High-rise building isolation support and installation method

Abstract

The application discloses a high-rise building shock insulation support and a mounting method, and particularly relates to the technical field of shock insulation supports, which comprises a fixed pier, a lower connecting steel plate arranged at the top of the fixed pier, an upper connecting steel plate arranged at the top of the lower connecting steel plate, a lower sealing plate arranged at the top of the lower connecting steel plate, an upper sealing plate arranged at the bottom of the upper connecting steel plate, a lead core fixed between the middle portions of the lower sealing plate and the upper sealing plate, a plurality of internal steel plates and internal rubbers sleeved at the outer ends of the lead core, and a protective rubber layer integrally connected with a connecting rubber layer at the outer end of the protective rubber layer. The protective rubber layer and the connecting rubber layer are arranged at the outer ends of the plurality of internal steel plates and the internal rubbers, a plurality of first shock insulation springs are arranged in mounting grooves in the connecting rubber layer, the shock insulation effect of the shock insulation support is good, the shock insulation support can provide protection in the transverse direction, and the damage of the connection between the internal steel plates and the internal rubbers caused by the shearing force is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of isolation bearings, in particular to a high-rise building isolation bearing and a mounting method. BACKGROUND

[0002] An isolation bearing refers to a supporting device arranged for the purpose of isolation, and is a device for achieving the purpose of isolation by arranging an isolation layer between an upper structure and a foundation and installing a rubber isolation bearing to achieve soft connection with the ground. Through such a technology, about 80% of the energy of an earthquake can be offset. For example, a laminated rubber bearing (or a rubber isolation bearing or a laminated rubber pad). It is a structural component with small horizontal stiffness and large vertical stiffness, which can withstand large horizontal deformation and can be used as part of a load-bearing system.

[0003] At present, in actual use, the isolation bearing of a high-rise building is only isolated by a friction pendulum or a laminated rubber isolation bearing, and the transverse shear force can damage the laminated structure. If the isolation bearing is subjected to small earthquakes and small wind loads for a long time, the bearing is prone to fatigue, and the isolation capacity is reduced. When subjected to a large earthquake or wind load, the bearing cannot exert the original isolation capacity due to fatigue damage or tension. SUMMARY

[0004] The purpose of the application is to provide a high-rise building isolation bearing and a mounting method to solve the above problems in the art.

[0005] In order to achieve the above purpose, the application provides the following technical scheme: a high-rise building isolation bearing and a mounting method, comprising:

[0006] A fixed pier is provided with a lower connecting steel plate at the top end, an upper connecting steel plate is arranged at the top of the lower connecting steel plate, a lower sealing plate is arranged at the top end of the lower connecting steel plate, an upper sealing plate is arranged at the bottom end of the upper connecting steel plate, a lead core is fixedly arranged between the middle portions of the lower sealing plate and the upper sealing plate, a plurality of internal steel plates and internal rubbers are sleeved on the outer end of the lead core, the plurality of internal steel plates and internal rubbers are fixedly arranged between the lower sealing plate and the upper sealing plate, and the plurality of internal steel plates and internal rubbers are distributed at intervals.

[0007] A protective rubber layer is arranged at the outer end of the plurality of internal steel plates and internal rubbers, a connecting rubber layer is integrally connected to the outer end of the protective rubber layer, an installation groove is arranged in the connecting rubber layer, two annular movable plates are arranged in the installation groove in an up-down distribution, and a plurality of first isolation springs are fixedly arranged between the two annular movable plates.

[0008] Preferably, the top end of one of the annular movable plates and the bottom end of the other annular movable plate are rotatably connected with a plurality of rotating rods, the upper and lower rotating rods are respectively provided with a lower connecting nut and an upper connecting nut at one end, which are fixedly connected with the lower connecting steel plate and the upper connecting steel plate.

[0009] Preferably, the fixed pier is provided with a lower embedded screw rod at the top end, the top end of the lower embedded screw rod extends into the lower connecting nut and is threadedly connected with the lower connecting nut, so as to fix the lower connecting steel plate and the lower sealing plate at the top end of the fixed pier.

