Height-adjustable isolation bearing in isolation layer and installation method

Abstract

The application relates to an adjustable-height isolation support in an isolation layer and a mounting method, which comprises an isolation support body, the isolation support body comprises horizontally arranged upper and lower connecting plates, a protection rubber layer is arranged between the upper and lower connecting plates, the upper and lower connecting plates are fixedly connected with one end of the protection rubber layer, the lower connecting plate is mounted on a lower supporting pier, a groove is arranged on the upper surface of the lower supporting pier, a connecting groove is inserted into the groove, a plurality of embedded sleeves are embedded in the lower supporting pier, bolts corresponding to the embedded sleeves are inserted into the bottom wall of the connecting groove, the bolts are threadedly connected in the corresponding embedded sleeves, and the lower connecting plate is slidingly inserted into the connecting groove; a supporting piece for supporting the lower connecting plate is arranged on the bottom wall of the connecting groove; an adjusting assembly for adjusting the height position of the lower connecting plate is further arranged at the position below the lower connecting plate in the connecting groove. The application has the effect of reducing the construction cost of the isolation layer.

Description

Technical Field

[0001] This application relates to the field of seismic isolation devices for buildings, and in particular to a height-adjustable seismic isolation bearing in a seismic isolation layer and its installation method. Background Technology

[0002] A typical seismic isolation layer includes a horizontal upper connecting plate and a lower connecting plate. Multiple metal plates and rubber plates are arranged at intervals between the upper and lower connecting plates. Through vulcanization, adjacent metal plates and rubber plates are fixedly bonded. The upper and lower connecting plates are also fixedly bonded to their corresponding rubber plates. All metal plates and rubber plates are surrounded by a protective rubber layer, which is fixedly bonded to the metal plates, rubber plates, upper connecting plates, and lower connecting plates. The seismic isolation bearing is installed between the upper and lower supports. The upper connecting plate is fixed to the upper support with bolts, and the lower connecting plate is fixed to the lower support with bolts.

[0003] However, due to ground subsidence, the lower support pier sinks with the ground, which increases the distance between the upper and lower support piers. Since the height of the seismic isolation bearing is fixed, the old seismic isolation bearing is not compatible with the distance between the upper and lower support piers. At this time, it is necessary to replace the seismic isolation bearing with one of suitable height, which leads to high construction costs for the seismic isolation layer. Summary of the Invention

[0004] To reduce the construction cost of seismic isolation layers, this application provides an adjustable-height seismic isolation bearing and its installation method in seismic isolation layers.

[0005] This application provides an adjustable-height seismic isolation bearing in a seismic isolation layer, employing the following technical solution: An adjustable-height seismic isolation bearing in a seismic isolation layer includes a seismic isolation bearing body. The seismic isolation bearing body includes a horizontally arranged upper connecting plate and a lower connecting plate. A protective rubber layer with a circular cross-section is provided between the upper connecting plate and the lower connecting plate. The upper connecting plate and the lower connecting plate are fixedly connected to one end of the protective rubber layer. The lower connecting plate is installed on a lower support. A groove is formed on the upper surface of the lower support. A connecting groove adapted to the lower connecting plate is inserted into the groove. A plurality of pre-embedded sleeves for fixing to the connecting groove are pre-embedded in the lower support. Bolts corresponding to the pre-embedded sleeves are inserted into the bottom wall of the connecting groove. The bolts are threaded into the corresponding pre-embedded sleeves. The lower connecting plate is slidably inserted into the connecting groove. The sliding direction of the lower connecting plate is set along the depth direction of the connecting groove. The bottom wall of the connecting groove is provided with a support member to support the lower connecting plate; The connecting groove is also equipped with an adjustment component located below the lower connecting plate to adjust the height of the lower connecting plate.

[0006] Optionally, two sliders are fixedly connected to each of the two opposite sidewalls of the lower connecting plate. The two sliders on the same side are arranged along the length direction of the corresponding sidewall of the lower connecting plate. A sliding groove body corresponding to each slider is fixedly connected to the sidewall of the connecting groove. The length direction of the sliding groove body is set along the depth direction of the connecting groove. Each slider is slidably inserted into the corresponding sliding groove body.

[0007] Optionally, the support includes guide cylinders fixedly connected to the four corners of the lower surface of the lower connecting plate, with the openings of the guide cylinders facing downwards. A support column is slidably inserted into the guide cylinder, with the lower end of the support column fixed to the inner bottom wall of the connecting groove. A spring is fixedly connected to the upper end face of the support column, with the upper end of the spring fixedly connected to the inner top surface of the guide cylinder. The support column, guide cylinder, and spring cooperate to position the lower connecting plate in the middle of the connecting groove.

