Construction method for wall formwork erecting of narrow expansion joint of high-rise building
By using a steel-wood hybrid formwork system and a mechanical transmission structure, the problem of formwork support at narrow expansion joints in high-rise buildings has been solved, achieving stable installation and precise positioning, improving construction efficiency and quality, adapting to the needs of different expansion joint sizes, and ensuring structural safety and reliability.
Patent Information
- Application Number
- CN202511272936.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2025-11-18
AI Technical Summary
In existing technologies, the formwork operation at narrow expansion joints in high-rise buildings is difficult. Traditional methods cannot provide effective support and are prone to causing steel bar misalignment, foam debris residue, and cross-sectional dimension deviation, which affects construction quality and efficiency.
A steel-wood hybrid formwork system is adopted, which combines anti-slip tie bolts and steel reinforcement support. Through a mechanical transmission structure driven by a triangular frame, telescopic plate and dual-axis motor, the formwork can be stably installed and accurately positioned to adapt to different expansion joint sizes.
It improves construction efficiency and quality, ensures the stability of the formwork, reduces the difficulty and error of manual operation, has strong adaptability, is suitable for stable formwork of narrow expansion joints in high-rise buildings, and enhances structural safety and durability.
Smart Images
Figure CN120968233A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of expansion joint formwork, in particular to a construction method for high-rise building narrow expansion joint wall formwork. BACKGROUND
[0002] Expansion joint formwork technology is a key link to ensure the safety and functional integrity of the structure in building construction. This technology solves the problems of narrow space, difficulty in reinforcement and concrete pouring quality assurance at expansion joints through scientific design of formwork system. Traditional methods often use extruded board filling, but this can easily lead to problems such as reinforcement deviation, foam debris residue and cross-sectional size deviation. Modern technology innovatively uses a steel-wood hybrid formwork system, with a large steel form as the core support, combined with anti-slip tension bolts and steel load-bearing supports, to achieve stable installation and precise positioning of the formwork. The large steel form has high integrity and can be quickly installed and removed through hoisting operations. It is reinforced with indoor side ordinary formwork to form a closed construction space, effectively preventing slurry leakage and form expansion. At the same time, the formwork surface is coated with a release agent and the bottom is sealed with sponge strips to ensure the quality of concrete molding. This technology not only shortens the construction period, but also reduces costs through material turnover. It is suitable for expansion joint construction of high-rise buildings, bridges and other projects, significantly improving the durability and safety of the structure.
[0003] However, the conventional shear wall formwork in existing technology uses a wood formwork and steel pipe tension bolt system, which requires a reserved operating space between the formworks for bolt tightening, formwork adjustment and other operations. When the expansion joint is narrow, the traditional system cannot be deployed, increasing the construction difficulty for the operators. Therefore, there is a need for a construction method for high-rise building narrow expansion joint wall formwork. SUMMARY
[0004] The present application aims to provide a construction method for high-rise building narrow expansion joint wall formwork to solve the existing problems raised in the background.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a construction method for high-rise building narrow expansion joint wall formwork, comprising a shear wall, a reinforcing assembly is arranged on one side of the shear wall, a supporting assembly is arranged on one side of the reinforcing assembly, an expansion assembly is arranged on the top of the supporting assembly, the reinforcing assembly comprises a wall formwork, and the wall formwork is installed on one side of the shear wall, the wall formwork is fixedly connected with the shear wall through fixing bolts and nuts, the supporting assembly comprises a tripod, the tripod is fixed to one side of the wall formwork through expansion bolts, a first expansion plate is arranged in the interior of the tripod, the tripod is fixed with the first expansion plate through first bolts, a second expansion plate is arranged in the interior of the tripod, the tripod is fixed with the second expansion plate through second bolts, and a third bolt is arranged in the interior of the tripod. The telescopic assembly comprises a mounting frame, which is mounted on the top of the tripod, the mounting frame is fixed with the mounting frame through the third bolt, the mounting frame is provided with a machine box, the machine box is provided with a double-shaft motor, the output end of the double-shaft motor is fixedly connected with a rotating rod through a shaft coupling, one end of the rotating rod is fixedly connected with a first bevel gear, the outer wall of the first bevel gear is meshedly connected with a second bevel gear, the inner portion of the second bevel gear is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a driving gear, the outer wall of the driving gear is meshedly connected with a driven gear, the inner portion of the driven gear is fixedly connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is threadedly connected with a threaded sleeve, one side of the threaded sleeve is hingedly connected with a movable rod, one end of the movable rod is hingedly connected with a pressing plate, and the pressing plate abuts against the outer side of the wall formwork.