[0010] Preferably, the top end of the upper connecting steel plate is provided with a plurality of upper embedded screw rods, the bottom end of the upper embedded screw rod extends into the upper connecting nut and is threadedly connected with the upper connecting nut, so as to fix the upper embedded screw rod and the top end of the upper connecting steel plate together.

[0011] Preferably, the top end of the lower connecting steel plate is provided with a lower recess, the bottom end of the lower sealing plate extends into the lower recess, the inner wall of the lower recess is provided with a lower movable groove, the bottom end of the lower sealing plate is integrally connected with a lower extension plate, the lower extension plate is arranged in the lower movable groove, and a lower shock absorption pad is arranged between the inner bottom end of the lower recess and the bottom end of the lower sealing plate, and the outer end of the lower shock absorption pad extends into the lower movable groove.

[0012] Preferably, the bottom end of the upper connecting steel plate is provided with an upper recess, the top end of the upper sealing plate extends into the upper recess, the inner wall of the upper recess is provided with an upper movable groove, the top end of the upper sealing plate is integrally connected with an upper extension plate, the upper extension plate is arranged in the upper movable groove, and an upper shock absorption pad is arranged between the inner top end of the upper recess and the top end of the upper sealing plate, and the outer end of the upper shock absorption pad extends into the upper movable groove.

[0013] Preferably, a plurality of spring grooves are arranged on the lower shock absorption pad and the upper shock absorption pad, and a second shock absorption spring is fixedly installed in each spring groove, so as to increase the shock absorption effect of the shock absorption support.

[0014] Preferably, a plurality of first communication holes are arranged on the lower connecting steel plate and the upper connecting steel plate, a plurality of second communication holes are arranged on the lower shock absorption pad and the upper shock absorption pad, and a plurality of third communication holes are arranged on the lower sealing plate and the upper sealing plate, the center lines of the first communication holes, the second communication holes and the third communication holes coincide, the top end of the lower embedded screw rod extends through the first communication hole, the second communication hole and the third communication hole at the bottom in sequence and extends to the top of the lower sealing plate, and the bottom end of the upper embedded screw rod extends through the first communication hole, the second communication hole and the third communication hole at the top in sequence and extends to the bottom of the upper sealing plate, so as to facilitate the passing of the lower embedded screw rod and the upper embedded screw rod.

[0015] Also include the installation method of the high-rise building isolation bearing:

[0016] S1: first use concrete to pour the fixed pier, embed multiple lower embedded screw rods in the fixed pier, and polish the top end of the fixed pier;

[0017] S2: place the lower connecting steel plate, the upper connecting steel plate and the structure therebetween on the top end of the fixed pier, so that the top end of the lower embedded screw rod passes through the first communication port, the second communication port and the third communication port in the lower connecting steel plate, the lower isolation pad and the lower sealing plate, and use an external wrench to rotate the multiple lower connecting nuts, which drive the rotating rods to rotate. When the lower connecting nut is rotated to the top end of the lower embedded screw rod and enters its interior, the lower connecting steel plate can be fixed on the top end of the fixed pier;

[0018] S3: pass the bottom end of the upper embedded screw rod through the first communication port, the second communication port and the third communication port in the upper connecting steel plate, the upper isolation pad and the upper sealing plate, and use an external wrench to fix the upper connecting nut, rotate the upper embedded screw rod downward so that the bottom end of the upper embedded screw rod enters the interior of the upper connecting nut, so that the multiple upper embedded screw rods can be fixed on the top end of the upper connecting steel plate;

[0019] S4: install the formwork and steel reinforcement frame on the top end of the upper connecting steel plate, and then pour concrete on the top end of the upper connecting steel plate, so that the top end of the upper embedded screw rod is fixed in the poured concrete, so that the lower connecting steel plate and the upper connecting steel plate and the isolation structure therebetween can be fixed between the fixed pier and the upper poured building support column.

