CN204282204U - Subtract shock insulation drag link bearing - Google Patents
Subtract shock insulation drag link bearing Download PDFInfo
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- CN204282204U CN204282204U CN201420702164.4U CN201420702164U CN204282204U CN 204282204 U CN204282204 U CN 204282204U CN 201420702164 U CN201420702164 U CN 201420702164U CN 204282204 U CN204282204 U CN 204282204U
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- pull bar
- bearing
- top board
- shock insulation
- circular hole
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Abstract
The utility model provides one to subtract shock insulation drag link bearing, mainly solves sudden change impact that existing fixed or active type vibration absorption and isolation support exist and the wider technical problem of the margin of tolerance.The technical solution of the utility model is: subtract shock insulation drag link bearing, based on a kind of one-way spherical steel support, it is characterized in that: the top board of one-way spherical steel support be embedded in base both sides a pair block between, realize unidirectional horizontal movement using block as guiding; Described top board is one piece of flat board in I shape; Four top board wing tips of top board respectively reserve one along bridge to circular hole, on described block also individual reserve one along bridge to circular hole, the circular hole coaxial on the circular hole of top board wing tip and block and be parallel to the main displacement direction of bearing; Circular hole on the circular hole and block of top board wing tip is installed with pull bar, is provided with ground tackle at the two ends of pull bar and centre.The utility model is mainly used in bridge seismic isolation design, prevents or alleviates bridge earthquake.
Description
Technical field
The utility model relates to the supporting arrangement of bridge or building structure, particularly a kind ofly can alleviate earthquake and subtracts shock insulation drag link bearing to bridge collapse ability.
Background technology
Bridge can divide into substructure and superstructure two large divisions usually, and upper and lower two-part structure relies on bearing and connects.So the seismic measures of bridge, bearing just becomes a node merited attention.The precautions against earthquakes of bridge or other works, object is to prevent or alleviate the destruction that earthquake brings structure.Early stage employing be strengthen the globality of structure, adopt the way firmly shouldered, structure can be collapsed, but can not fall apart.Thereafter, along with research is goed deep into, what find employing flexibility dissolves means, more economical.So-called flexibility is dissolved, and is exactly in the transmittance process of seismic forces in structure, arranges the node of some flexibilities, delay, reduces or cut off the transmission of seismic forces, thus ensure that the safety of structure, the loss of minimizing life and property.
Bearing on bridge, except being used for transmitting upper load to bottom pier, platform, and adapting to outside limited corner, allowing that the function bearing horizontal movement is divided into 3 classes by it.A class, fixed bearing, usual code name is GD, this kind of bearing along bridge to and direction across bridge do not allow the relative horizontal displacement occurred between the upper and lower two parts of bearing, can be used for bearing Yin Wendu, the horizontal force that car brakeing brings; B class, one-way movable support, usual code name is DX, and this kind of bearing is only allowed and occurred relative horizontal displacement at assigned direction, occurs the direction of horizontal movement, then can bear horizontal force in restriction; C class, bi-directional movable bearing, usual code name is SX, and this kind of bearing can occur displacement in any horizontal direction, but can not be used for bearing horizontal loading (, for ease of statement, temporarily omitting the impact of original frictional resistance here).
For four-span continuous beams beam, centre is braking pier, and pier configures 1 fixed bearing GD and 1 side direction freely movable bearing DX, on all the other piers, at the suitable bridge of GD side configuration to one-way movable support DX, at opposite side configuration bi-directional movable bearing SX.Configuration like this, the DX all installed by the fixed bearing GD on braking pier and side direction to horizontal force along bridge bears, and remaining freely movable bearing then assume responsibility for the coordination of horizontal movement, prevents thermal stresses.
