CN110965460A - Three-dimensional seismic mitigation and isolation support - Google Patents
Three-dimensional seismic mitigation and isolation support Download PDFInfo
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- CN110965460A CN110965460A CN201911165842.1A CN201911165842A CN110965460A CN 110965460 A CN110965460 A CN 110965460A CN 201911165842 A CN201911165842 A CN 201911165842A CN 110965460 A CN110965460 A CN 110965460A
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- 238000002955 isolation Methods 0.000 title claims abstract description 45
- 230000000116 mitigating effect Effects 0.000 title abstract description 19
- 230000009467 reduction Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000010008 shearing Methods 0.000 claims description 7
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
Abstract
The invention provides a three-dimensional seismic mitigation and isolation support which comprises an upper seat plate, a middle seat plate, a lower seat plate, a linear cone and an elastic assembly, wherein the upper seat plate, the middle seat plate and the lower seat plate are sequentially arranged from top to bottom, the middle seat plate is arranged on the lower seat plate through the elastic assembly and realizes vertical movement of the upper seat plate and the middle seat plate together through the elastic assembly, the upper seat plate can be slidably arranged on the middle seat plate to realize movement of the upper seat plate relative to the middle seat plate in the horizontal direction, a first cavity is arranged on the upper surface of the middle seat plate, a second cavity is arranged on the lower surface of the upper seat plate, the first cavity and the second cavity are matched to form a cavity for accommodating the linear cone, and the shape of the cavity is matched with that of the linear cone. The three-direction movement can be met, the normal displacement requirement of the bridge is met, the seismic isolation and reduction effect can be achieved in the three directions, and the basic self-resetting is achieved after the displacement.
Description
Technical Field
The invention relates to the technical field of bridge supports, in particular to a three-dimensional seismic isolation and reduction support.
Background
China is in an area affected by two strong earthquake regions, namely the Pacific zone and the Asia-Europe zone, is a country with multiple earthquakes, and in order to avoid great loss of lives and properties of people caused by earthquakes, at present, an engineering structure is often subjected to seismic mitigation and isolation measures to reduce the loss of the earthquakes to the engineering structure.
In bridge engineering, the application of the seismic isolation and reduction support can economically and effectively weaken the damage of earthquake to a bridge structure, and the prior seismic isolation and reduction support applied to the bridge is mainly used for seismic isolation and reduction in the horizontal direction, namely the seismic isolation and reduction effect is only in the horizontal direction, and less seismic isolation and reduction are carried out on vertical earthquake; meanwhile, the seismic mitigation and isolation support in the prior art has the problem that self-resetting cannot be achieved.
In conclusion, a three-dimensional seismic isolation bearing is urgently needed to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a three-dimensional seismic mitigation and isolation support, which has the following specific technical scheme:
the utility model provides a three-dimensional isolation bearing that subtracts, includes bedplate, well bedplate, lower bedplate, sharp awl and elastic component, it sets gradually from last to down to go up bedplate, well bedplate and lower bedplate, well bedplate pass through elastic component set up in just realize going up bedplate and well bedplate vertical motion together through elastic component on the bedplate down, it can slide to set up and realize going up bedplate relative to well bedplate on well bedplate in the horizontal direction to go up the bedplate, the upper surface of well bedplate is equipped with first die cavity, the lower surface of going up the bedplate is equipped with the second die cavity, first die cavity and the cooperation of second die cavity form the cavity that is used for holding sharp awl, the shape of cavity and the shape phase-match of sharp awl.
Preferably among the above technical scheme, be equipped with the third die cavity that is used for holding well bedplate on the bedplate down, elastic component set up in third die cavity bottom, well bedplate set up in the third die cavity and realize vertical braces through elastic component, warp through elastic component and realize going up bedplate and well bedplate and carry out vertical motion for the bedplate down together, the outer wall of well bedplate with the inner wall of third die cavity contacts, through the vertical motion energy consumption of rubbing between bedplate and the third die cavity in realizing.
Preferably among the above technical scheme, elastic component includes lower bedplate blotter and an at least buffer spring, the bottom surface of third die cavity is equipped with the blind hole corresponding with buffer spring quantity, lower bedplate blotter set up on the bottom surface of third die cavity just be equipped with on the bedplate blotter down with blind hole assorted through-hole, buffer spring's one end with the blind hole is connected, the other end pass behind the through-hole with the lower surface of well bedplate is connected.
