Prefabricated building anti-seismic reinforcing structure and construction method thereof

Abstract

The application relates to the technical field of building construction installation, in particular to a fabricated building anti-seismic reinforcing structure and a construction method thereof, which comprises a foundation, a house main body, a shock insulation assembly, a damping assembly and an inflation assembly. The house main body is located on the foundation, and a gap exists between the house main body and the foundation. The shock insulation assembly and the damping assembly are both installed between the house main body and the foundation, and the damping assembly comprises an air bag body and a friction piece. One end of the inflation assembly is connected to the shock insulation assembly, and the other end is connected to the air bag body. The inflation assembly is used for inflating the air bag body by using the movement of the shock insulation assembly, so that one end of the damping assembly abuts against the foundation, and the other end abuts against the house main body. The abutment of the damping assembly increases the friction between the foundation and the house main body, thereby improving the damping effect of the damping assembly, and further making the house main body quickly recover to be stable. The application has the effect of improving the anti-seismic performance of buildings.

Description

Technical Field

[0001] This application relates to the technical field of building construction and installation, and in particular to a prefabricated building seismic reinforcement structure and its construction method. Background Technology

[0002] Prefabricated structures are a new type of building structure. Their main characteristic is the prefabrication of components in factories and rapid on-site assembly, offering advantages such as fast construction speed, controllable quality, and environmental friendliness and energy efficiency. Prefabricated structures are also generally more flexible in design, capable of meeting diverse building requirements. Therefore, they are widely used in industrial plants, stadiums, bridges, and other similar projects.

[0003] Currently, base isolation structures, such as friction pendulum bearings and rubber seismic isolation bearings, are used in prefabricated structures to separate the building from the foundation, thereby reducing the transmission of seismic waves generated during an earthquake to the building and thus lowering the risk of damage. However, when the earthquake intensity is high, base isolation structures cannot completely eliminate vibrations, and the building will still vibrate. Damping devices help control structural vibrations, reduce vibration amplitude, and improve the stability and seismic resistance of the structure.

[0004] Regarding the aforementioned technologies, damping devices are typically installed inside the base isolation structure. Therefore, the size of the damping device is limited by the base isolation structure, resulting in a limited damping effect and thus a limited ability to reduce vibration amplitude. Summary of the Invention

[0005] In order to improve the damping effect of building damping structures and enhance the seismic resistance of buildings, this application provides a prefabricated building seismic reinforcement structure and its construction method.

[0006] This application provides a prefabricated building seismic strengthening structure and its construction method, which adopts the following technical solution: A prefabricated building seismic reinforcement structure includes: foundation; The main body of the house is located on the foundation, and there is a gap between the main body of the house and the foundation; A seismic isolation assembly is installed between the foundation and the main body of the building. The seismic isolation assembly includes a lower support column, a spherical liner, and an upper support column. The lower support column is installed on the foundation, and the upper support column is installed on the main body of the building. The opposite sides of the upper support column and the lower support column are concave inward to form an arc shape. The spherical liner is installed between the lower support column and the upper support column. A damping assembly is installed between the main body of the house and the foundation, and the damping assembly includes an airbag and a friction element; An inflatable assembly, one end of which is connected to the vibration isolation assembly and the other end of which is connected to the damping assembly, is used to inflate the airbag by the movement of the vibration isolation assembly, so that one end of the damping assembly abuts against the foundation and the other end abuts against the main body of the house.

[0007] By adopting the above technical solution, when a strong earthquake occurs, the foundation achieves a seismic isolation effect through the sliding connection of the lower support column, spherical liner, and upper support column, greatly reducing the transmission of seismic waves to the main body of the building. However, due to the high intensity of the earthquake, the main body of the building will still vibrate. The seismic waves are relatively short-lived, and the foundation will stabilize quickly. However, due to the sliding connection of the lower support column, spherical liner, and upper support column, the main body of the building is difficult to stabilize quickly.

[0008] At this time, the air-filled component uses the relative swaying of the upper and lower support columns and the upper support column of the seismic isolation component to inflate the airbag body, thereby abutting one end of the damping component against the foundation and the other end against the main body of the building, increasing the friction between the foundation and the main body of the building, thereby improving the damping effect of the damping component, and thus enabling the main body of the building to quickly return to stability, thereby improving the seismic performance of the building.

