CN218291567U - Anti-pulling hyperboloid spherical shock absorption and isolation device - Google Patents
Anti-pulling hyperboloid spherical shock absorption and isolation device Download PDFInfo
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- CN218291567U CN218291567U CN202221290203.5U CN202221290203U CN218291567U CN 218291567 U CN218291567 U CN 218291567U CN 202221290203 U CN202221290203 U CN 202221290203U CN 218291567 U CN218291567 U CN 218291567U
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Abstract
The utility model relates to an anti-pulling hyperboloid spherical shock absorption and isolation device, which comprises an upper support, a middle support, a lower support and an anti-pulling plate; the top surface of the upper support is fixedly connected with an upper anchoring rod, and the periphery of the bottom surface of the upper support is provided with a baffle plate extending outwards; the lower support is arranged below the upper support, and the middle support is accommodated in a space formed by the upper concave rotating spherical surface of the upper support and the lower concave swinging spherical surface of the lower support; limiting blocks protruding upwards are arranged at four corners of the top surface of the lower support, each baffle of the upper support is respectively accommodated between two adjacent limiting blocks, and the bottom surface of the lower support is fixedly connected with a lower anchoring rod; the middle of the anti-pulling plate is provided with a through hole for the top of the upper support to pass through, the anti-pulling plate is sleeved outside the top of the upper support, a space for the upper support to move horizontally is formed between the anti-pulling plate and the upper support, the peripheral corners of the anti-pulling plate are fixedly connected to the limiting blocks, and the space for vertical movement of each baffle is limited by the anti-pulling plate.
Description
Technical Field
The utility model relates to a subtract isolation bearing technical field, especially relate to anti-pulling hyperboloid is spherical to subtract isolation device.
Background
The spherical isolation bearing that subtracts of hyperboloid that has now generally used does not have anti-pulling ability in vertical, under gravity load and wind load or gravity load and meet earthquake load altogether and vertical earthquake, the support can produce the phenomenon of coming to nothing, leads to superstructure probably to appear toppling and destruction. In addition, when the earthquake with long-period pulses occurs, the hyperboloid spherical seismic isolation and reduction support has single vibration frequency, so that low-frequency resonance is easy to occur with a seismic isolation structure with the hyperboloid spherical seismic isolation and reduction support, and the support displacement exceeds the design limit value.
Through search, the prior art has a technical scheme for solving the technical problems.
The friction swing type shock insulation support with the anti-pulling device comprises an upper seat plate, a lower seat plate, an anchoring bolt, an upper plate assembly, a lower plate assembly, a friction swing type spherical pendulum and an anti-pulling device; the anti-pulling device comprises a plurality of anti-pulling blocks which are symmetrically arranged at the left side and the right side or the front side and the rear side of the shock insulation support, and each anti-pulling block comprises an upper mounting piece, a lower mounting piece and a damping block; the upper mounting piece and the lower mounting piece are respectively connected to the upper end and the lower end of the damping block. The anti-pulling device is installed between the upper seat plate and the lower seat plate, the upper seat plate is provided with a guide groove, the upper end of a tensile pulling block of the anti-pulling device is inserted into the guide groove, and the lower end of the tensile pulling block is connected with the lower seat plate.
However, the support is a one-way support, and the vertical anti-pulling system of the support can only generate horizontal one-way displacement and is only suitable for a highway bridge structure. And the pulling resistance bearing capacity of the pulling resistant block can not be directly calculated, which is inconvenient for design. And when the anti-pulling block is subjected to plastic deformation under the action of an earthquake, the clamping groove phenomenon can occur, and the maintenance and the replacement are not facilitated.
In addition, the granted bulletin number is CN2090403231U, and the name is "a friction pendulum support with tensile function", the friction pendulum support with tensile function is composed of a friction pendulum support component and a tensile device component, the friction pendulum support component comprises an upper connecting plate, an upper support plate, a first curved surface sliding plate, a middle spherical crown plate, a second curved surface sliding plate, a middle main body, a third curved surface sliding plate, a lower support plate and a lower connecting plate which are sequentially arranged from top to bottom; the tensile device assembly is composed of a steel wire rope, and the steel wire rope sequentially penetrates through the pore passages in the upper support plate and the lower support plate to form a closed elliptical ring structure so as to limit the vertical relative movement of the upper support plate and the lower support plate.
