CN110965460B - Three-dimensional shock-absorbing and isolating support - Google Patents
Three-dimensional shock-absorbing and isolating support Download PDFInfo
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- CN110965460B CN110965460B CN201911165842.1A CN201911165842A CN110965460B CN 110965460 B CN110965460 B CN 110965460B CN 201911165842 A CN201911165842 A CN 201911165842A CN 110965460 B CN110965460 B CN 110965460B
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- 230000035939 shock Effects 0.000 claims abstract description 18
- 238000010008 shearing Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 18
- 238000002955 isolation Methods 0.000 abstract description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 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
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
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- Civil Engineering (AREA)
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- Vibration Prevention Devices (AREA)
Abstract
The invention provides a three-dimensional shock-absorbing and isolating 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 can vertically move together through the elastic assembly, the upper seat plate can be slidably arranged on the middle seat plate to realize the 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 motion can be met, the normal displacement requirement of the bridge is met, the shock absorption and isolation effect can be realized in the three directions, and the basic self-reset is realized after the displacement.
Description
Technical Field
The invention relates to the technical field of bridge supports, in particular to a three-dimensional shock-absorbing and isolating support.
Background
The earthquake-resistant building is a country with multiple earthquakes in the affected areas of the two major earthquake-prone areas of the Pacific zone and the European zone, and in order to avoid huge loss of life and property of people caused by earthquakes, at present, an engineering structure usually adopts earthquake-reduction and isolation measures to weaken the loss of the earthquakes to the engineering structure.
In bridge engineering, the application of the shock-absorbing and isolating support can economically and effectively weaken the damage of the earthquake to the bridge structure, and the shock-absorbing and isolating support applied to the bridge at present is mainly used for the shock absorption and isolation in the horizontal direction, namely the shock-absorbing and isolating effect is only in the horizontal direction, and the shock absorption and isolation for the vertical earthquake are less; meanwhile, the shock absorbing and isolating support in the prior art has the problem that the shock absorbing and isolating support cannot be reset automatically.
In view of the foregoing, there is a need for a three-dimensional shock absorbing and isolating support to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a three-dimensional shock-absorbing and isolating support, which has the following specific technical scheme:
The utility model provides a three-dimensional shock attenuation and isolation support, includes bedplate, well bedplate, lower bedplate, sharp awl and elastic component, bedplate, well bedplate and lower bedplate set gradually from last to down, well bedplate pass through elastic component set up in on the bedplate down and through elastic component realization bedplate and well bedplate together vertical motion, the bedplate slidable sets up on well bedplate and realizes the bedplate and move in the horizontal direction for well bedplate on, the upper surface of well bedplate is equipped with first die cavity, the lower surface of bedplate 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, the shape of cavity and the shape assorted of sharp awl.
In the above technical scheme, preferably, be equipped with the third die cavity that is used for holding well bedplate on the lower bedplate, elastic component set up in third die cavity bottom, well bedplate set up in the third die cavity and realize vertical support through elastic component, realize going up bedplate and well bedplate and carrying out vertical motion for lower bedplate together through elastic component deformation, the outer wall of well bedplate with the inner wall of third die cavity contacts, realizes the friction power consumption between well bedplate and the third die cavity through vertical motion.
The elastic component comprises a lower seat board buffer cushion and at least one buffer spring, blind holes corresponding to the buffer springs in number are formed in the bottom surface of the third cavity, the lower seat board buffer cushion is arranged on the bottom surface of the third cavity, through holes matched with the blind holes are formed in the lower seat board buffer cushion, one end of each buffer spring is connected with each blind hole, and the other end of each buffer spring penetrates through each through hole and then is connected with the lower surface of the middle seat board.
In the above technical solution, preferably, a plurality of the buffer springs are uniformly arranged; one end of the buffer spring connected with the lower surface of the middle seat board is flush with the upper surface of the buffer pad of the lower seat board, and the upper surface of the buffer pad of the lower seat board is contacted with the lower surface of the middle seat board.
In the above technical scheme, preferably, the lower surface of upper saddle is equipped with the upper saddle blotter, the upper surface of well bedplate is equipped with well bedplate blotter, realizes through upper saddle blotter and well bedplate blotter local compression that the upper saddle rotates for well bedplate.
The technical scheme is that the device further comprises at least one limiter, wherein the limiter is arranged on the upper seat plate and located on the outer side of the outer wall of the middle seat plate, and limiting of movement between the upper seat plate and the middle seat plate is achieved through the limiter.
