Formwork system and construction method for casting concrete for settlement joint shear walls in high-rise buildings

Abstract

This invention discloses a casting template system and construction method for settlement joint shear walls in high-rise buildings. The system includes a steel plate assembly (1); a thickness adjustment mechanism (2) for adjusting the thickness of the inner template formed by the steel plate assembly (1), which includes a left connecting rod (208) and a right connecting rod (201) disposed between the steel plate assemblies (1), slids (202) symmetrically disposed at both ends of the left connecting rod (208) and the right connecting rod (201), a first connecting rod (204) and a second connecting rod (205) slidably connected to the left and right sliding grooves (202) respectively by a slider (203), the first connecting rod (204) and the second connecting rod (205) being respectively connected to a rotating connecting shaft (206); a thickness positioning mechanism (3) for preventing the thickness adjustment mechanism (2) from being retracted under pressure; and an outer template (6) for forming the outer side of the casting cavity. The system of this invention realizes adaptive adjustment and precision control of the template for settlement joint shear walls in high-rise buildings.

Description

Technical Field

[0001] This invention belongs to the technical field of casting formwork devices, and more specifically, relates to a casting formwork system and construction method for settlement joint shear walls in high-rise buildings. Background Technology

[0002] Settlement joints are vertical joints installed to prevent damage to buildings caused by uneven settlement of the foundation. When adjacent parts of a building differ significantly in height, load, and structural form, and the foundation is weak, uneven settlement may occur, leading to cracks in certain weaker areas. Therefore, settlement joints should be installed at appropriate locations, such as complex plan or shape transitions, height changes, and areas where loads, foundation compressibility, and foundation treatment methods differ significantly. Settlement joints should penetrate not only the superstructure but also the foundation itself. The width of the settlement joint should not be less than 120mm. Ensuring that the design width of the settlement joint remains unaffected after construction can, to a certain extent, reduce the pressure generated during building settlement, allowing stress within the building to be transferred to a safe location. For formwork construction of shear walls located inside settlement joints, a common method is to use wooden formwork on both sides of the settlement joint and remove the formwork inside the joint after the concrete has been formed. However, due to the low overall rigidity of the wooden formwork, common quality problems such as bulging, grout leakage, and misalignment are prone to occur during concrete pouring. Therefore, proposing a new type of formwork for pouring shear walls is of great significance for improving construction efficiency.

[0003] To address the aforementioned technical issues, Chinese utility model patent CN212224614U provides a detachable integral large template for settlement joints in high-rise residential buildings. It includes two symmetrically arranged grooves along the edge of the settlement joint floor slab, with threaded steel bars installed between them. Two symmetrically arranged settlement joint template assemblies are mounted on the threaded steel bars, with the two sets of template assemblies positioned on opposite sides of the settlement joint. Each template assembly includes an inner template and an outer template, with evenly distributed holes symmetrically arranged on both sides. Screws are inserted into the holes. A row of vertical steel reinforcement sub-ribs is provided on the outer template, with hooks at the upper ends of the sub-ribs, which are then hung on the outer template via these hooks. In addition, Chinese invention patent CN113187220A discloses a method for erecting and dismantling formwork for concrete shear walls on both sides of a settlement joint. This method involves simultaneously erecting outer steel formwork for two shear walls on both sides of the settlement joint, and installing transverse support rods in the settlement joint between the two steel formworks. Tie bolts are installed on the two outer steel formworks, passing through elongated holes. Wooden formwork is erected on the inner side of the two shear walls. Nuts are welded to one end of the tie bolts. Tie bolts are installed between the inner wooden formwork and the outer steel formwork. One end of the tie bolt with the welded nut is passed through the elongated hole on the outer steel formwork, rotated 90 degrees, and inserted into the settlement joint below. This pin is inserted into the welded nut extending to the outside of the outer steel formwork, thus fixing the outer end of the tie bolt.

