Simple and easy to correct construction isolation rubber bearing

Abstract

The utility model provides a simple and easy deviation rectification building shock insulation rubber support, is used for being installed between the upper support pier and lower support pier of building support pier, include: rubber main part department, by multilayer rubber and steel sheet interlaced superposition is high temperature vulcanization and is formed, lower flange connecting portion is used for being connected with lower support pier, including the upper side of lower support pier's lower connecting plate, the lower embedded plate of pouring in lower support pier inside and the lower connecting bolt of connecting lower connecting plate and lower support pier, upper flange connecting portion is used for being connected with upper support pier, including the lower side of upper support pier's upper connecting plate, the upper embedded plate of pouring in upper support pier inside and the upper connecting bolt of connecting upper connecting plate and upper support pier. The utility model keeps the traditional support anti-seismic performance and the basic structure unchanged, realizes the correction ability of construction error and long-term deformation, does not increase the subsidiary structure and does not change the structure of traditional building shock insulation support, can guarantee construction accuracy and deviation rectification effect, also does not increase cost expenditure.

Description

Technical Field

[0001] This utility model relates to the field of building seismic isolation technology, specifically to a simple, self-correcting building seismic isolation rubber bearing. Background Technology

[0002] Seismic isolation rubber bearings are the core component of building foundation seismic isolation systems. By setting a seismic isolation layer between the foundation and the superstructure, the natural vibration period of the structure is effectively extended, and the transmission of seismic energy to the upper structure is significantly reduced.

[0003] However, traditional seismic isolation rubber bearings face the problem of permanent displacement caused by construction deviations and concrete shrinkage and creep, resulting in the rubber layer being in a non-ideal stress state for a long time. To solve this technical problem, technicians in related fields have conducted a series of studies.

[0004] Chinese invention patent CN114775808A discloses a seismic isolation bearing with corrective properties and its usage method. The seismic isolation bearing with corrective properties is installed between a lower pier and an upper pier. The seismic isolation bearing with corrective properties includes: a base plate for fixing to the top of the lower pier; a base for fixing to the bottom of the upper pier and disposed opposite to the base plate; a top plate that is adjustablely installed on the base; an elastic member connecting the top plate and the base plate; and an adjusting member that is adjustablely installed on the base and located on the side of the top plate. By adjusting the position of the adjusting member, the adjusting member pushes against the top plate and moves along the base, so that the top plate and the base plate are opposite each other, thereby eliminating the deformation of the elastic member. By adjusting the position of the adjusting component, the adjusting component pushes against the top plate, thereby moving the top plate along the base to be opposite the bottom plate. This eliminates the deformation of the elastic component, thus restoring the deformation capacity of the seismic isolation bearing. This solves the problem that large and ultra-long concrete structures are greatly affected by excessive temperature changes on the seismic isolation bearing. When the seismic isolation bearing deforms, it can recover its deformation amount, improve the deformation capacity of the seismic isolation bearing, extend the service life of the seismic isolation bearing, and the structure is simple and easy to implement.

[0005] Chinese utility model patent CN217557879U discloses a seismic isolation bearing that can correct deviation, including a seismic isolation bearing body placed between an upper pier and a lower pier, an upper connecting plate and a lower connecting plate installed at the upper and lower ends of the seismic isolation bearing, characterized in that it also includes: a transition plate, which has a plate-like structure and is disposed between the upper pier and the upper connecting plate, and is installed on the upper pier by several upper connecting components, and is in close contact with the upper connecting plate; and a pressure plate, which is arranged and installed along the periphery of the upper connecting plate, and is installed on the transition plate by several pressure plate connecting components, and its inner edge surrounds the edge of the upper connecting plate to form a pressing and enclosing installation. The seismic isolation bearing body is directly installed on the lower pier via the lower connecting plate. However, the upper connecting plate is not directly connected to the upper pier. Instead, a transition plate is placed between the upper connecting plate and the upper pier surface. The transition plate is then directly installed on the upper pier. The outer periphery of the upper connecting plate is connected to the transition plate by a ring of pressure plates installed around its edge. When horizontal displacement occurs, the upper connecting plate and the transition plate together displace relative to the lower connecting plate. To correct the displacement, first loosen the pressure plate screws, remove the pressure plate and the pad, and use auxiliary jacking equipment to jack up the upper structure at the bearing. After jacking, release the pressure friction between the transition plate and the upper connecting plate, and the upper connecting plate will automatically reset. Once the bearing returns to a state without displacement, the jacking equipment can be unloaded. Then, the pressure plate is reinstalled on the transition plate via the pressure plate screws. The gap between the pressure plate and the upper connecting plate is filled with pads of corresponding thickness and geometric dimensions, thus quickly completing the correction and calibration work.

