Deformed joint shear wall formwork structure and formwork setting construction method

Abstract

This application discloses a formwork structure and formwork support method for expansion joint shear walls. The expansion joint shear wall formwork structure includes formwork, with multiple formworks collectively enclosing a casting area. The formwork includes inner formwork, outer formwork, second side formwork, and first side formwork, wherein the first side formwork corresponds to the area where the expansion joint is located. The formwork collectively encloses the casting area, and the surface of each formwork facing away from the casting area is defined as the back side. The back sides of both the inner and outer formworks are provided with multiple wooden beams and multiple sets of steel pipes, with each set of steel pipes on the back side of the inner formwork corresponding to a set of steel pipes on the back side of the outer formwork. A pressure plate is provided on the back side of the first side formwork. Nuts are threadedly connected to several steel pipes on the back side of the inner formwork, and nuts are threadedly connected to several steel pipes on the back side of the outer formwork. The nuts are used to tighten the side edges of the pressure plate. This application makes it easier to fix the side formwork of the shear wall corresponding to the expansion joint.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to expansion joint shear wall formwork structures and formwork support construction methods. Background Technology

[0002] Shear walls, also known as wind-resistant walls, earthquake-resistant walls, or structural walls, are walls in buildings or structures that primarily bear horizontal and vertical loads (gravity) caused by wind or earthquakes, preventing structural shear failure. Buildings often deform under external forces, leading to cracking or even destruction. Expansion joints are structural joints designed to address this situation; they are a general term for expansion joints, settlement joints, and seismic joints.

[0003] Shear walls are typically reinforced concrete structures, and formwork erection is required during shear wall construction. The formwork structure for a shear wall mainly includes formwork, timber, steel pipes, tie rod assemblies, and steel pipe connecting fasteners. The timber and steel pipes are positioned on the side of the formwork furthest from the pouring area. The formwork includes inner formwork corresponding to the interior of the shear wall, outer formwork corresponding to the exterior of the shear wall, and side formwork corresponding to the corners of the shear wall. The inner and outer formwork are fixed together using tie rod assemblies, while the side formwork is fixed by connecting the steel pipes of the corresponding side formwork to the steel pipes of the corresponding inner and outer formwork using steel pipe connecting fasteners.

[0004] The expansion joints of shear walls are narrow, making it difficult to install the timber and steel pipes on the back of the side formwork near the expansion joint area during shear wall pouring. Sometimes, it is impossible to place the timber and steel pipes into the expansion joint area at the same time, making it difficult to support and fix the side formwork of the shear wall to be poured. This can easily lead to poor support of the side formwork near the expansion joint area, affecting the construction quality of the shear wall. Summary of the Invention

[0005] To reduce the difficulty in supporting and fixing formwork in the area of ​​shear walls near expansion joints, this application provides a formwork structure for expansion joint shear walls and a formwork support construction method.

[0006] The technical solution adopted in this application for the expansion joint shear wall formwork structure and formwork support construction method is as follows:

[0007] The expansion joint shear wall formwork structure includes formwork, with multiple formwork panels collectively enclosing a casting area. Each formwork panel includes an inner formwork, an outer formwork, a second side formwork, and a first side formwork, wherein the first side formwork corresponds to the area where the expansion joint is located. The formwork panels collectively enclose the casting area, and the surface of each formwork panel facing away from the casting area is defined as its back side. The back sides of both the inner and outer formwork panels are provided with multiple wooden beams and multiple sets of steel pipes. The steel pipes are located on the side of the wooden beams away from the casting area. Each set of steel pipes consists of two parallel pipes. Each set of steel pipes on the back side of the inner formwork corresponds to a set of steel pipes on the back side of the outer formwork, and the corresponding two sets of steel pipes are connected by several tie bolt assemblies. A pressure plate is provided on the back side of the first side formwork. Nuts are threaded onto the several steel pipes on the back side of the inner formwork, and nuts are threaded onto the several steel pipes on the back side of the outer formwork. The nuts are used to tighten the side edges of the pressure plate.