[0004] The above-mentioned patented technology uses steel materials to form casting templates, which solves the problem of insufficient rigidity of wooden templates. However, the following technical problems still exist: (1) Two sets of grooves need to be set at the edge of the settlement joint floor slab, which reduces the local slab thickness and is not conducive to the strength of the main structure; (2) Since the horizontal support rod in the middle is an angle steel, the steel templates on both sides can only be removed from the horizontal direction, which is not conducive to the later removal of the steel templates and the turnover of the steel templates to the next floor; (3) Since the settlement joint width required by different construction environments is different, the thickness of the templates in the above-mentioned patented technology is relatively fixed and not easy to adjust. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a casting formwork system and construction method for settlement joint shear walls in high-rise buildings. The inner formwork, composed of steel plate components, is hoisted to the construction site and placed between the settlement joints. A vertical support mechanism provides support and positioning. A thickness adjustment mechanism automatically calibrates the spacing of the inner formwork based on the gap distance of the settlement joint. A thickness positioning mechanism 3 then precisely positions and locks the thickness of the inner formwork. Concrete is poured between the inner and outer formwork to form the wall, thus forming the wall. This invention achieves adaptive adjustment and precision control of the settlement joint shear wall formwork in high-rise buildings, solving a series of problems such as low construction precision and poor scalability of traditional wooden settlement joint formwork.

[0006] To achieve the above objectives, according to one aspect of the present invention, a casting formwork system for settlement joint shear walls in high-rise buildings is provided, comprising:

[0007] As a steel plate assembly for the inner side of the casting cavity;

[0008] A thickness adjustment mechanism for adjusting the thickness of the inner template composed of the steel plate assembly includes a left connecting rod and a right connecting rod disposed between the steel plate assemblies, slide grooves symmetrically disposed at both ends of the left connecting rod and the right connecting rod, and a first connecting rod and a second connecting rod that are slidably connected to the left and right slide grooves respectively by a slider. The first connecting rod and the second connecting rod are respectively connected to a rotating connecting shaft.

[0009] A thickness positioning mechanism used to prevent the thickness adjustment mechanism from retracting under pressure;

[0010] The outer formwork is used to form the outer side of the pouring cavity. The inner formwork composed of the steel plate components is hoisted to the construction site and placed between the settlement joints. Vertical positioning is achieved through a vertical support mechanism. According to the gap distance of the settlement joint, the first connecting rod and the second connecting rod are driven to move around the rotating connecting shaft along the corresponding slide groove, thereby driving the left connecting rod and the right connecting rod to move to adjust the distance between the steel plates on both sides. Then, the thickness positioning mechanism is used to accurately position and lock the thickness of the inner formwork laterally. After pouring concrete between the inner formwork and the outer formwork to form the wall, the wall is formed, realizing the adaptive adjustment and precision control of the shear wall formwork of the settlement joint of the high-rise building.

[0011] Furthermore, the steel plate assembly includes a steel plate;

[0012] Reinforcing ribs are provided on the steel plate to enhance its strength;

[0013] And a steel hook located on top of the steel plate for hoisting.

[0014] Furthermore, the steel plate assembly includes uniformly distributed sleeve positioning holes that penetrate the steel plate;

[0015] Snap-fit ​​slots for snap-fit ​​support.

[0016] Furthermore, the thickness positioning mechanism is fixedly mounted on the upper and lower ends of the steel plate, including via a first telescopic device.

[0017] Furthermore, the thickness positioning mechanism includes a telescopic rod that passes through the first telescopic device.

[0018] Furthermore, one end of the telescopic rod is rotatably connected to a steel plate via a pivot, and the other end is in contact with a supporting steel plate.

[0019] Furthermore, the vertical support mechanism includes a connecting angle bracket that is snapped into the snap-fit ​​slot by a snap-fit ​​angle.

[0020] Furthermore, the vertical support mechanism includes a support frame connected to the lower part of the connecting bracket by connecting bolts.