[0009] Optionally, the airbag body is provided with a vent hole and a pressure relief hole, and the pressure relief hole is sealed with a sealing element.

[0010] By adopting the above technical solution, the vent hole is extremely small, allowing only slow air release. This creates a gap between the damping component and the foundation or main structure of the building when the inflation component is not in operation. However, when the inflation component is in operation, the inflation volume is much greater than the air release volume of the vent hole. Therefore, the inflation component can control the damping component to abut against the foundation and the main structure of the building.

[0011] Meanwhile, to prevent the inflatable components from over-inflating and causing the foundation to detach from the main structure of the building, the pressure relief hole is relatively large. The air release capacity of the pressure relief hole is greater than the air release capacity of the inflatable components. Therefore, when the sealing component on the pressure relief hole is subjected to greater pressure and opens, the pressure relief hole can release the gas inside the airbag.

[0012] Optionally, the sealing component includes a frame, an elastic element, and a sealing block. The frame is fixedly connected to the opening of the pressure relief hole, one end of the elastic element is fixedly connected to the frame, and the other end is fixedly connected to the sealing block, so that the sealing block seals the pressure relief hole.

[0013] By adopting the above technical solution, when the pressure inside the airbag is greater than the elastic force of the elastic element, the gas in the airbag will push the sealing block open, so that the gas inside the airbag can be discharged from the pressure relief hole, thereby preventing the inflation component from over-inflating the airbag.

[0014] Optionally, the airbag is mounted on the foundation, and the friction element is mounted on the side of the airbag closer to the main body of the house.

[0015] By adopting the above technical solution, the airbag body and friction components are installed on the foundation, which facilitates construction by operators.

[0016] Optionally, a limiting rod is fixedly connected to the foundation, and there is a gap between the limiting rod and the main body of the house. A limiting hole is opened on the friction member, and the limiting rod passes through the limiting hole.

[0017] By adopting the above technical solution, the friction component moves along the length of the limiting rod by utilizing the cooperation of the limiting rod and the limiting hole, thus preventing the friction component from sliding arbitrarily.

[0018] Optionally, the friction element includes a plurality of rubber pads stacked along the limiting rod.

[0019] By adopting the above technical solution, the friction component is set as multiple rubber pads, making it easy to replace the top rubber pad after it wears out.

[0020] Optionally, the inflation assembly includes a movable rod and a return spring. An air chamber is formed within the lower support column. The movable rod is slidably connected vertically within the air chamber. The upper end of the movable rod extends out of the lower support column, and the lower end of the movable rod is located within the air chamber. The outer peripheral wall of the movable rod abuts against the inner wall of the air chamber. One end of the return spring is fixedly connected to the bottom end of the movable rod, and the other end is fixedly connected to the inner wall of the air chamber. The return spring drives the movable rod to exit the air chamber. One end of the air chamber has an air inlet, and the other end has an air outlet. The air outlet communicates with the airbag body. The air inlet is equipped with an air inlet check valve to control the airflow from the air inlet to the air chamber. The air outlet is equipped with an air outlet check valve to control the gas flow from the air chamber to the airbag body.

[0021] By adopting the above technical solution, when an earthquake occurs, the lower and upper support columns slide relative to each other, thereby changing the position of the spherical liner between the lower and upper support columns. This causes the spherical liner to squeeze the movable rod, and the movable rod, after being squeezed, compresses the gas in the air chamber. At this time, the air inlet check valve blocks the air inlet, allowing the gas to inflate the airbag through the air outlet.

[0022] When the spherical liner moves away from the movable rod, the return spring resets the movable rod, causing the end of the movable rod to exit the air chamber again. At this time, the air outlet check valve blocks the air outlet, and the air chamber draws air into the outside through the air inlet.

[0023] Because earthquakes are generally short-lived, the main structure of a building will continue to sway after the earthquake. By repeatedly sliding the lower and upper support columns, the movable rod moves up and down continuously, thereby continuously filling the airbag with gas. This causes the airbag to expand, lifting the friction component and placing it against the bottom of the main structure of the building.