[0006] However, the above improvements still have the following drawbacks:

[0007] 1. All of them involve setting up complex correction transition plates on the upper connecting plate of the building's seismic isolation rubber bearing, and connecting the transition plates to the upper support piers of the building. The structure is relatively complex and the cost is high.

[0008] 2. Using a transition plate to connect with the building's upper supports increases the size of the transition plate, requiring a corresponding increase in the size of the building's supports, thus increasing construction costs and volume. This, to some extent, affects the use and design of the seismic isolation layer.

[0009] 3. The block-type correction method is prone to horizontal sliding of the bearings during earthquakes, affecting the isolation effect in minor earthquakes. Under major earthquakes, it is susceptible to pulse-like movements, leading to bearing failure. Utility Model Content

[0010] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a simple and correctable seismic isolation rubber bearing for buildings.

[0011] This utility model provides a simple, self-correcting seismic isolation rubber bearing for installation between the upper and lower supports of a building pier. It features: a lower flange connection for connecting to the lower support, including a lower connecting plate located above the lower support, a lower embedded plate cast inside the lower support, and a lower connecting bolt connecting the lower connecting plate to the lower support; an upper flange connection for connecting to the upper support, including an upper connecting plate located below the upper support, an upper embedded plate cast inside the upper support, and an upper connecting bolt connecting the upper connecting plate to the upper support; and a rubber body, formed by alternating layers of rubber and steel plates through high-temperature vulcanization, fixedly connected between the lower flange connection and the upper flange connection.

[0012] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following features: the lower flange connection part further includes a lower anchor sleeve pre-embedded inside the lower support pier, and the upper flange connection part further includes an upper anchor sleeve pre-embedded inside the upper support pier.

[0013] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following features: the lower embedded plate, the lower connecting plate, and the lower anchor sleeve are respectively provided with lower embedded plate connection holes, lower connecting plate connection holes, and lower anchor sleeve connection holes for passing through the lower connecting bolts, and the diameters of the lower embedded plate connection holes, lower connecting plate connection holes, and lower anchor sleeve connection holes are the same.

[0014] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following features: the upper embedded plate, the upper connecting plate, and the upper anchor sleeve are respectively provided with upper embedded plate connection holes, upper connecting plate connection holes, and upper anchor sleeve connection holes for passing through the upper connecting bolts, and the diameter of the upper connecting plate connection hole is 3 to 5 times the diameter of the upper embedded plate connection hole and the upper anchor sleeve connection hole.

[0015] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following feature: the position of the upper pre-embedded plate connection hole and the position of the upper anchor sleeve connection hole correspond to the geometric center position of the upper connecting plate connection hole.

[0016] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following feature: the position of the upper pre-embedded plate connection hole and the position of the upper anchor sleeve connection hole correspond to the geometric center position of the upper connecting plate connection hole.

[0017] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following features: the outer contour shape of the pressure plate is circular or rectangular, and the diameter of the pressure plate is not less than 8 times the diameter of the connecting hole of the upper connecting plate.

[0018] The simple, self-correcting building seismic isolation rubber bearing provided by this utility model may also have the following feature: the cross-sectional shape of the connecting hole of the upper connecting plate is rectangular, circular or elliptical.

[0019] Functions and effects of utility models

[0020] According to the simple and correctable seismic isolation rubber bearing of the present invention, since the main body of the rubber is formed by alternating layers of rubber and steel plates and high temperature vulcanization, the present invention has the characteristics of high vertical stiffness and horizontal flexibility, and can bear the weight of the building and provide sufficient horizontal deformation capacity.

[0021] This invention achieves the correction function without changing the structure of existing building seismic isolation bearings or adding too many additional correction mechanisms. It is relatively inexpensive and effective, and has high feasibility.

[0022] This invention can effectively solve the problem of large horizontal offset of some seismic isolation bearings in seismic isolation buildings in ultra-long, large-span, cold, and high-altitude areas. It can avoid the bearings being in an abnormal state of eccentric compression for a long time and has obvious advantages over conventional seismic isolation bearings in terms of extending the service life of seismic isolation bearings and improving the seismic safety of buildings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a simplified corrective building seismic isolation rubber bearing in an embodiment of this utility model.

[0024] Explanation of icon numbers

[0025] 100-Building seismic isolation rubber bearing, 101-Lower support, 102-Upper support, 10-Rubber main body, 20-Lower flange connection, 21-Lower connecting plate, 22-Lower embedded plate, 23-Lower connecting bolt, 24-Lower anchor sleeve, 30-Upper flange connection, 31-Upper connecting plate, 32-Upper embedded plate, 33-Upper connecting bolt, 34-Upper anchor sleeve, 35-Upper embedded plate connection hole, 36-Upper connecting plate connection hole, 37-Upper anchor sleeve connection hole, 38-Pressure plate. Detailed Implementation

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the simple and correctable seismic isolation rubber bearing of this utility model.

