An assembled anti-seismic wall system device and a mounting method thereof

Abstract

The application provides an assembled anti-seismic wall system device and a mounting method thereof, and belongs to the technical field of assembled wallboards. The technical scheme comprises a sandwich thermal insulation wallboard module, the sandwich thermal insulation wallboard module is embedded in a steel frame, the steel frame comprises an I-shaped cross-section steel frame column and an I-shaped cross-section steel frame beam; the sandwich thermal insulation wallboard module comprises a plurality of wallboard units, a damping and water-proof material is arranged between two adjacent sandwich thermal insulation wallboard units; the sandwich thermal insulation wallboard module is connected with the I-shaped cross-section steel frame beam and the I-shaped cross-section steel frame column respectively, a disc spring self-resetting device is arranged between the sandwich thermal insulation wallboard module and the I-shaped cross-section steel frame column, and the sandwich thermal insulation wallboard module and the I-shaped cross-section steel frame beam are connected through a energy-consuming bolt joint. The self-resetting device and the energy-consuming device are combined, which is an important measure to improve the recoverable function of the structure.

Description

Technical Field

[0001] This invention provides a prefabricated earthquake-resistant wall system device and its installation method, belonging to the field of prefabricated wall panel technology. Background Technology

[0002] Prefabricated buildings feature short construction cycles, minimal environmental impact, and low labor costs, making them well-suited to the demands of modernizing the construction industry and upgrading building structures. Among these, prefabricated sandwich insulated wall panels are one of the most widely used structural systems in the prefabricated construction field. However, their seismic performance and durability still face challenges. Therefore, improving the seismic performance and durability of prefabricated insulated wall panels is an urgent issue to be addressed.

[0003] Therefore, considering the "strong structure, weak connection" characteristic of prefabricated structures, this invention focuses on creating an energy-dissipating mechanism at the connection nodes of prefabricated sandwich insulated wall panels, enabling the structure to recover its function. This represents a new direction in the research of earthquake-resistant structures. Thus, the concept of recoverable functional simulation structure design places higher demands on the seismic performance of structures. This disc spring self-resetting device, combined with the damping and energy-dissipating nodes, reduces wall panel damage under seismic loads while automatically restoring the structure after load application, significantly minimizing structural damage. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a prefabricated earthquake-resistant wall system device and installation method, which improves the earthquake resistance and durability of prefabricated insulated wall panels.