[0024] Optionally, the intake backflow preventer includes an intake backflow preventer plate and an intake backflow preventer spring. The intake backflow preventer plate is rotatably connected to the lower seat post and can rotate toward the air chamber. The intake backflow preventer spring is mounted on the lower seat post and is used to control the intake backflow preventer plate to abut against the lower seat post to block the air inlet. The outflow check valve includes an outflow check plate and an outflow check spring. The outflow check plate is rotatably connected to the lower seat post and can rotate away from the air cavity. The outflow check spring is mounted on the lower seat post and is used to control the outflow check plate to abut against the lower seat post to block the air outlet.

[0025] By adopting the above technical solution, the intake check plate and intake check spring work together to ensure that when air enters the air chamber, the air chamber is connected to the outside world, and when air exits the air chamber, the intake check plate blocks the air inlet and isolates the air chamber from the outside world.

[0026] Simultaneously, by utilizing the cooperation of the outlet check plate and the outlet check spring, when air is discharged from the air chamber, the air chamber is connected to the air bladder body, while when air is introduced, the outlet check plate blocks the outlet, isolating the air chamber from the air bladder body, thereby achieving the effect of continuously injecting air into the air bladder body.

[0027] Optionally, multiple inflatable components are provided, and the multiple inflatable components are evenly distributed around the axis of the lower seat column.

[0028] By adopting the above technical solution, the combined effect of multiple inflation components makes inflation more efficient.

[0029] This application also discloses a construction method for a prefabricated building seismic reinforcement structure, including: Foundation preparation: excavate foundation pits, place concrete hoses inside the pits to form the foundation, and ensure that the foundation surface is flat and free of obstructions; Install seismic isolation and install the lower support column on the foundation; Install damping, install the damping components on the foundation, and use the inflation components to connect the lower seat column to the airbag body; Construct the main structure by installing the upper column on the base plate of the main structure, installing the spherical liner on the lower column, then installing the lower column on the upper column, with the spherical liner positioned between the lower and upper columns. Finally, construct the entire main structure on the base plate of the main structure.

[0030] By adopting the above technical solution, the construction of the prefabricated building seismic reinforcement structure is completed through foundation preparation, installation of seismic isolation, installation of damping, and construction of the main structure.

[0031] First, excavate a foundation pit and place concrete hoses inside to form a foundation, ensuring the foundation surface is flat and free of obstructions. Then, install the lower support column on the foundation, followed by the damping assembly. Use the inflatable assembly to connect the lower support column to the airbag body. Next, install the upper support column on the base plate of the main building and install the spherical liner on the lower support column. Then, install the lower support column on the upper support column, positioning the spherical liner between the lower and upper support columns. Finally, construct the entire main structure on the base plate of the main building to complete the installation of the prefabricated building.

[0032] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the coordination of the foundation, main body of the building, lower column, spherical liner, upper column, airbag, friction components, and inflation components, during an earthquake, the inflation components utilize the relative swaying of the upper and lower columns of the seismic isolation components to inflate the airbag, thereby placing one end of the damping component against the foundation and the other end against the main body of the building. This increases the friction between the foundation and the main body of the building, enhances the damping effect of the damping components, and allows the main body of the building to quickly return to stability, thus improving the seismic performance of the building. 2. Through the cooperation of the movable rod, return spring, air chamber, air inlet, air outlet, air inlet check valve, and air outlet check valve, the movable rod can slide up and down repeatedly when the spherical liner slides between the lower seat post and the upper seat post, thereby achieving the effect of inflating the airbag. 3. By cooperating with the limiting rod and the limiting hole, the friction component moves along the length of the limiting rod, thereby restricting the friction component from sliding freely. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of a prefabricated building seismic reinforcement structure according to an embodiment of this application.

[0034] Figure 2 This is a diagram of the internal structure of the foundation in an embodiment of this application.

[0035] Figure 3 This is a top view of a prefabricated building seismic reinforcement structure according to an embodiment of this application.