However, the steel wire of the friction pendulum support with the tensile function has limited anti-pulling bearing capacity, and is not suitable for being used in extremely rare earthquakes.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide an anti-pulling hyperboloid is spherical to subtract isolation device, this anti-pulling hyperboloid is spherical to subtract isolation device has solved the problem that the anti-pulling ability of current hyperboloid spherical to subtract isolation bearing is not enough and resonance arouses the glide distance of support to surpass the design limit value.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the anti-pulling hyperboloid spherical seismic isolation and reduction device comprises an upper support, a middle support, a lower support and an anti-pulling plate; the top surface of the upper support is fixedly connected with an upper anchoring rod, and the periphery of the bottom surface of the upper support is provided with a baffle plate extending outwards; the lower support is arranged below the upper support, and the middle support is accommodated in a space formed by the upper concave rotating spherical surface of the upper support and the lower concave swinging spherical surface of the lower support; limiting blocks protruding upwards are arranged at four corners of the top surface of the lower support, each baffle of the upper support is respectively accommodated between two adjacent limiting blocks, and the bottom surface of the lower support is fixedly connected with a lower anchoring rod; the middle of the anti-pulling plate is provided with a through hole for the top of the upper support to pass through, the anti-pulling plate is sleeved outside the top of the upper support, a space for the upper support to move horizontally is formed between the anti-pulling plate and the upper support, the peripheral corners of the anti-pulling plate are fixedly connected to the limiting blocks, and the space for vertical movement of each baffle is limited by the anti-pulling plate.
Furthermore, the bottom surface of the upper support is provided with an upper concave rotating spherical surface, the top surface of the middle support is an upper convex rotating spherical surface which is matched with the upper concave rotating spherical surface of the upper support, the bottom surface of the middle support is a lower convex swinging spherical surface, the middle part of the top surface of the lower support is provided with a lower concave swinging spherical surface, and the lower concave swinging spherical surface of the lower support is matched with the lower convex swinging spherical surface of the middle support.
Further, the upper concave rotating spherical surface of the upper support is fixedly connected with a rotating wear-resisting plate jointed with the upper concave rotating spherical surface, the upper convex rotating spherical surface of the middle support is fixedly connected with an upper sliding plate jointed with the upper convex rotating spherical surface, the lower convex swinging spherical surface of the middle support is fixedly connected with a swinging wear-resisting plate, and the lower concave swinging spherical surface of the lower support is fixedly connected with a lower sliding plate jointed with the lower concave swinging spherical surface.
Further, the baffle and the upper support are integrally formed.
Furthermore, the outer side edge of the lower support is flush with the outer side edge of the baffle plate of the upper support.
Furthermore, the height of the baffle is smaller than the height from the bottom surface of the anti-pulling plate to the bottom surface of the limiting block, so that a vertically movable space is formed between the anti-pulling plate and the baffle.
Furthermore, each baffle all passes through shear pin fixed connection on the undersetting top surface.
Furthermore, two side edges of the two opposite baffles are close to the side wall of the limiting block, and a horizontally movable space is formed between the two side edges of the two opposite baffles and the limiting block close to the two side edges of the two opposite baffles.
Furthermore, a horizontally movable space is arranged between the two side edges of each baffle and the adjacent limiting block.
The utility model discloses following beneficial effect has:
the utility model discloses a set up anti board restriction of pulling out and subtract shock isolation device's vertical deformation, reach and increase the anti ability of pulling out of structure. The problem of current hyperboloid spherical subtract isolation bearing resistance to plucking ability not enough is solved, improves its resistance to plucking performance, guarantees the safety of support, and then improves the anti-seismic performance of structure. Through setting up the stopper, limit the baffle through the stopper, reach and guarantee that subtract shock isolation device's distance of sliding does not exceed the design limit value.
And simultaneously, the utility model discloses a horizontal slip, resistance to plucking and limit function mutual independence do not influence each other, are favorable to improving the structure anti-seismic performance under the multidimension earthquake. The utility model discloses simple structure, the installation is convenient with the change, and it is clear and definite to pass power, has multistage antidetonation effect, and it is actual easily to be used for the engineering, is applicable to and uses as subtracting the isolation bearing in bridge and the building engineering field.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of the fixed anti-pulling hyperboloid spherical seismic isolation and reduction device of the present invention;
fig. 2 is a schematic view of the sectional structure of the fixed anti-pulling hyperboloid spherical seismic isolation and reduction device of the present invention;
FIG. 3 is a schematic view of the three-dimensional structure of the one-way sliding anti-pulling hyperboloid spherical seismic isolation and reduction device of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the one-way sliding anti-pulling hyperboloid spherical seismic isolation and reduction device of the present invention;
fig. 5 is the schematic view of the sectional structure of the multi-directional sliding pulling-resistant hyperboloid spherical seismic isolation and reduction device of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments:
referring to fig. 1 to 5, the anti-pulling hyperboloid spherical seismic isolation and reduction device comprises an upper support 1, a middle support 2, a lower support 3 and an anti-pulling plate 4.