[0020] In the above technical solution, the technical effects and advantages provided by the present application are:

[0021] By providing a protective rubber layer and a connecting rubber layer on the outer end of the multiple inner steel plates and the inner rubber, and installing multiple first isolation springs in the installation groove in the connecting rubber layer, the isolation effect of the isolation bearing is better, and protection is provided in the transverse direction, avoiding damage to the connection between the inner steel plate and the inner rubber caused by shear force, and the overall use effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments or prior art of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0023] Figure 1 The overall structure of the present application is shown in the figure;

[0024] Figure 2This is a three-dimensional structural diagram of the fixed pier and the pre-embedded screw of the present invention;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of the main component of the seismic isolation bearing of the present invention;

[0026] Figure 4 This is a three-dimensional cross-sectional view of the internal steel plate, internal rubber, protective rubber layer, and connecting rubber layer of the present invention.

[0027] Figure 5 This is a three-dimensional cross-sectional view of the protective rubber layer and the connecting rubber layer of the present invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the annular movable plate, rotating rod, and upper connecting nut of the present invention;

[0029] Figure 7 This is an exploded structural diagram of the lower connecting steel plate, lower vibration isolation pad, and lower sealing plate of the present invention;

[0030] Figure 8 This is an exploded structural diagram of the upper connecting steel plate, upper vibration isolation pad, and upper sealing plate of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Fixed pier; 2. Lower connecting steel plate; 3. Upper connecting steel plate; 4. Lower sealing plate; 5. Upper sealing plate; 6. Lead core; 7. Internal steel plate; 8. Internal rubber; 9. Protective rubber layer; 10. Connecting rubber layer; 11. Mounting groove; 12. Annular movable plate; 13. Rotating rod; 14. Lower connecting nut; 15. Upper connecting nut; 16. Lower embedded screw; 17. Upper embedded screw; 18. First vibration isolation spring; 19. Lower groove; 20. Lower movable groove; 21. Lower extension plate; 22. Lower vibration isolation pad; 23. Upper groove; 24. Upper movable groove; 25. Upper extension plate; 26. Upper vibration isolation pad; 27. Spring groove; 28. Second vibration isolation spring; 29. ​​First connecting port; 30. Second connecting port; 31. Third connecting port. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] This invention provides, for example Figures 1 to 8 The diagram illustrates a seismic isolation bearing for high-rise buildings and its installation method, comprising:

[0035] A fixed pier 1 is provided with a lower connecting steel plate 2 at the top of the fixed pier 1, an upper connecting steel plate 3 at the top of the lower connecting steel plate 2, a lower sealing plate 4 at the top of the lower connecting steel plate 2, an upper sealing plate 5 at the bottom of the upper connecting steel plate 3, a lead core 6 is fixed between the lower sealing plate 4 and the upper sealing plate 5, and multiple internal steel plates 7 and internal rubber 8 are sleeved on the outer end of the lead core 6. The multiple internal steel plates 7 and internal rubber 8 are fixed between the lower sealing plate 4 and the upper sealing plate 5, and the multiple internal steel plates 7 and internal rubber 8 are distributed at intervals.

[0036] A protective rubber layer 9 is provided at the outer end of multiple internal steel plates 7 and internal rubber 8. The outer end of the protective rubber layer 9 is integrally connected to a connecting rubber layer 10. An installation groove 11 is provided inside the connecting rubber layer 10. Two vertically distributed annular movable plates 12 are provided inside the installation groove 11. Multiple first vibration isolation springs 18 are fixed between the two annular movable plates 12.

[0037] Multiple rotating rods 13 are rotatably connected to the top of one annular movable plate 12 and the bottom of the other annular movable plate 12. One end of the multiple rotating rods 13 distributed vertically passes through the top and bottom of the connecting rubber layer 10, respectively. One end of the multiple rotating rods 13 at the bottom is fixed with a lower connecting nut 14, and one end of the multiple rotating rods 13 at the top is fixed with an upper connecting nut 15. A lower pre-embedded screw 16 is fixed on the fixed block 1. The top end of the lower pre-embedded screw 16 extends into the interior of the lower connecting nut 14 and is threadedly connected to the lower connecting nut 14. Multiple upper pre-embedded screws 17 are provided at the top of the upper connecting steel plate 3. The bottom end of the upper pre-embedded screw 17 extends into the interior of the upper connecting nut 15 and is threadedly connected to the upper connecting nut 15.