[0021] Furthermore, the support frame includes a first support rod with telescopic and locking functions;

[0022] A second telescopic device is provided on the first support rod;

[0023] A third support rod and a fourth support rod are respectively connected to both ends of the first support rod. A second support rod is provided between the fourth support rod and the third support rod, and the bottom end of the second support rod is rotatably connected to the third support rod through a rotating shaft.

[0024] According to a second aspect of the present invention, a method for constructing a casting formwork for a settlement joint shear wall in a high-rise building is provided, comprising the following steps:

[0025] S100: The steel plate assembly is hoisted parallel into the settlement joint of the high-rise building using hoisting equipment. The snap-fit ​​corner is inserted into the snap-fit ​​groove, and the steel plate assembly is vertically and accurately positioned by connecting it with the internal threaded hole at the top of the fourth support rod on the support frame through connecting bolts.

[0026] S200: Measure the size of settlement joints in high-rise buildings and control the drive mechanism to drive the first and second connecting rods to move around the rotating connecting shaft along the corresponding slide groove, thereby driving the left and right connecting rods to move and adjust the distance between the steel plates on both sides;

[0027] S300: When the steel plate assembly moves to the corresponding settlement joint width, the first telescopic device drives the telescopic rod to automatically extend and retract to the corresponding length and lock, thereby achieving precise positioning of the settlement joint template width;

[0028] S400: Erect the outer template in a suitable position, insert the connecting sleeve into the insertion hole on the side plate and through it into the sleeve positioning hole to fix the steel plate and the side plate together.

[0029] S500: Concrete is poured into the casting cavity formed between the outer formwork and the steel plate to form a shear wall. After the concrete in the casting cavity has solidified, the formwork device is lifted out again using hoisting equipment. The above steps are repeated to continue the pouring construction of the shear wall at the settlement joint of the upper building.

[0030] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0031] 1. The system of the present invention involves hoisting an inner formwork composed of steel plate components to the construction site and placing it between settlement joints. A vertical support mechanism is used for support and positioning. The thickness adjustment mechanism is driven according to the gap distance of the settlement joint to automatically calibrate the spacing of the inner formwork. Then, a thickness positioning mechanism 3 precisely positions and locks the thickness of the inner formwork. After pouring concrete between the inner and outer formwork to form the wall, a wall is formed. This system achieves adaptive adjustment and precision control of the shear wall formwork for settlement joints in high-rise buildings, solving a series of problems such as low construction precision and poor scalability of traditional wooden formwork for settlement joints in buildings.

[0032] 2. The system of the present invention, by combining a linkage mechanism and a slider mechanism, realizes the free opening and closing of two steel plates, thereby effectively achieving the technical effect of adjustable template thickness. At the same time, it uses adjustable rods to control the retraction action after thickness adjustment, thereby solving the technical problem that the settlement joint thickness required for different construction environments is different and it is inconvenient to adjust during use.

[0033] 3. In the system of the present invention, when it is necessary to adjust the spacing between the steel plate components, the first connecting rod and the second connecting rod are first driven to move around the rotating connecting shaft along the corresponding slide groove, thereby driving the left connecting rod and the right connecting rod to move to realize the adjustment of the spacing between the steel plates on both sides. The distance of the slide groove can be designed according to the requirements of the settlement joint of high-rise buildings to ensure that it has a large adjustment range to adapt to the width adjustment requirements of settlement joints of different high-rise buildings, greatly improving the adaptability and reusability of the system.

[0034] 4. In the system of the present invention, when the steel plate assembly moves to the corresponding settlement joint width, the first telescopic device drives the telescopic rod to automatically extend and retract to the corresponding length and lock it, thereby achieving precise positioning of the settlement joint template width.