In usual situation, this bearing allocation plan can meet the demands completely, but runs into earthquake, just there will be some problems.Earthquake brings horizontal earthquake power to bridge, and its numerical value is much larger than vehicle braking force, if seismic forces is all assigned on unique braking pier, even if bearing can bear, bridge pier also corresponding reinforcing.In order to seek the antidetonation scheme of an economical rationality, researching and developing at present, employing multiple seismic isolation device.This kind of device, has plenty of the viscid characteristic utilizing the material therefor of bearing own, also has plenty of the bending resistance or shear behavior that utilize support part steel, be called as monolithic devices seismic isolation device, such as: lead core rubber support, high-damp rubber support, friction pendulum vibration absorption and isolation support.Have plenty of outside general bearing, add various damper more in addition, be called divergence type seismic isolation device, this kind of device has: neoprene bearing+metal damper, neoprene bearing+frcition damper, neoprene bearing+sticky stuff damper.Utilize this device, can prevent fixed bearing or braking pier from bearing the horizontal force transfinited, in earthquake, also automatically can improve the horizontal resist forces of freely movable bearing, make full use of the antidetonation potential of all the other piers under continuous beam.
Friction pendulum vibration absorption and isolation support and other similar device, vibration absorption and isolation support based on spherical steel support, there are two kinds of mode of operations: normally use mode of operation and subtract shock insulation mode of operation, what is called normally uses mode of operation, the performance of bearing and aforementioned fixed bearing, one-way support, bilateral support is as good as, as once enter and subtract shock insulation mode of operation, the function of bearing just and normally uses mode of operation completely different, fixed bearing originally also can be allowed and occurred horizontal displacement, freely movable bearing originally, when producing horizontal displacement, its resistance is except original relatively little critical slip circle frictional force, also other drag can be increased.Thus and thus, in continuous beam system, the horizontal resist forces of braking pier upper bracket will be shared on all bearings, thus has played the potential of the antiseismic horizontal force of non-brake pier, receives the effect avoiding and alleviate earthquake.
Allly this kind ofly subtract shock insulation steel support, the transformation of its mode of operation based on spherical steel support, all need a shot point.
Current finding, for fixed vibration absorption and isolation support wherein, shot point is generally from shearing resistance bearing pin set in the holder, and when shearing resistance bearing pin is cut off by the horizontal earthquake power transfinited, fixed bearing enters and subtracts shock insulation mode of operation, becomes a kind of freely movable bearing.For active type vibration absorption and isolation support wherein, be configured to example with what apply more friction pendulum freely movable bearing at present, then need horizontal movement and this two indices of seismic forces to transfinite, shearing bearing pin could be cut off, and enters and subtracts shock insulation mode of operation simultaneously.
For the fixed vibration absorption and isolation support based on spherical steel support, once shearing bearing pin is cut off, bearing pin to the drag pop-off of horizontal movement, the critical slip circle frictional force F of the remaining just horizontal friction pair of bearing
max, specify by related specifications " Seismic Design of Highway Bridges detailed rules and regulations " JTG/T B02-01-2008, F
max=0.02R, wherein the superstructure gravity born for bearing of R, 0.02 is the coefficient of sliding friction, F
maxnumerical value smaller comparatively speaking.Namely, after shearing resistance bearing pin is cut off, the fixed vibration absorption and isolation support of shearing resistance pivot pin is used immediately to change simple freely movable bearing into.In this process, falling as the cliff of displacement appears in the displacement-resistance curve of bearing, occurs impacting.
So some scholars are by this salvo that transfinites--shearing resistance bearing pin, and regard to visualization the device for fusing in a kind of similar power circuit as, the simplest device for fusing is exactly the fuse be commonly called as.Electric current overloading, blown fuse, its electric power facility below, all dark.European Committee for Standardization, in " damping, earthquake isolating equipment " standard EN 15129-2009, cuts off to pivot pin the limit tolerance range that load specifies to be recommended as ± 15%, and it seems that this margin of tolerance be larger.