[0036] Figure 4 yes Figure 3 Sectional view at point AA.

[0037] Figure 5 yes Figure 3Sectional view at point BB.

[0038] Figure 6 This is a half-sectional view of the vibration isolation component in the embodiments of this application.

[0039] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0040] Figure 8 This is a flowchart of a construction method for a prefabricated building seismic reinforcement structure according to an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures: 1. Foundation; 2. Main body of the building; 3. Seismic isolation components; 31. Lower support column; 311. Air chamber; 312. Air inlet; 313. Air outlet; 32. Spherical liner; 33. Upper support column; 4. Damping components; 41. Airbag body; 411. Air vent; 412. Pressure relief hole; 42. Friction component; 421. Rubber pad; 5. Inflation component; 51. Movable rod; 52. Return spring; 53. Air inlet backflow preventer; 531. Air inlet backflow preventer plate; 532. Air inlet backflow preventer spring; 54. Air outlet backflow preventer; 541. Air outlet backflow preventer plate; 542. Air outlet backflow preventer spring; 6. Sealing component; 61. Frame; 62. Elastic component; 63. Sealing block; 7. Limiting rod. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0043] This application discloses a prefabricated building seismic reinforcement structure.

[0044] Reference Figure 1 and Figure 2 A prefabricated seismic reinforcement structure for buildings includes a foundation 1, a main building 2, a seismic isolation component 3, a damping component 4, and an inflatable component 5. The main building 2 is located on the foundation 1, and there is a gap between the main building 2 and the foundation 1. Both the seismic isolation component 3 and the damping component 4 are installed between the main building 2 and the foundation 1. The damping component 4 includes an airbag 41 and a friction element 42. One end of the inflatable component 5 is connected to the seismic isolation component 3, and the other end is connected to the airbag 41. The inflatable component 5 is used to inflate the airbag 41 by utilizing the movement of the seismic isolation component 3, so that one end of the damping component 4 abuts against the foundation 1, and the other end abuts against the main building 2. The abutment of the damping component 4 increases the friction between the foundation 1 and the main building 2, thereby improving the damping effect of the damping component 4, and thus enabling the main building 2 to quickly return to stability, achieving the effect of improving the seismic resistance of the building.

[0045] In this embodiment, four seismic isolation components 3 are provided between the foundation 1 and the main body 2 of the building. The four seismic isolation components 3 are arranged in a rectangular shape. The damping component 4 is installed in the middle of the four seismic isolation components 3, so that when the damping component 4 abuts against the foundation 1 and the main body 2 of the building, the contact area of ​​the damping component 4 is larger and it is located in the center of the main body 2 of the building, thus making the main body 2 of the building more stable.

[0046] Reference Figure 3 and Figure 4 The seismic isolation component 3 includes a lower support column 31, a spherical liner 32, and an upper support column 33. The lower support column 31 is installed on the foundation 1, and the upper support column 33 is installed on the main body 2 of the building. The opposite side of the upper support column 33 and the lower support column 31 is concave inward to form an arc shape. The spherical liner 32 is installed between the lower support column 31 and the upper support column 33.

[0047] The relative sliding of the lower column 31 and the upper column 33 in the seismic isolation component 3 achieves the effect of seismic isolation. Thus, when an earthquake occurs, the foundation 1 greatly reduces the transmission of seismic waves to the main body 2 through the sliding connection of the lower column 31, the spherical liner 32 and the upper column 33.

[0048] When the earthquake intensity is high, the seismic isolation component 3 cannot completely prevent seismic waves from being transmitted to the main body of the building 2, so the main body of the building 2 will still vibrate. The duration of seismic waves is relatively short, usually around 90 seconds. Therefore, after the seismic waves pass, the foundation 1 will stabilize quickly. However, due to the sliding connection of the lower support column 31, the spherical liner 32 and the upper support column 33, the main body of the building 2 is difficult to stabilize quickly. The continuous shaking of the main body of the building 2 can easily cause damage to the main body of the building 2.

