CN216664496U - Anti-pulling self-resetting composite shock insulation support - Google Patents
Anti-pulling self-resetting composite shock insulation support Download PDFInfo
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- CN216664496U CN216664496U CN202220167929.3U CN202220167929U CN216664496U CN 216664496 U CN216664496 U CN 216664496U CN 202220167929 U CN202220167929 U CN 202220167929U CN 216664496 U CN216664496 U CN 216664496U
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Abstract
The utility model discloses a drawing-resistant self-resetting composite shock insulation support which comprises a shock insulation support consisting of a lead core, a rubber shock insulation pad, an upper support steel plate and a lower support steel plate, and a drawing-resistant self-resetting mechanism arranged on the periphery of the shock insulation support, wherein the drawing-resistant self-resetting mechanism comprises an upper connecting plate, a lower connecting plate and a superelasticity shape memory alloy screw rod; the upper connecting plate is fixed on the upper support steel plate, and the lower connecting plate is fixed on the lower support steel plate; parallel long round holes parallel to the side lines are formed in the upper connecting plate, and vertical long round holes perpendicular to the side lines are formed in the lower connecting plate; two ends of the superelastic shape memory alloy screw are connected in the parallel long round holes and the vertical long round holes in a sliding or rolling mode. The composite shock insulation support has better horizontal shock insulation and vertical tensile capacity, when the composite shock insulation support is under the action of vertical tensile force, the superelasticity shape memory alloy screw is pulled to play a role in vertical limiting, and the overturning problem of the high-rise building when the shock insulation support is adopted is effectively solved.
Description
Technical Field
The utility model relates to the technical field of engineering shock insulation, in particular to a pull-resistant self-resetting composite shock insulation support.
Background
The seismic isolation technology is an effective means for improving the seismic capacity of structures (buildings, bridges and the like), and the period of an upper structure is prolonged by arranging a seismic isolation support between a structure foundation, a layer or between a main beam and a pier, so that the seismic energy transmitted to the upper structure by an earthquake is isolated, and the damage or damage of the earthquake to the structures is reduced. At present, the existing vibration isolation support has three types: the rubber shock insulation support is the shock insulation support which is most widely applied and mature in technology, and has the characteristics of clear shock absorption mechanism, large horizontal deformation capacity, convenience in construction and installation and the like. However, the laminated rubber is bonded and connected with the stiffening steel plate inside the rubber shock-insulation support, so that the vertical tensile capacity of the rubber shock-insulation support is weaker. If the high-rise building structure adopts the rubber shock insulation support, when receiving vertical earthquake effect or taking place great horizontal shear deformation, the rubber shock insulation support is easily drawn, and vertical pulling force can't be resisted to the adhesive force of weak between rubber layer and the stiffening steel sheet, leads to the shock insulation support to take place to destroy to make building structure take place to topple and collapse. In addition, the rubber shock insulation support generates large horizontal shear deformation in rare earthquakes, so that the rubber shock insulation support is seriously damaged, and great repair cost is brought to the recovery of the structure after the earthquake. The weak tensile capacity of the rubber shock isolation support and the damage of the rubber shock isolation support in rare earthquakes influence the popularization and the application of the existing shock isolation technology in the structure and limit the development of the structure in high-intensity earthquake areas.
SUMMERY OF THE UTILITY MODEL
Based on the type of the existing shock insulation support, the utility model aims to provide a composite shock insulation support which can be horizontally limited and vertically pulled and has a self-resetting function. In addition, the good self-resetting capability is provided for the seismic isolation support by utilizing the superelasticity characteristic of the shape memory alloy, the self-resetting capability can effectively reduce the repair cost and the reinforcement cost of the structure after the earthquake, and the overall restoring capability of the structure is improved.
The technical scheme adopted by the utility model is as follows: the anti-drawing self-resetting composite shock insulation support comprises a shock insulation support consisting of a lead core, a rubber shock insulation pad, an upper support steel plate and a lower support steel plate, and an anti-drawing self-resetting mechanism arranged on the periphery of the shock insulation support, wherein the anti-drawing self-resetting mechanism comprises an upper connecting plate, a lower connecting plate and a superelasticity shape memory alloy screw rod; the upper connecting plate is fixed on the upper support steel plate, and the lower connecting plate is fixed on the lower support steel plate; parallel long round holes parallel to the side lines are formed in the upper connecting plate, and vertical long round holes perpendicular to the side lines are formed in the lower connecting plate; two ends of the superelastic shape memory alloy screw are connected in the parallel long round holes and the vertical long round holes in a sliding or rolling mode.