For the active type vibration absorption and isolation support based on spherical steel support, also there are some uncertain factors.Mainly be: process is determined in getting of active type bearing permissible level shift value.This index is expressed with ± millimeter value usually, mainly refer to when the highest extreme and extreme minimum temperature, compare with average temperature, the relative horizontal displacement amount that the upper and lower two parts of bearing may occur, in order to ensure safety, an amplification coefficient also can be increased, the calculating of this respect when calculating, can see the related Sections of " highway reinforced concrete and prestressed concrete bridge contain design specifications " JTGD62-2004.And in relevant seat standard, bearing allowed that activity defines again different stepping ladders, " highway bridge pot bearing " JT/T 391-2009 and " spherical bearing for bridge " GBT 17955-2009, the suitable bridge of freely movable bearing all specifies by ± 50mm stepping to activity, be divided into 6 grades, step to ± 300mm step by step by ± 50mm." highway bridge friction pendulum vibration absorption and isolation support " JT/T 852-2013 more relaxes as activity is by ± 100mm stepping, and by ± 100mm, points 4 grades step to ± 400mm.When calculating the activity of bearing by amplification of raising the price again and again, and when adopting bearing, carry out again once broad-brush leap.So last selected bearing, it is almost impossible that its horizontal movement value in normal operation process exceedes selected admissible value.Whether can occur so 2 conditions of active type friction pendulum vibration absorption and isolation support working mode change-activity arrival limit value and horizontal earthquake power arrive extreme value simultaneously, be worth inquiring into again.
More satisfactory vibration absorption and isolation support, the transfer process of its mode of operation, one should be horizontal resist forces steady-state growth, but its upper limit is limited, like the outlet valve that gasholder in air compression plant fills above, specify air pressure greatly when air gauge arrives, outlet valve is opened, keep pressure stability, instead of by gasholder emptying.Its two, the margin of tolerance of transfer point should reduce as far as possible and narrow.Its three, the component damaged after earthquake should be convenient to change.
Summary of the invention
The purpose of this utility model is to provide a kind of monolithic devices seismic isolation device-subtract shock insulation drag link bearing, mainly solves sudden change impact that existing fixed or active type vibration absorption and isolation support exist and the wider technical problem of the margin of tolerance.The utility model is mainly used in bridge seismic isolation design, prevents or alleviates bridge earthquake.
The technical solution of the utility model is: subtract shock insulation drag link bearing, based on a kind of one-way spherical steel support, it is characterized in that: the top board of one-way spherical steel support be embedded in base both sides a pair block between, realize unidirectional horizontal movement using block as guiding;
Described top board is one piece of flat board in I shape; Four top board wing tips of top board respectively reserve one along bridge to circular hole, on described block also individual reserve one along bridge to circular hole, the circular hole coaxial on the circular hole of top board wing tip and block and be parallel to the main displacement direction of bearing; Circular hole on the circular hole and block of top board wing tip is installed with pull bar, is provided with ground tackle at the two ends of pull bar and centre.
The cross section of described pull bar is rounded; Described ground tackle has two profiles number: closed type and open type.At the end of pull bar and middle installation closed type ground tackle, the type of being fixed subtracts shock insulation drag link bearing; Install closed type ground tackle at pull bar two ends, middle installation open type ground tackle, obtains one-way movable type and subtracts shock insulation drag link bearing;
Leave the gap of 2 ~ 3mm at block and the top board place of being abutted against, can allow that bearing adapts to a small amount of horizontal movement of direction across bridge; The axis of pull bar and the status of a sovereign of bearing move axis being parallel.
The back taper bench-type anchor snare of described closed type ground tackle is on pull bar, the intermediate plate mated with anchor circle external surface is pressed into anchor circle, the casing being fixed on aperture is provided with outside anchor circle, casing rear end is provided with bonnet, hole back-up ring is provided with outside bonnet, inside bonnet, be provided with indent pressing plate with intermediate plate end, spring housing snaps in pressing plate on pull bar.