[0005] This was achieved through the following measures: A prefabricated earthquake-resistant wall system device, characterized in that it includes I-shaped steel frame beams, I-shaped steel frame columns, and sandwich insulated wall panel modules arranged on the I-shaped steel frame beams; The sandwich insulated wall panel module includes, from the outside to the inside, a decorative outer panel, a polystyrene insulation layer, and an inner leaf panel. Both the inner leaf panel and the decorative outer panel are equipped with steel mesh. The sandwich insulated wall panel module is tightly connected to the I-section steel frame beam through energy-dissipating bolt nodes; the sandwich insulated wall panel module is connected to the I-section steel frame column through a disc spring self-resetting device. Preferably, the energy-dissipating bolt node includes an S-shaped sliding plate, an L-shaped fixing plate, an FRP bolt, an FRP limiting plate, a friction plate, and a high-strength bolt A; The FRP limiting plate is located outside the steel mesh inside the decorative outer panel, and the FRP limiting plate has a second through hole. The FRP bolt passes through the inner leaf plate and the polystyrene insulation layer and is connected to the FRP limiting plate through the second through hole. The FRP bolt is threaded along its entire length. The upper part of the S-shaped sliding plate has a third through hole, and the other end of the FRP bolt passes through the third through hole and is fixedly connected to the fastening nut A. The lower part of the S-shaped sliding plate is provided with an elongated sliding bolt hole. The upper part of the L-shaped fixing plate is provided with an elongated sliding bolt hole with the same size as the elongated sliding bolt hole at the lower part of the S-shaped sliding plate. The two elongated sliding bolt holes are completely overlapped during installation and fixed by high-strength bolt A. The lower part of the L-shaped fixing plate is welded to the I-shaped steel frame beam. The sandwich insulated wall panel module includes, from the outside to the inside, a decorative outer panel, a polystyrene insulation layer, and an inner leaf panel. Both the inner leaf panel and the decorative outer panel are equipped with steel mesh, and a normal preload is provided by high-strength bolts A. Preferably, the disc spring self-resetting device includes a tubular disc spring sleeve, several disc spring plates, a movable disc spring central shaft, and an FRP groove-shaped fixing component, wherein the FRP groove-shaped fixing component has a first through hole. The tubular disc spring sleeve includes a shock-absorbing chamber and a self-resetting chamber. The shock-absorbing chamber is filled with aluminum foam, and the self-resetting chamber is the disc spring placement area. A partition is provided between the shock-absorbing chamber and the self-resetting chamber. The disc springs are connected in series via a movable disc spring central shaft, and the two ends of the movable disc spring central shaft are provided with blocking blocks; The movable disc spring central shaft is threadedly connected to the first through hole; The FRP groove-shaped fastener is tightly connected to the steel mesh in the inner leaf plate and the decorative outer plate by hooks. Preferably, the FRP groove-shaped fixing component in the disc spring self-resetting device is connected to the steel mesh in the sandwich insulation wall panel module through a hook, and one end of the movable disc spring central shaft passes through the first through hole and is fixed by the pre-tightening nut B; The diameter of the blocking block is larger than the reserved hole in the tubular disc spring sleeve but smaller than the central hole of the disc spring; the disc springs are arranged in a paired combination. Preferably, the sandwich insulation wall panel module comprises a plurality of sandwich insulation wall panel units, and shock-absorbing and water-proofing material is provided between two adjacent sandwich insulation wall panel units. The shock-absorbing and water-proofing material is composed of, from the outside to the inside, a gypsum mortar layer, a rubber layer, a waterproof adhesive layer, a bonding mortar layer, a fireproof rock wool layer, a rubber layer, a gypsum mortar layer, a putty layer, and a latex paint layer. The sandwich insulated wall panel module is provided with shock-absorbing and water-proof material between it and the I-shaped steel frame beam and the I-shaped steel frame column; The feature is that, when connecting the sandwich insulated wall panel module to the I-shaped steel frame beam, the L-shaped fixing plate is first welded to the designated position of the I-shaped steel frame beam, then aligned with the S-shaped sliding plate, and a friction plate is placed between the L-shaped fixing plate and the S-shaped sliding plate, and a normal preload is provided by the high-strength bolt A. When connecting the sandwich insulated wall panel module to the I-shaped steel frame column, simply weld the tubular disc spring sleeve to the I-shaped steel frame column. When a load is applied, the energy-dissipating bolt nodes of the sandwich insulated wall panel module slip at the S-shaped sliding plate and the L-shaped fixed plate. Due to the presence of the friction plate, the seismic energy is dissipated. At the same time, the disc spring self-resetting device is compressed by the external load. The disc spring in the self-resetting chamber is compressed, and the movable disc spring central axis dissipates the seismic energy by squeezing the foam aluminum in the damping chamber. After the load is applied, the external force on the disc spring in the self-resetting chamber decreases, and the disc spring returns to its original position, pushing the sandwich insulated wall panel module back to its initial position, thus achieving the effect of seismic resistance and self-resetting. One or more technical solutions of the present invention have the following beneficial effects: 1. This invention proposes a disc spring self-resetting device. When the disc spring is under tension or compression, it is compressed. After the load is removed, the disc spring self-resetting device restores the component to its original position, which greatly improves the secondary seismic bearing capacity of the component and thus improves the durability of the structure. 2. The disc spring self-resetting device proposed in this invention resets the components, improving the comfort of the building after an earthquake. 3. This invention uses a disc spring self-resetting device in combination with a shock-absorbing and energy-dissipating node. When subjected to horizontal loads, the shock-absorbing and energy-dissipating connector dissipates energy through frictional sliding, thereby fundamentally reducing the damage to the structure caused by seismic loads. 4. This invention uses FRP material in many places, avoiding the use of metal parts that run through the entire wall panel, which greatly reduces the harm caused by the hidden thermal bridge effect of the wall panel and improves the service life and comfort of the structure. 5 The prefabricated anti-seismic wall system proposed in this invention can be adapted to different thicknesses of the insulation layer required in different places by adjusting the bolts. Different insulation layer thicknesses can also be selected according to the specific use conditions of the building, or building measures such as adding an air barrier can be added to improve the applicability of the self-resetting prefabricated pile system. 6 The prefabricated earthquake-resistant wall system proposed in this invention can achieve standardized production, which can greatly shorten the construction period and reduce the investment in construction costs, while also helping to reduce environmental pollution caused by on-site construction. 7. The prefabricated earthquake-resistant wall system proposed in this invention is simple to construct and easy to operate; Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the wall structure after the installation of the present invention. Figure 2 Detailed drawing of the disc spring self-resetting device of the present invention Figure 3 Detailed drawing of the energy-dissipating bolt node of the present invention Figure 4 This is a side view of the energy-dissipating bolt node and wall panel of the present invention. Figure 5 This is a schematic diagram of the tubular disc spring sleeve of the present invention. Figure 6 This is a schematic diagram of the FRP groove-type fastener of the present invention. Figure 7 This is a schematic diagram of the movable disc spring central shaft of the present invention. Figure 8 This is a schematic diagram of a single disc spring of the present invention. Figure 9 This is a schematic diagram of the S-shaped sliding plate of the present invention. Figure 10 This is a schematic diagram of the L-shaped fixing plate of the present invention. Figure 11 This is a schematic diagram of the FRP limiting plate of the present invention. Figure 12 This is a schematic diagram of the FRP bolt of the present invention. In the diagram: 1. I-beam steel frame beam; 2. I-beam steel frame column; 3. Decorative outer panel; 4. Polystyrene insulation layer; 5. Inner leaf plate; 6. Disc spring self-resetting device; 61. Tubular disc spring sleeve; 62. Disc spring; 63. Movable disc spring central shaft; 631. Blocking block; 64. FRP groove-type fastener; 611. Vibration damping chamber; 612. Self-resetting chamber; 641. First through hole; 7. Energy dissipation bolt node; 71. S-shaped sliding plate; 72. L-shaped fixing plate; 73. FRP bolt; 74. FRP limiting plate; 75. High-strength bolt A; 76. Fastening nut A; 77. Friction plate; 711. Third through hole; 741. Second through hole; Detailed Implementation