[0035] 5. In the system of the present invention, when all the support frames under the two steel plates are installed, the hoisting equipment can be released, so that the support frames contact the horizontal support plane, thereby achieving precise vertical positioning of the steel plate assembly. In conjunction with the thickness adjustment mechanism and the thickness positioning mechanism, precise lateral positioning of the steel plate assembly is achieved, thereby ensuring that the template accuracy of the entire settlement joint meets the requirements of high-rise buildings and improving the structural reliability and stability of the settlement joint of high-rise buildings. Attached Figure Description

[0036] Figure 1 This is a schematic elevation view of the overall installation of a casting formwork system for settlement joint shear walls in high-rise buildings, according to an embodiment of the present invention.

[0037] Figure 2 This is a schematic diagram of the overall casting elevation of a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0038] Figure 3 This is a top view schematic diagram of the overall casting process of a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of a steel plate structure for a casting formwork system for settlement joint shear walls in high-rise buildings, according to an embodiment of the present invention.

[0040] Figure 5 This is a schematic diagram of the steel plate installation structure of a casting formwork system for settlement joint shear walls in high-rise buildings, according to an embodiment of the present invention.

[0041] Figure 6 This is a schematic diagram of the installation of a vertical support frame for a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0042] Figure 7 This is a top view schematic diagram of a vertical support frame for a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0043] Figure 8 This is a schematic diagram of the thickness adjustment mechanism of a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0044] Figure 9 This is a schematic diagram of the compression of a formwork thickness adjustment mechanism for a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0045] Figure 10 This is a schematic diagram of the thickness positioning structure of a casting formwork system for a settlement joint shear wall in a high-rise building, according to an embodiment of the present invention.

[0046] Figure 11 This is a flowchart illustrating a casting formwork system for settlement joint shear walls in high-rise buildings and its usage method, as an embodiment of the present invention.

[0047] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-steel plate assembly, 101-steel plate, 102-steel hook, 103-snap slot, 104-sleeve positioning hole, 105-reinforcing rib, 2-thickness adjustment mechanism, 201-right connecting rod, 202-slide groove, 203-adjusting slider, 204-first connecting rod, 205-second connecting rod, 206-rotating connecting shaft, 207-fixed rotating shaft, 208-left connecting rod, 3-thickness positioning mechanism 301-Telescopic rod, 302-First telescopic device, 303-Free end of rod, 4-Vertical support mechanism, 400-Support frame, 401-First support rod, 402-Second telescopic device, 403-Second support rod, 404-Third support rod, 405-Fourth support rod, 410-Connecting angle bracket, 411-Snap-fit ​​angle bracket, 412-Connecting bolt, 5-Vertical indicator, 6-Outer template, 601-Rivet, 602-Connecting sleeve, 603-Side plate, 7-Wall. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0049] like Figures 1-10 As shown in the embodiment of the present invention, a casting formwork system for settlement joint shear walls in high-rise buildings is provided, comprising: a steel plate assembly 1 serving as the inner side of the casting cavity; a thickness adjustment mechanism 2 for adjusting the thickness of the formwork composed of the steel plate assembly 1; a thickness positioning mechanism 3 for preventing the thickness adjustment mechanism 2 from retracting under pressure; a vertical support mechanism 4 for vertically supporting the steel plate assembly 1; and an outer formwork 6 for forming the outer side of the casting cavity. The inner formwork composed of the steel plate assembly 1 is hoisted to the construction site and placed between the settlement joints. Support and positioning are achieved by the vertical support mechanism 4. The thickness adjustment mechanism 2 is driven to automatically calibrate the spacing of the inner formwork according to the gap distance of the settlement joint. Then, the thickness positioning mechanism 3 precisely positions and locks the thickness of the inner formwork. After pouring concrete between the inner and outer formwork 6 to form the wall, the wall 7 is formed. This system achieves adaptive adjustment and precision control of the formwork for settlement joint shear walls in high-rise buildings, solving a series of problems such as low construction precision and poor scalability of traditional wooden formwork for settlement joints.