[0049] Therefore, a damping component 4 is installed. By controlling the relative swaying of the lower support column 31 and the upper support column 33, the spherical liner 32 controls the inflation component 5 to inflate the airbag 41, thereby placing one end of the damping component 4 against the foundation 1 and the other end against the main body of the building 2, increasing the friction between the foundation 1 and the main body of the building 2, thereby improving the damping effect of the damping component 4, and thus enabling the main body of the building 2 to quickly return to stability, thereby improving the seismic performance of the building.

[0050] There is a gap between the damping component 4 and the main body 2 of the building, which reduces the possibility of seismic waves being transmitted to the main body 2 of the building through the damping component 4 during an earthquake.

[0051] In this embodiment, the airbag body 41 is installed on the foundation 1, and the friction element 42 is installed on the side of the airbag body 41 closest to the main building 2. In other embodiments, the airbag can also be installed on the main building 2, or the airbag body 41 can be positioned between the main building 2 and the foundation 1. Inflating the airbag body 41 will cause the damping component 4 to abut against the main building 2 and the foundation 1. Installing the airbag body 41 and the friction element 42 on the foundation 1 facilitates the installation of the damping component 4 by operators.

[0052] Reference Figure 4 and Figure 5 The airbag body 41 has a vent hole 411 and a pressure relief hole 412, and the pressure relief hole 412 is sealed with a sealing element 6. In this embodiment, the vent hole 411 is extremely small, and can only release air slowly. This means that when the inflation component 5 is not working, the inflation volume of the inflation component 5 is much greater than the air release volume of the vent hole 411. Therefore, the inflation component 5 can control the damping component 4 to abut against the foundation 1 and the main body of the building 2.

[0053] Furthermore, since the airbag 41 is installed on the foundation 1, after the earthquake, the airbag 41 will be subjected to the gravity of the friction component 42, causing the gas inside the airbag 41 to be discharged through the vent 411, so that the damping component 4 returns to a state with a gap between it and the main body of the building 2, thus preparing for the next earthquake.

[0054] The pressure relief hole 412 and the sealing component 6 are designed to prevent the inflation component 5 from over-inflating due to prolonged earthquakes, which could cause the foundation 1 to detach from the main building 2. Therefore, the pressure relief hole 412 is relatively large, and the amount of air released from the pressure relief hole 412 is greater than the amount of air injected into the inflation component 5. Thus, when the sealing component 6 on the pressure relief hole 412 is subjected to greater pressure and opens, the pressure relief hole 412 can release the gas inside the airbag 41.

[0055] The sealing component 6 includes a frame 61, an elastic element 62, and a sealing block 63. The frame 61 is fixedly connected to the opening of the pressure relief hole 412. One end of the elastic element 62 is fixedly connected to the frame 61, and the other end is fixedly connected to the sealing block 63, so that the sealing block 63 seals the pressure relief hole 412.

[0056] After the airbag 41 is inflated, the friction element 42 at the upper end of the airbag 41 abuts against the lower end of the house body 2. When the pressure inside the airbag 41 is greater than the elastic force of the elastic element 62, the gas in the airbag 41 will push the sealing block 63 open, so that the gas inside the airbag 41 can be discharged from the pressure relief hole 412, thereby preventing the inflation component 5 from over-inflating the airbag 41.

[0057] Reference Figure 1Four limiting rods 7 are fixedly connected vertically to the foundation 1, arranged in a rectangular pattern. There is a gap between the top of each limiting rod 7 and the main body 2 of the building. Limiting holes are formed on the friction element 42, and the limiting rods 7 pass through these holes. The cooperation between the limiting rods 7 and the limiting holes limits the sliding direction of the friction element 42, allowing it to move along the length of the limiting rods 7 and preventing it from sliding freely.

[0058] In this embodiment, the friction member 42 includes a plurality of rubber pads 421 stacked along the limiting rod 7. The rubber pads 421 are sequentially threaded onto the limiting rod 7, and the limiting rod 7 facilitates the installation of the rubber pads 421. Furthermore, having multiple rubber pads 421 allows for easy replacement of worn rubber pads 421 according to their degree of damage.