The top surface of the upper support 1 is fixedly connected with an upper anchoring rod 11, and the upper anchoring rod 11 is used for connecting external structures on a building main body and the like. The bottom surface of the upper support 1 is provided with an upper concave rotating spherical surface. And a rotary wear-resisting plate 12 which is attached to the concave-upper rotary spherical surface is fixedly connected to the concave-upper rotary spherical surface of the upper support 1. The periphery of the bottom surface of the upper support 1 is provided with a baffle 13 extending outwards, and the baffle 13 and the upper support 1 are integrally formed.
The top surface of the middle support 2 is a convex upward rotating spherical surface matched with the concave upward rotating spherical surface of the upper support 1, and the convex upward rotating spherical surface of the middle support 2 is fixedly connected with an upper sliding plate which is attached to the convex upward rotating spherical surface and made of stainless steel. The bottom surface of the middle support 2 is a downward convex swinging spherical surface which is downward convex, and a swinging wear-resisting plate 21 which is attached to the downward convex swinging spherical surface is fixedly connected to the downward convex swinging spherical surface of the middle support 2.
The middle part of the top surface of the lower support 3 is provided with a concave swinging spherical surface, and the concave swinging spherical surface of the lower support 3 is matched with the convex swinging spherical surface of the middle support 2. And a lower sliding plate attached to the concave swing spherical surface is fixedly connected to the concave swing spherical surface of the lower support 3. The lower support 3 is arranged below the upper support 1, and the middle support 2 is accommodated in a space formed by the enclosed upper concave rotating spherical surface of the upper support 1 and the lower concave swinging spherical surface of the lower support 3. The outer edge of the lower support 3 is located outside the outer edge of the main body part of the upper support 1 except the baffle 13, and in the embodiment, the outer edge of the lower support 3 is flush with the outer edge of the baffle 13 of the upper support 1. And limiting blocks 32 protruding upwards are arranged at four corners of the top surface of the lower support 3. Each baffle 13 of the upper support 1 is respectively accommodated between two adjacent limiting blocks 32. The bottom surface of the lower support 3 is fixedly connected with a lower anchoring rod 33, and the lower anchoring rod 33 is used for connecting external structures below a building foundation and the like.
The lower support 3 is arranged above each limiting block 32, the anti-pulling plate 4 is arranged in the middle of the anti-pulling plate 4, a through hole 41 for the top of the upper support 1 to pass through is formed in the middle of the anti-pulling plate 4, the through hole 41 is larger than the top of the upper support 1, and the anti-pulling plate 4 is sleeved outside the top of the upper support 1 and a space for the horizontal movement of the upper support 1 is formed between the anti-pulling plate 4 and the upper support 1. The peripheral corners of the anti-pulling plate 4 are fixedly connected to the limiting block 32 through high-strength bolts 42. Considering that the seismic isolation and reduction device is slightly lifted in the horizontal sliding process, the height of the baffle 13 is smaller than the height from the bottom surface of the anti-pulling plate 4 to the bottom surface of the limiting block 32, so that a vertically movable space is formed between the anti-pulling plate 4 and the baffle 13.
According to the actual engineering requirements, as a specific implementation mode, each baffle 13 is fixedly connected to the top surface of the lower support 3 through the shear pin 5 to form a fixed anti-pulling hyperboloid spherical seismic isolation and reduction device, which is specifically shown in fig. 1. As another specific embodiment, two side edges of the two opposite baffles 13 are close to the side walls of the limit blocks 32, and the two limit blocks 32 limit the movement of the baffles 13 in the horizontal direction along the connecting line direction of the adjacent limit blocks 32, and a space for horizontal movement is provided between the two side edges of the two opposite baffles 13 and the close limit blocks 32, so as to form a one-way sliding anti-pulling hyperboloid spherical seismic mitigation and isolation device, which is specifically shown in fig. 3. As a third specific embodiment, a space which moves horizontally is provided between two side edges of each baffle 13 and the adjacent limiting block 32 to form a multi-directional sliding anti-pulling hyperboloid spherical seismic isolation and reduction device, see fig. 5 in particular.
Under normal use and a frequently encountered earthquake (E1), the upper, middle and lower supports of the anti-pulling hyperboloid spherical seismic isolation and reduction device do not slide relatively and bear horizontal force transmitted by the upper support. Under rare chance earthquake (E2), this resistance to plucking hyperboloid sphere subtracts isolation device shear pin and cuts, subtracts isolation device and begins the swing, cuts off superstructure's transmission to substructure's inertial force, avoids substructure great damage to appear, improves structure anti-seismic performance. Under the condition of extremely rare earthquake, the maximum horizontal displacement of the anti-pulling hyperboloid spherical seismic isolation and reduction device is limited by the limiting block, and the vertical deformation caused by the vertical earthquake is limited by the anti-pulling plate, so that the structure is effectively prevented from collapsing and overturning.