[0050] like Figures 1-4As shown, in an embodiment of the present invention, the steel plate assembly 1 includes a steel plate 101, reinforcing ribs 105 disposed on the steel plate 101 to enhance the strength of the steel plate, sleeve positioning holes 104 evenly distributed and penetrating the steel plate 101 and used to pass through the connecting sleeve 602, and snap-fit ​​grooves 103 for snap-fit ​​support.

[0051] like Figure 8 and Figure 9 As shown, the thickness adjustment mechanism 2 is located between two steel plates 101. The thickness adjustment mechanism 2 includes a left connecting rod 208 and a right connecting rod 201 respectively fixedly connected to the left and right steel plates 101; slide grooves 202 symmetrically arranged near the upper and lower ends of the left connecting rod 208 and the right connecting rod 201; a first connecting rod 204 and a second connecting rod 205 slidably connected to the left and right slide grooves 202 respectively via an adjusting slider 203; and a rotating connecting shaft 206 rotatably connecting the first connecting rod 204 and the second connecting rod 205. The other ends of the first connecting rod 204 and the second connecting rod 205 are rotatably connected to the left connecting rod 208 and the right connecting rod 201 via a fixed rotating shaft 207. When it is necessary to adjust the spacing between the steel plate assemblies 1, the first connecting rod 204 and the second connecting rod 205 are first driven to move around the rotating connecting shaft 206 along the corresponding slide grooves 202, thereby driving the left connecting rod 208 and the right connecting rod 201 to move and adjust the spacing between the two steel plates 101. The drive mechanism can be a motor or any other form of power source. It outputs force through its output shaft to compress or pull the first connecting rod 204 and the second connecting rod 205, driving their movement. The aforementioned drive mechanism is a conventional technique in this field and will not be elaborated upon further. The distance of the chute 202 can be designed according to the requirements of settlement joints in high-rise buildings, ensuring a large adjustment range to adapt to the width adjustment requirements of settlement joints in different high-rise buildings, greatly improving the system's adaptability and reusability.

[0052] like Figure 10 As shown, in an embodiment of the present invention, the thickness positioning mechanism 3 is fixedly disposed at the upper and lower ends of the steel plate 101, including a telescopic rod 301 that has a telescopic and locking function through a first telescopic device 302. One end of the telescopic rod 301 is rotatably connected to one steel plate 101 through a rotating shaft, and the other end is in support contact with another steel plate 101. When the steel plate assembly 1 moves to the corresponding settlement joint width, the first telescopic device 302 drives the telescopic rod 301 to automatically extend and retract to the corresponding length and lock, thereby achieving precise positioning of the settlement joint template width.

[0053] like Figure 6 and Figure 7As shown, in this embodiment of the invention, the vertical support mechanism 4 includes a connecting angle bracket 410 that is snapped into the snap-fit ​​slot 103 by a snap-fit ​​angle bracket 411 and a support frame 400 that is connected to the bottom of the connecting angle bracket 410 by a connecting bolt 412. The support frame 400 includes a first support rod 401, a second support rod 403 and a fourth support rod 405 respectively provided in the middle of the corresponding rods by a second telescopic device 402, which enables the rods to have telescopic and locking functions, and a third support rod 404 provided in the horizontal direction and in support contact with the ground. The lower ends of the first support rod 401 and the second support rod 403 are rotatably connected to the third support rod 404 by a rotating shaft. After the steel plate 101 is hoisted into the settlement joint, the snap-fit ​​angle 411 on the connecting angle bracket 410 is inserted into the snap-fit ​​groove 103, and then threadedly connected to the upper end of the threaded hole of the fourth support rod 405 on the support frame 400 through the connecting bolt 412. When all the support frames 400 under the two steel plates 101 are installed, the hoisting equipment can be released, so that the support frame 400 contacts the horizontal support plane, realizing the vertical precise positioning of the steel plate assembly 1. With the cooperation of the thickness adjustment mechanism 2 and the thickness positioning mechanism 3, the horizontal precise positioning of the steel plate assembly 1 is realized, thereby ensuring that the template accuracy of the entire settlement joint meets the requirements of high-rise buildings and improving the structural reliability and stability of the settlement joint of high-rise buildings.