[0008] By adopting the above technical solution, when the shear wall on one side of the expansion joint is poured and the shear wall on the other side of the expansion joint needs to be poured, the shear wall formwork structure needs to be erected first. The operating space near the expansion joint area for the shear wall to be poured is narrow, and the formwork for the shear wall near the expansion joint is the first side formwork. Before fixing the first side formwork on the side corresponding to the expansion joint area, the inner side formwork, outer side formwork, and the second side formwork away from the expansion joint are all pre-fixed. When fixing the first side formwork, the pressure plate is placed in the area where the expansion joint is located, and then nuts are connected to the steel pipes on the back of the inner side formwork and the outer side formwork. The nuts are then tightened to press the edge of the pressure plate. By pressing the first side formwork with nuts and pressure plates, there is no need to set up wooden beams and steel pipe crossbars in the expansion joint area, making the narrow space of the expansion joint less likely to hinder the fixing of the first side formwork, thus making the formwork erection of the expansion joint shear wall more convenient. At the same time, the space in the expansion joint area can be used to set up pressure plates with large thickness dimensions, giving the pressure plates greater deformation resistance.

[0009] Optionally, the steel pipe is provided with a pin, which is used to limit the relative position of the steel pipe and the tie bolt assembly in the axial direction.

[0010] By adopting the above technical solution, when the nut tightens the pressure plate, the nut generates an axial tensile force on the steel pipe. At this time, the tie rod assembly forms an axial frictional resistance on the steel pipe, keeping the steel pipe's axial position stable. By setting pins, the relative axial position between the steel pipe and the tie rod assembly is restricted, which helps to further improve the stability of the steel pipe's axial position.

[0011] Optionally, a plurality of elongated gaskets are provided between the pressure plate and the first side template. The elongated gaskets are arranged vertically and horizontally.

[0012] By adopting the above technical solution, the two sides of the first side template are respectively connected to the edges of the inner side template and the outer side template; the long strip gasket can separate the pressure plate from the first side template, which can reduce the situation where the inner side template or the outer side template abuts against the surface of the pressure plate, thereby helping the pressure plate to fully exert its function of pressing the first side template.

[0013] Optionally, a connecting screw is connected to one end of the steel pipe near the side template, and the steel pipe is threadedly connected to the nut through the connecting screw.

[0014] By adopting the above technical solution, the steel pipe is connected to the nut via a connecting screw thread, thus eliminating the need for external threads on the outer circumference of the steel pipe for connecting the nut. The pitch of the external threads on the outer circumference of the steel pipe is limited by the outer circumference of the pipe, making it difficult to use standard-sized nuts in this situation. Using a connecting screw to connect the nut facilitates the use of standard-sized nuts, which helps reduce the cost of the formwork structure.

[0015] Optionally, a positioning bolt is connected between the steel pipe and the connecting screw. The positioning bolt is perpendicular to the steel pipe, passes through the steel pipe, and is threadedly connected to the connecting screw.

[0016] By adopting the above technical solution, the steel pipe and the connecting screw are connected by positioning bolts, so that the connecting screw and the steel pipe form a detachable connection. When the connecting screw is disassembled, the pressure plate can move in and out of the expansion joint in the horizontal direction, making the installation of the pressure plate more convenient.

[0017] Optionally, the positioning bolts include a first positioning bolt and a second positioning bolt, the first positioning bolt and the second positioning bolt being perpendicular to each other, and the first positioning bolt and the second positioning bolt being spaced apart along the axial direction of the steel pipe.

[0018] By adopting the above technical solution, the steel pipe and the connecting screw are connected and the load is transmitted through the positioning bolts. By making the first positioning bolt and the second positioning bolt perpendicular to each other and spaced apart along the axial direction, it is beneficial to make the load distribution between the steel pipe and the connecting screw more balanced.

[0019] Optionally, the pressure plate includes a plurality of grid plates, which are stacked together in a horizontal direction, and the connecting screw passes through the grid holes of the grid plates.

[0020] By adopting the above technical solution, several grating plates are stacked together to form a pressure plate. The grating plates have high rigidity, making the pressure plate less prone to deformation, which helps the pressure plate meet the requirements of pressing the first side template. Furthermore, the grating plates have closely arranged grating holes, eliminating the need for additional holes for screws to pass through, which is more convenient.

