Pre-deformation device for rubber seismic isolation bearing

Abstract

This utility model provides a pre-deformation device for rubber seismic isolation bearings, belonging to the field of building construction technology. It includes a fixing component and a pre-deformation component. The fixing component is mounted on a lower support pier. The pre-deformation component includes a support member and a driving member. The support member is mounted on the fixing component, and its upper end extends to one side of the upper connecting plate of the seismic isolation bearing. The driving member is detachably mounted on the upper part of the support member and has a degree of freedom in the horizontal direction. The free end of the driving member is used to connect to the upper connecting plate and drive the upper connecting plate to move horizontally. The pre-deformation device for rubber seismic isolation bearings provided by this utility model can effectively offset the effects of concrete shrinkage by applying deformation in advance, avoiding horizontal deformation of conventional rubber seismic isolation bearings due to concrete shrinkage. This ensures the deformation capacity of the seismic isolation bearing during rare earthquakes and improves the safety of seismic isolation buildings during construction and subsequent use.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and more specifically, it relates to a pre-deformation device for rubber seismic isolation bearings. Background Technology

[0002] Currently, many seismically isolated buildings use rubber seismic isolation bearings. Rubber seismic isolation bearings have low horizontal stiffness, which can reduce the impact of temperature on the building. Therefore, the planar length of seismically isolated buildings using rubber seismic isolation bearings can be greater than that of ordinary seismic-resistant buildings.

[0003] However, during the construction of ultra-long seismic isolation buildings, the concrete will shrink during molding, and the conventional rubber seismic isolation bearing design will undergo horizontal deformation due to the changes in concrete, affecting the deformation capacity of the seismic isolation bearing during rare earthquakes, and thus affecting the safety of the seismic isolation building. Utility Model Content

[0004] The purpose of this invention is to provide a pre-deformation device for rubber seismic isolation bearings, which aims to solve the problem of deformation of rubber seismic isolation bearings in ultra-long seismic isolation buildings as the concrete hardens.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pre-deformation device for a rubber seismic isolation bearing, comprising:

[0006] The fixing component is located on the lower support pier;

[0007] The pre-deformation assembly includes a support member and a drive member. The support member is disposed on the fixed assembly, and the upper end of the support member extends to one side of the upper connecting plate of the seismic isolation bearing. The drive member is detachably mounted on the upper part of the support member, and the drive member has a degree of freedom in the horizontal direction. The free end of the drive member is used to connect to the upper connecting plate and drive the upper connecting plate to move horizontally.

[0008] In another embodiment of this application, the driving member passes through the support member, and the driving member is threadedly engaged or snapped into the support member for fixation.

[0009] In another embodiment of this application, the driving component includes:

[0010] A threaded rod, wherein a driving part is provided at the first end of the threaded rod;

[0011] Correspondingly, the support member has a through hole with an internal thread; the threaded rod passes through the through hole and abuts against the side wall of the upper connecting plate, and the driving part is located on the side of the support member away from the upper connecting plate.

[0012] In another embodiment of this application, the driving component is horizontally fixedly installed on the support component, and the driving component is retractable.

[0013] In another embodiment of this application, the fixing component includes:

[0014] Two clamping members are symmetrically arranged on both sides of the lower support along its length.

[0015] The clamping member is attached to the outer surface of the lower support; the supporting member is vertically connected to the clamping member.

[0016] Two sets of connecting rods are symmetrically arranged on both sides of the lower support in the width direction; the connecting rods are used to connect the two clamping members.

[0017] In another embodiment of this application, the fixing component further includes:

[0018] Multiple locking elements are provided, which are detachably mounted on the connecting rod and are used to fix the connecting rod to the clamping member.

[0019] In another embodiment of this application, the support member is a plurality of such support members, which are spaced apart on the clamping member.

[0020] In another embodiment of this application, the pre-deformation assembly has two components, and the two pre-deformation components are respectively used to connect two adjacent sidewalls of the upper connecting plate.

[0021] In another embodiment of this application, a positioning element is installed at the free end of the driving element, and the positioning element is attached to the upper connecting plate.

[0022] In another embodiment of this application, the positioning element is an L-shaped structure.