The above only is the detailed implementation manner of the present invention, not limiting the patent scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. Anti-pulling hyperboloid spherical shock absorption and isolation device, its characterized in that: comprises an upper support (1), a middle support (2), a lower support (3) and an anti-pulling plate (4); the top surface of the upper support (1) is fixedly connected with an upper anchoring rod (11), and the periphery of the bottom surface of the upper support (1) is provided with a baffle (13) extending outwards; the lower support (3) is arranged below the upper support (1), and the middle support (2) is accommodated in a space formed by the enclosed upper concave rotating spherical surface of the upper support (1) and the lower concave swinging spherical surface of the lower support (3); limiting blocks (32) protruding upwards are arranged at four corners of the top surface of the lower support (3), each baffle (13) of the upper support (1) is respectively accommodated between two adjacent limiting blocks (32), and the bottom surface of the lower support (3) is fixedly connected with a lower anchoring rod (33); set up in the middle of anti-pulling plate (4) and supply through-hole (41) that upper bracket (1) top passed, anti-pulling plate (4) cover is established outside upper bracket (1) top and anti-pulling plate (4) and upper bracket (1) between have the space that can supply upper bracket (1) horizontal activity, corner fixed connection is on stopper (32) around anti-pulling plate (4), the space of each baffle (13) vertical activity is restricted by anti-pulling plate (4).
2. The anti-pulling hyperboloid spherical seismic isolation and reduction device according to claim 1, characterized in that: the bottom surface of the upper support (1) is provided with an upper concave rotating spherical surface, the top surface of the middle support (2) is an upper convex rotating spherical surface which is matched with the upper concave rotating spherical surface of the upper support (1) and is convex upwards, the bottom surface of the middle support (2) is a lower convex swinging spherical surface which is convex downwards, the middle part of the top surface of the lower support (3) is provided with a lower concave swinging spherical surface, and the lower concave swinging spherical surface of the lower support (3) is matched with the lower convex swinging spherical surface of the middle support (2).
3. The draft-resistant hyperboloid spherical seismic isolation and reduction device according to claim 2, wherein: fixedly connected with pastes the rotation antifriction plate (12) that the concave rotation sphere of upper bracket (1) goes up the concave rotation sphere, and the epirelief of well support (2) rotates sphere fixedly connected with laminating epirelief and rotates the upper slide of sphere, fixedly connected with swing antifriction plate (21) on the lower sunken swing sphere of well support (2), the lower slide of the lower sunken swing sphere of fixedly connected with laminating on the lower sunken swing sphere of undersetting (3).
4. The anti-pulling hyperboloid spherical seismic isolation and reduction device according to claim 1, characterized in that: the baffle (13) and the upper support (1) are integrally formed.
5. The draft-resistant hyperboloid spherical seismic isolation and reduction device according to claim 1, wherein: the outer side edge of the lower support (3) is flush with the outer side edge of the baffle (13) of the upper support (1).
6. The draft-resistant hyperboloid spherical seismic isolation and reduction device according to claim 1, wherein: the height of the baffle (13) is smaller than the height from the bottom surface of the anti-pulling plate (4) to the bottom surface of the limiting block (32), so that a vertical movable space is formed between the anti-pulling plate (4) and the baffle (13).
7. The draft-resistant hyperboloid spherical seismic isolation and reduction device according to claim 1, wherein: each baffle (13) is fixedly connected to the top surface of the lower support (3) through a shear pin (5).
8. The anti-pulling hyperboloid spherical seismic isolation and reduction device according to claim 1, characterized in that: wherein two side edges of the two opposite baffles (13) are close to the side walls of the limiting blocks (32), and a horizontally movable space is arranged between the two side edges of the two opposite baffles (13) and the adjacent limiting blocks (32).
9. The draft-resistant hyperboloid spherical seismic isolation and reduction device according to claim 1, wherein: horizontal movable spaces are arranged between the edges of the two sides of each baffle (13) and the adjacent limiting blocks (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290203.5U CN218291567U (en) | 2022-05-27 | 2022-05-27 | Anti-pulling hyperboloid spherical shock absorption and isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290203.5U CN218291567U (en) | 2022-05-27 | 2022-05-27 | Anti-pulling hyperboloid spherical shock absorption and isolation device |
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| Publication Number | Publication Date |
|---|---|
| CN218291567U true CN218291567U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221290203.5U Active CN218291567U (en) | 2022-05-27 | 2022-05-27 | Anti-pulling hyperboloid spherical shock absorption and isolation device |
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| CN (1) | CN218291567U (en) |
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