[0006] Preferably, the wall formwork is made of wood, has a smooth surface, and has sufficient strength and rigidity to withstand lateral pressure during construction.
[0007] Preferably, the tripod is a triangular steel structure, the length of each side is determined according to actual construction requirements, and the welding position of the tripod adopts full welding process, and the welding quality meets relevant standards to ensure stability.
[0008] Preferably, the tripod and the first telescopic plate constitute an adjusting structure through the first bolt, one end of the first bolt penetrates the tripod and the first telescopic plate and is connected with a nut, and the first telescopic plate and the second telescopic plate are provided with scale marks to accurately adjust the support length and meet the construction requirements of wall expansion joints of different sizes.
[0009] Preferably, the double-shaft motor and the first bevel gear constitute a rotating structure through the rotating rod, and the rotating rod is arranged between the double-shaft motor and the first bevel gear, the double-shaft motor is a reversible motor, and the rotating speed thereof can be adjusted to meet the requirements of the position movement of the pressing plate in different construction stages.
[0010] Preferably, the bidirectional screw rod and the threaded sleeve constitute a threaded structure, and the threads on the two ends of the bidirectional screw rod are opposite.
[0011] Preferably, the threaded sleeve and the pressing plate constitute a movable structure through the movable rod, and the two ends of the movable rod are hingedly connected with the threaded sleeve and the pressing plate respectively, the pressing plate is made of wood, and the surface thereof is provided with anti-skid lines to increase the friction with the outer side of the wall formwork and prevent sliding during pressing.
[0012] Preferably, the construction method is as follows: Step one, the wall formwork is assembled at the predetermined position of the shear wall according to the design requirements, the wall formwork provides a forming space for concrete pouring, and ensures that the shape and size of the shear wall meet the design standards; The fixing bolt passes through the pre-set hole on the wall formwork, and the wall formwork is preliminarily positioned, a nut is installed on the other end of the fixing bolt, the wall formwork is tightly attached by tightening the nut, and a stable pouring cavity is formed; Step two, place the tripod in the appropriate position, use expansion bolts to firmly fix the bottom of the tripod on the wall formwork structure, the tripod as the basic component of the support system, according to the spacing between the expansion joints, adjust the length of the first expansion plate and the second expansion plate; By rotating the first bolt and the second bolt, the expansion amount of the expansion plate can be accurately controlled, so that the size of the tripod can be adjusted according to the size of the expansion joint, and the whole support system can be ensured to form a stable whole; Step three, install the mounting frame on the top of the tripod by expansion bolts, ensure that it can provide stable support for the whole support system, according to the construction needs, control the forward and reverse rotation of the double-shaft motor, adjust the position of the threaded sleeve, and then drive the movable rod and the extrusion plate to move, the extrusion plate can press against the wall formwork, realize accurate adjustment and dynamic control of the supporting force, and adapt to the needs of different construction stages and load changes.