The device further comprises a bearing and a nut, wherein the upper connecting plate is provided with an L-shaped groove at the edge of the parallel long circular hole, and the lower connecting plate is provided with an L-shaped groove at the edge of the vertical long circular hole; after one end of the superelasticity shape memory alloy screw rod penetrates through the parallel long round holes of the upper connecting plate, a bearing is sleeved on the superelasticity shape memory alloy screw rod, so that the outer ring of the bearing is tangent to the side wall of the L-shaped groove in the upper connecting plate, and a nut for limiting the bearing is arranged at the end part of the superelasticity shape memory alloy screw rod; after the other end of the hyperelastic shape memory alloy screw penetrates through the vertical long round hole of the lower connecting plate, a bearing is sleeved in the hyperelastic shape memory alloy screw, an outer ring of the bearing is tangent to the side wall of the L-shaped groove in the lower connecting plate, and a nut for limiting the bearing is arranged at the end part of the hyperelastic shape memory alloy screw.
Furthermore, the length of the parallel long circular holes in the upper connecting plate and the length of the vertical long circular holes in the lower connecting plate are 2 times of the designed displacement of the shock insulation support.
Further, the anti-drawing self-resetting mechanism has two types in the peripheral arrangement mode of the shock insulation support: firstly, two vibration isolation supports are respectively arranged on the opposite sides of the vibration isolation supports, and 2 vibration isolation supports are arranged in total; secondly, the four sides of the vibration isolation supports are all arranged, and the total number of the vibration isolation supports is 4.
Further, two or more superelastic shape memory alloy screws are disposed in each of the stretch resistant self-resetting mechanisms.
The utility model has the beneficial effects that: compared with the prior art, the utility model has the advantages of simple structure, flexible design, convenient construction and better horizontal shock insulation and vertical tensile resistance. Under the action of a medium and small earthquake, when the shock insulation support generates horizontal shearing deformation, the super-elastic shape memory alloy screw rod in the anti-drawing self-resetting mechanism moves in the long circular holes of the upper connecting plate and the lower connecting plate without stress. Under the action of rare earthquakes, the superelasticity shape memory alloy screw rod is contacted with the wall of the long round hole, so that the superelasticity shape memory alloy screw rod starts to be bent, and the horizontal limiting effect is achieved; when the composite shock insulation support is under the action of vertical tension, the superelasticity shape memory alloy screw is tensioned to play a role in vertical limiting, and the overturning problem when the shock insulation support is adopted in a high-rise building is effectively solved. In addition, the support has good self-resetting capability due to the superelasticity characteristic of the superelasticity shape memory alloy screw, the self-resetting capability of the support reduces the cost for repairing or reinforcing the structure, and the restorability of the structure after the earthquake can be effectively and quickly improved integrally.
Drawings
FIG. 1 is a schematic structural diagram of a drawing-resistant self-resetting composite seismic isolation support disclosed by the utility model;
FIG. 2 is a front view of the anti-drawing self-resetting composite seismic isolation bearing disclosed by the utility model;
FIG. 3 is a top view of the anti-drawing self-resetting composite seismic isolation bearing disclosed by the utility model;
fig. 4 is a schematic structural view of the anti-pulling self-resetting mechanism disclosed by the utility model;
FIG. 5 is a schematic structural diagram of an upper connecting plate disclosed by the present invention;
FIG. 6 is a schematic structural diagram of a lower connecting plate disclosed in the present invention;
FIG. 7 is a schematic view of a bearing structure disclosed in the present invention;
FIG. 8 is a schematic view of a superelastic shape memory alloy screw according to the present disclosure.
Reference numerals are as follows: 1. a lead core; 2. a rubber shock-isolation cushion; 3. an upper bracket steel plate; 4. a lower support steel plate; 5. the drawing-resistant self-resetting mechanism; 6. an upper connecting plate; 61. parallel oblong holes; 62. an L-shaped groove; 7. a lower connecting plate; 71. a vertical slotted hole; 8. a superelastic shape memory alloy screw; 9. a bearing; 10. and a nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
Example 1:
referring to fig. 1-8, the embodiment discloses a tensile-pulling-resistant self-resetting composite seismic isolation support, which comprises a seismic isolation support consisting of a lead core 1, a rubber seismic isolation cushion 2, an upper support steel plate 3 and a lower support steel plate 4, and a tensile-pulling-resistant self-resetting mechanism 5 arranged around the seismic isolation support.