Preferably, in the above technical solution, a plurality of the buffer springs are uniformly arranged; one end that buffer spring and well bedplate lower surface are connected is with the upper surface parallel and level of bedplate blotter down, the upper surface and the well bedplate lower surface of bedplate blotter contact down.
Preferred among the above technical scheme, the lower surface of going up the bedplate is equipped with the bedplate blotter, the upper surface of well bedplate is equipped with well bedplate blotter, realizes through last bedplate blotter and well bedplate blotter local compression that the bedplate rotated for well bedplate.
Above technical scheme is preferred, still include an at least stopper, the stopper set up in on the upper seat board and be located the outer wall outside of well bedplate, through the stopper realizes carrying on spacingly to the motion between upper seat board and the well bedplate.
Preferably in the technical scheme, the stopper is provided with a shearing opening, the position of the shearing opening in the vertical direction is higher than or equal to the position of a contact surface between the middle seat cushion pad and the upper seat cushion pad, and the stopper is sheared by impact through the shearing opening.
Preferably, in the above technical solution, a plurality of the stoppers are uniformly arranged along the periphery of the upper seat plate, and the stopper is used for limiting the relative movement between the upper seat plate and the middle seat plate in the horizontal direction;
the stopper includes short limit section and long limit section, and both mutually perpendicular set up and constitute L type structure, the short limit section sets up on last bedplate, long limit section is located the outer wall outside of last bedplate and well bedplate, there is the clearance between long limit section and the well bedplate or both contact, cut the mouth and set up on long limit section.
Preferably, in the above technical scheme, the linear cone includes two symmetrically arranged rectangular pyramids, bottom surfaces of the two rectangular pyramids are attached to each other to form the linear cone, and the first cavity and the second cavity are both rectangular pyramid cavities.
In the above technical solution, preferably, the friction coefficients of the inner wall of the first cavity and the inner wall of the second cavity are uniformly arranged and equal, and the friction coefficients of the outer side surfaces of the two rectangular pyramids are gradually increased from the bottom surface of the rectangular pyramid to the vertex of the rectangular pyramid.
The technical scheme of the invention has the following beneficial effects:
(1) the three-dimensional seismic mitigation and isolation support supports the middle seat plate through the elastic component, so that the upper seat plate and the middle seat plate move vertically together, the upper seat plate moves horizontally relative to the middle seat plate, the movement in three directions can be met on a space coordinate system, the normal displacement requirement of a bridge is met, and seismic mitigation and isolation effects can be achieved in three directions. The unfixed period of the support can be realized through the straight line cone, so that the phenomenon of resonance in the earthquake is avoided; meanwhile, the matching of the linear cone and the cavity can also realize the self-resetting effect.
(2) According to the three-dimensional seismic mitigation and isolation support, the outer wall of the middle base plate is in contact with the inner wall of the third cavity, and friction energy dissipation is performed through friction force between the middle base plate and the inner wall of the third cavity, so that vertical seismic energy is dissipated, and a vertical seismic mitigation and isolation effect is achieved.
(3) According to the three-dimensional seismic mitigation and isolation support, the elastic assembly comprises the lower seat cushion and the buffer spring, the lower seat cushion and the buffer spring bear vertical force together, stress concentration of the middle seat plate and the lower seat plate can be effectively avoided, the lower seat cushion can play a damping role, and the vertical direction seismic mitigation and isolation function under the action of an earthquake is realized. Meanwhile, the energy consumption is carried out by utilizing the friction force between the middle seat plate and the lower seat plate to do work through the relative motion between the middle seat plate and the lower seat plate, and the vertical displacement change requirement and the vertical seismic reduction and isolation requirement can be met simultaneously.
(4) According to the three-dimensional seismic mitigation and isolation support, the upper seat plate buffering cushion is arranged on the lower surface of the upper seat plate, the middle seat plate buffering cushion is arranged on the upper surface of the middle seat plate, the upper seat plate rotates relative to the middle seat plate through the partial compression of the upper seat plate buffering cushion and the middle seat plate buffering cushion, and the requirement for the rotational displacement of a bridge is met.