[0038] The lower connecting steel plate 2 has a lower groove 19 at its top, and the bottom end of the lower sealing plate 4 extends into the lower groove 19. A lower movable groove 20 is formed on the inner wall of the lower groove 19. A lower extension plate 21 is integrally connected to the outer side of the bottom end of the lower sealing plate 4. The lower extension plate 21 is located inside the lower movable groove 20. A lower vibration isolation pad 22 is provided between the bottom end of the lower groove 19 and the bottom end of the lower sealing plate 4. The outer end of the lower vibration isolation pad 22 extends into the lower movable groove 20. The upper connecting steel plate 3 has an upper groove 23 at its bottom end, and the upper sealing plate 5 has a lower groove 23 at its top end. Extending into the interior of the upper groove 23, an upper movable groove 24 is provided on the inner wall of the upper groove 23. An upper extension plate 25 is integrally connected to the outer side of the top of the upper sealing plate 5. The upper extension plate 25 is located inside the upper movable groove 24. An upper vibration isolation pad 26 is provided between the top of the interior of the upper groove 23 and the top of the upper sealing plate 5. The outer end of the upper vibration isolation pad 26 extends into the interior of the upper movable groove 24. Multiple spring grooves 27 are provided on both the lower vibration isolation pad 22 and the upper vibration isolation pad 26. A second vibration isolation spring 28 is fixedly installed inside the spring groove 27.

[0039] Multiple first connecting ports 29 are provided on both the lower connecting steel plate 2 and the upper connecting steel plate 3. Multiple second connecting ports 30 are provided on both the lower vibration isolation pad 22 and the upper vibration isolation pad 26. Multiple third connecting ports 31 are provided on both the lower sealing plate 4 and the upper sealing plate 5. The center lines of the first connecting ports 29, the second connecting ports 30 and the third connecting ports 31 coincide. The top end of the lower pre-embedded screw 16 passes through the bottom first connecting port 29, the second connecting port 30 and the third connecting port 31 in sequence and extends to the top of the lower sealing plate 4. The bottom end of the upper pre-embedded screw 17 passes through the top first connecting port 29, the second connecting port 30 and the third connecting port 31 in sequence and extends to the bottom of the upper sealing plate 5.

[0040] First, concrete is poured to fill the fixed pier 1. Multiple lower embedded screws 16 are then embedded inside the fixed pier 1. The top of the fixed pier 1 is ground smooth. The lower connecting steel plate 2, the upper connecting steel plate 3, and the structure in between are placed on the top of the fixed pier 1, so that the top of the lower embedded screw 16 passes through the first connecting port 29, the second connecting port 30, and the third connecting port 31 on the lower connecting steel plate 2, the lower vibration isolation pad 22, and the lower sealing plate 4. Multiple lower connecting nuts 14 are turned using an external wrench. The lower connecting nuts 14 drive the rotating rod 13 to rotate. After the lower connecting nuts 14 rotate until the top of the lower embedded screw 16 enters its interior, the lower connecting steel plate 2 can be fixed to the top of the fixed pier 1. The bottom end of the upper embedded screw 17 passes through... Inside the first connecting port 29, second connecting port 30, and third connecting port 31 on the upper connecting steel plate 3, upper vibration isolation pad 26, and upper sealing plate 5, use an external wrench to fix the upper connecting nut 15, and rotate the upper embedded screw 17 downward so that the bottom end of the upper embedded screw 17 enters the upper connecting nut 15. In this way, multiple upper embedded screws 17 can be fixed to the top of the upper connecting steel plate 3. Install the template and steel reinforcement frame on the top of the upper connecting steel plate 3, and then pour concrete on the top of the upper connecting steel plate 3 so that the top of the upper embedded screw 17 is fixed inside the poured concrete. In this way, the lower connecting steel plate 2 and the upper connecting steel plate 3 and the vibration isolation structure between them can be fixed between the fixed pier 1 and the upper poured building support column.