[0028] Figure 1 This is a schematic diagram of the structure of a simplified corrective building seismic isolation rubber bearing in an embodiment of this utility model.

[0029] like Figure 1 As shown, the simple correctable building seismic isolation rubber bearing 100 in this embodiment includes: a rubber body 10, a lower flange connection 20, and an upper flange connection 30.

[0030] The rubber body 10 is formed by alternating layers of rubber and steel plates through high-temperature vulcanization. It is located between the lower flange connection 20 and the upper flange connection 30 and is fixedly connected to the lower flange connection 20 and the upper flange connection 30 respectively by bolts.

[0031] The lower flange connection 20 is used to connect with the lower support 101, including a lower connecting plate 21 located above the lower support 101, a lower embedded plate 22 cast inside the lower support 101, a lower connecting bolt 23 connecting the lower connecting plate 21 to the lower support 101, and a lower anchor sleeve 24 embedded inside the lower support 101.

[0032] The lower embedded plate 22, the lower connecting plate 21, and the lower anchor sleeve 24 are respectively provided with lower embedded plate connection holes (not shown in the figure), lower connecting plate connection holes (not shown in the figure), and lower anchor sleeve connection holes (not shown in the figure) for passing through the lower connecting bolt 23. The lower embedded plate connection holes, lower connecting plate connection holes, and lower anchor sleeve connection holes have the same diameter and are in corresponding positions. The lower connecting bolt 23 passes through the lower connecting plate connection holes, lower embedded plate connection holes, and lower anchor sleeve connection holes in sequence, thereby connecting the lower embedded plate 22, lower connecting plate 21, and lower anchor sleeve 24 together.

[0033] The upper flange connection 30 is used to connect with the upper support 102, and includes an upper connecting plate 31 located below the upper support 102, an upper embedded plate 32 cast inside the upper support 102, an upper connecting bolt 33 connecting the upper connecting plate 31 to the upper support 102, and an upper anchor sleeve 34 embedded inside the upper support 102. A pressure plate 38 is also provided between the upper connecting bolt 33 and the upper connecting plate 31 for stress transition.

[0034] The outer contour of the pressure plate 38 is circular, and the diameter of the pressure plate 38 is not less than 8 times the diameter of the connecting hole 36 of the upper connecting plate.

[0035] The upper embedded plate 32, upper connecting plate 31, and upper anchor sleeve 34 are respectively provided with upper embedded plate connecting holes 35, upper connecting plate connecting holes 36, and upper anchor sleeve connecting holes 37 for the upper connecting bolts 33 to pass through. The diameter of the upper connecting plate connecting hole 36 is four times the diameter of the upper embedded plate connecting hole 35 and the upper anchor sleeve connecting hole 37. The positions of the upper embedded plate connecting hole 35 and the upper anchor sleeve connecting hole 37 correspond to the geometric center position of the upper connecting plate connecting hole 36. Furthermore, the cross-sectional shape of the upper connecting plate connecting hole 36 is rectangular.

[0036] The upper connecting bolt 33 passes through the pressure plate 38, the upper connecting plate connecting hole 36, the upper embedded plate connecting hole 35, and the upper anchor sleeve connecting hole 37 in sequence, thereby connecting the upper embedded plate 32, the upper connecting plate 31, and the upper anchor sleeve 34 together.

[0037] Usage process:

[0038] Following the conventional construction method for seismic isolation rubber bearings, the simplified and correctable seismic isolation rubber bearing 100 of this utility model is connected to the upper support 102 and the lower support 101 respectively. Specifically, the upper embedded plate 32 and the upper anchor sleeve 34 are first pre-cast into the upper support 102, and the upper connecting plate 31 is connected to the upper support 102 by the upper connecting bolt 33. Then, the lower embedded plate 22 and the lower anchor sleeve 24 are pre-cast into the lower support 101, and the lower connecting plate 21 is connected to the lower support 101 by the lower connecting bolt 23. Finally, the rubber body 10 is installed between the lower flange connection 20 and the upper flange connection 30 by hot vulcanization bonding or bolt connection. The positions of the upper embedded plate 32 and the upper anchor sleeve 34 must be ensured to be at the geometric center of each hole in the upper flange connection 30.

[0039] After construction is completed and the upper support 102 has shrunk and stabilized, check the condition of the simple self-correcting seismic isolation rubber bearing 100 to see if it is subjected to horizontal shear force and if there is any horizontal deformation. If so, gradually release the connection stress by tightening the upper connecting bolt 33. After a period of time, the simple self-correcting seismic isolation rubber bearing 100 will gradually recover through its own restoring force. After recovery, tighten the upper connecting bolt 33 to ensure its connection stability. If it cannot complete the correction through its own restoring force, external force can be used for assisted correction before tightening the upper connecting bolt 33 to ensure its connection stability.