[0023] The beneficial effects of the rubber seismic isolation bearing pre-deformation device provided by this utility model are as follows: Compared with the prior art, when the concrete under construction changes due to molding shrinkage, the pre-deformation device can effectively offset the effects of concrete shrinkage by applying deformation in advance, avoiding horizontal deformation of conventional rubber seismic isolation bearings due to concrete changes, thereby ensuring the deformation capacity of the seismic isolation bearings during rare earthquakes and improving the safety of seismic isolation buildings during construction and subsequent use; the detachable and installable characteristics of the driving component allow the device to be easily disassembled after completing the seismic isolation bearing pre-deformation operation without affecting the performance of the seismic isolation bearings under normal use conditions, thus fulfilling the special functional requirements during construction while ensuring the original seismic isolation effect of the seismic isolation bearings, enhancing the flexibility and versatility of the device; the entire pre-deformation device has a simple structure, is easy to install and operate, and can be adapted to seismic isolation building construction scenarios that extensively use rubber seismic isolation bearings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the pre-deformation device for the rubber seismic isolation bearing provided in this embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the connection structure between the rubber seismic isolation bearing pre-deformation device and the seismic isolation bearing provided in an embodiment of this utility model;

[0027] Figure 3 A schematic diagram of the pre-deformation device for a rubber seismic isolation bearing provided in another embodiment of this utility model.

[0028] In the diagram: 1. Upper connecting plate; 2. Clamping component; 3. Connecting component; 4. Support component; 5. Driving component; 6. Upper support pier; 7. Lower support pier; 8. Seismic isolation bearing; 9. Lower connecting plate; 10. Locking component; 11. Positioning component; 12. Adapter component. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] Please see Figure 1 and Figure 2 The pre-deformation device for rubber seismic isolation bearings provided by this utility model will now be described. The pre-deformation device for rubber seismic isolation bearings includes a fixing component and a pre-deformation component; the fixing component is disposed on the lower support pier 7; the pre-deformation component includes a support member 4 and a driving member 5, the support member 4 is disposed on the fixing component, and the upper end of the support member 4 extends to one side of the upper connecting plate 1 of the seismic isolation bearing 8; the driving member 5 is detachably installed on the upper part of the support member 4, the driving member 5 has a degree of freedom in the horizontal direction, and the free end of the driving member 5 is used to connect to the upper connecting plate 1 and drive the upper connecting plate 1 to move horizontally.

[0031] The working principle of the rubber seismic isolation bearing pre-deformation device provided by this utility model is as follows:

[0032] After the lower connecting plate of the seismic isolation bearing 8 is pre-embedded in place, the lower support pier 7 is poured. After the concrete strength of the lower support pier 7 reaches more than 75% of the design strength, the lower connecting plate 9 of the seismic isolation bearing 8 is fixed to the lower support pier 7. Then, the seismic isolation bearing 8 is pre-deformed by the rubber seismic isolation pre-deformation device. The fixing assembly is installed on the lower support pier 7, and the support member 4 installed on the fixing assembly extends upward to the upper end of the seismic isolation bearing 8. A driving member 5 is installed on the upper part of the support member 4. The free end of the driving member 5 moves horizontally and abuts against the upper connecting plate 1 of the seismic isolation bearing 8, pushing the upper end of the seismic isolation bearing 8 away from the support member 4, so that the seismic isolation bearing 8 achieves the expected horizontal deformation. After deformation, the seismic isolation bearing 8 is tilted. Then, the upper support 6 and the seismic isolation layer beam and slab are constructed. After the concrete of the upper support 6 and the seismic isolation layer beam and slab has initially set, the pre-deformation device is removed. As the concrete hardens and shrinks, the pre-deformation applied to the seismic isolation bearing 8 gradually disappears, and the seismic isolation bearing 8 changes from tilted to vertical.

[0033] Optionally, the deformation of the seismic isolation bearing 8 due to concrete shrinkage in ultra-long seismic isolation buildings can be calculated. In this scheme, after calculating the deformation, a pre-deformation device is used to apply the calculated deformation in reverse to the seismic isolation bearing 8. Then, the top beam slab of the seismic isolation layer is poured. After the concrete initially sets, the pre-deformation device is removed. As the concrete hardens, the pre-deformation of the seismic isolation bearing 8 gradually decreases until it disappears, and the seismic isolation bearing 8 changes from inclined to vertical. In ultra-long seismic isolation buildings installed using the above measures, the seismic isolation bearing 8 will not tilt, and the overall structural stress performance and seismic resistance performance are significantly better than seismic isolation buildings without such measures.