[0054] The outer template 6 used to form the outer side of the casting cavity includes a side plate 603 with insertion holes that are evenly arranged to correspond to the positions of the sleeve positioning holes 104 on the steel plate assembly 1, and a connecting sleeve 602 inserted into the insertion holes and passing through the sleeve positioning holes 104 to fix the steel plate 101 and the side plate 603 together. One end of the connecting sleeve 602 is fixed to the outside of the side plate 603 by a rivet 601.

[0055] In this embodiment of the invention, by combining a linkage mechanism with a slider mechanism, the two steel plates can be opened and closed freely, thereby effectively achieving the technical effect of adjustable template thickness. At the same time, by combining it with an adjustable rod, the retraction action after thickness adjustment is controlled, thereby solving the technical problem that the settlement joint thickness required to be set varies due to different construction environments, making it inconvenient to adjust during use.

[0056] like Figure 2 As shown, in this embodiment of the invention, the steel plate 101 includes:

[0057] A vertical indicator 5 is fixedly installed on its end face to indicate the current verticality status of the steel plate 101. This effectively solves the technical problem that if the steel plate 101 is tilted during installation, it will cause a significant weakening of the shear wall strength. At the same time, it saves workers from frequently visually inspecting whether it is vertical, thereby improving work efficiency.

[0058] In this embodiment of the invention, the following dimensional scheme is proposed:

[0059] The steel plate 101 has a thickness of 1.5~3mm, which can be 2mm.

[0060] The diameter of the sleeve positioning hole 104 is 2~3mm, which can be 2.2mm.

[0061] The reinforcing rib 105 has a thickness of 3~5mm, which can be 4mm, and a width of 40~60mm, which can be 50mm.

[0062] In this embodiment of the invention, a method for using a casting formwork system for settlement joint shear walls in high-rise buildings is proposed, comprising the following steps:

[0063] S100: Using a hoisting device with a steel hook 102, two steel plates 101 are hoisted parallel into the settlement joint. At the same time, the snap-fit ​​angle 411 on the connecting angle bracket 410 is inserted into the snap-fit ​​groove 103 and threadedly connected to the upper end of the threaded hole of the fourth support rod 405 on the support frame 400 through the connecting bolt 412. When all the support frames 400 under the two steel plates 101 are installed, the hoisting device can be released so that the support frame 400 contacts the horizontal support plane.

[0064] S200: At this time, the two steel plates 101 are horizontally pushed and adjusted to achieve the required settlement joint thickness. Then, the thickness positioning mechanism 3 is adjusted so that the free end 303 of the rod presses against the other side of the steel plate 101, thereby ensuring that the two steel plates will not retract and ensuring the width between them.

[0065] S300: Erect the outer template 6 in a suitable position, insert the connecting sleeve 602 into the insertion hole on the side plate 603 and through it into the sleeve positioning hole 104, so as to fix the steel plate 101 and the side plate 603 as a whole.

[0066] S400: Concrete is poured into the casting cavity formed between the outer formwork 6 and the steel plate 101 to form a shear wall;

[0067] S500: After the concrete in the pouring cavity has set, use hoisting equipment to lift the formwork again and repeat the above steps to continue construction on the upper building.