[0041] When a building encounters vibration or strong winds, it will experience vertical vibration and lateral swaying. At this time, multiple internal rubber layers 8, protective rubber layers 9, connecting rubber layers 10, multiple first vibration isolation springs 18, lower vibration isolation pads 22, upper vibration isolation pads 26, and multiple second vibration isolation springs 28 will buffer the vertical vibration, which can offset most of the vibration force. The protective rubber layer 9, connecting rubber layers 10, and the multiple first vibration isolation springs 18 inside them will provide lateral protection to the multiple internal steel plates 7 and internal rubber layers 8 inside them, which can prevent shear forces from damaging the internal steel plates 7 and internal rubber layers 8, so that they can have better recovery force when subjected to shaking.

[0042] This invention provides a protective rubber layer 9 and a connecting rubber layer 10 at the outer ends of multiple internal steel plates 7 and internal rubber 8, and installs multiple first isolation springs 18 in the mounting groove 11 inside the connecting rubber layer 10. This results in a better seismic isolation effect of the seismic isolation bearing and provides protection in the lateral direction, preventing damage to the connection between the internal steel plates 7 and internal rubber 8 caused by shear forces. The overall performance is better. This embodiment specifically solves the problem that in the prior art, seismic isolation bearings for high-rise buildings rely solely on friction pendulums or laminated rubber for seismic isolation in actual use, while lateral shear forces can damage the laminated structure. If the seismic isolation bearing is subjected to small earthquakes and small wind loads for a long time, the bearing is prone to fatigue, resulting in a reduction in seismic isolation capacity. When encountering large earthquakes or wind loads, the bearing is unable to perform its original seismic isolation capacity due to fatigue damage or tension.

[0043] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A seismic isolation bearing for high-rise buildings, characterized in that, include: A fixed pier (1) is provided with a lower connecting steel plate (2) at the top of the fixed pier (1), an upper connecting steel plate (3) at the top of the lower connecting steel plate (2), a lower sealing plate (4) at the top of the lower connecting steel plate (2), an upper sealing plate (5) at the bottom of the upper connecting steel plate (3), a lead core (6) is fixed between the middle of the lower sealing plate (4) and the upper sealing plate (5), and multiple internal steel plates (7) and internal rubber (8) are sleeved on the outer end of the lead core (6). The multiple internal steel plates (7) and internal rubber (8) are fixed between the lower sealing plate (4) and the upper sealing plate (5), and the multiple internal steel plates (7) and internal rubber (8) are distributed at intervals. A protective rubber layer (9) is provided at the outer ends of multiple inner steel plates (7) and inner rubber (8). The outer ends of the protective rubber layer (9) are integrally connected to a connecting rubber layer (10). An installation groove (11) is provided inside the connecting rubber layer (10). Two vertically distributed annular movable plates (12) are provided inside the installation groove (11). Multiple first vibration isolation springs (18) are fixed between the two annular movable plates (12). One of the annular movable plates (12) has multiple rotating rods (13) rotatably connected to its top and bottom. One end of each of the multiple rotating rods (13) distributed vertically passes through the top and bottom of the connecting rubber layer (10). One end of each of the multiple rotating rods (13) at the bottom is fixed with a lower connecting nut (14), and one end of each of the multiple rotating rods (13) at the top is fixed with an upper connecting nut (15).

2. The seismic isolation bearing for high-rise buildings according to claim 1, characterized in that: The fixed pier (1) is fixedly provided with a lower pre-embedded screw (16), the top end of the lower pre-embedded screw (16) extends into the interior of the lower connecting nut (14) and is threadedly connected to the lower connecting nut (14).

3. A seismic isolation bearing for high-rise buildings according to claim 2, characterized in that: The top of the upper connecting steel plate (3) is provided with a plurality of upper pre-embedded screws (17), the bottom end of the upper pre-embedded screws (17) extends into the interior of the upper connecting nut (15) and is threadedly connected to the upper connecting nut (15).