[0059] Each vibration isolation component 3 is provided with multiple inflatable components 5, which are evenly distributed around the axis of the lower seat column 31. In this embodiment, each vibration isolation component 3 is provided with 4 inflatable components 5. In other embodiments, the number of inflatable components 5 may also be 2, 3, or 5. By utilizing the combined action of multiple inflatable components 5, the inflatable components 5 can inflate into the airbag body 41 when the lower seat column 31 and the upper seat column 33 slide in any direction. The arrangement of multiple inflatable components 5 makes the inflation efficiency higher.

[0060] Reference Figure 6 and Figure 7 The inflation assembly 5 includes a movable rod 51 and a return spring 52. An air chamber 311 is formed inside the lower seat post 31. The movable rod 51 is vertically slidably connected within the air chamber 311. The upper end of the movable rod 51 extends out of the lower seat post 31, and the lower end of the movable rod 51 is located within the air chamber 311. The outer peripheral wall of the movable rod 51 abuts against the inner wall of the air chamber 311. One end of the return spring 52 is fixedly connected to the bottom end of the movable rod 51, and the other end is fixedly connected to the inner wall of the air chamber 311. Spring 52 is used to drive movable rod 51 out of air chamber 311; one end of air chamber 311 is provided with air inlet 312 and the other end is provided with air outlet 313. Air outlet 313 is connected to airbag body 41. Air inlet 312 is provided with air inlet backflow preventer 53. Air inlet backflow preventer 53 is used to control the airflow in air inlet 312 to flow into air chamber 311. Air outlet 313 is provided with air outlet backflow preventer 54. Air outlet backflow preventer 54 is used to control the gas in air chamber 311 to flow into airbag body 41.

[0061] When an earthquake occurs, the lower support column 31 and the upper support column 33 slide relative to each other, thereby changing the position of the spherical liner 32 between the lower support column 31 and the upper support column 33. This causes the spherical liner 32 to compress the movable rod 51. After being compressed, the movable rod 51 compresses the gas in the air chamber 311. At this time, the air inlet check valve 53 blocks the air inlet 312, allowing the gas to be inflated towards the airbag body 41 through the air outlet 313.

[0062] When the spherical liner 32 moves away from the movable rod 51, the return spring 52 resets the movable rod 51, causing the end of the movable rod 51 to pass through the air chamber 311 again. At this time, the outflow check valve 54 blocks the air outlet 313, and the air chamber 311 draws in air to the outside through the air inlet 312.

[0063] Since earthquakes are generally short-lived, the main body 2 of the house will still shake after the earthquake. By repeatedly sliding the lower support column 31 and the upper support column 33, the movable rod 51 moves up and down continuously, thereby continuously filling the airbag 41 with gas, causing the airbag 41 to expand and lift the friction component 42, so that the friction component 42 abuts against the bottom of the main body 2 of the house.

[0064] In this embodiment, the intake backflow preventer 53 includes an intake backflow preventer plate 531 and an intake backflow preventer spring 532, and the exhaust backflow preventer 54 includes an exhaust backflow preventer plate 541 and an exhaust backflow preventer spring 542. In other embodiments, both the intake backflow preventer 53 and the exhaust backflow preventer 54 can be gas check valves.

[0065] The intake backflow preventer 531 is rotatably connected to the lower seat post 31, and the intake backflow preventer 531 can rotate toward the air chamber 311. The intake backflow preventer spring 532 is installed on the lower seat post 31. The intake backflow preventer spring 532 is used to control the intake backflow preventer 531 to abut against the lower seat post 31 to block the air inlet 312.

[0066] The outflow check plate 541 is rotatably connected to the lower seat post 31, and the outflow check plate 541 can rotate toward the direction away from the air chamber 311. The outflow check spring 542 is installed on the lower seat post 31 and is used to control the outflow check plate 541 to abut against the lower seat post 31 to block the air outlet 313.

[0067] By utilizing the cooperation of the intake check plate 531 and the intake check spring 532, when air enters the air chamber 311, the air chamber 311 is connected to the outside world. When air exits the air chamber 311, the intake check plate 531 blocks the air inlet 312, thus isolating the air chamber 311 from the outside world.