In the above technical scheme, preferably, the limiter 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 the contact surface between the middle seat board cushion pad and the upper seat board cushion pad, and the limiter is sheared by impact through the shearing opening.
In the above technical solution, preferably, the plurality of limiters are uniformly arranged along the periphery of the upper seat plate, and the limitation of the relative movement between the upper seat plate and the middle seat plate in the horizontal direction is realized by the plurality of limiters;
The limiter comprises a short side section and a long side section, the short side section and the long side section are perpendicular to each other to form an L-shaped structure, the short side section is arranged on the upper seat plate, the long side section is positioned on the outer sides of the outer walls of the upper seat plate and the middle seat plate, a gap exists between the long side section and the middle seat plate or the long side section and the long side section are contacted with each other, and the shearing opening is arranged on the long side section.
In the above technical scheme, preferably, the linear cone comprises two rectangular pyramids which are symmetrically arranged, the 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 sides 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 shock-absorbing and isolating support is characterized in that the middle seat board is supported by the elastic component, so that the upper seat board and the middle seat board move vertically together, the upper seat board moves horizontally relative to the middle seat board, the movement in three directions can be met on a space coordinate system, the normal displacement requirement of a bridge is met, and the shock-absorbing and isolating effect can be realized in the three directions. The periodic unfixed support can be realized through the linear cone, so that the phenomenon of resonance in earthquake is avoided; meanwhile, the cooperation of the linear cone and the cavity can also realize a self-resetting effect.
(2) According to the three-dimensional seismic reduction and isolation support, the outer wall of the middle seat plate is contacted with the inner wall of the third cavity, friction energy dissipation is carried out through friction force between the outer wall of the middle seat plate and the inner wall of the third cavity, vertical seismic energy is dissipated, and the effect of vertical seismic reduction and isolation is achieved.
(3) The three-dimensional shock-absorbing and isolating support comprises the lower seat board buffer cushion and the buffer spring, wherein the lower seat board buffer cushion and the buffer spring bear vertical force together, so that stress concentration of the middle seat board and the lower seat board can be effectively avoided, the existence of the lower seat board buffer cushion can play a role in damping, and the shock absorption effect in the vertical direction under the action of an earthquake is realized. Meanwhile, the relative motion between the middle seat board and the lower seat board utilizes the friction force between the two to do work to consume energy, so that the vertical displacement change requirement and the vertical shock absorption and insulation requirement can be simultaneously met.
(4) According to the three-dimensional shock absorption and isolation support, the upper seat plate buffer cushion is arranged on the lower surface of the upper seat plate, the middle seat plate buffer cushion is arranged on the upper surface of the middle seat plate, the upper seat plate rotates relative to the middle seat plate through partial compression of the upper seat plate buffer cushion and the middle seat plate buffer cushion, and the rotation displacement requirement of a bridge is met.
(5) The three-dimensional shock-absorbing and isolating support comprises the limiter, the upper seat plate can be effectively limited through the limiter, and the support can be divided into a movable support and a fixed support according to the arrangement of the limiter, so that the requirements of different use requirements are met.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is an isometric view of a three-dimensional seismic reduction and isolation mount of the present invention;
FIG. 2 is a cross-sectional view of a three-dimensional seismic reduction and isolation mount of the invention;
FIG. 3 is a schematic view of the linear cone of FIG. 2;
FIG. 4 is a schematic view of the displacement of the upper seat plate of the three-dimensional seismic isolation bearing of the invention;
FIG. 5 is a schematic view of the displacement of the upper seat plate and the linear cone of the three-dimensional shock absorbing and isolating support of the present invention;
Wherein, 1, a limiter, 1.1, a cutting opening, 2, an upper seat board, 3, a middle seat board, 4, a lower seat board, 5 and a middle seat board buffer cushion, 6, an upper seat board buffer cushion, 7, a linear cone, 7.1, a rectangular pyramid, 8, a lower seat board buffer cushion, 9 and a buffer spring.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1:
Referring to fig. 1-3, a three-dimensional shock-absorbing and isolating support, in particular to a three-dimensional shock-absorbing and isolating support applied to a bridge, which comprises an upper seat board 2, a middle seat board 3, a lower seat board 4, a linear cone 7 and an elastic component, wherein the upper seat board 2, the middle seat board 3 and the lower seat board 4 are sequentially arranged from top to bottom, the middle seat board 3 is arranged on the lower seat board 4 through the elastic component and realizes the vertical movement of the upper seat board 2 and the middle seat board 3 together through the elastic component, the upper seat board 2 is slidably arranged on the middle seat board 3 to realize the movement of the upper seat board 2 relative to the middle seat board 3 in the horizontal direction, a first cavity is arranged on the upper surface of the middle seat board 3, a second cavity is arranged on the lower surface of the upper seat board 2, the first cavity and the second cavity are matched to form a cavity for accommodating the linear cone 7, and the shape of the cavity is matched with the shape of the linear cone 7.