(5) The three-dimensional seismic mitigation and isolation support comprises the limiter, the upper seat plate can be effectively limited through the limiter, the support can be divided into a movable support and a fixed support according to the arrangement of the limiter, and the requirements of different use requirements are met.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an axonometric view of the three-dimensional seismic mitigation and isolation bearing of the invention;
FIG. 2 is a cross-sectional view of the three-dimensional seismic mitigation and isolation bearing of the present invention;
FIG. 3 is a schematic view of the structure of the straight-line cone in FIG. 2;
FIG. 4 is a schematic diagram of the displacement of the upper seat plate of the three-dimensional seismic mitigation and isolation bearing of the invention;
FIG. 5 is a schematic diagram of the displacement of the upper seat plate and the linear cone of the three-dimensional seismic mitigation and isolation bearing of the invention;
the device comprises a limiter 1, a shearing port 1.1, an upper seat plate 2, a middle seat plate 3, a middle seat plate 4, a lower seat plate 5, a middle seat plate cushion pad 6, an upper seat plate cushion pad 7, a linear cone 7.1, a rectangular pyramid 8, a lower seat plate cushion pad 9 and a buffer spring.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, as defined and covered by the claims.
Example 1:
referring to fig. 1-3, a three-dimensional shock absorption and isolation bearing specifically is a three-dimensional shock absorption and isolation bearing applied to a bridge, including last bedplate 2, well bedplate 3, lower bedplate 4, sharp awl 7 and elastic component, last bedplate 2, well bedplate 3 and lower bedplate 4 set gradually from last to bottom, well bedplate 3 through elastic component set up in on lower bedplate 4 and through elastic component realize bedplate 2 and well bedplate 3 vertical motion together, go up bedplate 2 slidable set up and realize on well bedplate 3 that bedplate 2 moves at the horizontal direction for well bedplate 3, the upper surface of well bedplate 3 is equipped with first die cavity, the lower surface of going up bedplate 2 is equipped with the second die cavity, first die cavity and second die cavity cooperation form the cavity that is used for holding sharp awl 7, the shape of cavity matches with the shape of sharp awl 7.
Preferably, the shape and size of the cavity are larger than those of the linear cone, that is, the shape of the cavity is similar to that of the linear cone.
The purpose of shock absorption and isolation by friction energy consumption and gravitational potential energy acting can be realized by arranging the matching of the linear cone and the cavity, meanwhile, the period of the three-dimensional shock absorption and isolation support can be unfixed due to the special structure of the linear cone, the support is similar to a common friction pendulum support, and the period formula of the common friction pendulum support is as follows:
where π is the circumference ratio, R is the radius of curvature, and g is the gravitational acceleration.
For the common friction pendulum support, the curvature radius is a fixed value, so the period of the common friction pendulum support is a fixed value, and for the support provided by the invention, the curvature radius of the straight line cone is infinite, so the period of the common friction pendulum support is not a fixed value, and the resonance phenomenon in an earthquake can be avoided.
The lower seat plate 4 is provided with a third cavity for accommodating the middle seat plate 3, the elastic assembly is arranged at the bottom of the third cavity, the middle seat plate 3 is arranged in the third cavity and vertically supported through the elastic assembly, the upper seat plate 2 and the middle seat plate 3 vertically move together through deformation of the elastic assembly, the outer wall of the middle seat plate 3 is in contact with the inner wall of the third cavity, and friction energy consumption between the middle seat plate and the third cavity is realized through vertical movement.
The upper seat plate carries out horizontal movement relative to the middle seat plate, and the upper seat plate and the middle seat plate move vertically relative to the lower seat plate together through the elastic piece, so that the displacement in the three-dimensional coordinate direction is realized, and the multi-directional displacement requirement of the bridge is met.
Elastic component includes bedplate blotter 8 and an at least buffer spring 9 down, the bottom surface of third die cavity is equipped with the blind hole corresponding with buffer spring 9 quantity, bedplate blotter 8 sets up on the bottom surface of third die cavity down be equipped with on bedplate blotter 8 down with blind hole assorted through-hole (the through-hole is corresponding with the blind hole position promptly, the size is the same), buffer spring 9's one end with the blind hole is connected, and the other end passes behind the through-hole with well bedplate 3's lower surface is connected.