[0008] Optionally, the adjustment assembly includes a support plate disposed below the lower connecting plate, wherein the upper surface of the support plate is fixedly connected to multiple support columns, and the upper ends of the support columns are fixedly connected to the lower surface of the lower connecting plate. Support rods are hinged to the lower surface of the tray and the inner bottom wall of the connecting groove. The hinge points of the tray, the connecting groove and the support rods are all located at the same side edge inside the connecting groove. The end of the support rod away from the tray is hinged to the mounting block, and the end of the other support rod away from the connecting groove is also hinged to the mounting block. The ends of the two support rods near the mounting block are inclined in the direction of mutual approach, and the ends of the two support rods away from the mounting block are inclined in the direction of mutual distance. A vertically arranged adjusting plate is slidably connected to the inner bottom wall of the connecting groove. The length direction of the adjusting plate is set along the depth direction of the connecting groove. The adjusting plate is located below the lower connecting plate and passes through the support plate and is slidably inserted into the support plate. The sliding direction of the adjusting plate is set along the length direction of the support rod. The mounting block is slidably connected to the corresponding side wall of the adjusting plate, and the mounting block slides on the adjusting plate along the length direction of the adjusting plate; The lower support and the connecting groove are both equipped with a driving component for moving the adjusting plate. The driving component is located on the side of the adjusting plate away from the mounting block.

[0009] Optionally, the driving component includes a driving pipe that is fixedly connected to the connecting groove. The driving pipe is horizontally arranged and pre-embedded in the lower support. The end of the driving pipe away from the connecting groove is located outside the lower support. A driving rod is threadedly connected to the driving pipe. One end of the driving rod is located outside the lower support, and the other end of the driving rod extends into the connecting groove. The end of the driving rod located in the connecting groove contacts the side wall of the adjusting plate away from the mounting block.

[0010] Optionally, a T-shaped connecting block is fixedly connected to the lower surface of the adjusting plate, and a mating groove adapted to the connecting block is provided on the inner bottom wall of the connecting groove. The length direction of the mating groove is set along the sliding direction of the adjusting plate, and the connecting block is slidably inserted into the mating groove.

[0011] Optionally, the mounting block is a T-shaped block, and the adjusting plate has a sliding groove adapted to the mounting block on its side wall near the mounting block. The length direction of the sliding groove is set along the length direction of the adjusting plate, and the mounting block is slidably inserted into the sliding groove.

[0012] Optionally, a top plate is fixedly connected to the top of the connecting groove, and the protective rubber layer is in contact with the inner side wall of the top plate. The top plate is provided with a limiting member to support the upper connecting plate.

[0013] Optionally, the limiting component includes multiple threaded cylinders fixedly connected to the lower surface of the upper connecting plate. The multiple threaded cylinders are evenly distributed on the upper connecting plate. The length direction of the threaded cylinders is set along the height direction of the main body of the seismic isolation support. A screw is threadedly connected to the threaded cylinder. A horizontal mating plate is fixedly connected to the lower end of the screw. The lower surface of the mating plate is in contact with the upper surface of the top plate.

[0014] This application also provides a method for installing an adjustable-height seismic isolation bearing in a seismic isolation layer, for use with the aforementioned seismic isolation bearing, comprising the following steps: S1. Check the connection groove and the main body of the vibration isolation bearing, and rotate the drive rod to disengage the drive rod from the drive tube. S2. Determine the position of the connecting groove, fix the embedded sleeve, and fix the connecting groove and the embedded sleeve with bolts to complete the support and positioning of the connecting groove. Tie the lower support reinforcement, fix the embedded sleeve to the lower support reinforcement, and weld the drive pipe to the lower support reinforcement. S3. Build the lower support pier casting template, cast the lower support pier, and make the upper surface of the lower support pier flush with the upper surface of the connecting groove. When casting the lower support pier, seal the end of the drive pipe located outside the connecting groove, and cover the main body of the seismic isolation bearing with plastic wrap to reduce the cement mortar from entering the connecting groove. S4. After the lower support pier has dried and solidified, remove the lower support pier casting template, the end of the drive pipe, and the plastic wrap outside the main body of the seismic isolation bearing. Rotate the drive rod into the drive pipe until you feel resistance when rotating the drive rod. At this time, the drive rod contacts the adjustment plate and supports the lower connecting plate. Adjust the limiting piece so that the limiting piece supports the upper connecting plate. S5. Cast the upper support pier using conventional methods. After the upper support pier has dried and solidified, remove the upper support pier casting formwork. S6. After the lower support pier sinks with the ground, use a detection tool to detect the height position that the upper connecting plate needs to be moved to. Based on the detection results, rotate the drive rod to move both the lower and upper connecting plates upward until the upper connecting plate moves to the appropriate position. Finally, rotate the screw to move the screw and the mating plate downward until the mating plate contacts the top plate.