Preferably, the shape and size of the cavity are larger than those of the linear cone, i.e. the shape of the cavity is similar to that of the linear cone.
The linear cone and the cavity are matched, so that the purposes of reducing and isolating vibration can be realized, meanwhile, due to the special structure of the linear cone, the periodic unfixed three-dimensional vibration reducing and isolating support can be realized, and the support is similar to a common friction pendulum support, and the periodic formula of the common friction pendulum support is as follows: wherein pi is the circumference ratio, R is the radius of curvature, g is the gravitational acceleration.
For a common friction pendulum support, the curvature radius is a fixed value, so the period is a fixed value, and for the support of the invention, the curvature radius of the linear cone is infinity, so the period is not a fixed value, thereby the resonance phenomenon in the earthquake can be avoided.
The lower seat board 4 is provided with a third cavity for accommodating the middle seat board 3, the elastic component is arranged at the bottom of the third cavity, the middle seat board 3 is arranged in the third cavity and vertically supported through the elastic component, the upper seat board 2 and the middle seat board 3 vertically move together through deformation of the elastic component, the outer wall of the middle seat board 3 is in contact with the inner wall of the third cavity, and friction energy consumption between the middle seat board and the third cavity is realized through vertical movement.
The upper seat board moves horizontally relative to the middle seat board, the upper seat board and the middle seat board move vertically relative to the lower seat board seat together through the elastic piece, namely, displacement in the three-dimensional coordinate direction is realized, and the multi-directional displacement requirement of the bridge is met.
The elastic component includes lower bedplate blotter 8 and at least one buffer spring 9, the bottom surface of third die cavity is equipped with the blind hole corresponding with buffer spring 9 quantity, lower bedplate blotter 8 set up on the bottom surface of third die cavity just be equipped with on the lower bedplate blotter 8 with blind hole assorted through-hole (i.e. the through-hole corresponds with the blind hole position, the size is the same), buffer spring 9's one end with the blind hole is connected, the other end pass behind the through-hole with the lower surface of well bedplate 3 is connected.
The buffer springs 9 are uniformly arranged, one end of each 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 cushion 8, and the upper surface of the lower seat plate buffer cushion 8 is in contact with the lower surface of the middle seat plate.
The outer wall of the middle seat board and the inner wall of the third cavity are relatively moved through compression deformation of the buffer spring and the buffer pad of the lower seat board, and friction energy dissipation is carried out by utilizing friction force between the middle seat board and the third cavity.
The lower surface of the upper seat board 2 is provided with an upper seat board buffer cushion 6, the upper surface of the middle seat board 3 is provided with a middle seat board buffer cushion 5, and the upper seat board 2 rotates relative to the middle seat board 3 through local compression of the upper seat board buffer cushion 6 and the middle seat board buffer cushion 5.
Those skilled in the art will appreciate that partial compression of the upper seat pan cushion and the middle seat pan cushion will cause the upper seat pan to tilt, i.e., the upper seat pan rotates relative to the middle seat pan, meeting the rotational displacement requirements of the bridge. The range of the rotation angle can be controlled by controlling the thickness of the upper seat board cushion pad and the middle seat board cushion pad.
Preferably, the upper seat plate cushion 6, the middle seat plate cushion 5 and the lower seat plate cushion 8 are all high damping rubber pads.
Referring to fig. 1, the three-dimensional seismic isolation support further comprises at least one limiter 1, preferably at least three limiters, wherein the limiter 1 is arranged on the upper seat plate 2 and is positioned on the outer side of the outer wall of the middle seat plate 3, and the limiter 1 is used for limiting the movement between the upper seat plate 2 and the middle seat plate 3.