The back taper bench-type anchor snare of described open type ground tackle is on pull bar, the intermediate plate mated with anchor circle external surface is pressed into anchor circle, the casing being fixed on aperture is provided with outside anchor circle, back-up ring is provided with in the centre of casing, back-up ring and casing are fixed by alignment pin, casing rear end is provided with bonnet, hole back-up ring is provided with outside bonnet, rear fender and the front pressuring plate of indent is provided with inside bonnet and outside back-up ring, spring housing snaps in the groove of front pressuring plate and rear fender on pull bar, in front pressuring plate, back-up ring and the perforate of intermediate plate end, three is connected and fixed by intermediate plate connecting rod.
The beneficial effects of the utility model are: the utility model starting point cancels shearing resistance pivot pin, improve vibration absorption and isolation support at conventional operational patten transformation to sensitivity when subtracting shock insulation mode of operation and the degree of accuracy, also solve after in earthquake, shearing resistance bearing pin is cut off simultaneously, the horizontal resist forces of bearing is after losing the shearing resistance of bearing pin, drop into the initial sliding frictional force of horizontal friction pair in bearing instantaneously, displacement resistance curve occurs that cliff of displacement formula is fallen, and brings the problem of impact.During the utility model pull bar vibration absorption and isolation support working mode change, the horizontal resist forces of bearing can not fall suddenly, but raises steadily.Need the parts changed to be only be positioned at bearing both sides, visual visible, just palp pull bar of raising one's hand after shake, more change jobs very convenient, do not need jack-up superstructure completely.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation front view.
Fig. 2 is that figure cuts open in the utility model embodiment 1 structural representation office of overlooking.
Fig. 3 is that half sectional drawing is looked on the utility model embodiment 1 structural representation left side.
Fig. 4 is the utility model embodiment 2 structural representation front view.
Fig. 5 is that figure cuts open in the utility model embodiment 2 structural representation office of overlooking.
Fig. 6 is that half sectional drawing is looked on the utility model embodiment 2 structural representation left side.
Fig. 7 is the utility model closed type anchor device structure schematic section.
Fig. 8 is the utility model open type anchor device structure schematic section.
In figure: 1-top board, 1-1-top board wing tip, 2-base, 2-1-block, 3-pull bar, the spherical liner plate of 4-, 5-sphere antifriction plate, 6-plane antifriction plate, 7-ground tackle, 7-1-anchor circle, 7-2-intermediate plate, 7-3-front pressuring plate, 7-4-spring, 7-5-casing, 7-6-bonnet, 7-7-hole back-up ring, 7-8-rear fender, 7-9-back-up ring, 7-10-intermediate plate connecting rod, 7-11-alignment pin.
Detailed description of the invention
embodiment 1with reference to Fig. 1,2,3,7, fixed subtracts shock insulation drag link bearing, based on a kind of one-way spherical steel support, base 2, spherical antifriction plate 5, spherical liner plate 4, plane antifriction plate 6 are assembled routinely, the top board 1 of one-way spherical steel support be embedded in base 2 both sides a pair block 2-1 between, top board 1 realizes unidirectional horizontal movement using block 2-1 as guiding, described top board 1 is one piece of flat board in I shape, four top board wing tip 1-1 of top board respectively reserve one along bridge to circular hole, on described block 2-1 also individual reserve one along bridge to circular hole, the circular hole coaxial on the circular hole of top board wing tip and block and be parallel to the main displacement direction of bearing, circular hole on the circular hole and block of top board wing tip is installed with pull bar 3, middle and the two ends installation closed type ground tackle at pull bar 3, the back taper bench-type anchor circle 7-1 of described closed type ground tackle is enclosed within pull bar 3, the cross section of described pull bar 3 is rounded, the intermediate plate 7-2 mated with anchor circle 7-1 external surface is pressed into anchor circle, the casing 7-5 being fixed on aperture is provided with outside anchor circle, casing rear end is provided with bonnet 7-6, hole back-up ring 7-7 is provided with outside bonnet, be provided with rear fender 7-8 and the front pressuring plate 7-3 of indent with intermediate plate end inside bonnet, spring 7-4 is enclosed within groove pull bar 3 snapping in front pressuring plate and rear fender.Leave the gap of 2 ~ 3mm at block 2-1 and top board 1 place of being abutted against, can allow that bearing adapts to a small amount of horizontal movement of direction across bridge.The axis of pull bar 3 and the status of a sovereign of bearing move axis being parallel.