[0034] The rubber seismic isolation bearing pre-deformation device provided by this utility model is fixed on the lower support 7 by a fixing component, providing a stable installation foundation for the entire device and ensuring the stability of the device during subsequent operations. The support member 4 in the pre-deformation component is set on the fixing component and its upper end extends to one side of the upper connecting plate 1 of the seismic isolation bearing 8, providing a reliable support point and installation position for the driving member 5; the driving member 5 is detachably installed on the upper part of the support member 4 and has a horizontal degree of freedom. Its free end is connected to the upper connecting plate 1 and can drive the upper connecting plate 1 to move horizontally. This structural design enables the active application of horizontal pre-deformation to the upper connecting plate 1 of the seismic isolation bearing 8 during the construction of ultra-long seismic isolation buildings.

[0035] Compared with existing technologies, the pre-deformation device for rubber seismic isolation bearings provided by this utility model can effectively offset the effects of concrete shrinkage when the concrete changes due to molding shrinkage. This avoids horizontal deformation of the conventional seismic isolation bearing 8 due to concrete changes, thus ensuring the deformation capacity of the seismic isolation bearing 8 during rare earthquakes and improving the safety of the seismic isolation building during construction and subsequent use. The detachable installation feature of the driving component 5 allows the device to be easily disassembled after completing the pre-deformation operation of the seismic isolation bearing 8, without affecting the normal operation of the seismic isolation bearing 8. The device's performance under operating conditions not only meets the special functional requirements during construction but also ensures the original seismic isolation effect of the seismic isolation bearing 8, enhancing the flexibility and versatility of the device. The entire pre-deformation device has a simple structure, is easy to install and operate, and can be adapted to the construction scenarios of seismic isolation buildings that extensively use rubber seismic isolation bearings. It has good engineering application prospects and effectively solves the technical problem that the performance of the seismic isolation bearing 8 is affected by the shrinkage of concrete during the construction of ultra-long seismic isolation buildings. It reduces construction risks and building safety hazards, and also provides more reliable technical support for the design and construction of ultra-long seismic isolation buildings.

[0036] In some possible embodiments, the drive member 5 passes through the support member 4, and the drive member 5 is threaded or snapped into the support member 4.

[0037] A through hole is provided on the support member 4, and the drive member 5 passes through the through hole laterally and is connected to the support member 4. When adjustment is required, the drive member 5 is moved relative to the support member 4 to change the length of the drive member 5 extending out of the support member 4, thereby adjusting the inclination of the seismic isolation bearing 8.

[0038] When the driving component 5 is threadedly engaged with the support component 4, the rotational motion of the driving component 5 can be converted into linear motion in the horizontal direction by rotating the driving component 5, thereby driving the upper connecting plate 1 connected to the free end of the driving component 5 to move horizontally. The threaded engagement method, thanks to the precision of threaded transmission, enables fine adjustment of the horizontal displacement of the driving component 5, thereby precisely controlling the pre-deformation of the upper connecting plate 1. This effectively meets the precise requirements for the pre-deformation degree of the seismic isolation bearing 8 under different construction scenarios, improves the accuracy and controllability of the pre-deformation operation, and ensures the deformation capacity of the seismic isolation bearing 8 during rare earthquakes.

[0039] When the driving component 5 is snapped into place with the support component 4, it can be snapped into different positions on the support component 4 according to the actual pre-deformation requirements. Through the positioning function of the snap-fit ​​structure, the horizontal movement distance and direction of the driving component 5 can be precisely controlled, thereby driving the upper connecting plate 1 to achieve the required pre-deformation. The snap-fit ​​fixing method, with its diverse snap-fit ​​positions, allows for rapid installation and position adjustment of the driving component 5, facilitating flexible operation by construction personnel according to actual conditions. This greatly improves the installation and use efficiency of the pre-deformation device and shortens construction time.

[0040] After the pre-deformation operation is completed, whether it is threaded or snap-fit, the connection between the drive component 5 and the support component 4 can be easily released, and the drive component 5 can be disassembled.

[0041] In some possible embodiments, such as Figure 1 As shown, the driving component 5 includes a threaded rod, the first end of which is provided with a driving part; the support component 4 has a through hole with an internal thread; the threaded rod passes through the through hole and abuts against the side wall of the upper connecting plate 1, and the driving part is located on the side of the support component 4 away from the upper connecting plate 1.

[0042] The threaded rod passes through the through hole of the support member 4. By rotating the threaded rod through the drive unit, the threaded rod moves horizontally through the engagement of the threaded rod with the internal thread of the through hole until its first end abuts against the side wall of the upper connecting plate 1. The drive unit can be a handle or a hexagonal head.