The limit stopper 1 is provided with a shearing opening 1.1, the position of the shearing opening 1.1 in the vertical direction is higher than or equal to the position of the contact surface between the middle seat board cushion pad 5 and the upper seat board cushion pad 6, and the limit stopper 1 is sheared by impact through the shearing opening 1.1.
The stoppers 1 are uniformly arranged along the periphery of the upper seat plate 2, and the stoppers 1 are used for limiting the relative movement between the upper seat plate 2and the middle seat plate in the horizontal direction.
The limiter comprises a short side section and a long side section, the short side section and the long side section are perpendicular to each other to form an L-shaped structure, the short side section is arranged on the upper seat plate, the long side section is positioned on the outer sides of the outer walls of the upper seat plate and the middle seat plate, a gap exists between the long side section and the middle seat plate or the long side section and the long side section are contacted with each other, and the shearing opening is arranged on the long side section.
Referring to fig. 2, when a gap is arranged between the long side section and the middle seat board (the gap is set according to actual requirements), the seat is a movable seat, namely the upper seat board can freely move within the allowable range of the gap, so that the normal displacement requirement of the bridge is met; when the long side section is contacted with the middle seat board, the support is a fixed support, namely the upper seat board can be displaced only after the long side section is sheared, so that the requirement of the bridge for fixing is met.
The straight cone 7 comprises two symmetrically arranged rectangular pyramids 7.1, the bottom surfaces of the two rectangular pyramids 7.1 are attached to each other to form the straight cone 7, and the first cavity and the second cavity are both rectangular pyramid cavities.
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 surface of the rectangular pyramid to the vertex of the rectangular pyramid.
The working principle of the three-dimensional shock-absorbing and isolating support is as follows:
Taking the three-dimensional shock-absorbing and isolating support of the invention as a movable support as an example: under normal use conditions, translational displacement can be realized between the upper seat board buffer cushion and the middle seat board buffer cushion, and meanwhile, rotational displacement can be realized through uneven compression between the two layers of buffer cushions, so that the translational displacement and rotational displacement requirements of the support under normal use conditions are realized.
Under the designed earthquake action, the limiter is sheared, the upper seat plate can perform translational displacement until the upper seat plate is contacted with the linear cone, earthquake energy is consumed through translational displacement friction, and the upper seat plate is limited through the linear cone, as shown in fig. 4;
Referring to fig. 5, when the earthquake is further enlarged, the upper seat plate slides upward along the inner wall of the first cavity together with the linear cone (because the friction coefficient distribution on the linear cone is not uniform, when the upper seat plate contacts the linear cone and the earthquake is further enlarged, the friction coefficient between the linear cone and the second cavity is greater than that between the linear cone and the first cavity, so the upper seat plate slides upward along the inner wall of the first cavity together with the linear cone); 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 along the side wall of the linear cone (namely the outer side surface of the rectangular pyramid) (not shown). The transformation is repeated in this way, and the work and energy consumption is realized through friction and gravitational potential energy.
Meanwhile, under the action of vertical earthquake, the side walls of the middle seat board and the lower seat board are in friction contact, so that the existence of friction force can dissipate the vertical earthquake and reduce the energy input of the vertical earthquake.
After an earthquake, the upper seat plate and the linear cone can slide downwards along the side wall of the first cavity under the action of gravity, so that the upper seat plate is attached to the middle seat plate again, and self-resetting is basically realized.
And for the fixed support, the fixed support can be sheared only when the limit stopper reaches the designed earthquake standard condition, the upper seat plate can carry out translational displacement, and the working principle of the upper seat plate 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 upper bedplate is connected with the lower surface of girder, the lower surface of lower bedplate sets up on pier support filler stone to fasten between girder and the upper bedplate, between lower bedplate and the pier support filler stone with the bolt.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The three-dimensional shock-absorbing and isolating support 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 assembly, wherein 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 the elastic assembly, the upper seat plate (2) and the middle seat plate (3) move vertically together through the elastic assembly, the upper seat plate (2) is slidably arranged on the middle seat plate (3) to realize that the upper seat plate (2) moves in the horizontal direction relative to the middle seat plate (3), a first cavity is formed in the upper surface of the middle seat plate (3), a second cavity is formed in the lower surface of the upper seat plate (2), and the first cavity and the second 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).
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 each other to form the linear cone (7), and the first cavity and the second cavity are both rectangular pyramid cavities;
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 surface of the rectangular pyramid to the vertex of the rectangular pyramid.