[0068] Simultaneously, by utilizing the cooperation of the outlet check plate 541 and the outlet check spring 542, when air is discharged from the air chamber 311, the air chamber 311 is connected to the air bag body 41. When air is introduced, the outlet check plate 541 blocks the outlet 313, isolating the air chamber 311 from the air bag body 41, thereby achieving the effect of continuously injecting air into the air bag body 41.

[0069] By using an inlet check valve 531 and an outlet check valve 541, one-way inflation of the air chamber 311 can be achieved, which greatly simplifies the structure of the inflation assembly 5.

[0070] The implementation principle of a prefabricated building seismic reinforcement structure according to an embodiment of this application is as follows: When a strong earthquake occurs, the foundation 1 achieves a seismic isolation effect through the sliding connection of the lower support column 31, the spherical liner 32, and the upper support column 33, greatly reducing the transmission of seismic waves to the main body 2 of the building. At this time, the lower support column 31, the spherical liner 32, and the upper support column 33 slide relative to each other. The spherical liner 32 continuously abuts against the movable rod 51, causing the movable rod 51 to continuously slide up and down, and continuously inflating the airbag 41 by the up and down sliding of the movable rod 51.

[0071] The seismic waves are short-lived. After the seismic waves pass, the foundation 1 quickly returns to stability, but the main body 2 of the building continues to shake. At this time, the lower support column 31, the spherical liner 32, and the upper support column 33 are still sliding against each other. This continues until the airbag 41 inflates until the rubber pad 421 abuts against the bottom of the main body 2, greatly increasing the friction between the foundation 1 and the main body 2. This improves the damping effect of the damping component 4, allowing the main body 2 to quickly return to stability, thus improving the building's seismic resistance.

[0072] This application also discloses a construction method for a prefabricated building seismic reinforcement structure.

[0073] Reference Figure 8 A construction method for a prefabricated building seismic reinforcement structure includes foundation preparation, installation of seismic isolation, installation of damping, and construction of the main structure.

[0074] Foundation 1 preparation, specifically: Excavate a foundation pit and place concrete hoses inside the pit to form foundation 1, ensuring that the surface of foundation 1 is flat and free of obstructions.

[0075] Vibration isolation installation, specifically: Install the lower support column 31 on the foundation 1.

[0076] The damping is installed specifically as follows: The damping component 4 is installed on the foundation 1, and the lower seat column 31 is connected to the airbag body 41 by the inflation component 5.

[0077] The main structure is as follows: Install the upper column 33 on the base plate of the main body 2, and install the spherical liner 32 on the lower column 31. Then install the lower column 31 on the upper column 33, so that the spherical liner 32 is located between the lower column 31 and the upper column 33. Then build the entire main body on the base plate of the main body 2.

[0078] 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 prefabricated building seismic reinforcement structure, characterized in that, include: Foundation (1); The main body of the house (2) is located above the foundation (1), and there is a gap between the main body of the house (2) and the foundation (1); A seismic isolation component (3) is installed between the foundation (1) and the main body of the building (2). The seismic isolation component (3) includes a lower support column (31), a spherical liner (32), and an upper support column (33). The lower support column (31) is installed on the foundation (1), and the upper support column (33) is installed on the main body of the building (2). The opposite sides of the upper support column (33) and the lower support column (31) are concave inward to form an arc shape. The spherical liner (32) is installed between the lower support column (31) and the upper support column (33). A damping assembly (4) is installed between the house body (2) and the foundation (1). The damping assembly (4) includes an airbag (41) and a friction element (42). An inflatable assembly (5) is connected at one end to the vibration isolation assembly (3) and at the other end to the damping assembly (4). The inflatable assembly (5) is used to inflate the airbag (41) by utilizing the movement of the vibration isolation assembly (3) so that one end of the damping assembly (4) abuts against the foundation (1) and the other end abuts against the main body of the house (2).

2. The prefabricated building seismic reinforcement structure according to claim 1, characterized in that: The airbag body (41) is provided with an air vent (411) and a pressure relief hole (412), and the pressure relief hole (412) is sealed with a sealing element (6).