[0015] In summary, this application includes at least one of the following beneficial technical effects: By setting up the main body of the seismic isolation bearing, the upper connecting plate, the lower connecting plate, the connecting groove, the support components and the adjustment components, the height of the upper connecting plate can be adjusted according to the actual situation after the ground and the lower support pier sink. This allows the seismic isolation bearing to be suitable for different support heights, reduces the need to replace the seismic isolation bearing when it sinks, and reduces the construction cost of the seismic isolation layer. By setting up a tray, support column, adjusting plate, mounting block, support rod, drive tube and drive rod, the operator can adjust the height position of the upper connecting plate according to the actual situation; By setting up a top plate, threaded cylinder, screw, and mating plate, the upper connecting plate can be further supported. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the overall structure of the seismic isolation bearing in an embodiment of this application.

[0017] Figure 2 This is a cross-sectional view of the overall structure of the seismic isolation bearing in the embodiments of this application.

[0018] Figure 3 This is a cross-sectional view illustrating the positional relationship between the support member and the connecting groove in an embodiment of this application.

[0019] Figure 4 This is a cross-sectional view illustrating the support structure in an embodiment of this application.

[0020] Figure 5 This is a cross-sectional view illustrating the positional relationship between the adjustment component and the connecting groove in an embodiment of this application.

[0021] Figure 6 This is a cross-sectional view illustrating the structure of the adjustment component in an embodiment of this application.

[0022] Figure 7 This is a cross-sectional view illustrating the structure of the limiting member in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Main body of the seismic isolation bearing; 11. Upper connecting plate; 12. Lower connecting plate; 121. Sliding block; 13. Protective rubber layer; 2. Lower support; 21. Groove; 22. Embedded sleeve; 3. Connecting groove; 31. Top plate; 32. Sliding groove body; 33. Mating groove; 4. Support component; 41. Guide cylinder; 42. Column; 43. Spring; 5. Adjustment component; 51. Support plate; 511. Support column; 512. Strip hole; 52. Adjustment plate; 521. Connecting block; 522. Sliding groove; 53. Mounting block; 54. Support rod; 55. Driving component; 551. Driving tube; 552. Driving rod; 553. Handle; 6. Limiting component; 61. Threaded cylinder; 62. Screw; 63. Mating plate. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0025] This application discloses an adjustable-height seismic isolation bearing in a seismic isolation layer. Installed between a lower support 2 and an upper support 2, the bearing includes a main body 1. The main body 1 comprises an upper connecting plate 11 and a lower connecting plate 12 that are parallel to each other. Both the upper connecting plate 11 and the lower connecting plate 12 are rectangular plates. The upper connecting plate 11 is located below the lower connecting plate 12, and the size of the lower connecting plate is smaller than that of the upper connecting plate 11. A protective rubber layer 13, wrapped around a metal plate and a rubber plate, is provided between the upper connecting plate 11 and the lower connecting plate 12. The cross-section of the protective rubber layer 13 is annular.

[0026] The seismic isolation bearing also includes a connecting groove 3 adapted to the lower connecting plate 12. The lower support 2 is provided with a groove 21 adapted to the connecting groove 3. The lower support 2 is also pre-embedded with a plurality of pre-embedded sleeves 22 for fixing to the connecting groove 3. The connecting groove 3 is inserted into the groove 21. The upper surface of the connecting groove 3 is not lower than the upper surface of the lower support 2. The connecting groove 3 is fixedly connected to the corresponding pre-embedded sleeve 22 by bolts. A ring of top plate 31 is also fixedly connected to the upper surface of the connecting groove 3. The top plate 31 is horizontally set, and the outer side wall of the protective rubber layer 13 contacts and fits the inner side wall of the top plate 31.