2. The three-dimensional shock absorbing and isolating support according to claim 1, wherein a third cavity for accommodating the middle seat plate (3) is formed in 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 through the elastic assembly, the upper seat plate (2) and the middle seat plate (3) vertically move together relative to the lower seat plate 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.
3. The three-dimensional shock absorbing and isolating support according to claim 2, wherein the elastic component comprises a lower seat plate buffer pad (8) and at least one buffer spring (9), blind holes corresponding to the buffer springs (9) in number are formed in the bottom surface of the third cavity, the lower seat plate buffer pad (8) is arranged on the bottom surface of the third cavity, through holes matched with the blind holes are formed in the lower seat plate buffer pad (8), one end of the buffer spring (9) is connected with the blind holes, and the other end of the buffer spring (9) penetrates through the through holes and then is connected with the lower surface of the middle seat plate (3).
4. A three-dimensional shock absorbing and isolating mount according to claim 3, characterized in that a plurality of said buffer springs (9) are uniformly arranged; one end of the buffer spring (9) connected with the lower surface of the middle seat board (3) is flush with the upper surface of the lower seat board buffer pad (8), and the upper surface of the lower seat board buffer pad (8) is contacted with the lower surface of the middle seat board.
5. The three-dimensional shock absorbing and isolating support according to claim 4, wherein the lower surface of the upper seat plate (2) is provided with an upper seat plate buffer pad (6), the upper surface of the middle seat plate (3) is provided with a middle seat plate buffer pad (5), and the upper seat plate (2) rotates relative to the middle seat plate (3) through the local compression of the upper seat plate buffer pad (6) and the middle seat plate buffer pad (5).
6. The three-dimensional shock absorbing and isolating support according to claim 5, further comprising at least one limiter (1), wherein the limiter (1) is arranged on the upper seat plate (2) and is positioned on the outer side of the outer wall of the middle seat plate (3), and limiting of the movement between the upper seat plate (2) and the middle seat plate (3) is achieved through the limiter (1).
7. The three-dimensional shock absorbing and isolating support according to claim 6, wherein the limit stopper (1) is provided with a shearing opening (1.1), the position of the shearing opening (1.1) in the vertical direction is higher than or equal to the position of the contact surface between the middle seat board buffer pad (5) and the upper seat board buffer pad (6), and the limit stopper (1) is sheared by impact through the shearing opening (1.1).
8. The three-dimensional shock absorbing and isolating support according to claim 7, characterized in that a plurality of the limiters (1) are uniformly arranged along the periphery of the upper seat plate (2), and the limitation of the relative movement between the upper seat plate (2) and the middle seat plate in the horizontal direction is realized by the limiters (1);
The limiter (1) comprises a short side section and a long side section, the short side section and the long side section are perpendicular to each other to form an L-shaped structure, the short side section is arranged on the upper seat plate, the long side section is positioned on the outer sides of the outer walls of the upper seat plate and the middle seat plate, a gap exists between the long side section and the middle seat plate or the long side section and the long side section are contacted with each other, and the shearing opening is arranged on the long side section.
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| CN201911165842.1A CN110965460B (en) | 2019-11-25 | 2019-11-25 | Three-dimensional shock-absorbing and isolating support |
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| CN201911165842.1A CN110965460B (en) | 2019-11-25 | 2019-11-25 | Three-dimensional shock-absorbing and isolating support |
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| CN110965460B true CN110965460B (en) | 2024-04-26 |
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| CN113202204B (en) * | 2021-06-07 | 2023-01-24 | 范雷彪 | Pendulum type support with longitudinal buffering function |
| CN114622661B (en) * | 2022-03-09 | 2022-11-01 | 广州大学 | Self-recovery inclined plane friction limiting energy consumption device |
| 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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| KR101413356B1 (en) * | 2014-02-18 | 2014-07-01 | 조영철 | Seismic isolator utilizing wedge |
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| KR20020079050A (en) * | 2001-04-12 | 2002-10-19 | 주식회사 화인 | earthquake insulating composite bearing |
| JP4257802B1 (en) * | 2008-11-07 | 2009-04-22 | 株式会社美和テック | Bridge bearing device |
| CN103148142A (en) * | 2013-03-15 | 2013-06-12 | 重庆大学 | Three-way frictional damping force adjustable vibration isolator for ship |
| KR101575743B1 (en) * | 2014-06-20 | 2015-12-11 | 한국철도공사 | Vibration damper utilizing wedges |
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