3. The prefabricated building seismic reinforcement structure according to claim 2, characterized in that: The sealing component (6) includes a frame (61), an elastic element (62), and a sealing block (63). The frame (61) is fixedly connected to the opening of the pressure relief hole (412). One end of the elastic element (62) is fixedly connected to the frame (61), and the other end is fixedly connected to the sealing block (63) so that the sealing block (63) seals the pressure relief hole (412).

4. The prefabricated building seismic reinforcement structure according to claim 1, characterized in that: The airbag (41) is installed on the foundation (1), and the friction element (42) is installed on the side of the airbag (41) near the main body of the house (2).

5. The prefabricated building seismic reinforcement structure according to claim 4, characterized in that: A limiting rod (7) is fixedly connected to the foundation (1). There is a gap between the limiting rod (7) and the main body of the house (2). A limiting hole is opened on the friction member (42), and the limiting rod (7) passes through the limiting hole.

6. The prefabricated building seismic reinforcement structure according to claim 5, characterized in that: The friction element (42) includes a plurality of rubber pads (421) stacked along the limiting rod (7).

7. The prefabricated building seismic reinforcement structure according to claim 1, characterized in that: The inflation assembly (5) includes a movable rod (51) and a return spring (52). An air chamber (311) is formed inside the lower seat post (31). The movable rod (51) is vertically slidably connected within the air chamber (311). The upper end of the movable rod (51) extends out of the lower seat post (31), and the lower end of the movable rod (51) is located within the air chamber (311). The outer peripheral wall of the movable rod (51) abuts against the inner wall of the air chamber (311). One end of the return spring (52) is fixedly connected to the bottom end of the movable rod (51), and the other end is fixedly connected to the inner wall of the air chamber (311). 52) Used to drive the movable rod (51) through the air chamber (311); one end of the air chamber (311) is provided with an air inlet (312) and the other end is provided with an air outlet (313). The air outlet (313) is connected to the airbag body (41). The air inlet (312) is provided with an air inlet stop (53). The air inlet stop (53) is used to control the airflow of the air inlet (312) to flow into the air chamber (311). The air outlet (313) is provided with an air outlet stop (54). The air outlet stop (54) is used to control the gas in the air chamber (311) to flow into the airbag body (41).

8. The prefabricated building seismic reinforcement structure according to claim 7, characterized in that: The intake backflow preventer (53) includes an intake backflow preventer plate (531) and an intake backflow preventer spring (532). The intake backflow preventer plate (531) is rotatably connected to the lower seat post (31), and the intake backflow preventer plate (531) can rotate toward the air chamber (311). The intake backflow preventer spring (532) is mounted on the lower seat post (31), and the intake backflow preventer spring (532) is used to control the intake backflow preventer plate (531) to abut against the lower seat post (31) to block the air inlet (312). The outflow check valve (54) includes an outflow check plate (541) and an outflow check spring (542). The outflow check plate (541) is rotatably connected to the lower seat post (31), and the outflow check plate (541) can rotate toward the air cavity (311). The outflow check spring (542) is mounted on the lower seat post (31) and is used to control the outflow check plate (541) to abut against the lower seat post (31) to block the air outlet (313).

9. The prefabricated building seismic reinforcement structure according to claim 1, characterized in that: Multiple inflatable components (5) are provided, and the multiple inflatable components (5) are evenly distributed around the axis of the lower seat post (31).

10. A construction method for a prefabricated building seismic strengthening structure, applied to the prefabricated building seismic strengthening structure described in any one of claims 1-9, characterized in that: Foundation preparation: excavate foundation pit, pour concrete into foundation pit to form foundation (1), and ensure that the surface of foundation (1) is flat and free of obstacles; Install the seismic isolation and install the lower support column (31) on the foundation (1); Install damping, install the damping assembly (4) on the foundation (1), and use the inflation assembly (5) to connect the lower seat column (31) to the airbag body (41); The main structure is constructed by installing the upper column (33) on the base plate of the main body (2) and installing the spherical liner (32) on the lower column (31). The lower column (31) is then installed on the upper column (33), with the spherical liner (32) positioned between the lower column (31) and the upper column (33). The entire main structure is then constructed on the base plate of the main body (2).

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