-section size regulating spring and the ratio of lateral rigidity.
5) pitch variation of pitches steel spring can adapt to larger horizontal movement.
6) combination of multi-disc pitches steel spring-rubber ring is carried out positive connection with seat board up and down respectively, vertically can be subjected to displacement equally the support damage phenomenon that produces in the time of therefore can preventing Vertical Earthquake Loads.
7) rubber ring and steel spring sulfide, and the restoring force of part not only itself can be provided, and can be used as the use of bearing internal construction dust cover.
8) in daily traffic, when vehicle passed through the position, shrinkage joint, the vertical damping property that the bearing performance is certain weakened driver and crew's sense of discomfort, reduces the infringement of vehicle and bridge construction, prolonged the application life of vehicle and bridge construction.
In a word, the utility model is applicable on the building of railway bridge, road bridge, urban viaduct and various large-scale suspension frame structures and so on, plays damping effect.
Description of drawings
Fig. 1 is that the axle that waits of the present utility model is surveyed view.
Fig. 2 be the utility model level to enforcement package assembly diagram.
Fig. 3 is forward sight section plan of the present utility model.
Fig. 4 is that the axle that waits of the present utility model is surveyed the view sectional view.
Number in the figure: 1 is lower seat board, and 2 is the ring-shaped rubber plate, and 3 is sealing ring, 4 is annular steel liner plate, and 5 is annular tetrafluoro slide plate, and 6 is upper base plate, 7 is shearing bolt, and 8 is sheared edge, and 9 is pitches steel bomb reed I, 10 is pitches steel bomb reed II, 11 is pitches steel bomb reed III, and 12 is lower seat board bolt, and 13 is the upper base plate bolt, 14 is the seat chamber, and 15 is rubber ring.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant will be below elaborates by reference to the accompanying drawings in the mode of embodiment.
Embodiment 1: ask for an interview Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the lower seat board 1 of a rectangle is fixed with the bridge pier of bridge under the use state, and seat board bolt 12 is fixed lower seat board 1 and the built-in fitting on the bridge pier under using in four bights of lower seat board 1 for this reason.Lower seat board 1 towards on the central authorities of a side hollow out the seat chamber 14 that is formed with a ring-type, in this chamber 14, set gradually from bottom to up ring-shaped rubber plate 2, annular steel liner plate 4, annular tetrafluoro slide plate 5.Wherein, between ring-shaped rubber plate 2 and annular steel liner plate 4, be provided with sealing ring 3.Shearing bolt 7 is located in aforesaid upper base plate 6, annular tetrafluoro slide plate 5, annular steel liner plate 4, ring-shaped rubber plate 2 and lower seat board 1 successively.The middle and upper part of shearing bolt 7 consists of the contact surface that has a sheared edge 8, the position of sheared edge 8 to be positioned at substantially aforesaid annular steel liner plate 4 and annular tetrafluoro slide plate 5 with constriction state ground.
The upper base plate 6 of one rectangle, fixing with the girder bottom surface (the beam body that also claims bridge) of bridge under the use state, upper base plate 6 and girder bottom surface are fixed with upper base plate bolt 13 in four bights of upper base plate 6 for this reason.
As the pitches steel bomb reed I 9 of one of technical essential of the present utility model, pitches steel bomb reed II 10, pitches steel bomb reed III 11 are interted together successively, and its every pitches steel spring upper end is fixing with upper base plate 6, and lower end and lower seat board 1 are fixing; 3 pitches steel springs are being fixed on upper base plate 6, the lower seat board 1 according to circumference 3 form-separatings such as grade on the upper and lower end parts plane; The cross section of 3 pitches steel springs is rectangle; The pitch of spring is large according to two ends, middle little bi-directional arrangement.
As the rubber ring 15 complete and pitches steel bomb reed I 9 of one of technical essential of the present utility model, pitches steel bomb reed II 10, pitches steel bomb reed III 11 sulfides, and planar is annular cross section.