Ground tackle casing 7-5 in the middle of pull bar will push against the aperture of base block 2-1, and the ground tackle casing 7-5 of tie rod end will push against the aperture of top board wing tip 1-1.After pull bar 3 and ground tackle 7 so install, along the relative horizontal position in pull bar direction between top board 1 and base 2, fix by the normally closed ground tackle on pull bar, so what obtain is be exactly that fixed subtracts shock insulation drag link bearing.
During earthquake, once there is relative horizontal displacement in the upper and lower two parts of bearing, block 2-1 can promote ground tackle 7 to the left or to the right.As block 2-1 first promotes C place, right side ground tackle 7 to the right, this part pull bar AC section between ground tackle 7C place, right side to pull bar left end ground tackle A place just bears pulling force, and the CD section pull bar on the right side of block does not just meet with stresses.If the pulling force suffered by pull bar AC section does not exceed the yield stress of pull bar steel, then AC section pull bar is in elastic stage, and its elastic elongation amount roughly can not more than 0.12%, and naked eyes are generally difficult to observe, thus bearing show as fixed bearing; If the pulling force that during earthquake, block comes to pull bar AC length of tape is quite large, bar stress has exceeded yield point stress σ
s, because pull bar uses mild steel, the elongation rate before pull bar is disrumpent feelings is greater than 10%, so the part in tension AC section of aforementioned pull bar left end just there will be obvious elongation, the end pin of pull bar right-hand member CD section is then ejected D point ground tackle, and immediately by the anchoring of closed type ground tackle institute.When seismic forces commutates, on the left of block 2-1, B place ground tackle pushing drawing rod left, and the BD section pull bar tension on the left of block between ground tackle to pull bar right-hand member ground tackle, when pulling force has exceeded σ
s, this part pull bar obviously extends, and the left end end pin of pull bar is then ejected the ground tackle of its left end A point, and immediately by the anchoring of A point closed type ground tackle.In shuttling movement and so forth, fixed vibration absorption and isolation support originally, its performance is as same one-way movable support, and just it occurs that the starting point of obvious horizontal movement is that pull bar reaches σ
sthat moment, maximum value is then that bar stress reaches capacity σ
b, alternatively, when subtracting shock insulation mode of operation, the performance that fixed subtracts shock insulation drag link bearing is exactly the one-way support of a high-level drag.
embodiment 2with reference to Fig. 4,5,6,7,8, one-way movable type subtracts shock insulation drag link bearing, based on a kind of one-way spherical steel support, base 2, spherical antifriction plate 5, spherical liner plate 4, plane antifriction plate 6 are assembled routinely, the top board 1 of one-way spherical steel support be embedded in base 2 both sides a pair block 2-1 between, top board 1 realizes unidirectional horizontal movement using block 2-1 as guiding; Described top board 1 is one piece of flat board in I shape; Four top board wing tip 1-1 of top board respectively reserve one along bridge to circular hole, on described block 2-1 also individual reserve one along bridge to circular hole, the circular hole coaxial on the circular hole of top board wing tip and block and be parallel to the main displacement direction of bearing; Circular hole on the circular hole and block of top board wing tip is installed with pull bar 3, installs closed type ground tackle at the ends A place of pull bar 3 and D place, at B place, block 2-1 aperture, middle part and the C place of pull bar 3, then installs open type ground tackle.The back taper bench-type anchor circle 7-1 of described closed type ground tackle is enclosed within pull bar 3, the cross section of described pull bar 3 is rounded, the intermediate plate 7-2 mated with anchor circle 7-1 external surface is pressed into anchor circle, the casing 7-5 being fixed on aperture is provided with outside anchor circle, casing rear end is provided with bonnet 7-6, outside bonnet, be provided with hole back-up ring 7-7, inside bonnet, be provided with rear fender 7-8 and the front pressuring plate 