[0013] Compared with the prior art, the construction method for the wall formwork of the narrow expansion joint of the high-rise building has the beneficial effects that, (1) by first installing the wall formwork on both sides of the shear wall steel frame and fastening with fixing bolts and nuts, the stability of the formwork can be ensured, a solid foundation is provided for subsequent construction, the tripod is fixed on one side of the formwork by expansion bolts, the overall stability can be enhanced, the first expansion plate and the second expansion plate can be flexibly adjusted in length according to the size of the expansion joint, different construction needs can be met, the adaptability is strong, after adjustment, the position is fixed with bolts to ensure the accurate position and firm connection of the expansion plate, this installation method not only improves the construction efficiency, but also effectively guarantees the construction quality, so that the shear wall structure is more safe and reliable; (2) by hoisting the expansion assembly into the expansion joint and fixing, after starting the double-shaft motor, through a series of gear and screw transmission, the extrusion plate can be accurately and efficiently driven to move, this mechanical transmission structure is stable and reliable, and can ensure that the extrusion plate uniformly and powerfully supports and reinforces the wall formwork, effectively prevents the deformation or displacement of the formwork, greatly improves the construction precision and quality, at the same time, the whole operation process is highly automated, reduces the difficulty and error of manual operation, saves the construction time and labor cost, and the device has strong adaptability and can be flexibly adjusted according to different expansion joint conditions, so as to guarantee the smooth construction and stability of the structure. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The figure is a schematic diagram of the main structure of the application; Figure 2 The figure is a schematic diagram of the front structure of the application; Figure 3 Figure is a schematic diagram of the shear wall and wall formwork structure of the present application; Figure 4 Figure is a schematic diagram of the telescopic assembly structure of the present application; Figure 5 Figure is a schematic diagram of the driving gear and driven gear structure of the present application; Figure 6 Figure is a schematic diagram of the mounting frame and extrusion plate structure of the present application; Figure 7 Figure is a schematic diagram of the mounting frame and extrusion plate structure of the present application; Figure 6 Figure is a schematic diagram of the mounting frame and extrusion plate structure of the present application;
[0015] Figure 1, shear wall; 2, reinforcing assembly; 201, wall formwork; 202, fixing bolt; 203, nut; 3, support assembly; 301, tripod; 302, expansion bolt; 303, first telescopic plate; 304, first bolt; 305, second bolt; 306, second telescopic plate; 307, third bolt; 4, telescopic assembly; 401, mounting frame; 402, machine box; 403, double-shaft motor; 404, rotating rod; 405, first bevel gear; 406, second bevel gear; 407, connecting rod; 408, driving gear; 409, driven gear; 410, bidirectional screw rod; 411, threaded sleeve; 412, movable rod; 413, extrusion plate. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. Figure 1 - the drawings Figure 7 The present application will be described in further detail.
[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0018] The embodiments of the present application provide a construction method for high-rise building narrow telescopic joint wall formwork, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, including shear wall 1, one side of shear wall 1 is provided with reinforcing assembly 2, one side of reinforcing assembly 2 is provided with support assembly 3, the top of support assembly 3 is provided with telescopic assembly 4, reinforcing assembly 2 includes wall formwork 201, wall formwork 201 is assembled at the predetermined position of shear wall 1 according to the design requirements, the role of wall formwork 201 is to provide a forming space for concrete pouring, to ensure that the shape and size of shear wall 1 meet the design standards, and wall formwork 201 is installed on one side of shear wall 1, wall formwork 201 is fixedly connected with shear wall 1 through fixing bolts 202 and nuts 203, fixing bolts 202 pass through the pre-designed holes of wall formwork 201 to preliminarily position, nuts 203 are installed on the other end of fixing bolts 202, wall formwork 201 is tightly attached by tightening nuts 203, forming a stable pouring cavity, support assembly 3 includes tripod 301, tripod 301 is fixed on one side of wall formwork 201 through expansion bolts 302, first expansion plate 303 is arranged in the interior of tripod 301, tripod 301 is placed at the appropriate position, expansion bolts 302 are used to firmly fix the bottom of tripod 301 on the structure of wall formwork 201, tripod 301 serves as the basic component of the support system, according to the spacing between expansion joints, the length of first expansion plate 303 and second expansion plate 306 is adjusted, first expansion plate 303 is fixed with tripod 301 through first bolts 304, second expansion plate 306 is arranged in the interior of tripod 301, second expansion plate 306 is fixed with tripod 301 through second bolts 305, third bolts 307 are arranged in the interior of tripod 301, the expansion amount of expansion plate can be accurately controlled by rotating first bolts 304 and second bolts 305, so that the size of tripod 301 can be accurately adjusted according to the size of expansion joint, to ensure that the entire support system forms a stable whole.