[0043] When prestress needs to be applied, the drive unit is continuously rotated, and the threaded rod is further pushed towards the seismic isolation support 8 under the action of threaded transmission, applying a horizontal thrust to the upper connecting plate 1.

[0044] When disassembly is required, the drive unit is rotated in the opposite direction to disengage the threaded rod from the through hole, thereby releasing the constraint on the upper connecting plate 1 and facilitating subsequent disassembly.

[0045] Because the lead of the thread is usually small, the axial displacement of the threaded rod is also relatively small when the drive unit is rotated. By controlling the rotation angle of the drive unit, the pre-deformation of the upper connecting plate 1 can be precisely adjusted, which can meet the strict requirements of the pre-deformation accuracy of the seismic isolation support 8.

[0046] In addition, during the pre-deformation process, once the required pre-deformation amount is reached, the friction between the threaded pairs can prevent the threaded rod from loosening on its own, ensuring that the pre-deformation amount remains stable during construction.

[0047] In another embodiment, the drive member 5 is horizontally fixedly mounted on the support member 4, and the drive member 5 is telescopically oriented.

[0048] The fixed end of the drive component 5 is vertically installed on the side of the support component 4 facing the seismic isolation bearing 8. The drive component 5 can be a telescopic device such as a cylinder or a hydraulic cylinder.

[0049] When prestress needs to be applied, the drive member 5 begins to elongate, and the movable end of the drive member 5 pushes the upper part of the seismic isolation bearing 8 to move horizontally.

[0050] When dismantling is required, the drive component 5 retracts, and the movable end of the drive component 5 separates from the seismic isolation support 8. After the drive component 5 retracts, the drive component 5 can be disassembled individually or the fixing component and the pre-deformation component can be disassembled in stages.

[0051] The drive component 5 is horizontally fixed and retractable, giving its horizontal movement clear guidance and controllability. By precisely controlling the extension and retraction length of the drive component 5, the horizontal movement distance of the connecting plate 1 on the seismic isolation bearing 8 can be accurately adjusted, thereby achieving precise setting of the pre-deformation amount of the seismic isolation bearing 8. Furthermore, the retractable design of the drive component 5 facilitates operation by workers and improves construction efficiency.

[0052] Taking the driving component 5 as a hydraulic cylinder as an example, the hydraulic cylinder is horizontally fixedly installed on the support component 4, and the extension and retraction of the cylinder is controlled by the hydraulic system. The free end of the hydraulic cylinder can be connected to the upper connecting plate 1 of the seismic isolation support 8 by high-strength bolts. When it is necessary to pre-deform the seismic isolation support 8, the hydraulic pump is started to inject hydraulic oil into the hydraulic cylinder, pushing the piston to extend, thereby driving the upper connecting plate 1 to move horizontally; when the predetermined pre-deformation amount is reached, the hydraulic pump is turned off, and the cylinder position is locked by the hydraulic valve.

[0053] In some possible embodiments, please refer to Figure 1 When it is only necessary to deform the seismic isolation bearing 8 towards either side wall of the lower support 7, the fixing component is installed on one side of the lower support 7, and only one pre-deformation component is required. The longitudinal projection of the driving component 5 in the pre-deformation component is perpendicular to the side wall of the lower support 7, and it pushes the upper part of the seismic isolation bearing 8 to move horizontally. In ultra-long seismic isolation buildings, the horizontal deformation direction caused by the solidification of concrete is mostly in the length direction of the building. Therefore, both the fixing component and the pre-deformation component are set at both ends of the length direction of the seismic isolation bearing 8.

[0054] Since the fixing components cannot affect the structural strength of the lower support 7, and considering that the fixing components can be detached, the fixing components are designed as a detachable frame structure.

[0055] Specifically, the fixing assembly may include two clamping members 2 and two sets of connecting members 3. The two clamping members 2 are symmetrically arranged on both sides of the lower support 7 in the length direction. The clamping members 2 are attached to the outer surface of the lower support 7. The support member 4 is vertically connected to the clamping members 2. The two sets of connecting rods are symmetrically arranged on both sides of the lower support 7 in the width direction. The connecting rods are used to connect the two clamping members 2.

[0056] The clamping component 2 can be made of square steel pipe, steel plate, angle steel, or other materials. Taking the clamping component 2 as an example, which is made of Q355-B grade square steel pipe, the dimensions of the square steel pipe can be selected as 160×80×6mm. During installation, a 5mm thick anti-slip rubber pad is attached to the inside of the clamping component 2, and a serrated pattern is set on the side of the anti-slip rubber pad facing the lower support 7.