[0007] In a typical embodiment of the present invention, an installation method for a prefabricated earthquake-resistant wall system is provided, comprising: Installation method of disc spring self-resetting device: First, pour the decorative outer panel. During pouring, place the steel mesh and connect the hook of the FRP channel fastener to the steel mesh. Then fix the movable disc spring central shaft, disc spring, and tubular disc spring sleeve. Before installation, pour aluminum foam into the shock absorption chamber of the tubular disc spring sleeve. Then pour the polystyrene insulation layer. Finally, pour the inner leaf plate and place the steel mesh. Energy-dissipating bolt node installation method: First, pour the decorative outer panel. Before placing the steel mesh, place the FRP limiting plate in the designated position and screw in the FRP bolt. Then, pour the polystyrene insulation layer and inner leaf plate. When installing the sandwich insulation wall panel module, first connect the S-shaped sliding plate to the FRP bolt and adjust the angle. Then, fix the S-shaped sliding plate by tightening nut A. Furthermore, when connecting the sandwich insulated wall panel module to the I-shaped steel frame beam, first weld the L-shaped fixing plate to the designated position of the I-shaped steel frame beam, then align it with the S-shaped sliding plate, and place a friction plate between the L-shaped fixing plate and the S-shaped sliding plate, and provide normal preload through high-strength bolt A; Furthermore, when connecting the sandwich insulated wall panel module to the I-shaped steel frame column, the tubular disc spring sleeve can be welded to the I-shaped steel frame column.

Claims

1. A prefabricated earthquake-resistant wall system device, characterized in that, It includes I-shaped steel frame beams, I-shaped steel frame columns, and sandwich insulated wall panel modules arranged on the I-shaped steel frame beams; The sandwich insulated wall panel module includes, from the outside to the inside, a decorative outer panel, a polystyrene insulation layer, and an inner leaf panel. Both the inner leaf panel and the decorative outer panel are equipped with steel mesh. The sandwich insulated wall panel module is tightly connected to the I-section steel frame beam through energy-dissipating bolt nodes; the sandwich insulated wall panel module is connected to the I-section steel frame column through a disc spring self-resetting device. The energy-dissipating bolt node includes an S-shaped sliding plate, an L-shaped fixing plate, an FRP bolt, an FRP limiting plate, a friction plate, and a high-strength bolt A; The FRP limiting plate is located outside the steel mesh inside the decorative outer panel, and the FRP limiting plate has a second through hole. The FRP bolt passes through the inner leaf plate and the polystyrene insulation layer and is connected to the FRP limiting plate through the second through hole. The FRP bolt is threaded along its entire length. The upper part of the S-shaped sliding plate has a third through hole, and the other end of the FRP bolt passes through the third through hole and is fixedly connected to the fastening nut A. The lower part of the S-shaped sliding plate is provided with an elongated sliding bolt hole. The upper part of the L-shaped fixing plate is provided with an elongated sliding bolt hole with the same size as the elongated sliding bolt hole at the lower part of the S-shaped sliding plate. The two elongated sliding bolt holes are completely overlapped during installation and fixed by high-strength bolt A. The lower part of the L-shaped fixing plate is welded to the I-shaped steel frame beam. The contact surface between the S-shaped sliding plate and the L-shaped fixed plate is provided with friction plates, and a normal preload is provided by a high-strength bolt A.