7-3 of indent with intermediate plate end, spring 7-4 is enclosed within groove pull bar 3 snapping in front pressuring plate and rear fender.The back taper bench-type anchor circle 7-1 of described open type ground tackle is enclosed within pull bar 3, the intermediate plate 7-2 mated with anchor circle external surface is pressed into anchor circle, the casing 7-5 being fixed on aperture is provided with outside anchor circle, back-up ring 7-9 is provided with in the centre of casing, back-up ring and casing are fixed by alignment pin 7-11, casing rear end is provided with bonnet 7-6, hole back-up ring 7-7 is provided with outside bonnet, rear fender 7-8 and the front pressuring plate 7-3 of indent is provided with inside bonnet and outside back-up ring, spring 7-4 is enclosed within groove pull bar 3 snapping in front pressuring plate and rear fender, at front pressuring plate 7-3, back-up ring 7-9 and intermediate plate 7-2 end perforate, three is connected and fixed by intermediate plate connecting rod 7-10.Leave the gap of 2 ~ 3mm at block 2-1 and top board 1 place of being abutted against, can allow that bearing adapts to a small amount of horizontal movement of direction across bridge.The axis of pull bar 3 and the status of a sovereign of bearing move axis being parallel.
The ground tackle casing of pull bar 3 end will push against the aperture of top board wing tip 1-1, and the ground tackle casing in the middle of pull bar 3 will push against the aperture on block 2-1.Due to installation in the middle of pull bar 3 is open type ground tackle, open type ground tackle does not have effect of contraction to pull bar, so block 2-1 can along the free advance and retreat activity of pull bar 3, formation be exactly that one-way movable type subtracts shock insulation drag link bearing, the Δ X interval marked in Fig. 6 is exactly the horizontal displacement that it is allowed.During earthquake, the alignment pin 7 of back-up ring 6 being used for locking intermediate plate 2 position in open type ground tackle sleeve is pulled out, back-up ring 6 promotes forward by stage clip 4, brute force advances anchor circle 1 taper hole intermediate plate 2, clamping pull bar 3, this often opens ground tackle and just changes normally closed ground tackle into, and active type subtracts shock insulation drag link bearing and enters and subtract shock insulation mode of operation.To subtract shock insulation drag link bearing the same with fixed, and active type subtracts shock insulation drag link bearing when subtracting shock insulation mode of operation, and its performance is also a kind of one-way support of high-level drag.
Here, the extracting of alignment pin 7 in open type ground tackle, can be promoted by the mass of ground tackle casing outer pull bar axial sliding movement in earthquake, more accurate way be according to the earthquake acceleration of gravity numerical value of surveying, connect circuit, utilize electromagnet to extract.
Claims (8)
1. subtract a shock insulation drag link bearing, based on a kind of one-way spherical steel support, it is characterized in that: the top board of one-way spherical steel support be embedded in base both sides a pair block between, realize unidirectional horizontal movement using block as guiding; Described top board is one piece of flat board in I shape; Four top board wing tips of top board respectively reserve one along bridge to circular hole, on described block also individual reserve one along bridge to circular hole, the circular hole coaxial on the circular hole of top board wing tip and block and be parallel to the main displacement direction of bearing; Circular hole on the circular hole and block of top board wing tip is installed with pull bar, is provided with ground tackle at the two ends of pull bar and centre.
2. according to claim 1ly subtract shock insulation drag link bearing, it is characterized in that: two ends and the middle ground tackle installed of pull bar are closed type ground tackle, and the type that is fixed thus subtracts shock insulation drag link bearing.
3. according to claim 1ly subtract shock insulation drag link bearing, it is characterized in that: the ground tackle that the two ends of pull bar are installed is closed type ground tackle, and the ground tackle installed in the middle of pull bar is open type ground tackle, obtains one-way movable type thus and subtracts shock insulation drag link bearing.