[0027] The lower connecting plate 12 is slidably inserted into the connecting groove 3. Two sliders 121 are fixedly connected to the two opposite side walls of the lower connecting plate 12. The two sliders 121 located on the same side wall are arranged along the length direction of the corresponding side wall, and the two sliders 121 are distributed at the two sides of the corresponding side wall. A sliding groove body 32 corresponding to each slider 121 is fixedly connected to the inner side wall of the connecting groove 3. The length direction of the sliding groove body 32 is set along the depth direction of the connecting groove 3. Each slider 121 is slidably inserted into the corresponding sliding groove body 32. The slider 121 and the sliding groove body 32 cooperate to make the lower connecting plate 12 and the connecting groove 3 slide together.

[0028] The connecting groove 3 is provided with a support member 4 to support the lower connecting plate 12. The support member 4 includes guide sleeves fixedly connected to the four corners of the lower surface of the lower connecting plate 12. The cross-section of the guide cylinder 41 is rectangular, and the openings of the four guide cylinders 41 are all set downwards. A column 42 is slidably inserted into the guide cylinder 41. The lower end of the column 42 is fixedly connected to the inner bottom wall of the connecting groove 3. A spring 43 is fixedly connected to the top of the column 42. The upper end of the spring 43 is fixedly connected to the inner top surface of the guide sleeve. The column 42, the spring 43 and the guide sleeve cooperate to support the lower connecting plate 12, so that the lower connecting plate 12 is located in the middle of the connecting groove 3.

[0029] The connecting groove 3 is also provided with an adjustment component 5 for controlling the height position of the lower connecting plate 12 and the upper connecting plate 11. The adjustment component 5 includes a support plate 51 set below the lower connecting plate 12. The support plate 51 is set horizontally. Multiple vertically set pillars 511 are fixedly connected to the upper surface of the support plate 51. The multiple pillars 511 are evenly distributed on the upper surface of the support plate 51. The upper end of the pillars 511 is fixedly connected to the lower surface of the lower connecting plate 12. A strip hole 512 is opened on the support plate 51, and a vertically set adjustment plate 52 is slidably inserted into the strip hole 512. The length direction of the adjustment plate 52 is set along the depth direction of the connecting groove 3. A T-shaped connecting block 521 is fixedly connected to the lower surface of the adjustment plate 52. A mating groove 33 adapted to the connecting block 521 is opened on the inner bottom wall of the connecting groove 3. The length direction of the mating groove 33 is set along the length direction of the strip hole 512. The connecting block 521 is slidably inserted into the mating groove 33.

[0030] A sliding groove 522 is provided on one side wall of the adjusting plate 52. The length direction of the sliding groove 522 is set along the length direction of the adjusting plate 52. A matching mounting block 53 is slidably inserted into the sliding groove 522. The mounting block 53 is a T-shaped block. Two support rods 54 are hinged on the mounting block 53. The two support rods 54 are arranged along the length direction of the adjusting plate 52. The ends of the two support rods 54 away from the mounting block 53 are inclined in a direction away from each other. The end of the upper support rod 54 away from the mounting block 53 is hinged to the lower surface of the support plate 51, and the hinge position is located at the edge of the corresponding side of the support plate 51. The end of the lower support rod 54 away from the mounting block 53 is hinged to the inner bottom wall of the connecting groove 3, and the hinge position is located at the edge of the corresponding side of the inner bottom wall of the connecting groove 3.

[0031] The adjustment assembly 5 also includes a drive component 55 for moving the adjustment plate 52. The drive component 55 is located on the side of the drive plate away from the mounting block 53. The drive component 55 includes a horizontally arranged drive tube 551 located below the support plate 51. The drive tube 551 is fixedly connected to the side wall corresponding to the connecting groove 3. The end of the drive tube 551 away from the connecting groove 3 is located outside the lower support 2. A drive rod 552 is threadedly connected to the drive tube 551. One end of the drive rod 552 is located outside the lower support 2. A handle 553 is fixedly connected to the end of the drive rod 552 outside the lower support 2. The other end of the drive rod 552 extends into the connecting groove 3 and contacts the side wall of the adjustment plate 52 away from the mounting block 53.

[0032] The top plate 31 is also provided with a limiting member 6 to support the upper connecting plate 11. The limiting member 6 includes a plurality of threaded cylinders 61 fixedly connected to the lower surface of the upper connecting plate 11. The threaded cylinders 61 are vertically arranged with their openings facing downwards. The plurality of threaded cylinders 61 are evenly distributed on the upper connecting plate 11. In this embodiment, the number of threaded cylinders 61 is two. A screw 62 is threadedly connected to the threaded cylinder 61. A horizontal mating plate 63 is fixedly connected to the lower end of the screw 62. The mating plate 63 is in contact with the upper surface of the top plate 31.