Under the normal condition before earthquake occurs, because the effect of shearing bolt 7, upper base plate 6, lower seat board 1 are coupled as one, thereby make the multi-disc pitches steel spring of the utility model structure-rubber ring combined bridge vibration damping holder show as the form of fixed bearing, namely by the horizontal movement between shearing bolt 7 constraint upper base plates 6, the lower seat board 1.Yet when earthquake occured, aforesaid horizontal force was during greater than the shear strength of the sheared edge 8 of shearing bolt 7, and shearing bolt 7 is just cut off, and falls into the surely default groove of bridge pier.As seen, shearing bolt 7 plays the effect of two aspects, and the one, can consume the portion of energy that causes upper base plate 6,1 horizontal movement of lower seat board that earthquake causes, thus the protection bridge; The 2nd, because shearing bolt 7 disconnects, removed the constraint to upper base plate 6, lower seat board 1, the character that makes bearing is multidirectional freely movable bearing transition from previous fixed bearing.Certainly, the power of the sheared edge 8 tolerance fractures of shearing bolt 7 obtains by designing and calculating according to mechanics principle.In addition, after shearing bolt 7 disconnects, bearing is to a lateral movement, pitches steel bomb reed I 9, pitches steel bomb reed II 10, pitches steel bomb reed III 11 and rubber ring 15 deform jointly, multi-disc pitches steel spring-rubber ring combinatorial association is spacing, avoid the effect of being cut that withstands shocks separately of monolithic pitches steel spring, strengthened shock resistance, meanwhile, multi-disc pitches steel spring-rubber ring combination relies on the recovery characteristic of self, seat board moves towards the equilbrium position, center about making after shake, has so just reached the function of Self-resetting.
As a kind of conversion of the utility model embodiment, can adopt pot bearing, spherical bearing with the bearing that multi-disc pitches steel spring-the rubber ring composite set cooperates, also can adopt other types and index.
As a kind of conversion of the utility model embodiment, can adopt described fixed bearing with shearing bolt with the bearing that multi-disc pitches steel spring-the rubber ring composite set cooperates, also can be set directly in the sliding support.
As another conversion of the utility model embodiment, described multi-disc pitches steel spring can be that spring outer diameter equates up and down, or the two ends spring outer diameter is little, the middle springs external diameter is large.
Another conversion as the utility model embodiment, describedly be arranged on up and down that the pitches steel spring quantity basis mechanics as resetting means needs to be n sheet (n 〉=3) between the seat board, distribution form is to intert successively in the upright plane to arrange, at seat board upper horizontal plane up and down n anchoring contact point arranged, be minute distributions such as circumference n.
As another conversion of the utility model embodiment, all can adjust according to the design needs as the intensity of spring wire sectional dimension, spring outer diameter, spring inside diameter, mean diameter of coil, pitch, the support number of turns, number of total coils and the manufactured materials of multi-disc pitches steel spring, modulus of elasticity etc.
The above-mentioned description to embodiment all is not the restriction to the utility model scheme; therefore; protection domain of the present utility model not only is confined to above-described embodiment; anyly only all should be considered as dropping within the protection domain of the present utility model for pro forma but not substantial various modification and improvement according to what the utility model design had been done.
Claims (7)
1. multi-disc pitches steel spring-rubber ring combined bridge vibration damping holder, comprise lower seat board (1), the upper base plate (6) with chamber (14) and be stacked and placed on successively described seat chamber (14) interior ring-shaped rubber plate (2), annular steel liner plate (4) and annular tetrafluoro slide plate (5) from bottom to top, it is characterized in that: also include shearing bolt (7), multi-disc pitches steel spring and rubber ring (15); Described shearing bolt (7) passes upper base plate (6), annular tetrafluoro slide plate (5), annular steel liner plate (4), ring-shaped rubber plate (2) and lower seat board (1) from top to bottom successively, its top is fixed on the upper base plate (6), and the bottom is fixed on the lower seat board (1); Shearing bolt (7) middle and upper part consists of the contact surface that has a sheared edge (8), the position of sheared edge (8) to be positioned at described annular steel liner plate (4) and annular tetrafluoro slide plate (5) with the constriction state; Described multi-disc pitches steel spring is positioned at outside the chamber (14), and its top and upper base plate (6) connect, and bottom and lower seat board (1) connect.
2. multi-disc pitches steel spring according to claim 1-rubber ring combined bridge vibration damping holder, the number of springs that it is characterized in that described multi-disc pitches steel spring is the n sheet, wherein: n 〉=3, corresponding upper base plate (6), lower seat board (1) upper horizontal plane have n anchoring contact point, are minute distributions such as circumference n.
3. multi-disc pitches steel spring according to claim 2-rubber ring combined bridge vibration damping holder, it is characterized in that described pitches steel spring is interted together in upright plane by pitches steel bomb reed I (9), pitches steel bomb reed II (10) and pitches steel bomb reed III (11), pitches steel bomb reed I (9), pitches steel bomb reed II (10), pitches steel bomb reed III (11) is that spring outer diameter equates up and down, or the two ends spring outer diameter is little, the mid portion spring outer diameter is large.
4. multi-disc pitches steel spring according to claim 1-rubber ring combined bridge vibration damping holder is characterized in that described pitches steel spring is provided with rubber ring (15) outward, and described displacement steel spring and rubber ring (15) form one.