[0021] Optionally, the pressure plate includes two parallel thin steel plates, with a plurality of diagonal ribs connecting the two thin steel plates. The diagonal ribs are inclined relative to the thin steel plates. The diagonal ribs include a first diagonal rib and a second diagonal rib. The first diagonal rib and the second diagonal rib have opposite inclination directions. The first diagonal rib and the second diagonal rib are arranged alternately in sequence, and every two adjacent diagonal ribs abut against each other.

[0022] By adopting the above technical solution, two thin steel plates and diagonal ribs located between the two thin steel plates are combined to form a pressure plate, which minimizes the weight of the pressure plate while maintaining a relatively large thickness. With the first and second diagonal ribs arranged alternately and adjacent ribs abutting against each other, the adjacent ribs can support each other when the pressure plate is under pressure, which helps reduce the likelihood of breakage at the connection between the ribs and the thin steel plates.

[0023] Optionally, the connecting screws located on the back of the inner template and the connecting screws located on the back of the outer template are arranged in a one-to-one correspondence. An angle steel is connected between the corresponding two connecting screws. The length direction of the angle steel is set along the width direction of the pressure plate, and the two ends of the angle steel extend out of the surface of the pressure plate respectively. One side wing of the angle steel abuts against the pressure plate, and the two ends of the side wing of the angle steel abutting against the pressure plate are respectively provided with notches for avoiding the connecting screws. The notches are set downward.

[0024] By adopting the above technical solution, when the nut is tightened, it indirectly presses against the pressure plate through the angle steel. With notches at both ends of the angle steel, when the nut presses against the angle steel, the two opposite sides of the nut can simultaneously abut against the angle steel, which helps to ensure the stability of the nut's tightening state.

[0025] The formwork support construction method for expansion joint shear wall formwork structures includes the following steps:

[0026] Install concrete support blocks on the horizontal reinforcing bars; set up the formwork; install timber as vertical supports; install steel pipes as horizontal supports; place the pressure plate; connect the connecting bolts to the corresponding steel pipes; connect the nuts, tighten the nuts, and use the nuts to press the edge of the pressure plate.

[0027] By adopting the above technical solution, the first side template near the expansion joint area is fixed by using nuts and pressure plates. The nuts can apply pressure to the first side template by spiral locking, which helps to ensure the stability of the first side template.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] By tightening the first side formwork with nuts and pressure plates, there is no need to set up wooden beams and steel pipe crossbars in the expansion joint area. This makes it less likely that the narrow space of the expansion joint will hinder the fixing of the first side formwork, making the formwork erection of the expansion joint shear wall more convenient. At the same time, the space in the expansion joint area can be used to set up pressure plates with large thickness dimensions, so that the pressure plates have greater rigidity against deformation.

[0030] The steel pipe and the connecting screw are connected by positioning bolts, forming a detachable connection between the connecting screw and the steel pipe. When the connecting screw is removed, the pressure plate can move in and out of the expansion joint in the horizontal direction, making the installation of the pressure plate more convenient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0032] Figure 2 This is a schematic diagram of the overall structure from another perspective of Embodiment 1.

[0033] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0034] Figure 4 This is a schematic diagram of the overall structure of Example 2.

[0035] Figure 5 yes Figure 4 A magnified view of a portion of point B in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Template; 11. Inner template; 12. Outer template; 13. First side template; 14. Second side template; 2. Timber; 3. Steel pipe; 4. Tie bolt assembly; 5. Connecting clip; 6. Pressure plate; 61. Grating plate; 62. Thin steel plate; 621. Clearance hole; 63. Diagonal rib; 631. First diagonal rib; 632. Second diagonal rib; 7. Long strip washer; 8. Nut; 9. Connecting bolt; 91. Disc spring washer; 10. Positioning bolt; 101. First positioning bolt; 102. Second positioning bolt; 20. Pin; 30. Angle steel; 301. Notch. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5This application will be described in further detail. Example 1

[0039] This application discloses a formwork structure for expansion joint shear walls. (Refer to...) Figure 1 and Figure 2 The formwork structure for the expansion joint shear wall includes formwork 1, which includes an inner formwork 11, an outer formwork 12, a first side formwork 13, and a second side formwork 14. The first side formwork 13 corresponds to the area where the expansion joint is located. The surface of each formwork 1 facing away from the pouring area is defined as the back side. The back sides of both the inner and outer formwork 11 and the outer formwork 12 are provided with multiple timbers 2 and multiple sets of steel pipes 3. The steel pipes 3 are located on the side of the timbers 2 away from the pouring area. Each set of steel pipes 3 consists of two parallel pipes. The back side of the inner formwork 11... Each set of steel pipes 3 corresponds to a set of steel pipes 3 on the back of the outer template 12, and the two sets of steel pipes 3 are connected together by several tie bolt assemblies 4. The tie bolts of the tie bolt assembly 4 pass through the outer template 12 and the inner template 11. The back of the second side template 14 is provided with multiple wooden beams 2 and multiple steel pipes 3. One end of the steel pipe 3 on the back of the second side template 14 is connected to the steel pipe 3 on the back of the inner template 11 through a connecting buckle 5, and the other end is connected to the steel pipe 3 on the back of the outer template 12 through a connecting buckle 5.

[0040] The back of the first side template 13 is provided with a pressure plate 6. Two long strip-shaped gaskets 7 are provided between the pressure plate 6 and the first side template 13. The length of the long strip-shaped gaskets 7 is set vertically, and the two long strip-shaped gaskets 7 are arranged horizontally. The long strip-shaped gaskets 7 are bonded and fixed to the first side template 13. The bonding material can be glass glue or asphalt adhesive. One of the threads of each group of steel pipes 3 on the back of the inner template 11 is connected to a nut 8. One of the threads of each group of steel pipes 3 on the back of the outer template 12 is connected to a nut 8. The nuts 8 can be used to press the side edge of the pressure plate 6, so that the first side template 13 is well fixed.

[0041] Reference Figure 3 A connecting screw 9 is inserted and connected to one end of the steel pipe 3 near the first side template 13. The steel pipe 3 is threadedly connected to the nut 8 via the connecting screw 9. A positioning bolt 10 is connected between the steel pipe 3 and the connecting screw 9. The positioning bolt 10 is perpendicular to the steel pipe 3, and the steel pipe 3 has a through hole for the positioning bolt 10 to pass through. The positioning bolt 10 passes through the through hole and is threadedly connected to the connecting screw 9. A detachable connection is formed between the connecting screw 9 and the steel pipe 3. When the connecting screw 9 is removed, the pressure plate 6 can move in and out of the expansion joint in a horizontal direction, making the installation of the pressure plate 6 more convenient.

[0042] The positioning bolt 10 includes a first positioning bolt 101 and a second positioning bolt 102. The second positioning bolt 102 is perpendicular to the first positioning bolt 101 and the second positioning bolt 102 and the first positioning bolt 101 are spaced apart along the axial direction of the steel pipe 3.

[0043] Reference Figure 3 The steel pipe 3 is fitted with a pin 20, which is a flat-headed cylindrical pin with a hole. The pin 20 is used to limit the relative position of the steel pipe 3 and the tie bolt assembly 4 along the axial direction.

[0044] When the nut 8 presses the pressure plate 6, the nut 8 generates an axial tension on the steel pipe 3. At this time, the pin 20 can restrict the relative position of the steel pipe 3 and the tie bolt assembly 4 along the axial direction, which helps to reduce the situation where the steel pipe 3 moves along the axial direction under the action of the tension of the nut 8 to overcome the frictional resistance of the tie bolt assembly 4.

[0045] Reference Figure 1 The pressure plate 6 includes two grid plates 61, which are stacked horizontally together. A connecting screw 9 passes through the grid holes of the grid plates 61. The grid plates 61 have high rigidity, making the pressure plate 6 less prone to deformation, which helps the pressure plate 6 meet the requirements for pressing the first side template 13. Furthermore, the grid plates 61 have closely spaced grid holes, eliminating the need for additional holes for the screw to pass through, which is more convenient.

[0046] To improve the stability of the locked state of nut 8, a disc spring washer 91 is sleeved on the connecting screw 9. The disc spring washer 91 is located between nut 8 and pressure plate 6. After nut 8 is locked, the disc spring washer 91 can reduce the loosening of nut 8.

[0047] The implementation principle of the expansion joint shear wall formwork structure in this application embodiment is as follows: the shear wall corresponding to the expansion joint is constructed in stages. Before constructing the shear wall in the later stage, the shear wall formwork 1 structure needs to be erected first. When erecting the formwork 1 structure, the inner formwork 11, the outer formwork 12, and the second side formwork 14 away from the expansion joint are fixed first, and then the first side formwork 13 corresponding to the expansion joint area is fixed. When fixing the first side formwork 13, the pressure plate 6 is placed in the area where the expansion joint is located, and then the steel pipe 3 on the back of the inner formwork 11 is connected to the nut 8, and at the same time, the steel pipe 3 on the back of the outer formwork 12 is connected to the nut 8. The edge of the pressure plate 6 is pressed by locking the nut 8.

[0048] By pressing the corresponding first side template 13 with nuts 8 and pressure plates 6, there is no need to set up wooden beams 2 and steel pipes 3 in the expansion joint area. This makes it less likely that the narrow space of the expansion joint will hinder the fixing of the first side template 13, making the formwork 1 of the expansion joint shear wall easier to erect. At the same time, the space in the expansion joint area can be used to set up pressure plates 6 with large thickness, so that pressure plates 6 have greater rigidity against deformation.

[0049] This embodiment also discloses the formwork support construction method for the above-mentioned deformation joint shear wall formwork structure, including the following steps:

[0050] Step 1: Install concrete support blocks on the horizontal reinforcing bars;

[0051] Step 2, set up template 1;

[0052] Step 3, install the wooden beam 2 as the support;

[0053] Step 4: Install the steel pipe 3 as a crossbar, install the tie bolt assembly 4, use the tie bolt assembly 4 to fix the steel pipe 3 on the back of the inner template 11 and the steel pipe 3 on the back of the outer template 12, and use the connecting buckle 5 to install the steel pipe 3 on the back of the second side template 14.

[0054] Step 5: Insert the connecting screw 9 into the corresponding steel pipe 3, and use the positioning bolt 10 to connect and position it;

[0055] Step 7: Connect nut 8, tighten nut 8, and use nut 8 to press the edge of pressure plate 6.

[0056] The first side template 13 near the expansion joint area is fixed by using nut 8 and pressure plate 6. Nut 8 can apply pressure to the first side template 13 by screw locking, which helps to ensure the stability of the first side template 13. Example 2

[0057] The difference between this embodiment and Embodiment 1 lies in the structure of the pressure plate 6.

[0058] Reference Figure 4 and Figure 5 In this embodiment, the pressure plate 6 includes two parallel thin steel plates 62. Multiple diagonal ribs 63 are connected between the two thin steel plates 62. The diagonal ribs 63 are made of steel and are inclined relative to the thin steel plates 62. Each diagonal rib 63 includes a first diagonal rib 631 and a second diagonal rib 632. The first diagonal rib 631 and the second diagonal rib 632 have opposite inclination directions and are arranged alternately. Every two adjacent diagonal ribs 63 abut against each other. The diagonal ribs 63 are welded to the thin steel plates 62. The thin steel plates 62 are provided with welding rod clearance holes 621, allowing welding rods to pass through the clearance holes 621 to weld the diagonal ribs 63 to the thin steel plates 62.

[0059] The connecting screws 9 on the back of the inner template 11 and the connecting screws 9 on the back of the outer template 12 are arranged in a one-to-one correspondence. An angle steel 30 is connected between the corresponding two connecting screws 9. The length direction of the angle steel 30 is set along the width direction of the pressure plate 6. Both ends of the angle steel 30 extend out of the surface of the pressure plate 6. One side of the angle steel 30 abuts against the pressure plate 6. The side of the angle steel 30 abutting against the pressure plate 6 is located between the nut 8 and the pressure plate 6. Both ends of the side of the angle steel 30 abutting against the pressure plate 6 are provided with notches 301 for avoiding the connecting screws 9. The notches 301 are set downward.

