High-toughness assembly type prefabricated energy dissipation shear wall and construction method thereof

Abstract

The invention discloses a high-toughness assembly type prefabricated energy dissipation shear wall and a construction method thereof. The high-toughness assembly type prefabricated energy dissipation shear wall comprises steel pipe columns, connecting steel plates, dampers and connecting wall plates. The axes of the multiple steel pipe columns are arranged in parallel; an assembly gap is formed between two opposite wall surfaces of two adjacent steel pipe columns; the connecting steel plates are welded and fixed to the two opposite outer walls of every two adjacent steel pipe columns. The multiple dampers are arranged in the assembling gap at intervals in the height direction of the steel pipe column; the two ends of the dampers are in threaded connection with the two connecting steel plates through screws correspondingly. The connecting wallboards are formed by pouring lightweight concrete or foam concrete; the lightweight concrete or the foam concrete is poured in the assembly gap and wraps the damper. A traditional wallboard structure is replaced by the steel pipe columns, connection between the dampers and the steel pipe columns is achieved through the screws and the connecting steel plates, and easy assembly of the shear wall is achieved; the dampers consume energy brought by earthquakes, and the anti-seismic performance of the shear wall is comprehensively improved.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and more specifically to a high-toughness prefabricated energy-dissipating shear wall and its construction method. Background Technology

[0002] As a key lateral force-resisting component in building structures, the seismic performance and industrialized construction level of shear walls are core issues in the engineering field. Traditional cast-in-place reinforced concrete shear walls suffer from low construction efficiency, limited ductility and energy dissipation capacity, and are prone to brittle failure under strong earthquakes, making repair difficult. With the development of building industrialization and seismic isolation technologies, the research and development of new shear wall systems that combine high load-bearing capacity, high ductility, high energy dissipation efficiency, and ease of assembly has become an urgent need.

[0003] Domestic and international research is mainly advancing in two directions: improving the ductility of structural members and adding energy dissipation devices. Steel-concrete composite structures, due to their excellent restraint effect and ductility, are widely used to improve the performance of shear wall frames or the overall structure. Meanwhile, metal dampers, especially graded yield dampers or pre-gap dampers, can concentrate and dissipate seismic energy through controlled plastic deformation, protecting the main structure and becoming an effective means of energy dissipation and vibration reduction design. Current research is focusing on combining these two approaches to form prefabricated energy dissipation shear wall systems. For example, replaceable steel damping elements can be installed at the joints of prefabricated walls to achieve damage control. However, existing technologies still face challenges in areas such as damper connection reliability, exposed protection, and the synergistic effect of joint filling materials and dampers.

[0004] Therefore, how to provide a prefabricated energy dissipation shear wall with good seismic performance and high construction efficiency, and its construction method, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a high-toughness prefabricated energy-dissipating shear wall and its construction method. It utilizes steel pipe columns instead of traditional wall panel structures, and connects the dampers to the steel pipe columns via bolts and connecting steel plates, achieving easy assembly of the shear wall. Under seismic loading, the shear wall undergoes longitudinal shear deformation, resulting in a certain displacement. At this time, the dampers connected between the steel pipe columns dissipate the energy brought by the earthquake, enabling them to jointly resist damage and destruction under seismic loading, thus comprehensively improving the seismic performance of the shear wall.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-toughness prefabricated energy-dissipating shear wall includes: The steel pipe columns are multiple, and the axes of the multiple steel pipe columns are arranged in parallel; there is an assembly gap between the two opposing wall surfaces of two adjacent steel pipe columns. A connecting steel plate is welded and fixed to the two opposite outer walls of two adjacent steel pipe columns; A plurality of dampers are arranged at intervals along the height direction of the steel pipe column within the assembly gap; the two ends of the plurality of dampers are respectively threaded to the two connecting steel plates by screws. A connecting wall panel is formed by casting lightweight concrete or foamed concrete; the lightweight concrete or foamed concrete is cast into the assembly gap and wraps around the damper.

[0008] The beneficial effects of the technical solution of this invention are that it breaks down the traditional shear wall panel structure into multiple steel pipe columns, and connects the dampers between two adjacent steel pipe columns by connecting steel plates and screws, and wraps the dampers with connecting wall panels to form an integrally stable shear wall. The prefabricated structure facilitates the construction of the shear wall, and at the same time, the dampers are used to consume seismic energy to improve the seismic performance of the shear wall.

[0009] Preferably, the damper is a graded yielding type metal damper, which includes an inner ring plate, an outer ring plate, and a pad. Both the inner and outer ring plates include vertically arranged arc-shaped segments and a straight segment connecting the two arc-shaped segments. The inner ring plate is coaxially arranged within the cavity of the outer ring plate. The pad is embedded between the two opposing walls of the straight segments of the inner and outer ring plates. The threaded end of the screw passes sequentially through the straight segments of the inner ring plate, the pad, and the straight segments of the outer ring plate, and is fastened to the connecting steel plate with a nut. The damper can be a graded yielding type metal damper, with segmented inner and outer ring plates. Graded gaps are formed between the arc-shaped segments. The inner and outer ring plates are connected into an integral structure by the pad and the screw. The inner and outer ring plates can deform or be disturbed sequentially under different level seismic actions, achieving controllable and efficient energy dissipation and protecting the main structure of the shear wall.

[0010] Preferably, there are multiple screws embedded in the connecting steel plate; the inner ring plate, the washer plate, and the outer ring plate have bolt holes that are interconnected and correspond one-to-one with the screws. By setting multiple screws, the graded yielding metal damper can be stably installed on the connecting steel plate, while ensuring a firm connection between the inner ring plate and the outer ring plate.

[0011] Preferably, the damper is a pre-gap damper, which includes an upper base plate, a lower base plate, a stop block, a first energy-dissipating metal plate, and a second energy-dissipating metal plate. The surface of the lower base plate is arranged opposite to the surface of the upper base plate and is fastened to the connecting steel plate by screws. One end face of the stop block is fixed to the side of the upper base plate facing the lower base plate. The end face of the stop block away from the upper base plate has multiple grooves. There are two first energy-dissipating metal plates located at both ends of the pre-gap damper. The two ends of the two first energy-dissipating metal plates are respectively fixed to the two opposite surfaces of the upper base plate and the lower base plate. There are multiple second energy-dissipating metal plates, one end of which is fixed to the side of the lower base plate facing the upper base plate, and the other end is inserted into the multiple grooves. The damper can also be a pre-gap damper, where the upper base plate and the lower base plate are connected by the first energy-dissipating metal plate. Under the action of seismic force, the second energy-dissipating metal plate can move and deform within the grooves to dissipate seismic energy.

[0012] Preferably, the upper substrate and the lower substrate have the same length, and the length of the stop block is less than the length of the upper substrate. Multiple grooves are evenly distributed along the length direction of the stop block. The groove widths decrease sequentially from the center of the stop block towards both sides, and the corresponding thicknesses of the second energy-dissipating metal plates decrease sequentially. Energy levels are defined as small, medium, large, and mega-earthquakes. By gradually varying the groove widths and the thickness of the second energy-dissipating metal plates, graded energy dissipation can be achieved.

[0013] Preferably, there is a gap between one end of the second energy-dissipating metal plate and the inner wall of the groove. One end of the second energy-dissipating metal plate is inserted into the groove and there is a gap between it and the inner wall of the groove. The gap serves as a movement space for the second energy-dissipating metal plate under seismic force. The second energy-dissipating plate contacts and yields to the inner wall of the groove to dissipate seismic energy.

[0014] Preferably, both the first energy-dissipating metal plate and the second energy-dissipating metal plate are X-shaped plates. X-shaped metal plates have high yield strength and can deform under seismic forces.

[0015] Preferably, there are multiple screws embedded in the connecting steel plate; bolt holes corresponding to the screws are formed at both ends of the upper or lower base plate. Multiple screws ensure a stable connection between the pre-reserved gap damper and the connecting steel plate, while also ensuring a firm connection between the upper and lower base plates.

[0016] Preferably, the steel pipe column comprises a square steel pipe and plain concrete poured into the inner cavity of the square steel pipe. The directional steel pipe meets the structural characteristics requirements of the shear wall panel, and the structural strength of the shear wall can be guaranteed by pouring plain concrete into the inner cavity of the square steel pipe.

[0017] Preferably, the steel pipe column is anchored with a square steel reinforcement cage. The square steel reinforcement cage improves the strength and stiffness of the steel pipe column, ensuring the overall stability of the building structure.

[0018] This invention also provides a construction method for a high-toughness prefabricated energy-dissipating shear wall, comprising the following steps: S1. Component prefabrication: Steel pipe columns and dampers are prefabricated in the factory, and connecting steel plates are welded to the outer wall of the steel pipe columns; at the same time, bolts are embedded in the pre-set positions of the connecting steel plates; S2. On-site assembly: Hoist the steel pipe columns into place, and arrange the connecting steel plates on the two adjacent steel pipe columns opposite each other; use the connecting steel plates and bolts to horizontally install the damper between the two adjacent steel pipe columns; S3. Casting connecting wall panels: Set up formwork around the outer perimeter of two adjacent steel pipe columns where dampers have been installed, and pour lightweight foam concrete into the formwork to form an integral connecting wall panel that wraps around the dampers. S4. Curing and Completion: After the connected wall panels reach the design strength, the formwork is removed, and the on-site assembly and construction of the entire shear wall unit is completed.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a high-toughness prefabricated energy-dissipating shear wall and its construction method. Through innovative component combination and structural design, it achieves a synergistic improvement in seismic performance and construction efficiency, providing a high-performance solution for the structural design of high-rise buildings and high-intensity seismic zones, and has the following beneficial effects: 1. High ductility and large deformation capacity: Steel pipe columns are used to replace traditional shear walls, and their superior plastic deformation capacity provides sufficient actuation stroke for the dampers, significantly improving the overall ductility of the structure.

[0020] 2. Graded and efficient energy dissipation: The built-in dampers can be activated sequentially under different levels of seismic action and undergo movement deformation or disturbance deformation, so as to achieve controllable and efficient energy dissipation and protect the main structure.

[0021] 3. Durability and maintainability: The connecting wall panels provide permanent environmental protection and fire protection for key energy-consuming components (dampers), improving the long-term service performance of the shear wall structure.

[0022] 4. Convenient industrialized construction: All core components can be prefabricated in the factory and quickly assembled on site through standardized screw connections and local pouring, resulting in high construction quality and short cycle. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A sectional view of a shear wall provided for this invention; Figure 2 A schematic diagram of the graded yielding type metal damper structure provided by the present invention; Figure 3 This is a cross-sectional view of the reserved gap damper provided by the present invention; Figure 4 The front view of the energy-dissipating metal plate provided by the present invention.

[0025] Among them, 1-steel pipe column; 2-connecting steel plate; 3-damper; 31-inner ring plate; 32-outer ring plate; 33-pad plate; 34-upper base plate; 35-lower base plate; 36-stop block; 37-first energy dissipation metal plate; 38-second energy dissipation metal plate; 4-screw; 5-connecting wall panel. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Traditional shear walls are either cast-in-place or prefabricated as a whole, resulting in long construction cycles and poor seismic performance. Therefore, a shear wall structure with excellent seismic performance and fast construction speed is needed. This invention uses factory-prefabricated steel pipe columns as the main vertical load-bearing and lateral force-resisting framework. At the horizontal connection between two adjacent steel pipe columns, a graded yielding type metal damper or a pre-reserved gap damper is built-in, and a connecting wall panel encasing the damper is formed by on-site casting of lightweight concrete or foamed concrete during shear wall installation. This design achieves multiple optimizations: the steel pipe columns provide greater deformation capacity, allowing the damper to fully realize its energy dissipation potential; the damper achieves graded energy dissipation under multi-level earthquakes; the lightweight concrete connecting wall panel protects the damper from environmental erosion while its lightweight nature reduces added mass without affecting the damper's load-bearing capacity; the overall structure facilitates industrial prefabrication and rapid on-site assembly, significantly improving construction efficiency and quality control. The shear wall in this embodiment is a system solution that integrates the excellent ductility of steel-concrete composite, the high energy efficiency of metal dampers, and the rapid construction advantages of prefabricated buildings. It optimizes connection reliability, component protection, and collaborative performance, and has good technological advancement and engineering application prospects.

[0028] Example 1 See appendix Figure 1 To be continued Figure 3 According to this embodiment, a high-toughness prefabricated energy-dissipating shear wall includes steel pipe columns 1, connecting steel plates 2, dampers 3, and connecting wall panels 5. Multiple steel pipe columns 1 are arranged with their axes parallel. An assembly gap exists between the two opposite walls of two adjacent steel pipe columns 1. Each steel pipe column 1 is a square steel-concrete column composed of square steel pipes and plain concrete poured into the inner cavity of the square steel pipes. Two connecting steel plates 2 are welded and fixed to the two opposite outer walls of two adjacent steel pipe columns 1. Multiple dampers 3 are arranged at intervals along the height direction of the steel pipe columns 1 within the assembly gap. The two ends of each damper 3 are threadedly connected to the two connecting steel plates 2 via screws 4. The damper 3 utilizes the... The damper 3 effectively dissipates the vibration energy transmitted to the connection of the steel pipe column 1. Since the traditional shear wall is replaced with a square steel pipe concrete column, the allowable displacement between the columns is greater, which allows the damper 3 to dissipate more energy, further enhancing its overall damping capacity and the ductility of the entire wall. The connecting wall plate 5 is made of lightweight concrete or foamed concrete. The lightweight concrete or foamed concrete is poured into the assembly gap and wraps the damper 3. The damper 3 is set in the poured connecting wall plate 5. The connecting wall plate 5 can protect the damper 3 to a certain extent. It is made of lightweight concrete material, which can reduce the added mass of the shear wall without affecting the stress performance of the damper 3.

[0029] In this embodiment, the damper 3 is a graded yielding metal damper, which includes an inner ring plate 31, an outer ring plate 32, and a pad 33. Both the inner ring plate 31 and the outer ring plate 32 include arc-shaped segments arranged vertically and straight segments connecting the two arc-shaped segments. The arc-shaped segments have a certain yielding performance. The inner ring plate 31 is coaxially arranged in the inner cavity of the outer ring plate 32. The pad 33 is embedded between the two opposing walls of the straight segments of the inner ring plate 31 and the outer ring plate 32. The threaded end of the screw 4 passes through the straight segments of the inner ring plate 31, the pad 33, and the straight segments of the outer ring plate 32 in sequence and is fastened to the connecting steel plate 2 with a nut. In addition to ensuring sufficient graded yielding gap between the inner ring plate 31 and the outer ring plate 32, the pad 33 can also connect the inner ring plate 31, the outer ring plate 32, and the connecting steel plate 2 into a reliable overall connection structure through the screw 4.

[0030] To further optimize the above technical solution and ensure the reliability of the connection, there are multiple screws 4 and they are pre-embedded in the connecting steel plate 2; bolt holes that are interconnected and correspond one-to-one with the screws 4 are opened on the inner ring plate 31, the pad plate 33 and the outer ring plate 32.

[0031] To further optimize the above technical solution and improve the overall stiffness and structural strength of the shear wall, a square steel reinforcement cage is installed inside the square steel pipe, and plain concrete is poured into the inner cavity of the square steel pipe and wraps the square steel reinforcement cage.

[0032] This embodiment also provides a construction method for a high-toughness prefabricated energy-dissipating shear wall, including the following steps: S1. Component prefabrication: Steel pipe column 1 and damper 3 are prefabricated in the factory, and connecting steel plate 2 is welded to the outer wall of steel pipe column 1; at the same time, bolt 4 is embedded in the preset position of connecting steel plate 2. S2. On-site assembly: hoist the steel pipe column 1 into place, and arrange the connecting steel plates 2 on the two adjacent steel pipe columns 1 in a relatively opposite manner; use the connecting steel plates 2 and the screws 4 to horizontally install the graded yielding metal damper between the two adjacent steel pipe columns 1. S3. Casting connecting wall panel 5: Set up formwork around the outer perimeter of the two adjacent steel pipe columns 1 where the graded yielding metal damper has been installed, and pour lightweight foam concrete into the formwork to form an integral connecting wall panel 5 that wraps the graded yielding metal damper. S4. Curing and Completion: After the connected wall panel 5 reaches the design strength, the formwork is removed, and the on-site assembly and construction of the entire shear wall unit is completed.

[0033] Example 2 See appendix Figure 4According to this embodiment, a high-toughness prefabricated energy-dissipating shear wall includes steel pipe columns 1, connecting steel plates 2, dampers 3, and connecting wall panels 5. Multiple steel pipe columns 1 are arranged parallel and spaced apart. An assembly gap is formed between adjacent steel pipe columns 1. Each steel pipe column 1 is a square steel-concrete column composed of square steel pipes and plain concrete poured into the inner cavity of the square steel pipes. Two connecting steel plates 2 are welded and fixed to the opposite outer walls of two adjacent steel pipe columns 1. Multiple dampers 3 are arranged spaced along the height direction of the steel pipe columns 1 within the assembly gap. The two ends of the multiple dampers 3 are threadedly connected to the two connecting steel plates 2 by screws 4. The dampers 3... The vibration energy transmitted to the connection of the steel pipe column 1 is effectively dissipated. Since the traditional shear wall is replaced with a square steel pipe concrete column, the allowable displacement between the columns is greater, which allows the damper 3 to dissipate more energy, further enhancing its overall damping capacity and the ductility of the entire wall. The connecting wall plate 5 is made of lightweight concrete or foamed concrete. The lightweight concrete or foamed concrete is poured into the assembly gap and wraps the damper 3. The damper 3 is set in the poured connecting wall plate 5. The connecting wall plate 5 can protect the damper 3 to a certain extent. It is made of lightweight concrete material, which can reduce the added mass of the shear wall without affecting the stress performance of the damper 3.

[0034] In this embodiment, the damper 3 is a pre-reserved gap damper, which includes an upper base plate 34, a lower base plate 35, a stop block 36, a first energy-dissipating metal plate 37, and a second energy-dissipating metal plate 38. The plate surface of the lower base plate 35 is arranged opposite to the plate surface of the upper base plate 34 and is fastened to the connecting steel plate 2 by a screw 4. One end of the stop block 36 is fixed on the side plate surface of the upper base plate 34 facing the lower base plate 35. A plurality of grooves 361 are provided on the end surface of the stop block 36 away from the upper base plate 34. There are two first energy-dissipating metal plates 37 located at both ends of the pre-reserved gap damper. The two ends of the two first energy-dissipating metal plates 37 are respectively fixed to the two plate surfaces opposite to the upper base plate 34 and the lower base plate 35. There are multiple second energy-dissipating metal plates 38, one end of each of the multiple second energy-dissipating metal plates 38 is fixed on the side plate surface of the lower base plate 35 facing the upper base plate 34, and the other end is inserted into the multiple grooves 361 one by one.

[0035] The upper and lower base plates are connected by a first energy-dissipating metal plate. At the same time, the upper and lower base plates are fastened to the connecting steel plate by screws. The second energy-dissipating metal plate is fixed to the lower base plate at one end and inserted into a groove at the other end, which can dissipate seismic energy and achieve seismic resistance of the shear wall.

[0036] To further optimize the above technical solution and achieve graded energy dissipation of earthquakes, the upper substrate 34 and the lower substrate 35 have the same length, and the length of the block 36 is less than the length of the upper substrate 34. Multiple grooves 361 are evenly distributed along the length direction of the block 36. The groove width of the grooves 361 from the middle of the block 36 to its two sides decreases sequentially, and the thickness of the corresponding second energy dissipation metal plate 38 decreases sequentially.

[0037] To further optimize the above technical solution, there is a gap between one end of the second energy-dissipating metal plate 38 and the inner wall of the groove 361, and the size of the gap between each second energy-dissipating metal plate 38 and the inner wall of its corresponding groove 361 is different.

[0038] In this embodiment, to ensure that the first energy-dissipating metal plate and the second energy-dissipating metal plate have sufficient yield strength, both the first energy-dissipating metal plate 37 and the second energy-dissipating metal plate 38 are X-shaped plates.

[0039] like Figure 4 As shown, the width of the middle part of the first energy-dissipating metal plate and the second energy-dissipating metal plate is smaller than the width of the two ends of the plate, and the width of the plate gradually increases from the middle to the two ends. This structure can effectively ensure that the energy-dissipating metal plate has extremely high yield performance.

[0040] To further optimize the above technical solution and ensure the reliability of the connection, there are multiple screws 4 and they are pre-embedded on the connecting steel plate 2; bolt holes corresponding to the screws 4 are opened at both ends of the upper substrate 34 or the lower substrate 35.

[0041] To further optimize the above technical solution and improve the overall stiffness and structural strength of the shear wall, a square steel reinforcement cage is installed inside the square steel pipe, and plain concrete is poured into the inner cavity of the square steel pipe and wraps the square steel reinforcement cage.

[0042] This embodiment also provides a construction method for a high-toughness prefabricated energy-dissipating shear wall, including the following steps: S1. Component prefabrication: Steel pipe column 1 and damper 3 are prefabricated in the factory, and connecting steel plate 2 is welded to the outer wall of steel pipe column 1; at the same time, bolt 4 is embedded in the preset position of connecting steel plate 2. S2. On-site assembly: hoist the steel pipe column 1 into place, and arrange the connecting steel plates 2 on the two adjacent steel pipe columns 1 in a relatively opposite manner; use the connecting steel plates 2 and the screws 4 to horizontally install the pre-reserved gap damper between the two adjacent steel pipe columns 1. S3. Casting connecting wall panel 5: Set up formwork around the outer perimeter of the two adjacent steel pipe columns 1 with the pre-installed gap damper, and pour lightweight concrete foam concrete into the formwork to form an integral connecting wall panel 5 that wraps the pre-installed gap damper. S4. Curing and Completion: After the connected wall panel 5 reaches the design strength, the formwork is removed, and the on-site assembly and construction of the entire shear wall unit is completed.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-toughness prefabricated energy-dissipating shear wall, characterized in that, include: The steel pipe column (1) is a plurality of steel pipe columns (1) arranged with their axes parallel; there is an assembly gap between the two opposite walls of two adjacent steel pipe columns (1); Connecting steel plate (2), the connecting steel plate (2) is welded and fixed to the two opposite outer walls of two adjacent steel pipe columns (1); Dampers (3), there are multiple dampers (3) and they are arranged at intervals in the assembly gap along the height direction of the steel pipe column (1); the two ends of the multiple dampers (3) are respectively threaded to the two connecting steel plates (2) by screws (4); The connecting wall panel (5) is made of lightweight concrete or foamed concrete; the lightweight concrete or foamed concrete is poured into the assembly gap and wraps the damper (3).

2. The high-toughness prefabricated energy-dissipating shear wall according to claim 1, characterized in that, The damper (3) is a graded yielding metal damper, which includes an inner ring plate (31), an outer ring plate (32), and a pad (33). The inner ring plate (31) and the outer ring plate (32) each include an arc segment arranged vertically and a straight segment connecting the two arc segments. The inner ring plate (31) is coaxially arranged in the inner cavity of the outer ring plate (32). The pad (33) is embedded between the two opposing walls of the straight segment of the inner ring plate (31) and the straight segment of the outer ring plate (32). The threaded end of the screw (4) passes through the straight segment of the inner ring plate (31), the pad (33), and the straight segment of the outer ring plate (32) in sequence and is fastened to the connecting steel plate (2) by a nut.