[0068] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A casting formwork system for settlement joint shear walls in high-rise buildings, characterized in that, include: The steel plate assembly (1) serves as the inner side of the casting cavity; the steel plate assembly (1) includes a steel plate (101), sleeve positioning holes (104) evenly distributed and penetrating the steel plate (101), and snap-fit ​​grooves (103) for snap-fit ​​support. A thickness adjustment mechanism (2) for adjusting the thickness of the inner template composed of the steel plate assembly (1) includes a left connecting rod (208) and a right connecting rod (201) disposed between the steel plate assemblies (1), a slide groove (202) symmetrically disposed at both ends of the left connecting rod (208) and the right connecting rod (201), a first connecting rod (204) and a second connecting rod (205) slidably connected to the left and right slide grooves (202) respectively by a slider (203), and the first connecting rod (204) and the second connecting rod (205) are respectively connected to the rotating connecting shaft (206); A thickness positioning mechanism (3) is used to prevent the thickness adjustment mechanism (2) from being retracted under pressure; the thickness positioning mechanism (3) includes a telescopic rod (301) driven by a first telescopic device (302), one end of the telescopic rod (301) is rotatably connected to a steel plate (101) through a rotating shaft, and the other end is in support contact with another steel plate (101); A vertical support mechanism (4) includes a connecting angle bracket (410) that is snapped into a snap-fit ​​groove (103) by a snap-fit ​​angle bracket (411); the vertical support mechanism (4) includes a support frame (400) connected to the connecting angle bracket (410) by a connecting bolt (412); the support frame (400) includes a first support rod (401) with telescopic and locking functions; a second telescopic device (402) provided on the first support rod (401); a third support rod (404) and a fourth support rod (405) respectively connected to both ends of the first support rod (401); a second support rod (403) is provided between the fourth support rod (405) and the third support rod (404), and the bottom end of the second support rod (403) is rotatably connected to the third support rod (404) by a rotating shaft; And the outer template (6) used to form the outer side of the pouring cavity, the inner template composed of the steel plate assembly (1) is hoisted to the construction site and placed between the settlement joints. Vertical positioning is achieved through the vertical support mechanism (4). According to the gap distance of the settlement joint, the first connecting rod (204) and the second connecting rod (205) are driven to move around the rotating connecting shaft (206) along the corresponding slide (202), thereby driving the left connecting rod (208) and the right connecting rod (201) to move to achieve the adjustment of the distance between the two steel plates (101). Then, the thickness positioning mechanism (3) is used to achieve precise horizontal positioning and locking of the inner template thickness. After pouring concrete between the inner template and the outer template (6) to form the wall, the wall (7) is formed, realizing the adaptive adjustment and precision control of the settlement joint shear wall template of the high-rise building.

2. The casting formwork system for settlement joint shear walls in high-rise buildings according to claim 1, characterized in that, The steel plate assembly (1) also includes reinforcing ribs (105) disposed on the steel plate (101) to enhance the strength of the steel plate. And a steel hook (102) provided on top of the steel plate (101) for hoisting.

3. A method for constructing a casting formwork for a settlement joint shear wall in a high-rise building, comprising using a casting formwork system for a settlement joint shear wall in a high-rise building as described in claim 1 or 2, characterized in that... Includes the following steps: S100: The steel plate assembly is hoisted parallel into the settlement joint of the high-rise building using hoisting equipment. The snap-fit ​​corner is inserted into the snap-fit ​​groove, and the steel plate assembly is vertically and accurately positioned by connecting it with the internal threaded hole at the top of the fourth support rod on the support frame through connecting bolts. S200: Measure the size of settlement joints in high-rise buildings and control the drive mechanism to drive the first and second connecting rods to move around the rotating connecting shaft along the corresponding slide groove, thereby driving the left and right connecting rods to move and adjust the distance between the steel plates on both sides; S300: When the steel plate assembly moves to the corresponding settlement joint width, the first telescopic device drives the telescopic rod to automatically extend and retract to the corresponding length and lock, thereby achieving precise positioning of the settlement joint template width; S400: Erect the outer template in a suitable position, insert the connecting sleeve into the insertion hole on the outer template and through it into the sleeve positioning hole to fix the steel plate and the outer template as one piece; S500: Concrete is poured into the casting cavity formed between the outer formwork and the steel plate to form a shear wall. After the concrete in the casting cavity has solidified, the formwork device is lifted out again using hoisting equipment. The above steps are repeated to continue the construction of the shear wall at the settlement joint of the upper building.

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