The buffer springs 9 are uniformly arranged, one ends of the buffer springs 9 connected with the lower surface of the middle seat plate 3 are flush with the upper surface of the lower seat plate buffer pad 8, and the upper surface of the lower seat plate buffer pad 8 is in contact with the lower surface of the middle seat plate.
Relative motion between the outer wall of bedplate and the inner wall of third die cavity in realizing through buffer spring and lower bedplate blotter compression deformation utilizes the frictional force between bedplate and the third die cavity to carry out the friction energy dissipation.
The lower surface of going up bedplate 2 is equipped with bedplate blotter 6, the upper surface of well bedplate 3 is equipped with well bedplate blotter 5, realizes going up bedplate 2 through last bedplate blotter 6 and the local compression of well bedplate blotter 5 and rotates for well bedplate 3.
As will be appreciated by those skilled in the art, the partial compression of the upper and middle seat cushion will cause the upper seat to tilt, i.e., the upper seat rotates relative to the middle seat, to meet the rotational displacement requirements of the bridge. The range of the rotation angle can be controlled by controlling the thickness of the upper seat cushion and the middle seat cushion.
Preferably, the upper seat cushion 6, the middle seat cushion 5 and the lower seat cushion 8 are all high damping rubber pads.
Referring to fig. 1, the three-dimensional seismic mitigation and isolation bearing further comprises at least one stopper 1, preferably at least three stoppers, wherein the stopper 1 is arranged on the upper seat plate 2 and located on the outer side of the outer wall of the middle seat plate 3, and the stopper 1 is used for limiting the movement between the upper seat plate 2 and the middle seat plate 3.
Be equipped with on stopper 1 and cut fracture 1.1, cut the position on the vertical direction of fracture 1.1 and be higher than or equal to the position of the contact surface between well bedplate blotter 5 and the upper seat plate blotter 6, realize through cutting fracture 1.1 that stopper 1 receives the impact and is cut off.
The plurality of limiting devices 1 are uniformly arranged along the periphery of the upper seat plate 2, and the limiting devices 1 limit the relative motion between the upper seat plate 2 and the middle seat plate in the horizontal direction.
The stopper includes short limit section and long limit section, and both mutually perpendicular set up and constitute L type structure, the short limit section sets up on last bedplate, long limit section is located the outer wall outside of last bedplate and well bedplate, there is the clearance between long limit section and the well bedplate or both contact, cut the mouth and set up on long limit section.
Referring to fig. 2, when a gap is formed between the long side section and the middle seat plate (the gap should be set according to actual requirements), the support of the invention is a movable support, that is, the upper seat plate can freely move within a range allowed by the gap, so as to meet the normal displacement requirement of the bridge; when the long side section is contacted with the middle base plate, the support is a fixed support, namely the upper base plate can be displaced only after the long side section is cut off, so that the requirement of the support needing to be fixed by a bridge is met.
The straight line awl 7 includes two rectangular pyramids 7.1 that the symmetry set up, two the bottom surface of rectangular pyramid 7.1 is laminated mutually and is constituted straight line awl 7, first die cavity and second die cavity are the rectangular pyramid die cavity.
The friction coefficients of the inner wall of the first cavity and the inner wall of the second cavity are uniformly distributed and equal, and the friction coefficients of the outer side surfaces of the two rectangular pyramids are gradually increased from the bottom surfaces of the rectangular pyramids to the vertexes of the rectangular pyramids.
The working principle of the three-dimensional seismic isolation and reduction support is as follows:
taking the three-dimensional seismic isolation and reduction support of the invention as a movable support as an example: under the normal use condition, can realize the translation displacement between last bedplate blotter and the well bedplate blotter, also can realize rotary displacement through the inhomogeneous compression between two-layer blotter simultaneously, realize translation displacement and rotary displacement demand under the support normal use condition.