[0057] The connector 3 can be made of screw, steel bar or other structure. Taking the screw of Q355-B grade steel as an example, the screw diameter can be selected as 30mm, the threads at both ends should be left, and the end is equipped with a nut.

[0058] Support component 4 can be made of H-beams, square steel tubes, or other structures. Taking support component 4 as an example, which is made of Q355-B grade square steel tube, the dimensions of the square steel tube can be selected as 160×80×6mm. Support component 4 is welded or bolted to clamping component 2.

[0059] The driving component 5 can be a screw with a diameter of 30mm. The screw is made of Q355-B grade steel. The driving component 5 passes through the support component 4 and is threadedly connected to the support component 4.

[0060] In this embodiment, two sets of connecting members 3 are located at both ends of the clamping member 2. The two sets of connecting members 3 and the two clamping members 2 are connected in sequence to form a frame-shaped fixing structure. The two clamping members 2 and the two sets of connecting members 3 are symmetrically arranged. The clamping member 2 is located in the direction of concrete deformation.

[0061] The support member 4 and the driving member 5 are set according to the deformation direction and the calculated deformation amount. The support member 4 is fixedly installed on the clamping member 2 in the deformation direction, and the driving member 5 is installed on the support member 4. The driving member 5 pushes the upper connecting plate 1 in the horizontal direction to move against the deformation direction until the amount of movement of the upper connecting plate 1 is consistent with the calculated deformation amount.

[0062] The calculation method for concrete deformation is existing technology and will not be elaborated here.

[0063] Optionally, two connectors 3 may be provided on either side at intervals along the longitudinal direction. Two connectors 3 on the same side may be provided at intervals along the longitudinal direction.

[0064] The clamping plate and connector 3 in the above embodiments are mostly designed for rectangular lower supports 7. For lower supports 7 with a circular cross-section, both the clamping plate 2 and connector 3 adopt an arc-shaped structure, such as the clamping plate 2 being an arc-shaped steel plate, the connector 3 being an arc-shaped steel rod, and the support 4 being fixed to the clamping plate 2 by a bracket.

[0065] In one embodiment, such as Figure 1 As shown, the fixing assembly also includes multiple locking members 10, which are detachably mounted on the connecting rod and are used to fix the connecting rod to the clamping member 2.

[0066] The locking element 10 can be a nut, which is installed on the connector 3 and abuts against the side of the clamping element 2 away from the lower support 7, so as to press the clamping element 2 against the outer surface of the lower support 7.

[0067] In some possible embodiments, please refer to Figure 3 The support member 4 has multiple members, and the multiple support members 4 are spaced apart on the clamping member 2.

[0068] Based on the above embodiment, multiple mounting positions are provided along the length of the clamping member 2 for mounting the support member 4. Bolt holes can be provided at the mounting positions. Multiple support members 4 are installed at equal intervals on the clamping member 2, which can ensure that the upper connecting plate 1 is subjected to uniform force along the length of the clamping member 2; in addition, when a single support member 4 fails, the remaining support members 4 can still bear a large design load, thus improving the stability of the support.

[0069] In another embodiment, when it is necessary to deform the seismic isolation bearing 8 toward either side wall inclined to the lower pier 7, since the pre-deformation component is provided on the fixed component and the fixed component is designed as a frame structure, two pre-deformation components can be selected to cooperate in adjusting the pre-deformation direction of the seismic isolation bearing 8.

[0070] There are two pre-deformation assemblies, which are respectively used to connect two adjacent sidewalls of the upper connecting plate 1.

[0071] Specifically, such as Figure 3 As shown, the fixing assembly includes four clamping members 2, which are connected in sequence and all fit against the outer surface of the lower support 7. Two support members 4 are located on two adjacent clamping members 2, and both support members 4 extend upward.

[0072] When adjustment is needed, the two drive components 5 are moved horizontally to adjust the horizontal inclination of the upper end of the seismic isolation bearing 8, allowing the upper end of the seismic isolation bearing 8 to tilt towards the corner of the lower pier 7. After fixing, the drive components 5 on both sides abut against the upper connecting plate 1 of the seismic isolation bearing 8 to keep the upper connecting plate 1 stable. After fixing, the upper layer of concrete is poured. During adjustment, the drive components 5 in both directions work together to precisely control the upper connecting plate 1 to move horizontally in the expected direction and degree, thereby achieving a more uniform and stable pre-deformation operation of the seismic isolation bearing 8.