[0040] The role and effect of the embodiments

[0041] According to the simple and correctable seismic isolation rubber bearing of the present invention, since the main body of the rubber is formed by alternating layers of rubber and steel plates and high temperature vulcanization, the present invention has the characteristics of high vertical stiffness and horizontal flexibility, and can bear the weight of the building and provide sufficient horizontal deformation capacity.

[0042] This invention achieves the correction function without altering the existing seismic isolation bearing structure or adding excessive additional correction mechanisms. It is relatively inexpensive and effective, demonstrating high feasibility.

[0043] This invention can effectively solve the problem of large horizontal offset of a small number of seismic isolation bearings in seismic isolation buildings in ultra-long, large-span, cold, and high-altitude areas. It can avoid the bearings being in an abnormal state of eccentric compression for a long time and has obvious advantages over conventional seismic isolation bearings in terms of extending the service life of seismic isolation bearings and improving the seismic safety of buildings.

[0044] This utility model sets the diameter of the connecting hole of the upper connecting plate to 3 to 5 times the diameter of the connecting hole of the upper embedded plate and the connecting hole of the upper anchor sleeve, so that the simple and correctable building seismic isolation rubber bearing has a certain degree of flexible adjustment capability.

[0045] This utility model uses a pressure plate to transfer force, ensuring the connection stability of the simple and correctable seismic isolation rubber bearing. At the same time, by setting the diameter of the pressure plate to be no less than 8 times the diameter of the connecting hole of the upper connecting plate, it has sufficient strength, which ensures sufficient connection stability on the one hand, and does not affect the shear movement of the seismic isolation bearing on the other hand.

[0046] This invention avoids the drawbacks of the block-type correction method, which has the disadvantage of horizontal sliding of the support during an earthquake, affecting the isolation effect in minor earthquakes, and being prone to pulse-like movement under major earthquakes, leading to support damage.

[0047] This utility model has a simple structure. Without affecting the performance and function of the seismic isolation bearing, it increases the size of the bolt connection holes and adds a bolt connection pressure plate. This allows the upper connecting plate to be released from its fixed installation on the building's upper support, enabling it to automatically reset. The connecting bolts are then retightened, thus achieving the field correction operation, greatly improving operational efficiency and saving manpower and time.

[0048] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple, self-correcting seismic isolation rubber bearing for installation between the upper and lower supports of a building, characterized in that, include: The lower flange connection part, used to connect with the lower support, includes a lower connecting plate located above the lower support, a lower embedded plate cast inside the lower support, and a lower connecting bolt connecting the lower connecting plate to the lower support. The upper flange connection part, used to connect with the upper support, includes an upper connecting plate located below the upper support, an upper embedded plate cast inside the upper support, and an upper connecting bolt that connects the upper connecting plate to the upper support. as well as The rubber body is formed by alternating layers of rubber and steel plates through high-temperature vulcanization and is fixedly connected between the lower flange connection and the upper flange connection.

2. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 1, characterized in that: in, The lower flange connection also includes a lower anchor bar sleeve pre-embedded inside the lower support, and the upper flange connection also includes an upper anchor bar sleeve pre-embedded inside the upper support.

3. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 2, characterized in that: in, The lower embedded plate, the lower connecting plate, and the lower anchor sleeve are respectively provided with lower embedded plate connection holes, lower connecting plate connection holes, and lower anchor sleeve connection holes for passing through the lower connecting bolts. The diameters of the lower embedded plate connection holes, lower connecting plate connection holes, and lower anchor sleeve connection holes are the same.

4. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 2, characterized in that: in, The upper embedded plate, the upper connecting plate, and the upper anchor sleeve are respectively provided with upper embedded plate connection holes, upper connecting plate connection holes, and upper anchor sleeve connection holes for passing through the upper connecting bolts. The diameter of the upper connecting plate connection hole is 3 to 5 times the diameter of the upper embedded plate connection hole and the upper anchor sleeve connection hole.

5. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 4, characterized in that: in, The positions of the upper embedded plate connection holes and the upper anchor sleeve connection holes correspond to the geometric center position of the upper connecting plate connection holes.

6. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 4, characterized in that: in, A pressure plate is also provided between the upper connecting bolt and the upper connecting plate to facilitate stress transfer.

7. The simplified, self-correcting seismic isolation rubber bearing for buildings according to claim 6, characterized in that: in, The outer contour of the pressure plate is circular or rectangular, and the diameter of the pressure plate is not less than 8 times the diameter of the connecting hole of the upper connecting plate.

8. The simple, self-correcting seismic isolation rubber bearing for buildings according to claim 4, characterized in that: in, The cross-sectional shape of the connecting hole in the upper connecting plate is rectangular, circular, or elliptical.

Images