Under the action of a designed earthquake, the limiter is sheared, the upper seat plate can be subjected to translational displacement to be in contact with the linear cone, the earthquake energy is consumed through translational displacement friction, and the upper seat plate is limited through the linear cone, which is shown in figure 4;
referring to fig. 5, when the earthquake is further increased, the upper seat plate and the linear cone slide upwards along the inner wall of the first cavity (because the friction coefficient distribution on the linear cone is not uniform, when the upper seat plate is in contact with the linear cone and the earthquake is further increased, the friction coefficient between the linear cone and the second cavity is greater than that between the linear cone and the first cavity, the upper seat plate and the linear cone slide upwards along the inner wall of the first cavity); when the linear cone slides to a certain distance along the inner wall of the first cavity, the friction force between the linear cone and the first cavity is greater than the friction force between the linear cone and the second cavity, and the upper seat plate slides upwards (not shown) along the side wall (i.e. the outer side surface of the rectangular pyramid) of the linear cone. The energy consumption is realized through friction and gravitational potential energy after the repeated transformation.
Meanwhile, under the action of a vertical earthquake, because the side walls of the middle seat plate and the lower seat plate are in friction contact, the vertical earthquake can be dissipated due to the existence of friction, and the energy input of the vertical earthquake is reduced.
After the earthquake, go up bedplate and sharp awl and can be down gliding along the lateral wall of first die cavity under the effect of gravity, realize going up the bedplate and laminating with well bedplate once more, realize basically from restoring to the throne.
And aiming at the fixed support, the stopper can be cut off only when the fixed support reaches the designed earthquake standard, the upper seat plate can perform translational displacement, and the working principle of the fixed support is the same as that of the movable support.
The technical scheme of the embodiment is specifically as follows:
in the practical application process, the upper surface of the upper seat plate is connected with the lower surface of the main beam, the lower surface of the lower seat plate is arranged on the bridge pier support cushion stone, and the main beam and the upper seat plate and the lower seat plate and the bridge pier support cushion stone are fastened by bolts.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A three-dimensional seismic isolation bearing is characterized by comprising an upper seat plate (2), a middle seat plate (3), a lower seat plate (4), a linear cone (7) and an elastic component, the upper seat plate (2), the middle seat plate (3) and the lower seat plate (4) are sequentially arranged from top to bottom, the middle seat plate (3) is arranged on the lower seat plate (4) through an elastic component and realizes the vertical movement of the upper seat plate (2) and the middle seat plate (3) through the elastic component, the upper seat board (2) can be arranged on the middle seat board (3) in a sliding way to realize that the upper seat board (2) moves in the horizontal direction relative to the middle seat board (3), the upper surface of the middle seat plate (3) is provided with a first cavity, the lower surface of the upper seat plate (2) is provided with a second cavity, the first die cavity and the second die cavity are matched to form a cavity for accommodating the linear cone (7), and the shape of the cavity is matched with that of the linear cone (7).
2. The three-dimensional seismic isolation and reduction support according to claim 1, wherein a third cavity for accommodating a middle seat plate (3) is arranged on the lower seat plate (4), the elastic assembly is arranged at the bottom of the third cavity, the middle seat plate (3) is arranged in the third cavity and vertically supported by the elastic assembly, the upper seat plate (2) and the middle seat plate (3) vertically move relative to the lower seat plate together through deformation of the elastic assembly, the outer wall of the middle seat plate (3) is in contact with the inner wall of the third cavity, and friction energy dissipation between the middle seat plate and the third cavity is realized through vertical movement.
3. The three-dimensional seismic isolation bearing according to claim 2, wherein the elastic component comprises a lower seat plate buffer pad (8) and at least one buffer spring (9), the bottom surface of the third cavity is provided with blind holes corresponding to the number of the buffer springs (9), the lower seat plate buffer pad (8) is arranged on the bottom surface of the third cavity, the lower seat plate buffer pad (8) is provided with through holes matched with the blind holes, one end of each buffer spring (9) is connected with the blind hole, and the other end of each buffer spring is connected with the lower surface of the middle seat plate (3) after penetrating through the through holes.
4. The three-dimensional seismic isolation bearing according to claim 3, wherein a plurality of the buffer springs (9) are uniformly arranged; one end of the buffer spring (9) connected with the lower surface of the middle seat plate (3) is flush with the upper surface of the lower seat plate buffer pad (8), and the upper surface of the lower seat plate buffer pad (8) is in contact with the lower surface of the middle seat plate.