[0019] Further as shown in Figure 2 and Figure 3 wall formwork 201 is made of wood, the surface of which is flat and has sufficient strength and rigidity to withstand lateral pressure during construction, the wood wall formwork 201 is arranged to facilitate the installation of the operator and improve the lateral pressure of the concrete and reduce the occurrence of material leakage.
[0020] Further as shown in Figure 2 and Figure 7 tripod 301 is a triangular steel structure, the length of each side of which is determined according to actual construction requirements, and the welding position of tripod 301 adopts full welding process, and the welding quality meets the relevant standards to ensure its stability, the steel tripod 301 is arranged to improve the use stability of tripod 301 and improve the support bearing capacity of tripod 301.
[0021] Further as shown in Figure 7As shown, the tripod 301 forms an adjusting structure with the first telescopic plate 303 through the first bolt 304, one end of the first bolt 304 penetrates the tripod 301 and the first telescopic plate 303 and is connected with a nut, the first telescopic plate 303 and the second telescopic plate 306 are provided with scale marks, the first bolt 304 can be arranged to fix the adjusted first telescopic plate 303, so that the support length is accurately adjusted, and the construction requirements of the expansion joints of walls of different sizes are met.
[0022] In the further preferred embodiments of the present application, as shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , the telescopic assembly 4 comprises a mounting frame 401 mounted on the top of the tripod 301, the tripod 301 is fixed with the mounting frame 401 through the third bolt 307, the mounting frame 401 is provided with a machine box 402, the machine box 402 is provided with a double-shaft motor 403, the output end of the double-shaft motor 403 is fixedly connected with a rotating rod 404 through a shaft coupling, one end of the rotating rod 404 is fixedly connected with a first bevel gear 405, the outer wall of the first bevel gear 405 is meshed with a second bevel gear 406, the inside of the second bevel gear 406 is fixedly connected with a connecting rod 407, the bottom of the connecting rod 407 is fixedly connected with a driving gear 408, the outer wall of the driving gear 408 is meshed with a driven gear 409, the inside of the driven gear 409 is fixedly connected with a bidirectional screw rod 410, the outer wall of the bidirectional screw rod 410 is threadedly connected with a threaded sleeve 411, one side of the threaded sleeve 411 is hingedly connected with a movable rod 412, one end of the movable rod 412 is hingedly connected with a pressing plate 413, the pressing plate 413 abuts against the outside of the wall formwork 201, the mounting frame 401 is mounted on the top of the tripod 301 by means of the expansion bolts 302, so as to ensure that it can provide a stable support foundation for the entire support system, according to the construction needs, the position of the threaded sleeve 411 is adjusted by controlling the forward and reverse rotation of the double-shaft motor 403, thereby driving the movable rod 412 and the pressing plate 413 to move, the pressing plate 413 can abut against the wall formwork 201, and the precise adjustment and dynamic control of the support force are realized, so as to adapt to the needs of different construction stages and load changes.
[0023] Further as shown in Figure 4 and Figure 5As shown in the figure, the double-shaft motor 403 and the first bevel gear 405 constitute a rotating structure through the rotating rod 404, and the rotating rod 404 is arranged between the double-shaft motor 403 and the first bevel gear 405. The double-shaft motor 403 is a reversible motor, and its rotating speed can be adjusted. Through the double-shaft motor 403, the double-shaft motor 403 can drive the rotating rod 404 to drive the first bevel gear 405 to rotate. The driving mechanism can adjust the position of the extrusion plate 413 to adapt to the requirements of the position movement of the extrusion plate 413 in different construction stages.