[0073] All four clamping members 2 can be made of square steel, and adjacent clamping members 2 can be connected via adapter 12. Adapter 12 is a component used to connect two square steel tubes, and can be connected to the square steel tubes by welding, bolting, or other methods. Adapter 12 can have an L-shaped plate structure and is installed on the side away from the lower support 7. The clamping members 2 can also be made of angle steel. The angle steel is welded and fixed to the support member 4. Angle steels are connected to each other via adapter 12.

[0074] In some possible embodiments, please refer to Figure 3 The free end of the drive component 5 is equipped with a positioning component 11, which is attached to the upper connecting plate 1.

[0075] Based on the above embodiment, a positioning member 11 is added to the end of the driving member 5. The positioning member 11 has an L-shaped structure or a plate-like structure. The positioning member 11 is rotatably engaged with the driving member 5.

[0076] When the positioning element 11 is a plate-shaped structure, it is used to fit against the surface of the upper connecting plate 1, increasing the contact area between the driving element 5 and the upper connecting plate 1. When the upper connecting plate 1 is square, the positioning element 11 is a flat plate-shaped structure. When the upper connecting plate 1 is a circular flange, the positioning element 11 is an arc-shaped plate-shaped structure.

[0077] When the positioning element 11 has an L-shaped structure, it includes a vertical plate and a horizontal plate. The vertical plate is attached to the outer side wall of the upper connecting plate 1, and the horizontal plate is attached to the lower end face of the upper connecting plate 1. The L-shaped structure can apply horizontal and vertical constraints to the upper connecting plate 1, thereby improving positioning stability.

[0078] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Rubber seismic isolation bearing pre-deformation device, characterized by, include: A fixing component for installation on the lower support (7); The pre-deformation assembly includes a support member (4) and a drive member (5). The support member (4) is disposed on the fixed assembly, and the upper end of the support member (4) extends to one side of the upper connecting plate (1) of the seismic isolation bearing (8). The drive member (5) is detachably installed on the upper part of the support member (4). The drive member (5) has a degree of freedom in the horizontal direction. The free end of the drive member (5) is used to connect to the upper connecting plate (1) and drive the upper connecting plate (1) to move horizontally.

2. The rubber seismic isolation bearing pre-deformation device according to claim 1, wherein The driving member (5) passes through the support member (4), and the driving member (5) and the support member (4) are threaded together or snapped together.

3. The rubber seismic isolation bearing pre-deformation device according to claim 2, wherein The driving component (5) includes: A threaded rod, wherein a driving part is provided at the first end of the threaded rod; Correspondingly, the support member (4) has a through hole with an internal thread; the threaded rod passes through the through hole and abuts against the side wall of the upper connecting plate (1), and the driving part is located on the side of the support member (4) away from the upper connecting plate (1).

4. The rubber seismic isolation bearing pre-deformation device of claim 1, wherein The drive component (5) is horizontally fixedly installed on the support component (4), and the drive component (5) is telescopically oriented.

5. The rubber seismic isolation bearing pre-deformation device of claim 1, wherein The fixing component includes: Two clamping members (2) are symmetrically arranged on both sides of the lower support (7) along its length direction; The clamping member (2) is attached to the outer surface of the lower support (7); the support member (4) is vertically connected to the clamping member (2); Two sets of connecting rods are symmetrically arranged on both sides of the width direction of the lower support (7); the connecting rods are used to connect the two clamping members (2).

6. The rubber seismic isolation bearing pre-deformation device of claim 5, wherein The fixing component also includes: Multiple locking elements (10) are provided, the locking elements (10) are detachably disposed on the connecting rod, and the locking elements (10) are used to fix the connecting rod on the clamping member (2).

7. The rubber seismic isolation bearing pre-deformation device of claim 5, wherein The support member (4) has multiple members, and the multiple support members (4) are spaced apart on the clamping member (2).

8. The rubber seismic isolation bearing pre-deformation device of claim 1, wherein, The pre-deformation assembly has two components, which are respectively used to connect two adjacent sidewalls of the upper connecting plate (1).

9. The rubber seismic isolation bearing pre-deformation device of claim 1, wherein, A positioning element (11) is installed on the free end of the drive element (5), and the positioning element (11) is attached to the upper connecting plate (1).

10. The rubber seismic isolation bearing pre-deformation device of claim 9, wherein, The positioning element (11) has an L-shaped structure.

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