[0033] Before installing the seismic isolation bearing, the operator needs to inspect the connecting groove 3 and the main body 1 of the seismic isolation bearing. After the inspection is correct, rotate the drive rod 552 to disengage the drive rod 552 from the drive tube 551. After preparation, install the connecting groove 3. First, determine the position of the connecting groove 3 and the reinforcing bar of the lower support 2, and fix the embedded sleeve 22 to support and position the connecting groove 3. Then, tie the reinforcing bar of the lower support 2 and weld the embedded sleeve 22 to the reinforcing bar of the lower support 2. Weld the drive tube 551 to the reinforcing bar of the lower support 2 as well. Then, build the casting template of the lower support 2 and place the end of the drive tube 551 away from the connecting groove 3 outside the casting template of the lower support 2.

[0034] After the formwork for the lower support 2 is erected, wrap the part of the seismic isolation bearing body 1 exposed outside the connecting groove 3 with plastic wrap. Then, seal the end of the drive pipe 551 located outside the formwork for the lower support 2 to reduce the occurrence of cement mortar splashing into the seismic isolation bearing body 1 and the drive pipe 551 when the lower support 2 is poured. After that, pour cement mortar into the formwork for the lower support 2, and after the lower support 2 has solidified, remove the formwork for the lower support 2.

[0035] After the formwork for the lower support pier 2 is removed, hold the handle 553 and rotate the drive rod 552 into the drive tube 551 until the drive rod 552 contacts the adjusting plate 52. As the drive rod 552 continues to rotate, the operator will feel resistance and stop rotating the drive rod 552. The drive tube 551, drive rod 552, adjusting plate 52, support rod 54 and support member 4 cooperate to support the lower connecting plate 12 of the seismic isolation bearing body 1. Then rotate the screw 62 to move the screw 62 and mating plate 63 downward until the mating plate 63 contacts the upper surface of the top plate 31. At this time, the threaded cylinder 61 cooperates with the screw 62 and mating plate 63 to support the upper connecting plate 11. Then, the upper support pier is poured according to the conventional method. After the upper support pier dries and solidifies, the formwork for the upper support pier is removed.

[0036] After the lower support pier 2 sinks with the ground, the operator uses a detection tool to determine the height position to which the upper connecting plate 11 needs to be moved. Based on the detection result, the operator rotates the handle 553, which drives the drive rod 552 to rotate, causing the drive rod 552 to push the adjusting plate 52 to move away from the drive tube 551. The movement of the adjusting plate 52 causes the mounting block 53 to move at one end corresponding to the two support rods 54, causing the ends of the two support rods 54 away from the mounting block 53 to move away from each other again. This pushes the support plate 51, the support column 511, the lower connecting plate 12, and the upper connecting plate 11 to move upward. At the same time, the support rods 54 also drive the mounting block 53 to move upward on the adjusting plate 52. The movement of the lower connecting plate 12 drives the guide cylinder 41 to move upward, thereby stretching the spring 43.

[0037] When the upper connecting plate 11 moves upward, it drives the threaded cylinder 61, screw 62, and mating plate 63 to move upward, causing the mating plate 63 to disengage from the top plate 31. When the upper connecting plate 11 moves to the predetermined position, the handle 553 is stopped, and the drive rod 552 and adjusting plate 52 stop moving. Due to the elastic force of the spring 43 and the weight of the vibration isolation support body 1 itself, the support rod 54 pushes the adjusting plate 52 to press against the drive rod 552. The drive rod 552, adjusting plate 52, support rod 54, support plate 51, and support column 511 cooperate to support the lower connecting plate 12, keeping the lower connecting plate 12 and the upper connecting plate 11 at the same height. Finally, the screw 62 is rotated, causing the screw 62 and mating plate 63 to move downward until the mating plate 63 contacts the top plate 31 again. The screw 62 and threaded cylinder 61 of the top plate 31 cooperate to provide further support for the upper connecting plate 11.