5. multi-disc pitches steel spring according to claim 3-rubber ring combined bridge vibration damping holder, it is characterized in that described pitches steel bomb reed I (9), pitches steel bomb reed II (10), the spring silk cross section of pitches steel bomb reed III (11) is the square-section.
6. multi-disc pitches steel spring according to claim 3-rubber ring combined bridge vibration damping holder, it is characterized in that described pitches steel bomb reed I (9), pitches steel bomb reed II (10), the pitch of pitches steel bomb reed III (11) changes, the ascending unidirectional array of pitch, or large according to two ends, middle little bi-directional arrangement, or according to bi-directional arrangement small in ends, broad in the middle.
7. multi-disc pitches steel spring according to claim 1-rubber ring combined bridge vibration damping holder is characterized in that being provided with sealing ring (3) between ring-shaped rubber plate (2) and the annular steel liner plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513781 CN202881846U (en) | 2012-10-09 | 2012-10-09 | Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513781 CN202881846U (en) | 2012-10-09 | 2012-10-09 | Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring |
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| Publication Number | Publication Date |
|---|---|
| CN202881846U true CN202881846U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513781 Expired - Lifetime CN202881846U (en) | 2012-10-09 | 2012-10-09 | Bridge vibration reduction support with combination of multiple variable-pitch steel springs and rubber ring |
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| CN (1) | CN202881846U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064205A (en) * | 2015-08-25 | 2015-11-18 | 中铁大桥局武汉桥梁特种技术有限公司 | Spherical bearing |
| CN107642033A (en) * | 2017-08-11 | 2018-01-30 | 南昌大学 | One group of function divergence type combined isolator system and its construction method |
| CN108953449A (en) * | 2018-09-27 | 2018-12-07 | 丰和营造集团股份有限公司 | A kind of novel spring structure shock absorber |
| CN109024708A (en) * | 2018-07-09 | 2018-12-18 | 天津城建大学 | A kind of isolation mounting for building and subway upper cover vertical vibration isolation wave building structure |
| CN109235245A (en) * | 2018-10-29 | 2019-01-18 | 中北大学 | A kind of self-restoring lead core rubber earthquake isolation support |
| CN109823390A (en) * | 2019-01-31 | 2019-05-31 | 东风柳州汽车有限公司 | Energy-absorbing device for vehicle collision |
| CN110184904A (en) * | 2019-06-24 | 2019-08-30 | 浙江海洋大学 | A kind of novel beam bridge energy-absorbing shock mount |
| CN110984068A (en) * | 2019-12-23 | 2020-04-10 | 哈尔滨工业大学 | Anti-seismic composite height-adjustable steel support for high-pile wharf |
| CN113931017A (en) * | 2020-06-29 | 2022-01-14 | 比亚迪股份有限公司 | Support and traffic track system of track roof beam |
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2012
- 2012-10-09 CN CN 201220513781 patent/CN202881846U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064205A (en) * | 2015-08-25 | 2015-11-18 | 中铁大桥局武汉桥梁特种技术有限公司 | Spherical bearing |
| CN107642033A (en) * | 2017-08-11 | 2018-01-30 | 南昌大学 | One group of function divergence type combined isolator system and its construction method |
| CN109024708A (en) * | 2018-07-09 | 2018-12-18 | 天津城建大学 | A kind of isolation mounting for building and subway upper cover vertical vibration isolation wave building structure |
| CN109024708B (en) * | 2018-07-09 | 2023-09-19 | 天津城建大学 | Vibration isolation device for building and vertical vibration isolation swing building structure of subway upper cover |
| CN108953449A (en) * | 2018-09-27 | 2018-12-07 | 丰和营造集团股份有限公司 | A kind of novel spring structure shock absorber |
| CN108953449B (en) * | 2018-09-27 | 2024-05-24 | 丰和营造集团股份有限公司 | Novel spring structure shock absorber |
| CN109235245A (en) * | 2018-10-29 | 2019-01-18 | 中北大学 | A kind of self-restoring lead core rubber earthquake isolation support |
| CN109823390A (en) * | 2019-01-31 | 2019-05-31 | 东风柳州汽车有限公司 | Energy-absorbing device for vehicle collision |
| CN110184904A (en) * | 2019-06-24 | 2019-08-30 | 浙江海洋大学 | A kind of novel beam bridge energy-absorbing shock mount |
| CN110184904B (en) * | 2019-06-24 | 2020-12-11 | 浙江海洋大学 | Novel beam bridge energy-absorbing shock-absorbing support |
| CN110984068A (en) * | 2019-12-23 | 2020-04-10 | 哈尔滨工业大学 | Anti-seismic composite height-adjustable steel support for high-pile wharf |
| CN113931017A (en) * | 2020-06-29 | 2022-01-14 | 比亚迪股份有限公司 | Support and traffic track system of track roof beam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |