Prefabricated assembly type shear wall connecting structure and method

Abstract

The application discloses a prefabricated assembly type shear wall connecting structure and method, and relates to the technical field of building construction. The prefabricated assembly type shear wall connecting structure comprises a steel pipe core tube, a plurality of rows of U-shaped tie steel bars are arranged in the circumferential direction of the steel pipe core tube, the angle between two adjacent rows of the U-shaped tie steel bars can be adjusted, and the end of the U-shaped tie steel bar is used for being connected with a tie bar in a nearby wall body. A shape memory alloy assembly is located between two side edges of the U-shaped tie steel bar, one end of the shape memory alloy assembly is connected with the side wall of the steel pipe core tube, and the other end of the shape memory alloy assembly is connected with the tie bar in the nearby wall body. The formwork is fixedly connected with the side wall of one end of the nearby steel pipe core tube of the wall body, and the formwork can enclose the steel pipe core tube, the U-shaped tie steel bar and the shape memory alloy assembly in a closed space with an open top. The prefabricated assembly type shear wall connecting structure and method are simple to operate and excellent in anti-seismic effect.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a prefabricated assembled shear wall connection structure and method. Background Technology

[0002] With the accelerated advancement of industrialization in construction, prefabricated concrete structures have been widely promoted and applied in the field of building engineering due to their outstanding advantages such as high construction efficiency, minimal environmental impact, and easy control over component quality. Among them, prefabricated shear walls, as one of the core load-bearing components of prefabricated structures, directly determine the safety, stability, and service life of the entire building structure through the reliability of their joint connections, ease of construction, and seismic and waterproof performance. This is especially true in underground structural engineering, where the aforementioned performance requirements are even more stringent.

[0003] Currently, most existing prefabricated shear wall joint connection technologies employ a method where longitudinal reinforcing bars within the precast slab extend from the slab end or side support into the post-cast concrete of the supporting beam or wall. Tie bars are also placed at intersections and other joint areas to ensure connection strength. However, in practical engineering applications, this traditional connection technology has many technical shortcomings that urgently need to be addressed.

[0004] First, construction quality control is difficult. In traditional node connection methods, the configuration and installation of tie bars in the cross zone rely entirely on on-site manual operation. Key parameters such as the spacing of the tie bars, anchorage length, and binding firmness are easily affected by factors such as the skill level of the construction personnel and the on-site working environment. This not only makes construction difficult, but also lacks intuitive and effective testing methods for subsequent quality inspection and acceptance, making it difficult to ensure that the construction quality meets the design requirements, thus leaving potential structural safety hazards.

[0005] Secondly, the seismic performance and structural ductility are insufficient. The core load-bearing system of traditional prefabricated connection nodes mainly relies on the joint work of ordinary concrete and steel bars. Concrete itself is relatively brittle, and under horizontal loads such as earthquakes, the node area is prone to cracks or even failure. The nodes have weak energy dissipation capacity and insufficient ductility, and cannot effectively resist seismic impact forces, making it difficult to meet the core requirements of seismic design of building structures. This problem is particularly prominent in areas with high-intensity earthquakes.

[0006] Therefore, there is an urgent need to design a technical solution that is simple to operate and has excellent seismic resistance. Summary of the Invention

[0007] The purpose of this invention is to provide a prefabricated assembled shear wall connection structure and method to solve the problems existing in the prior art, which is simple to operate and has excellent seismic resistance.

[0008] To achieve the above objectives, the present invention provides the following solution: This invention provides a prefabricated assembled shear wall connection structure, comprising: The steel pipe core tube has multiple rows of U-shaped tie bars arranged around its circumference. The angle between two adjacent rows of U-shaped tie bars can be adjusted. The ends of the U-shaped tie bars are used to connect with tie bars in the adjacent wall. A shape memory alloy component is located between two sides of the U-shaped tie bar, with one end connected to the side wall of the steel pipe core and the other end connected to a tie bar in an adjacent wall; and The template is detachable and is fixedly connected to the side wall of the wall near the end of the steel pipe core tube. The template can enclose the steel pipe core tube, U-shaped tie bars, and shape memory alloy components in a closed space with an open top.

[0009] In one embodiment, multiple rows of holes are formed on the side wall of the steel pipe core tube, arranged axially along the steel pipe core tube. Each group of holes includes multiple holes arranged circumferentially along the steel pipe core tube, and the U-shaped tie bars are connected to the holes.

[0010] In one embodiment, a plurality of flanges are fitted onto the steel pipe core tube, and a plurality of flange connection holes are provided on the flanges. The flange connection holes correspond one-to-one with the holes at the same height of the hole group; one end of the opening of the U-shaped tie bar is fixedly connected to the corresponding hole through the flange connection hole.

[0011] In one embodiment, one end of the U-shaped tie bar opening is fixedly connected to a directional adjustment sleeve via a self-locking device. The directional adjustment sleeve is threadedly connected to the flange connection hole of the flange and passes through the flange connection hole to be fixedly connected to the corresponding hole.

[0012] In one embodiment, a plurality of annular steel plate reinforcing ribs are fixedly sleeved on the core tube of the steel pipe, and the steel plate reinforcing ribs are provided with drilled holes, and the shape memory alloy components are fixedly connected to the drilled holes.

[0013] In one embodiment, the shape memory alloy assembly includes a steel pipe and a rod-shaped shape memory alloy. One end of the steel pipe is fixedly connected to the drilled hole, and the other end is fixedly connected to a shape memory alloy. The end of the shape memory alloy away from the steel pipe is connected to a tie bar in the adjacent wall.

[0014] In one embodiment, a reserved channel is provided on the side wall of the wall near the steel pipe core tube. The template fits against the side wall of the wall and is fixedly connected to the reserved channel of the wall by a connecting component.

[0015] In one embodiment, the template includes a plate-shaped first template and a plate-shaped second template. One end of the first template is provided with a bearing, and a rotating shaft passes through the bearing. One end of the second template is sleeved on the rotating shaft.

[0016] In one embodiment, the side of the first template away from the wall and the side of the second template away from the wall can be fixedly connected by a U-shaped connecting rod.

[0017] The present invention also provides a method for connecting prefabricated assembled shear walls, comprising the following steps: Based on the number and arrangement angle of the walls, shape memory alloy components and U-shaped tie bars are installed on the steel pipe core tube; The U-shaped tie bars are staggered with the tie bars pre-installed on the adjacent wall and are tied and fixed with vertical steel bars respectively; Tie the shape memory alloy components to the wall with tie bars; The template is installed and fits against the side wall of the wall. It is also fixedly connected to the reserved holes in the wall through the connecting components. The template encloses the steel pipe core tube, U-shaped tie bars, and shape memory alloy components. Concrete is poured within the space enclosed by the formwork, and after curing, the formwork is removed to complete the connection of the prefabricated wall.

[0018] The present invention achieves the following technical effects compared to the prior art: Traditional prefabricated connection nodes require tie bars at the cross-shaped area of ​​the wall, making construction quality control difficult. This invention uses a steel pipe core tube positioned at the center of the wall's cross-shaped area. After pre-assembly with U-shaped tie bars and alloy memory alloy components, it is used on-site, facilitating quality control. The steel pipe core tube itself has a certain load-bearing capacity. Using post-cast concrete, it forms a steel-confined concrete composite structure, significantly increasing its load-bearing capacity. The steel pipe core tube combined with concrete has better ductility than ordinary concrete columns, improving energy dissipation during earthquakes and adding an extra layer of seismic resistance for greater structural safety. When the steel pipe core tube structure is bound to the wall's tie bars, it can be connected to diagonally connected shape memory alloy components, enabling daily monitoring, epicenter energy dissipation, and post-earthquake repair. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a partial structural diagram of the steel pipe core tube in Embodiment 1 of the present invention; Figure 2 This is a partial structural diagram of the U-shaped tie bar, flange, and direction adjustment sleeve in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the prefabricated assembled shear wall connection structure in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the wall structure; Figure 5 This is a schematic diagram of the connection process of the prefabricated assembled shear wall in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the prefabricated assembled shear wall connection structure in Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the connection process of the prefabricated assembled shear wall in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the prefabricated assembled shear wall connection structure in Embodiment 3 of the present invention; Figure 9 This is a schematic diagram of the connection process of the prefabricated assembled shear wall in Embodiment 3 of the present invention; Figure 10 This is a schematic diagram of the prefabricated assembled shear wall connection structure in Embodiment 4 of the present invention; Figure 11 This is a schematic diagram of the connection process of the prefabricated assembled shear wall in Embodiment 4 of the present invention; Figure 12 This is a schematic diagram of the directional adjustment sleeve structure at different angles according to the present invention.

[0021] In the diagram: 1-Steel pipe core tube, 2-Steel plate reinforcing rib, 3-Flange, 4-Steel pipe, 5-Shape memory alloy, 6-U-shaped tie bar, 7-Directional adjustment sleeve, 8-Self-locking device, 9-Wall, 10-Tie bar, 11-Reserved hole, 12-Vertical reinforcement, 13-Formwork, 14-Tie rod, 15-Bolt, 16-Drill hole, 17-Fastener, 18-Bearing. Detailed Implementation

[0022] 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.

[0023] The purpose of this invention is to provide a prefabricated assembled shear wall connection structure and method to solve the problems existing in the prior art, which is simple to operate and has excellent seismic resistance.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This invention provides a prefabricated assembled shear wall connection structure, such as... Figures 1-12 As shown, the system includes a steel pipe core tube 1, a shape memory alloy component, and a detachable template 13. The steel pipe core tube 1 has multiple rows of U-shaped tie bars 6 arranged circumferentially. The angle between adjacent rows of U-shaped tie bars 6 is adjustable. The ends of the U-shaped tie bars 6 are used to connect to tie bars 10 in the adjacent wall 9. The shape memory alloy component is located between the two sides of the U-shaped tie bars 6, with one end connected to the side wall of the steel pipe core tube and the other end connected to the tie bar 10 in the adjacent wall 9. The detachable template 13 is fixedly connected to the side wall of the wall 9 near the end of the steel pipe core tube. The template 13 can enclose the steel pipe core tube 1, the U-shaped tie bars 6, and the shape memory alloy component within a closed space with an open top. In this embodiment, the template 13 is made of aluminum. Traditional prefabricated connection nodes require tie bars 10 at the cross-shaped area of ​​wall 9, making construction quality control difficult. This invention uses a steel pipe core tube positioned at the center of the cross-shaped area of ​​wall 9. After pre-assembly with U-shaped tie bars 6 and alloy memory alloy components, along with the tie bars 10 of wall 9, it can be used on-site, facilitating quality control. The steel pipe core tube 1 itself has a certain load-bearing capacity. Using post-cast concrete, it forms a steel-confined concrete composite structure, significantly increasing its load-bearing capacity. The steel pipe core tube 1, combined with concrete, has better ductility than ordinary concrete columns, improving energy dissipation during earthquakes and adding an extra layer of seismic resistance, making the structure safer. When the steel pipe core tube 1 structure is bound to the tie bars 10 of wall 9, it can be connected to obliquely connected shape memory alloy components, enabling daily monitoring and epicenter energy dissipation functions, as well as post-earthquake repair.

[0026] In one embodiment, another steel pipe core tube 1 can be fitted on top of the steel pipe core tube 1, and multiple steel pipe core tubes 1 are arranged coaxially and fixedly stacked in sequence to meet the connection requirements of walls 9 of different heights.

[0027] In one embodiment, multiple rows of holes are arranged axially along the sidewall of the steel pipe core tube 1. Each group of holes includes multiple holes arranged circumferentially along the steel pipe core tube 1. Multiple flanges 3 are fitted onto the steel pipe core tube 1. Fasteners 17 are provided on the flanges 3. The fasteners 17 can be bolts or screws. After the flanges 3 are fitted onto the steel pipe core tube 1 at a set position, the fasteners 17 can tighten the flanges 3, thereby fixing them at the set position of the steel pipe core tube 1. Multiple flange connection holes are provided on the flanges 3. The flanges 3 are fixed at a certain position of a group of holes in the steel pipe core tube 1 so that the flange connection holes correspond one-to-one with the holes at the same height in the group of holes. One end of the U-shaped tie bar 6 is fixedly connected to the corresponding hole through the flange connection hole.

[0028] In one embodiment, one open end of the U-shaped tie bar 6 is fixedly connected to a directional adjustment sleeve 7 via a self-locking device 8. The self-locking device 8 can be a latch or snap-fit, etc., to facilitate locking of the directional adjustment sleeve 7. The directional adjustment sleeve 7 is threadedly connected to the flange connection hole of the flange 3 and passes through the flange connection hole to be fixedly connected to the corresponding hole. Specifically, the outer end of the directional adjustment sleeve 7 is threaded, and the self-locking device 8 is installed inside. When the U-shaped tie bar 10 is inserted into the directional adjustment sleeve 7, it is locked to prevent the directional adjustment sleeve 7 from disengaging from the U-shaped tie bar 10. The hole is a threaded channel structure. The directional adjustment sleeve 7 is threaded into the flange 3 and passes through the flange 3 to mate with the hole of the steel pipe core tube 1, and is tightened and fixed. The directional adjustment sleeve has multiple tilt angles. According to engineering requirements, directional adjustment sleeves with different angles can be replaced to achieve the purpose of arbitrary connection at multiple angles.

[0029] In one embodiment, a plurality of steel plate reinforcing ribs 2 are fixedly sleeved on the steel pipe core tube 1. The steel plate reinforcing ribs 2 have drilled holes 16, and shape memory alloy components are fixedly connected to the drilled holes 16. The steel plate reinforcing ribs 2 are annular steel plates, welded to the steel pipe core tube 1. The steel plate reinforcing ribs 2 have drilled holes 16, on which shape memory alloy components are installed. The shape memory alloy components include a steel pipe 4 and a rod-shaped shape memory alloy 5. The steel pipe 4 is a protective sleeve. One end of the steel pipe 4 is fixedly connected to the drilled hole 16, and the other end is fixedly connected to a shape memory alloy 5. The end of the shape memory alloy 5 away from the steel pipe 4 is tied to the tie bar 10 in the adjacent wall 9.

[0030] In one embodiment, a reserved channel 11 is provided on the side wall of the wall 9 near the steel pipe core tube 1. The template 13 is fitted against the side wall of the wall 9 and is fixedly connected to the reserved channel 11 of the wall 9 through a connecting assembly. The connecting assembly includes a tie rod 14 and a bolt 15. The tie rod 14 passes through the reserved channel 11 and the adjacent template 13, and then the threaded connecting bolt 15 is fixed to the end of the tie rod 14, so that the template 13 is fixedly fitted against the side of the wall 9 near the steel pipe core tube 1. In one embodiment, the template 13 includes a plate-shaped first template and a plate-shaped second template. A bearing 18 is provided at one end of the first template, and a rotating shaft passes through the bearing 18. One end of the second template is sleeved on the rotating shaft. The first template is fitted and fixed to one wall 9, and the second template is fitted and fixed to another adjacent wall 9. When the two walls 9 are arranged at an angle of less than or equal to 90 degrees, the side of the first template away from the wall 9 and the side of the second template away from the wall 9 can be fixedly connected by a U-shaped connecting rod.

[0031] This invention also provides a method for connecting prefabricated assembled shear walls, which uses a prefabricated assembled shear wall connection structure for connection, including the following steps: Based on the number and arrangement angle of the wall 9, the shape memory alloy components and U-shaped tie bars 10 are installed on the steel pipe core tube 1; The U-shaped tie bar 10 is staggered with the tie bar 10 reserved on the adjacent wall 9, and is tied and fixed by vertical steel bars 12 respectively; Tie the shape memory alloy component with the tie bar 10 near the wall 9; Install template 13, which fits against the side wall of wall 9 and is fixedly connected to the reserved hole 11 of the wall 9 through connecting components. The template 13 encloses the steel pipe core tube 1, U-shaped tie bar 10, and shape memory alloy component. Concrete is poured within the space enclosed by formwork 13. After curing, formwork 13 is removed to complete the connection of the prefabricated wall 9.

[0032] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this embodiment uses a cross-shaped arrangement of four wall sections 9 as an example for illustration. In this embodiment, the steel pipe core tube 1 has four rows of U-shaped tie bars 6 arranged circumferentially. Each row includes multiple U-shaped tie bars 6 arranged along the axial direction of the steel pipe core tube 1, and the angle between two adjacent rows of U-shaped tie bars 6 is 90 degrees. In this embodiment, the steel pipe core tube 1 is vertically arranged at the cross-shaped area of ​​the four wall sections 9. After the steel pipe core tube 1 is installed, the U-shaped tie bars 10 are staggered with the tie bars 10 reserved at the ends of the adjacent wall sections 9, and are tied and fixed by four or more vertical steel bars 12. Then, the tie bars 10 of the wall sections 9 are tied and fixed by the shape memory alloy 5 installed on the reinforcing ribs. Then, install templates 13. Four templates 13 are required. The first template of template 13 is fixedly attached to the side wall of one wall 9. The second template of template 13 is fixedly attached to the side wall of another adjacent wall 9 that is perpendicular to the wall 9 where the first template is located. Templates 13 are secured with bolts 15 after passing through pre-reserved holes 11 via tie rods 14. The four templates 13 form a closed area with an open top. Concrete is then poured into this closed area. After curing, the templates 13 are removed, completing the connection of the prefabricated wall.

[0033] Example 2 like Figure 6 and Figure 7 As shown, this embodiment uses the connection of two parallel walls 9 as an example. In this embodiment, the steel pipe core tube 1 has two rows of U-shaped tie bars 6 arranged on the same plane around its circumference. Each row includes multiple U-shaped tie bars 6 arranged axially along the steel pipe core tube 1, and the angle between the two rows of U-shaped tie bars 6 is 180 degrees. In this embodiment, the steel pipe core tube 1 is vertically arranged between the two walls 9. After the steel pipe core tube 1 is installed, the U-shaped tie bars 10 are staggered with the tie bars 10 reserved at the ends of the adjacent walls 9, and are respectively tied and fixed by four or more vertical steel bars 12. Then, the shape memory alloy 5 installed on the reinforcing ribs is tied and fixed to the tie bars 10 of the walls 9. Then, the template 13 is installed. Two templates 13 are required. The first template 13 is fixedly attached to the side wall of one wall 9, and the second template 13 is fixedly attached to the side wall of the other wall 9. The template 13 is fixed with bolts 15 after passing through the reserved holes 11 via tie rods 14. In this embodiment, the angle between the first template and the second template of template 13 is 180 degrees; the two templates 13 located on both sides of the wall 9 cooperate with the two walls 9 to form a closed area with an opening at the top, and then concrete is poured into the closed area. After curing, the templates 13 are removed to complete the connection of the prefabricated wall.

[0034] Example 3 like Figure 8 and Figure 9As shown, this embodiment uses the connection of three T-shaped walls 9 as an example. The steel core tube 1 in this embodiment has three rows of U-shaped tie bars 6 arranged circumferentially. Each row includes multiple U-shaped tie bars 6 arranged axially along the steel core tube 1, and the angle between adjacent rows of U-shaped tie bars 6 is 90 degrees. In this embodiment, the steel core tube 1 is vertically arranged at the center of the connection between the three walls 9. After the steel core tube 1 is installed, the U-shaped tie bars 10 are staggered with the tie bars 10 reserved at the ends of adjacent walls 9, and are respectively tied and fixed by four or more vertical steel bars 12. Then, the shape memory alloy 5 installed on the reinforcing ribs is tied and fixed to the tie bars 10 of the walls 9. Then, the template 13 is installed. Three templates 13 are required. The first template 13 is fixedly attached to the side wall of one wall 9, and the second template 13 is fixedly attached to the side wall of another adjacent wall 9. The template 13 is fixed with bolts 15 after passing through the reserved holes 11 via tie rods 14. In this embodiment, the angle between the first template and the second template of template 13 is 90 degrees; the three templates 13, together with the three wall bodies 9, form a closed area with an open top. Then, concrete is poured into the closed area, and after curing, the templates 13 are removed to complete the connection of the prefabricated wall.

[0035] Example 4 like Figure 10 and Figure 11 As shown, this embodiment uses the connection of two vertically arranged walls 9 as an example. In this embodiment, the steel pipe core tube 1 has two rows of vertical U-shaped tie bars 6 arranged circumferentially. Each row includes multiple U-shaped tie bars 6 arranged axially along the steel pipe core tube 1, and the angle between the two rows of U-shaped tie bars 6 is 90 degrees. In this embodiment, the steel pipe core tube 1 is vertically arranged at the intersection of the extended lines of the ends of the two walls 9. After the steel pipe core tube 1 is installed, the U-shaped tie bars 10 are staggered with the tie bars 10 reserved at the ends of the adjacent walls 9, and are respectively tied and fixed by four or more vertical steel bars 12. Then, the tie bars 10 of the walls 9 are tied and fixed by the shape memory alloy 5 installed on the reinforcing ribs. Then, the template 13 is installed. Two templates 13 are required. The first template 13 is fixedly attached to the side wall of one wall 9, and the second template 13 is fixedly attached to the side wall of the other wall 9. The template 13 is fixed with bolts 15 after passing through the reserved holes 11 via tie rods 14. In this embodiment, the angle between the first template and the second template of template 13 is 90 degrees; the two templates 13 located on both sides of the wall 9 cooperate with the two walls 9 to form a closed area with an opening at the top, and then concrete is poured into the closed area. After curing, the templates 13 are removed to complete the connection of the prefabricated wall.

[0036] This invention employs a steel pipe core tube 1, which improves load-bearing capacity. The pre-assembly of the steel pipe confinement with flanges 3, directional adjustment sleeves 7, and U-shaped tie bars 10 facilitates control over construction quality. Matching connection methods can be selected according to the actual project, satisfying connections at any angle for two, three, or four precast shear walls. The steel pipe confinement core tube structure enhances energy dissipation capacity during earthquakes, adding an extra layer of seismic defense and making the structure safer. Furthermore, oblique shape memory alloy 5 can be added between different tie bars 10 in the steel pipe confinement core tube structure to achieve daily monitoring and epicenter energy dissipation functions, and to enable post-earthquake repair.

[0037] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A prefabricated assembled shear wall connection structure, characterized in that: include: The steel pipe core tube has multiple rows of U-shaped tie bars arranged around its circumference. The angle between two adjacent rows of U-shaped tie bars can be adjusted. The ends of the U-shaped tie bars are used to connect with tie bars in the adjacent wall. A shape memory alloy component is located between two sides of the U-shaped tie bar, with one end connected to the side wall of the steel pipe core and the other end connected to a tie bar in an adjacent wall; and The template is detachable and is fixedly connected to the side wall of the wall near the end of the steel pipe core tube. The template can enclose the steel pipe core tube, U-shaped tie bars, and shape memory alloy components in a closed space with an open top.

2. The prefabricated assembled shear wall connection structure according to claim 1, characterized in that: Multiple rows of holes are formed on the side wall of the steel pipe core tube, arranged along the axial direction of the steel pipe core tube. Each group of holes includes multiple holes arranged circumferentially along the steel pipe core tube, and the U-shaped tie bars are connected to the holes.

3. The prefabricated assembled shear wall connection structure according to claim 2, characterized in that: Multiple flanges are fitted onto the steel pipe core tube, and multiple flange connection holes are opened on the flanges. The flange connection holes correspond one-to-one with the holes at the same height of the hole group; one end of the opening of the U-shaped tie bar is fixedly connected to the corresponding hole through the flange connection hole.

4. The prefabricated assembled shear wall connection structure according to claim 3, characterized in that: One end of the U-shaped tie bar opening is fixedly connected to a directional adjustment sleeve via a self-locking device. The directional adjustment sleeve is threadedly connected to the flange connection hole of the flange and passes through the flange connection hole to be fixedly connected to the corresponding hole.

5. The prefabricated assembled shear wall connection structure according to claim 2, characterized in that: Multiple steel plate reinforcing ribs are fixedly sleeved on the steel pipe core tube. The steel plate reinforcing ribs are provided with drilled holes, and the shape memory alloy components are fixedly connected to the drilled holes.

6. The prefabricated assembled shear wall connection structure according to claim 5, characterized in that: The shape memory alloy assembly includes a steel pipe and a rod-shaped shape memory alloy. One end of the steel pipe is fixedly connected to the drilled hole, and the other end is fixedly connected to a shape memory alloy. The end of the shape memory alloy away from the steel pipe is connected to a tie bar in the adjacent wall.

7. The prefabricated assembled shear wall connection structure according to claim 1, characterized in that: The wall has a reserved channel on the side wall near the steel pipe core tube. The template fits the side wall of the wall and is fixedly connected to the reserved channel of the wall through a connecting component.

8. The prefabricated assembled shear wall connection structure according to claim 7, characterized in that: The template includes a plate-shaped first template and a plate-shaped second template. One end of the first template is provided with a bearing, and a rotating shaft passes through the bearing. One end of the second template is sleeved on the rotating shaft.

9. The prefabricated assembled shear wall connection structure according to claim 8, characterized in that: The first template on the side away from the wall and the second template on the side away from the wall can be fixedly connected by a U-shaped connecting rod.

10. A method for connecting prefabricated assembled shear walls, characterized in that: Includes the following steps: Based on the number and arrangement angle of the walls, shape memory alloy components and U-shaped tie bars are installed on the steel pipe core tube; The U-shaped tie bars are staggered with the tie bars pre-installed on the adjacent wall and are tied and fixed with vertical steel bars respectively; Tie the shape memory alloy components to the wall with tie bars; The template is installed and fits against the side wall of the wall. It is also fixedly connected to the reserved holes in the wall through the connecting components. The template encloses the steel pipe core tube, U-shaped tie bars, and shape memory alloy components. Concrete is poured within the enclosed space of the formwork, and after curing, the formwork is removed to complete the connection of the prefabricated wall.

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