[0038] During an earthquake, when the upper and lower piers 2 move horizontally relative to each other, the upper connecting plate 11 moves the threaded cylinder 61, the screw 62, and the mating plate 63, causing the mating plate 63 to move relative to the top plate 31. At this time, the top plate 31, in conjunction with the mating plate 63, the screw 62, and the threaded cylinder 61, can also support the upper connecting plate 11 and the upper pier. Through the above operation, after the ground and lower pier 2 subside, the height of the upper connecting plate 11 can be adjusted according to the actual situation, so that the seismic isolation bearing can be adapted to different support heights, reducing the need to replace the seismic isolation bearings due to subsidence and lowering the construction cost of the seismic isolation layer.

[0039] The implementation principle of an adjustable height seismic isolation bearing in a seismic isolation layer according to an embodiment of this application is as follows: Before installing the seismic isolation bearing, the connecting groove 3 and the main body 1 of the seismic isolation bearing need to be inspected first. After passing the inspection, the bearing is put into use, and the drive rod 552 is rotated to disengage the drive rod 552 from the drive tube 551. When installing the seismic isolation bearing, the position of the connecting groove 3 needs to be determined first, and the embedded sleeve 22 needs to be supported and fixed. Then, the connecting groove 3 and the embedded sleeve 22 are connected and fixed by bolts. Then, the reinforcing steel of the lower support pier 2 is tied, and the embedded sleeve 22 and the drive tube 551 are welded and fixed to the reinforcing steel of the lower support pier 2.

[0040] Erect the casting template for the lower support pier 2, then cover the main body 1 of the seismic isolation bearing located above the top slab 31 with plastic wrap. Seal the end of the drive pipe 551 outside the casting template of the lower support pier 2. Then pour cement mortar into the casting template of the lower support pier 2 and wait for the lower support pier 2 to solidify. Then remove the casting template of the lower support pier 2. Remove the plastic wrap on the seismic isolation bearing and take out the sealing material at the end of the drive pipe 551. Rotate the drive rod 552 into the drive pipe 551 until you feel obvious resistance when rotating the drive rod 552. At this time, stop rotating the drive rod 552 and rotate the screw 62 until the mating plate 63 contacts the top slab 31. Cast the upper support pier according to the conventional method. After the upper support pier dries and solidifies, remove the casting template of the upper support pier.

[0041] After the lower support 2 sinks into the ground, the detection tool is used to detect the height position that the upper connecting plate 11 needs to be moved to. Based on the detection result, the drive rod 552 is rotated to move the lower connecting plate 12 and the upper connecting plate 11 upward until the upper connecting plate 11 moves to the appropriate position. Finally, the screw 62 is rotated to move the screw 62 and the mating plate 63 downward until the mating plate 63 contacts the top plate 31.

[0042] This application also discloses an installation method for an adjustable-height seismic isolation bearing in a seismic isolation layer, for use with the aforementioned adjustable-height seismic isolation bearing, comprising the following steps: S1. Check the connection groove 3 and the vibration isolation support body 1, and rotate the drive rod 552 to disengage the drive rod 552 from the drive tube 551. S2. Determine the position of the connecting groove 3, fix the embedded sleeve 22, and fix the connecting groove 3 and the embedded sleeve 22 with bolts to complete the support and positioning of the connecting groove 3. Tie the reinforcing bars of the lower support pier 2, fix the embedded sleeve 22 and the reinforcing bars of the lower support pier 2, and weld the drive pipe 551 and the reinforcing bars of the lower support pier 2. S3. Build the casting template for the lower support pier 2, cast the lower support pier 2, and make the upper surface of the lower support pier 2 flush with the upper surface of the connecting groove 3. When casting the lower support pier 2, seal the end of the drive pipe 551 located outside the connecting groove 3, and cover the main body 1 of the seismic isolation bearing with plastic wrap to reduce the cement mortar from entering the connecting groove 3. S4. After the lower support 2 has dried and solidified, remove the casting template of the lower support 2, the end of the drive pipe 551 and the plastic wrap outside the main body of the seismic isolation bearing 1. Rotate the drive rod 552 into the drive pipe 551 until resistance is felt when rotating the drive rod 552. At this time, the drive rod 552 contacts the adjusting plate 52 and supports the lower connecting plate 12. Adjust the limiting piece 6 so that the limiting piece 6 supports the upper connecting plate 11. S5. Cast the upper support pier using conventional methods. After the upper support pier has dried and solidified, remove the upper support pier casting formwork. S6. After the lower support pier 2 sinks with the ground, use a detection tool to detect the height position that the upper connecting plate 11 needs to be moved to. According to the detection result, rotate the drive rod 552 to move both the lower connecting plate 12 and the upper connecting plate 11 upward until the upper connecting plate 11 moves to the appropriate position. Finally, rotate the screw 62 to move the screw 62 and the mating plate 63 downward until the mating plate 63 contacts the top plate 31.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seismic isolation bearing with adjustable height in a seismic isolation layer, comprising a seismic isolation bearing body (1), wherein the seismic isolation bearing body (1) comprises a horizontally arranged upper connecting plate (11) and a lower connecting plate (12), a protective rubber layer (13) with a circular cross-section is provided between the upper connecting plate (11) and the lower connecting plate (12), both the upper connecting plate (11) and the lower connecting plate (12) are fixedly connected to one end of the protective rubber layer (13), and the lower connecting plate (12) is installed on a lower support (2), characterized in that: The upper surface of the lower support (2) is provided with a groove (21), and a connecting groove (3) adapted to the lower connecting plate (12) is inserted into the groove (21). The lower support (2) is pre-embedded with multiple pre-embedded sleeves (22) for fixing with the connecting groove (3). Bolts corresponding to the pre-embedded sleeves (22) are inserted into the bottom wall of the connecting groove (3). The bolts are threaded into the corresponding pre-embedded sleeves (22). The lower connecting plate (12) is slidably inserted into the connecting groove (3). The sliding direction of the lower connecting plate (12) is set along the depth direction of the connecting groove (3). The bottom wall of the connecting groove (3) is provided with a support member (4) to support the lower connecting plate (12); The connecting groove (3) is also provided with an adjustment component (5) for adjusting the height of the lower connecting plate (12) at a position below the lower connecting plate (12).

2. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 1, characterized in that: Two sliders (121) are fixedly connected to the two opposite side walls of the lower connecting plate (12). The two sliders (121) on the same side are arranged along the length direction of the corresponding side wall of the lower connecting plate (12). The connecting groove (3) and the side wall corresponding to the slider (121) are fixedly connected to a sliding groove body (32) that corresponds to the slider (121). The length direction of the sliding groove body (32) is set along the depth direction of the connecting groove (3). Each slider (121) is slidably inserted into the corresponding sliding groove body (32).

3. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 1, characterized in that: The support member (4) includes guide cylinders (41) fixedly connected to the four corners of the lower surface of the lower connecting plate (12). The opening of the guide cylinder (41) faces downward. A support column (511) is slidably inserted into the guide cylinder (41). The lower end of the support column (511) is fixed to the inner bottom wall of the connecting groove (3). A spring (43) is fixedly connected to the upper end surface of the support column (511). The upper end of the spring (43) is fixedly connected to the inner top surface of the guide cylinder (41). The support column (511), the guide cylinder (41) and the spring (43) cooperate to make the lower connecting plate (12) located in the middle of the connecting groove (3).

4. A seismic isolation bearing with adjustable height in a seismic isolation layer according to claims 1 to 3, characterized in that: The adjustment component (5) includes a support plate (51) disposed below the lower connecting plate (12). The support plate (51) is provided with multiple support columns (511) fixedly connected to the upper surface of the support plate (51). The upper ends of the support columns (511) are fixedly connected to the lower surface of the lower connecting plate (12). Support rods (54) are hinged to the lower surface of the tray (51) and the inner bottom wall of the connecting groove (3). The hinge points of the tray (51) and the connecting groove (3) and the support rods (54) are all located at the same side edge inside the connecting groove (3). The end of the support rod (54) away from the tray (51) is hinged to the mounting block (53). The end of the other support rod (54) away from the connecting groove (3) is also hinged to the mounting block (53). The ends of the two support rods (54) near the mounting block (53) are inclined in the direction of mutual approach, and the ends of the two support rods (54) away from the mounting block (53) are inclined in the direction of mutual distance. A vertically arranged adjusting plate (52) is slidably connected to the inner bottom wall of the connecting groove (3). The length direction of the adjusting plate (52) is set along the depth direction of the connecting groove (3). The adjusting plate (52) is located below the lower connecting plate (12), and the adjusting plate (52) passes through the support plate (51) and is slidably inserted with the support plate (51). The sliding direction of the adjusting plate (52) is set along the length direction of the support rod (54). The mounting block (53) is slidably connected to the side wall of the adjusting plate (52), and the mounting block (53) slides along the length of the adjusting plate (52) on the adjusting plate (52); The lower support (2) and the connecting groove (3) are both provided with a driving component (55) for moving the adjusting plate (52). The driving component (55) is located on the side of the adjusting plate (52) away from the mounting block (53).

5. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 4, characterized in that: The driving component (55) includes a driving pipe (551) that is fixedly connected to the connecting groove (3). The driving pipe (551) is horizontally arranged and is embedded in the lower support (2). One end of the driving pipe (551) away from the connecting groove (3) is located outside the lower support (2). A driving rod (552) is threadedly connected in the driving pipe (551). One end of the driving rod (552) is located outside the lower support (2), and the other end of the driving rod (552) extends into the connecting groove (3). One end of the driving rod (552) in the connecting groove (3) contacts the side wall of the adjusting plate (52) away from the mounting block (53).

6. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 4, characterized in that: The lower surface of the adjusting plate (52) is fixedly connected to a T-shaped connecting block (521). The inner bottom wall of the connecting groove (3) is provided with a mating groove (33) that is adapted to the connecting block (521). The length direction of the mating groove (33) is set along the sliding direction of the adjusting plate (52), and the connecting block (521) is slidably inserted into the mating groove (33).

7. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 4, characterized in that: The mounting block (53) is a T-shaped block. The adjusting plate (52) has a sliding groove (522) adapted to the mounting block (53) on its side wall near the mounting block (53). The length direction of the sliding groove (522) is set along the length direction of the adjusting plate (52). The mounting block (53) is slidably inserted into the sliding groove (522).

8. The adjustable-height seismic isolation bearing in a seismic isolation layer according to claim 5, characterized in that: A ring of top plate (31) is fixedly connected to the top of the connecting groove (3). The protective rubber layer (13) is in contact with the inner side wall of the top plate (31). The top plate (31) is provided with a limiting member (6) to support the upper connecting plate (11).

9. A seismic isolation bearing with adjustable height in a seismic isolation layer according to claim 8, characterized in that: The limiting component (6) includes multiple threaded cylinders (61) fixedly connected to the lower surface of the upper connecting plate (11). The multiple threaded cylinders (61) are evenly distributed on the upper connecting plate (11). The length direction of the threaded cylinders (61) is set along the height direction of the seismic isolation support body (1). A screw (62) is threadedly connected in the threaded cylinder (61). A horizontal mating plate (63) is fixedly connected to the lower end of the screw (62). The lower surface of the mating plate (63) is in contact with the upper surface of the top plate (31).

10. A method for installing an adjustable-height seismic isolation bearing in a seismic isolation layer, characterized in that: The adjustable-height seismic isolation bearing according to any one of claims 1 to 9 comprises the following steps: S1. Check the connection groove (3) and the main body (1) of the seismic isolation bearing, rotate the drive rod (552) to disengage the drive rod (552) from the drive tube (551); S2. Determine the position of the connecting groove (3), fix the embedded sleeve (22), and fix the connecting groove (3) and the embedded sleeve (22) with bolts to complete the support positioning of the connecting groove (3), tie the reinforcing bars of the lower support (2), fix the embedded sleeve (22) and the reinforcing bars of the lower support (2), and weld the drive pipe (551) and the reinforcing bars of the lower support (2) to fix them. S3. Build the casting template for the lower support (2), cast the lower support (2), and make the upper surface of the lower support (2) flush with the upper surface of the connecting groove (3). When casting the lower support (2), seal the end of the drive pipe (551) outside the connecting groove (3), and cover the main body (1) of the seismic isolation bearing with plastic wrap to reduce the cement mortar from entering the connecting groove (3). S4. After the lower support (2) has dried and solidified, remove the casting template of the lower support (2), the end of the drive pipe (551) and the plastic wrap outside the main body (1) of the seismic isolation bearing. Rotate the drive rod (552) into the drive pipe (551) until you feel resistance when rotating the drive rod (552). At this time, the drive rod (552) contacts the adjusting plate (52) to support the lower connecting plate (12). Adjust the limiting piece (6) so that the limiting piece (6) supports the upper connecting plate (11). S5. Cast the upper support pier using conventional methods. After the upper support pier has dried and solidified, remove the upper support pier casting formwork. S6. After the lower support (2) sinks with the ground, use the detection tool to detect the height position that the upper connecting plate (11) needs to move to. According to the detection result, rotate the drive rod (552) to make both the lower connecting plate (12) and the upper connecting plate (11) move upward until the upper connecting plate (11) moves to the appropriate position. Finally, rotate the screw (62) to make the screw (62) and the mating plate (63) move downward until the mating plate (63) contacts the top plate (31).

Images