2. The prefabricated earthquake-resistant wall system device according to claim 1, characterized in that, The disc spring self-resetting device includes a tubular disc spring sleeve, several disc spring plates, a movable disc spring central shaft, and an FRP groove-type fixing component, wherein the FRP groove-type fixing component has a first through hole. The tubular disc spring sleeve includes a shock-absorbing chamber and a self-resetting chamber. The shock-absorbing chamber is filled with aluminum foam, and the self-resetting chamber is the disc spring placement area. A partition is provided between the shock-absorbing chamber and the self-resetting chamber. The disc springs are connected in series via a movable disc spring central shaft, and the two ends of the movable disc spring central shaft are provided with blocking blocks; The movable disc spring central shaft is threadedly connected to the first through hole; The FRP groove-shaped fastener is tightly connected to the steel mesh in the inner leaf plate and the decorative outer plate by means of hooks.

3. The prefabricated earthquake-resistant wall system device according to claim 2, characterized in that, In the disc spring self-resetting device, the FRP groove-shaped fastener is connected to the steel mesh in the sandwich insulation wall panel module by a hook, and one end of the movable disc spring central shaft passes through the first through hole and is fixed by the pre-tightening nut B. The diameter of the blocking block is larger than the reserved hole in the tubular disc spring sleeve but smaller than the hole in the middle of the disc spring; the disc springs are arranged in a paired combination.

4. The prefabricated earthquake-resistant wall system device according to claim 1, characterized in that, The sandwich insulation wall panel module includes several sandwich insulation wall panel units. A shock-absorbing and water-proof material is provided between two adjacent sandwich insulation wall panel units. The shock-absorbing and water-proof material consists of a gypsum mortar layer, a rubber layer, a waterproof adhesive layer, an adhesive mortar layer, a fireproof rock wool layer, a rubber layer, a gypsum mortar layer, a putty layer, and a latex paint layer from the outside to the inside. The sandwich insulated wall panel module is provided with shock-absorbing and water-proof material between it and the I-shaped steel frame beam and the I-shaped steel frame column.

5. An installation method for a prefabricated seismic-resistant wall system device, implemented using the prefabricated seismic-resistant wall system device as described in any one of claims 1-4, characterized in that, include: Installation method of disc spring self-resetting device: First, pour the decorative outer panel. During pouring, place the steel mesh and connect the hook of the FRP channel fastener to the steel mesh. Then fix the movable disc spring central shaft, disc spring, and tubular disc spring sleeve. Before installation, pour aluminum foam into the shock absorption chamber of the tubular disc spring sleeve. Then pour the polystyrene insulation layer. Finally, pour the inner leaf plate and place the steel mesh. Energy-dissipating bolt node installation method: First, pour the decorative outer panel. Before placing the steel mesh, place the FRP limiting plate in the designated position and screw in the FRP bolt. Then, pour the polystyrene insulation layer and inner leaf plate. When installing the sandwich insulation wall panel module, first connect the S-shaped sliding plate to the FRP bolt and adjust the angle. Then, fix the S-shaped sliding plate by tightening nut A.

6. The installation method of the prefabricated earthquake-resistant wall system device as described in claim 5, characterized in that, When connecting the sandwich insulated wall panel module to the I-shaped steel frame beam, first weld the L-shaped fixing plate to the designated position of the I-shaped steel frame beam, then align it with the S-shaped sliding plate, and place a friction plate between the L-shaped fixing plate and the S-shaped sliding plate. Provide normal preload through high-strength bolt A. When connecting the sandwich insulated wall panel module to the I-shaped steel frame column, simply weld the tubular disc spring sleeve to the I-shaped steel frame column. When the load is applied, the energy-dissipating bolt nodes of the sandwich insulation wall panel module slide at the S-shaped sliding plate and the L-shaped fixed plate. Due to the presence of the friction plate, the seismic energy is consumed. At the same time, the disc spring self-resetting device is compressed by the external load. The disc spring in the self-resetting chamber is compressed, and the movable disc spring central axis consumes the seismic energy by squeezing the foam aluminum in the damping chamber. After the load is applied, the external force on the disc spring in the self-resetting chamber decreases, the disc spring returns to its original position, and pushes the sandwich insulation wall panel module back to its initial position, thus achieving the effect of earthquake resistance and self-resetting.

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