[0024] Further, as shown in the figure Figure 4 and Figure 5 , the bidirectional screw rod 410 and the threaded sleeve 411 constitute a threaded structure, and the threads on the two ends of the bidirectional screw rod 410 are opposite, which strengthens the connection effect of the bidirectional screw rod 410 and the threaded sleeve 411. When the bidirectional screw rod 410 rotates, the two threaded sleeves 411 move in opposite directions, which is convenient for adjusting the distance between the two threaded sleeves 411.
[0025] Further, as shown in the figure Figure 2 , Figure 4 , Figure 5 and Figure 6 , the threaded sleeve 411 and the extrusion plate 413 constitute a movable structure through the movable rod 412, and the two ends of the movable rod 412 are respectively hinged to the threaded sleeve 411 and the extrusion plate 413. The extrusion plate 413 is made of wood material, and the surface is provided with anti-skid lines. Through the arrangement of the movable rod 412, when the threaded sleeve 411 moves, the movable rod 412 can drive the extrusion plate 413 to support the formwork, so as to increase the friction force with the outside of the wall formwork 201, and prevent sliding phenomenon in the extrusion process.
[0026] Working principle: in use, the wall formwork 201 can be installed on both sides of the reinforced concrete frame of the shear wall 1, and the wall formwork 201 is penetrated by the fixing bolt 202, and is fastened by the nut, and after preliminary installation, the tripod 301 is fixed on one side of the wall formwork 201 by the expansion bolt 302, after a plurality of tripods 301 are installed in turn, the length of the first expansion plate 303 and the second expansion plate 306 can be adjusted according to the size of the expansion joint, and after being adjusted to the appropriate position, the first bolt 304 and the second bolt 305 are fixed, at this time, the expansion assembly 4 can be hoisted into the expansion joint by the hoisting equipment, and the mounting frame 401 is fixed with the wall formwork 201 by the third bolt 307, at this time, the double-shaft motor 403 can be started to drive the first bevel gear 405 to rotate by the rotating rod 404, so that the first bevel gear 405 can drive the connecting rod 407 to rotate by the second bevel gear 406, so that the connecting rod 407 can drive the driven gear 409 to rotate by the driving gear 408, so that the driven gear 409 can drive the bidirectional screw rod 410 to rotate in the threaded sleeve 411, so that the threaded sleeve 411 can drive the movable rod 412 to push the extrusion plate 413 to move, so that the extrusion plates 413 on both sides can support and reinforce the wall formwork 201.
[0027] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.
Claims
1. A construction method for formwork of a high-rise building narrow expansion joint wall body, comprising a shear wall (1), characterized in that: The reinforcing assembly (2) is provided on one side of the shear wall (1), the supporting assembly (3) is provided on one side of the reinforcing assembly (2), the telescopic assembly (4) is provided on the top of the supporting assembly (3), the reinforcing assembly (2) comprises a wall formwork (201), and the wall formwork (201) is installed on one side of the shear wall (1); the wall formwork (201) is fixedly connected with the shear wall (1) through fixing bolts (202) and nuts (203); the supporting assembly (3) comprises a tripod (301), the tripod (301) is fixed on one side of the wall formwork (201) through expansion bolts (302), the tripod (301) is internally provided with a first telescopic plate (303), the tripod (301) is fixed with the first telescopic plate (303) through first bolts (304), the tripod (301) is internally provided with a second telescopic plate (306), the tripod (301) is fixed with the second telescopic plate (306) through second bolts (305), and the tripod (301) is internally provided with third bolts (307); The telescopic assembly (4) comprises a mounting frame (401), and the mounting frame (401) is mounted on the top of the tripod (301) and fixed with the tripod (301) through the third bolts (307); the mounting frame (401) is internally provided with a machine box (402), the machine box (402) is internally provided with a double-shaft motor (403), the output end of the double-shaft motor (403) is fixedly connected with a rotating rod (404) through a shaft coupling, one end of the rotating rod (404) is fixedly connected with a first bevel gear (405), the outer wall of the first bevel gear (405) is meshedly connected with a second bevel gear (406), the second bevel gear (406) is internally fixedly connected with a connecting rod (407), the bottom of the connecting rod (407) is fixedly connected with a driving gear (408), the outer wall of the driving gear (408) is meshedly connected with a driven gear (409), the inside of the driven gear (409) is fixedly connected with a bidirectional screw rod (410), the outer wall of the bidirectional screw rod (410) is threadedly connected with a threaded sleeve (411), one side of the threaded sleeve (411) is hingedly connected with a movable rod (412), one end of the movable rod (412) is hingedly connected with a pressing plate (413), and the pressing plate (413) abuts against the outside of the wall formwork (201).
2. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The wall formwork (201) is made of wood, has a smooth surface, and has sufficient strength and rigidity to withstand lateral pressure during construction.
3. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The tripod (301) is a triangular steel structure, the length of each side of the triangular steel structure is determined according to actual construction requirements, and the welding position of the tripod (301) adopts a full welding process, and the welding quality meets relevant standards, so that the stability of the tripod (301) is ensured.
4. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The tripod (301) is connected with the first telescopic plate (303) through the first bolt (304), one end of the first bolt (304) penetrates the tripod (301) and the first telescopic plate (303) and is connected with a nut, and the first telescopic plate (303) and the second telescopic plate (306) are provided with scale marks, so as to accurately adjust the supporting length and meet the construction requirements of the expansion joints of walls of different sizes.
5. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The double-shaft motor (403) is connected with the first bevel gear (405) through the rotating rod (404), the rotating rod (404) is arranged between the double-shaft motor (403) and the first bevel gear (405), the double-shaft motor (403) is a reversible motor, and the rotating speed of the double-shaft motor (403) can be adjusted to adapt to the requirements of the position movement of the extrusion plate (413) in different construction stages.
6. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The bidirectional screw rod (410) and the threaded sleeve (411) form a threaded structure, and the threads on the two ends of the bidirectional screw rod (410) are opposite.
7. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The threaded sleeve (411) is connected with the extrusion plate (413) through the movable rod (412), the two ends of the movable rod (412) are hingedly connected with the threaded sleeve (411) and the extrusion plate (413) respectively, the extrusion plate (413) is made of wood material, and the surface of the extrusion plate (413) is provided with anti-skid lines to increase the friction with the outside of the wall formwork (201) and prevent sliding during extrusion.
8. The construction method for formwork of high-rise building narrow telescopic joint wall according to claim 1, characterized in that: The construction method is as follows: Step one, the wall formwork (201) is assembled at the predetermined position of the shear wall (1) according to the design requirements, the wall formwork (201) provides a forming space for concrete pouring and ensures that the shape and size of the shear wall (1) meet the design standards; The fixing bolt (202) penetrates the preset hole of the wall formwork (201), the fixing bolt (202) is preliminarily positioned, the nut (203) is installed at the other end of the fixing bolt (202), the wall formwork (201) is tightly attached by tightening the nut (203), and a stable pouring cavity is formed; Step two, place the tripod (301) at a proper position, use the expansion bolt (302) to firmly fix the bottom of the tripod (301) on the wall formwork (201) structure, the tripod (301) is used as a basic component of the support system, and the lengths of the first telescopic plate (303) and the second telescopic plate (306) are adjusted according to the spacing between the expansion joints; The first bolt (304) and the second bolt (305) are rotated to accurately control the telescopic amount of the telescopic plate, so that the size of the tripod (301) can be adjusted according to the size of the expansion joint, and a stable whole is formed. Step three, install the mounting frame (401) on the top of the tripod (301) by expansion bolts (302), ensure that it can provide stable support for the entire support system, according to the construction needs, by controlling the forward and reverse rotation of the double shaft motor (403), adjust the position of the threaded sleeve (411), and then drive the movable rod (412) and the extrusion plate (413) to move, the extrusion plate (413) can press against the wall formwork (201), realize the precise adjustment and dynamic control of the support force, to adapt to the needs of different construction stages and load changes.