Referring to fig. 4, the anti-pullout self-resetting mechanism 5 includes an upper connection plate 6, a lower connection plate 7, and a superelastic shape memory alloy screw 8. The upper connecting plate 6 is fixed on the upper support steel plate 3 through welding or bolt connection, and the lower connecting plate 7 is fixed on the lower support steel plate 4 through welding or bolt connection. Parallel oblong holes 61 parallel to the sidelines are formed in the upper connecting plate 6, and vertical oblong holes 71 perpendicular to the sidelines are formed in the lower connecting plate 7. Two ends of the super elastic shape memory alloy screw 8 are connected with the parallel long round holes 61 and the vertical long round holes 71 in a sliding or rolling mode. Specifically, the two ends of the superelastic shape memory alloy screw 8 of this embodiment are slidably connected as follows: the anti-drawing self-resetting mechanism 5 further comprises a bearing 9 and a nut 10, an L-shaped groove 62 (namely a stepped groove) is formed in the edge of the parallel long circular hole 61 of the upper connecting plate 6, and an L-shaped groove is formed in the edge of the vertical long circular hole 71 of the lower connecting plate 7. The end of the super elastic shape memory alloy screw 8 is provided with a thread with a certain length. After one end of the superelasticity shape memory alloy screw 8 penetrates through the parallel long round holes 61 of the upper connecting plate 6, the superelasticity shape memory alloy screw 8 is sleeved with the bearing 9, the outer ring of the bearing 9 is tangent to the side wall of the L-shaped groove 62 in the upper connecting plate 6, and the end part of the superelasticity shape memory alloy screw 8 is provided with the nut 10 for limiting the bearing 9. After the other end of the superelasticity shape memory alloy screw 8 penetrates through the vertical long round hole 71 of the lower connecting plate 7, the superelasticity shape memory alloy screw 8 is sleeved with the bearing 9, the outer ring of the bearing 9 is tangent to the side wall of the L-shaped groove 62 in the lower connecting plate 7, and the end of the superelasticity shape memory alloy screw 8 is provided with the nut 10 for limiting the bearing 9. When the superelastic shape memory alloy screw 8 moves along the parallel oblong holes 61 of the upper connecting plate 6 and the vertical oblong holes 71 of the lower connecting plate 7, the outer ring of the bearing 9 rolls along the side wall of the L-shaped groove 62.
Further, the height of the L-shaped groove 62 is greater than the width of the bearing 9, so that the outer ring of the bearing 9 is entirely located in the L-shaped groove. The outer diameter of the nut 10 is larger than the width of the parallel long circular hole 61 of the upper connecting plate 6 and the width of the vertical long circular hole 71 of the lower connecting plate 7, so that the super-elastic shape memory alloy screw 8 is pulled under the action of vertical pulling force.
Preferably, the length of the parallel oblong holes 61 in the upper connecting plate 6 and the vertical oblong holes 71 in the lower connecting plate 7 is 2 times of the designed displacement of the seismic isolation bearing.
The number of the hyperelastic shape memory alloy screws 8 in the anti-drawing self-resetting mechanism 5 can be designed according to the vertical anti-overturning and horizontal displacement requirements of the structure under the earthquake action, and 1 or more screws can be arranged; correspondingly, 1 or more parallel oblong holes 61 on the upper connecting plate 6 and one or more vertical oblong holes 71 on the lower connecting plate 7 are also arranged. This embodiment provides two superelastic shape memory alloy screws 8 per stretch resistant self-resetting mechanism 5.
Referring to fig. 1-3, in the present embodiment, a total of 4 anti-pulling self-resetting mechanisms 5 are respectively arranged on the periphery of the seismic isolation support. An upper connecting plate 6 and a lower connecting plate 7 of each anti-drawing self-resetting mechanism 5 are fixedly connected with an upper support steel plate 3 and a lower support steel plate 4 of the shock insulation support in a welding mode, and horizontal shearing deformation of the shock insulation support cannot be influenced. In other embodiments, the anti-pulling self-resetting mechanism 5 is arranged on the opposite side of the vibration isolation support respectively, and the number of the anti-pulling self-resetting mechanisms is 2 in total.
When the composite shock insulation support bears vertical tensile force, the rubber shock insulation cushion 2 drives the upper connecting plate 6 fixed on the upper support steel plate 3 to move upwards under the action of the tensile force, so that the hyperelastic shape memory alloy screw 8 is pulled, and the vertical tensile deformation of the shock insulation support is limited. When the composite shock insulation support bears vertical pressure, the rubber shock insulation cushion 2 is compressed and deformed, so that the upper connecting plate 6 moves downwards along the hyperelastic shape memory alloy screw 8, and the vertical pressure is completely borne by the rubber shock insulation cushion 2 and cannot be transmitted to the anti-drawing self-resetting mechanism 5.
Under the action of a medium-small earthquake, when the vibration isolation support generates horizontal shear deformation, the superelasticity shape memory alloy screw 8 moves along the parallel long circular holes 61 of the upper connecting plate 6 or moves along the vertical long circular holes 71 of the lower connecting plate 7, and meanwhile, the bearings 9 at two ends of the superelasticity shape memory alloy screw 8 are driven to roll along the side walls of the L-shaped grooves. In rare earthquakes, when the shock-isolation support is subjected to shear deformation in the horizontal direction, the superelasticity shape memory alloy screw 8 moves to the end part of the parallel long circular hole 61 or the end part of the vertical long circular hole 71, so that the superelasticity shape memory alloy screw 8 is bent, and the composite shock-isolation support is limited from being subjected to large shear deformation.