3. A high-toughness prefabricated energy-dissipating shear wall according to claim 2, characterized in that, The number of screws (4) is multiple and they are pre-embedded on the connecting steel plate (2); bolt holes are opened on the inner ring plate (31), the pad plate (33) and the outer ring plate (32) and are interconnected and correspond one-to-one with the screws (4).

4. A high-toughness prefabricated energy-dissipating shear wall according to claim 1, characterized in that, The damper (3) is a pre-reserved gap damper, which includes an upper base plate (34), a lower base plate (35), a stop block (36), a first energy-dissipating metal plate (37), and a second energy-dissipating metal plate (38); the plate surface of the lower base plate (35) is arranged opposite to the plate surface of the upper base plate (34) and is fastened to the connecting steel plate (2) by a screw (4); one end face of the stop block (36) is fixed to the side of the upper base plate (34) facing the lower base plate (35); the stop block (36) is away from the upper base plate (34) on one side. Multiple grooves (361) are provided on the end face; there are two first energy dissipation metal plates (37) located at both ends of the reserved gap damper; the two ends of the two first energy dissipation metal plates (37) are respectively fixed to the two plate surfaces opposite to the upper base plate (34) and the lower base plate (35); there are multiple second energy dissipation metal plates (38), one end of the multiple second energy dissipation metal plates (38) is fixed to the side plate surface of the lower base plate (35) facing the upper base plate (34), and the other end is inserted into the multiple grooves (361) one by one.

5. A high-toughness prefabricated energy-dissipating shear wall according to claim 4, characterized in that, The upper substrate (34) and the lower substrate (35) have the same length, and the length of the stop (36) is less than the length of the upper substrate (34). A plurality of grooves (361) are evenly distributed along the length direction of the stop (36). The groove width of the grooves (361) from the middle of the stop (36) toward both sides decreases sequentially, and the thickness of the corresponding second energy-dissipating metal plate (38) decreases sequentially.

6. A high-toughness prefabricated energy-dissipating shear wall according to claim 5, characterized in that, There is a gap between one end of the second energy-dissipating metal plate (38) and the inner wall of the groove (361).

7. A high-toughness prefabricated energy-dissipating shear wall according to claim 4, characterized in that, Both the first energy-dissipating metal plate (37) and the second energy-dissipating metal plate (38) are X-shaped plates.

8. A high-toughness prefabricated energy-dissipating shear wall according to claim 4, characterized in that, The number of screws (4) is multiple and they are pre-embedded on the connecting steel plate (2); bolt holes corresponding to the screws (4) are opened at both ends of the upper substrate (34) or the lower substrate (35).

9. A high-toughness prefabricated energy-dissipating shear wall according to claim 1, characterized in that, The steel pipe column (1) includes a square steel pipe and plain concrete poured into the inner cavity of the square steel pipe.

10. A construction method for a high-toughness prefabricated energy-dissipating shear wall according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Component prefabrication: Steel pipe column (1) and damper (3) are prefabricated in the factory, and connecting steel plate (2) is welded to the outer wall of steel pipe column (1); at the same time, bolt (4) is embedded in the preset position of connecting steel plate (2). S2. On-site assembly: hoist the steel pipe column (1) into place, and at the same time arrange the connecting steel plates (2) on the two adjacent steel pipe columns (1) relative to each other; install the damper (3) horizontally between the two adjacent steel pipe columns (1) through the connecting steel plate (2) and the screw (4); S3, pouring the connecting wall panel (5): set up a template around the two adjacent steel pipe columns (1) where the damper (3) has been installed, and pour lightweight concrete foam into the template to form an integral connecting wall panel (5) that wraps the damper (3). S4. Curing and completion: After the connected wall panels (5) reach the design strength, the formwork is removed, and the on-site assembly and construction of the entire shear wall unit is completed.

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