4. according to claim 1ly subtract shock insulation drag link bearing, it is characterized in that: the axis of pull bar and the status of a sovereign of bearing move axis being parallel.
5. according to claim 1ly subtract shock insulation drag link bearing, it is characterized in that: the cross section of described pull bar is rounded.
6. according to claim 1ly subtract shock insulation drag link bearing, it is characterized in that: the gap leaving 2 ~ 3mm at block and the top board place of being abutted against.
7. according to claim 2ly subtract shock insulation drag link bearing, it is characterized in that: the back taper bench-type anchor snare of described closed type ground tackle is on pull bar, the intermediate plate mated with anchor circle external surface is pressed into anchor circle, the casing being fixed on aperture is provided with outside anchor circle, casing rear end is provided with bonnet, outside bonnet, be provided with hole back-up ring, inside bonnet, be provided with indent pressing plate with intermediate plate end, spring housing snaps in pressing plate on pull bar.
8. according to claim 3ly subtract shock insulation drag link bearing, it is characterized in that: the back taper bench-type anchor snare of described open type ground tackle is on pull bar, the intermediate plate mated with anchor circle external surface is pressed into anchor circle, the casing being fixed on aperture is provided with outside anchor circle, back-up ring is provided with in the centre of casing, back-up ring and casing are fixed by alignment pin, casing rear end is provided with bonnet, hole back-up ring is provided with outside bonnet, rear fender and the front pressuring plate of indent is provided with inside bonnet and outside back-up ring, spring housing snaps in the groove of front pressuring plate and rear fender on pull bar, at front pressuring plate, back-up ring and the perforate of intermediate plate end, three is connected and fixed by intermediate plate connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702164.4U CN204282204U (en) | 2014-11-21 | 2014-11-21 | Subtract shock insulation drag link bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702164.4U CN204282204U (en) | 2014-11-21 | 2014-11-21 | Subtract shock insulation drag link bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204282204U true CN204282204U (en) | 2015-04-22 |
Family
ID=52865384
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|---|---|---|---|
| CN201420702164.4U Expired - Fee Related CN204282204U (en) | 2014-11-21 | 2014-11-21 | Subtract shock insulation drag link bearing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237419A (en) * | 2017-07-27 | 2017-10-10 | 中国建筑西南设计研究院有限公司 | The earthquake isolating equipment that a kind of shock isolating pedestal in the case of drawing is pressurized all the time |
| CN107956203A (en) * | 2017-12-14 | 2018-04-24 | 苏州海德新材料科技股份有限公司 | Shock isolating pedestal and bridge |
| CN109235249A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support with dissipative member |
| CN114134914A (en) * | 2021-11-10 | 2022-03-04 | 大连理工大学 | Support method of swing type anti-seismic recoverable anchor rod suitable for complex slope support |
-
2014
- 2014-11-21 CN CN201420702164.4U patent/CN204282204U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237419A (en) * | 2017-07-27 | 2017-10-10 | 中国建筑西南设计研究院有限公司 | The earthquake isolating equipment that a kind of shock isolating pedestal in the case of drawing is pressurized all the time |
| CN107237419B (en) * | 2017-07-27 | 2022-12-06 | 中国建筑西南设计研究院有限公司 | Shock isolation device with shock isolation support always pressed under drawing condition |
| CN107956203A (en) * | 2017-12-14 | 2018-04-24 | 苏州海德新材料科技股份有限公司 | Shock isolating pedestal and bridge |
| CN109235249A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support with dissipative member |
| CN109235249B (en) * | 2018-11-14 | 2024-03-08 | 中铁二院工程集团有限责任公司 | Spherical steel support with energy dissipation members |
| CN114134914A (en) * | 2021-11-10 | 2022-03-04 | 大连理工大学 | Support method of swing type anti-seismic recoverable anchor rod suitable for complex slope support |
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