In conclusion, the anti-drawing self-resetting composite shock-insulation support provided by the utility model keeps the capability of prolonging the self-vibration period of the structure and reducing the earthquake response of the structure. Meanwhile, the anti-pulling self-resetting mechanism 5 improves the vertical tensile capacity which the shock insulation support does not have and the limiting capacity under rare earthquakes, and the super-elastic characteristic of the super-elastic shape memory alloy screw 8 is utilized to provide good energy consumption capacity and self-resetting capacity for the shock insulation support.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a tensile is drawn from compound isolation bearing of restoring to throne, includes and constitutes isolation bearing, its characterized in that by lead core (1), rubber shock insulation pad (2), upper bracket steel sheet (3), undersetting steel sheet (4): the anti-drawing self-resetting mechanism (5) is arranged on the periphery of the seismic isolation support, and the anti-drawing self-resetting mechanism (5) comprises an upper connecting plate (6), a lower connecting plate (7) and a superelasticity shape memory alloy screw (8); the upper connecting plate (6) is fixed on the upper support steel plate (3), and the lower connecting plate (7) is fixed on the lower support steel plate (4); parallel long round holes (61) parallel to the sidelines are formed in the upper connecting plate (6), and vertical long round holes (71) perpendicular to the sidelines are formed in the lower connecting plate (7); two ends of the super-elastic shape memory alloy screw (8) are connected in the parallel long round holes (61) and the vertical long round holes (71) in a sliding or rolling mode.
2. The anti-drawing self-resetting composite seismic isolation bearing according to claim 1, characterized by further comprising a bearing (9) and a nut (10), wherein the upper connecting plate (6) is provided with L-shaped grooves (62) at the edges of the parallel oblong holes (61), and the lower connecting plate (7) is provided with L-shaped grooves at the edges of the vertical oblong holes (71); after one end of the superelasticity shape memory alloy screw rod (8) penetrates through the parallel long circular holes (61) of the upper connecting plate (6), a bearing (9) is sleeved on the superelasticity shape memory alloy screw rod (8), the outer ring of the bearing (9) is tangent to the side wall of the L-shaped groove (62) in the upper connecting plate (6), and a nut (10) for limiting the bearing (9) is arranged at the end part of the superelasticity shape memory alloy screw rod (8); after the other end of the superelasticity shape memory alloy screw rod (8) penetrates through the vertical long round hole (72) of the lower connecting plate (7), a bearing (9) is sleeved in the superelasticity shape memory alloy screw rod (8), the outer ring of the bearing (9) is tangent to the side wall of the L-shaped groove (62) in the lower connecting plate (7), and a nut (10) for limiting the bearing (9) is arranged at the end part of the superelasticity shape memory alloy screw rod (8).
3. The anti-drawing self-resetting composite seismic isolation bearing according to claim 2, characterized in that the lengths of the parallel oblong holes (61) in the upper connecting plate (6) and the vertical oblong holes (71) in the lower connecting plate (7) are 2 times of the design displacement of the seismic isolation bearing.
4. The anti-drawing self-resetting composite seismic isolation bearing according to claim 2, wherein the anti-drawing self-resetting mechanisms (5) are arranged around the seismic isolation bearing in two ways: firstly, arranging 2 vibration isolation supports on the opposite sides of the vibration isolation supports respectively; secondly, the four sides of the vibration isolation supports are all arranged, and the total number of the vibration isolation supports is 4.
5. The draw-resistant self-restoring composite seismic isolation mount according to claim 2, wherein two or more superelastic shape memory alloy screws (8) are provided in each draw-resistant self-restoring mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220167929.3U CN216664496U (en) | 2022-01-21 | 2022-01-21 | Anti-pulling self-resetting composite shock insulation support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220167929.3U CN216664496U (en) | 2022-01-21 | 2022-01-21 | Anti-pulling self-resetting composite shock insulation support |
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| CN216664496U true CN216664496U (en) | 2022-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215192A (en) * | 2022-01-21 | 2022-03-22 | 四川大学 | Anti-pulling self-resetting composite shock insulation support |
| CN115405008A (en) * | 2022-09-16 | 2022-11-29 | 郭微 | Swing and sliding composite support in integrated structure |
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2022
- 2022-01-21 CN CN202220167929.3U patent/CN216664496U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215192A (en) * | 2022-01-21 | 2022-03-22 | 四川大学 | Anti-pulling self-resetting composite shock insulation support |
| CN115405008A (en) * | 2022-09-16 | 2022-11-29 | 郭微 | Swing and sliding composite support in integrated structure |
| CN115405008B (en) * | 2022-09-16 | 2024-02-13 | 郭微 | Swing and sliding composite support in integrated structure |
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