5. The three-dimensional seismic isolation bearing according to claim 4, wherein the lower surface of the upper seat plate (2) is provided with an upper seat plate buffer cushion (6), the upper surface of the middle seat plate (3) is provided with a middle seat plate buffer cushion (5), and the rotation of the upper seat plate (2) relative to the middle seat plate (3) is realized through the partial compression of the upper seat plate buffer cushion (6) and the middle seat plate buffer cushion (5).
6. The three-dimensional seismic isolation bearing according to claim 5, further comprising at least one stopper (1), wherein the stopper (1) is arranged on the upper seat plate (2) and located outside the outer wall of the middle seat plate (3), and the stopper (1) is used for limiting the movement between the upper seat plate (2) and the middle seat plate (3).
7. The three-dimensional seismic isolation bearing according to claim 6, wherein a shearing opening (1.1) is formed in the limiter (1), the position of the shearing opening (1.1) in the vertical direction is higher than or equal to the position of a contact surface between the middle seat cushion pad (5) and the upper seat cushion pad (6), and the limiter (1) is sheared by impact through the shearing opening (1.1).
8. The three-dimensional seismic isolation bearing according to claim 7, wherein a plurality of the limiters (1) are uniformly arranged along the periphery of the upper seat plate (2), and the limiting of the relative motion in the horizontal direction between the upper seat plate (2) and the middle seat plate is realized by the plurality of the limiters (1);
stopper (1) includes short limit section and long limit section, and both mutually perpendicular set up and constitute L type structure, short limit section sets up on the bedplate, long limit section is located the outer wall outside of bedplate and well bedplate, there is the clearance or both to contact between long limit section and the well bedplate, cut the mouth and set up on long limit section.
9. The three-dimensional seismic isolation bearing according to any one of claims 1 to 8, wherein the linear cone (7) comprises two symmetrically arranged rectangular pyramids (7.1), the bottom surfaces of the two rectangular pyramids (7.1) are attached to form the linear cone (7), and the first cavity and the second cavity are rectangular pyramid cavities.
10. The three-dimensional seismic isolation and reduction support according to claim 9, wherein the friction coefficients of the inner wall of the first cavity and the inner wall of the second cavity are uniformly arranged and equal, and the friction coefficients of the outer side surfaces of both the rectangular pyramids are gradually increased from the bottom surface of the rectangular pyramid to the vertex of the rectangular pyramid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165842.1A CN110965460B (en) | 2019-11-25 | Three-dimensional shock-absorbing and isolating support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165842.1A CN110965460B (en) | 2019-11-25 | Three-dimensional shock-absorbing and isolating support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110965460A true CN110965460A (en) | 2020-04-07 |
| CN110965460B CN110965460B (en) | 2024-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113202204A (en) * | 2021-06-07 | 2021-08-03 | 范雷彪 | Pendulum type support with longitudinal buffering function |
| CN114622661A (en) * | 2022-03-09 | 2022-06-14 | 广州大学 | Self-recovery inclined plane friction limiting energy consumption device |
| CN115492254A (en) * | 2022-09-27 | 2022-12-20 | 上海市市政公路工程检测有限公司 | Sliding shock insulation support with lead core |
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| KR101575743B1 (en) * | 2014-06-20 | 2015-12-11 | 한국철도공사 | Vibration damper utilizing wedges |
| US20160348751A1 (en) * | 2014-02-18 | 2016-12-01 | Yeoung Cheol CHO | Seismic isolator utilizing wedge |
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| KR20020079050A (en) * | 2001-04-12 | 2002-10-19 | 주식회사 화인 | earthquake insulating composite bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114622661A (en) * | 2022-03-09 | 2022-06-14 | 广州大学 | Self-recovery inclined plane friction limiting energy consumption device |
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| CN115492254A (en) * | 2022-09-27 | 2022-12-20 | 上海市市政公路工程检测有限公司 | Sliding shock insulation support with lead core |
| CN115492254B (en) * | 2022-09-27 | 2023-11-10 | 上海市市政公路工程检测有限公司 | Set up plumbous core and slide shock insulation support |
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