4. A seismic isolation bearing for high-rise buildings according to claim 3, characterized in that: The lower connecting steel plate (2) has a lower groove (19) at its top end. The bottom end of the lower sealing plate (4) extends into the lower groove (19). The inner wall of the lower groove (19) has a lower movable groove (20). The lower sealing plate (4) has a lower extension plate (21) integrally connected to the outer side of its bottom end. The lower extension plate (21) is located inside the lower movable groove (20). A lower vibration isolation pad (22) is provided between the bottom end of the lower groove (19) and the bottom end of the lower sealing plate (4). The outer end of the lower vibration isolation pad (22) extends into the lower movable groove (20).

5. A seismic isolation bearing for high-rise buildings according to claim 4, characterized in that: The upper connecting steel plate (3) has an upper groove (23) at its bottom end. The top end of the upper sealing plate (5) extends into the upper groove (23). An upper movable groove (24) is provided on the inner wall of the upper groove (23). An upper extension plate (25) is integrally connected to the outer side of the top end of the upper sealing plate (5). The upper extension plate (25) is located inside the upper movable groove (24). An upper vibration isolation pad (26) is provided between the top end of the upper groove (23) and the top end of the upper sealing plate (5). The outer end of the upper vibration isolation pad (26) extends into the upper movable groove (24).

6. A seismic isolation bearing for high-rise buildings according to claim 5, characterized in that: Multiple spring grooves (27) are provided on both the lower vibration isolation pad (22) and the upper vibration isolation pad (26), and a second vibration isolation spring (28) is fixedly installed inside the spring groove (27).

7. A seismic isolation bearing for high-rise buildings according to claim 6, characterized in that: Multiple first connecting ports (29) are provided on both the lower connecting steel plate (2) and the upper connecting steel plate (3). Multiple second connecting ports (30) are provided on both the lower vibration isolation pad (22) and the upper vibration isolation pad (26). Multiple third connecting ports (31) are provided on both the lower sealing plate (4) and the upper sealing plate (5). The center lines of the first connecting ports (29), the second connecting ports (30) and the third connecting ports (31) coincide. The top end of the lower pre-embedded screw (16) passes through the bottom first connecting port (29), the second connecting port (30) and the third connecting port (31) in sequence and extends to the top of the lower sealing plate (4). The bottom end of the upper pre-embedded screw (17) passes through the top first connecting port (29), the second connecting port (30) and the third connecting port (31) in sequence and extends to the bottom of the upper sealing plate (5).

8. A seismic isolation bearing for high-rise buildings according to claim 7, characterized in that: It also includes the installation method of the seismic isolation bearings for this high-rise building: S1: First, use concrete to pour the fixed pier (1), then embed multiple pre-embedded screws (16) inside the fixed pier (1), and grind the top of the fixed pier (1) flat. S2: Place the lower connecting steel plate (2) and the upper connecting steel plate (3) and the structure in between on the top of the fixed pier (1), so that the top of the lower pre-embedded screw (16) passes through the first connecting port (29), the second connecting port (30) and the third connecting port (31) on the lower connecting steel plate (2), the lower vibration isolation pad (22) and the lower sealing plate (4). Use an external wrench to rotate multiple lower connecting nuts (14). The lower connecting nuts (14) drive the rotating rod (13) to rotate. After the lower connecting nuts (14) rotate to the top of the lower pre-embedded screw (16) and enter its interior, fix the lower connecting steel plate (2) on the top of the fixed pier (1). S3: Pass the bottom end of the upper pre-embedded screw (17) through the first connecting port (29), the second connecting port (30) and the third connecting port (31) on the upper connecting steel plate (3), the upper vibration isolation pad (26) and the upper sealing plate (5), use an external wrench to fix the upper connecting nut (15), rotate the upper pre-embedded screw (17) downward so that the bottom end of the upper pre-embedded screw (17) enters the upper connecting nut (15), and fix multiple upper pre-embedded screws (17) on the top of the upper connecting steel plate (3); S4: Install templates and steel reinforcement frames at the top of the upper connecting steel plate (3), and then pour concrete at the top of the upper connecting steel plate (3) so that the top of the upper pre-embedded screw (17) is fixed inside the poured concrete, and fix the lower connecting steel plate (2) and the upper connecting steel plate (3) and the isolation structure between them between the fixed pier (1) and the upper poured building support column.

Images