[0060] When nut 8 is tightened, nut 8 indirectly presses against pressure plate 6 through angle steel 30. With notches 301 provided at both ends of angle steel 30, when nut 8 presses against angle steel 30, the two opposite sides of nut 8 can simultaneously abut against angle steel 30, which helps to ensure the stability of the tightened state of nut 8.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A formwork structure for a shear wall with expansion joints, comprising a formwork (1), wherein multiple formworks (1) together enclose a pouring area, the formwork (1) comprising an inner formwork (11), an outer formwork (12), a first side formwork (13), and a second side formwork (14), wherein the first side formwork (13) corresponds to the area where the expansion joint is located, and each formwork (1) together encloses the pouring area, the surface of each formwork (1) away from the pouring area is defined as the back side; the back side of the inner formwork (11) and the outer formwork (12) are provided with multiple wooden beams (2) and multiple sets of steel pipes (3), the steel pipes (3) are located on the side of the wooden beams (2) away from the pouring area, each set of steel pipes (3) consists of two, and they are parallel to each other; each set of steel pipes (3) on the back side of the inner formwork (11) corresponds to a set of steel pipes (3) on the back side of the outer formwork (12), and the corresponding two sets of steel pipes (3) are connected together by a number of tie bolt assemblies (4); characterized in that, The first side template (13) has a pressure plate (6) on its back; a plurality of steel pipes (3) on the back of the inner template (11) are threaded with nuts (8), and a plurality of steel pipes (3) on the back of the outer template (12) are threaded with nuts (8), and the nuts (8) are used to press the side edge of the pressure plate (6).

2. The expansion joint shear wall formwork structure according to claim 1, characterized in that: The steel pipe (3) is provided with a pin (20) for limiting the relative position of the steel pipe (3) and the tie bolt assembly (4) along the axial direction.

3. The expansion joint shear wall formwork structure according to claim 1, characterized in that: Several long strip-shaped gaskets (7) are provided between the pressure plate (6) and the first side template (13). The long strip-shaped gaskets (7) are arranged vertically and arranged horizontally.

4. The expansion joint shear wall formwork structure according to claim 1, characterized in that: The steel pipe (3) is connected to a connecting screw (9) at one end near the side template (1), and the steel pipe (3) is threadedly connected to the nut (8) through the connecting screw (9).

5. The expansion joint shear wall formwork structure according to claim 4, characterized in that: The steel pipe (3) and the connecting screw (9) are connected by a positioning bolt (10). The positioning bolt (10) is perpendicular to the steel pipe (3), and the positioning bolt (10) is threaded through the steel pipe (3) and threadedly connected to the connecting screw (9).

6. The expansion joint shear wall formwork structure according to claim 5, characterized in that: The positioning bolt (10) includes a first positioning bolt (101) and a second positioning bolt (102). The first positioning bolt (101) and the second positioning bolt (102) are perpendicular to each other and are spaced apart along the axial direction of the steel pipe (3).

7. The expansion joint shear wall formwork structure according to claim 4, characterized in that: The pressure plate (6) includes a plurality of grid plates (61), which are stacked together in a horizontal direction, and the connecting screw (9) passes through the grid holes of the grid plates (61).

8. The expansion joint shear wall formwork structure according to claim 4, characterized in that: The pressure plate (6) includes two parallel thin steel plates (62), and a plurality of diagonal ribs (63) are connected between the two thin steel plates (62). The diagonal ribs (63) are inclined relative to the thin steel plates (62). The diagonal ribs (63) include a first diagonal rib (631) and a second diagonal rib (632). The first diagonal rib (631) and the second diagonal rib (632) are inclined in opposite directions. The first diagonal rib (631) and the second diagonal rib (632) are arranged alternately in sequence, and every two adjacent diagonal ribs (63) abut against each other.

9. The formwork structure for expansion joint shear walls according to claim 8, characterized in that: The connecting screws (9) on the back of the inner template (11) and the connecting screws (9) on the back of the outer template (12) are arranged in a one-to-one correspondence. An angle steel (30) is connected between the two corresponding connecting screws (9). The length direction of the angle steel (30) is set along the width direction of the pressure plate (6). The two ends of the angle steel (30) extend out of the surface of the pressure plate (6). One side wing of the angle steel (30) abuts against the pressure plate (6). The two ends of the side wing of the angle steel (30) abutting against the pressure plate (6) are respectively provided with notches (301) for avoiding the connecting screws (9). The notches (301) are set downward.

10. The formwork support construction method for the expansion joint shear wall formwork structure according to any one of claims 4-9, characterized in that, Includes the following steps: Install concrete support blocks on the horizontal reinforcing bars; Erect template (1); Install the wooden beams (2) used as supports; Install steel pipes as crossbars (3); Connect the connecting screw (9) to the corresponding steel pipe (3); Connect the nut (8), lock the nut (8), and use the nut (8) to press the edge of the pressure plate (6).

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