9400results about "Forms/shuttering/falseworks" patented technology

Systems and methods of installing a fixture into a material are provided. The fixture includes a body and a cover assembly that is removably coupled to the body and configured to move relative to the body once the body has been secured within the material. The cover assembly includes a movable component configured to aid removal of the cover assembly.

The invention discloses a dynamic deviation rectifying method and system for sliding and lifting of a concrete sliding formwork of an ultra-large special-shaped vertical shaft. The method comprises the following steps that an ultra-large special-shaped vertical shaft model is established; configuring a deflection monitoring instrument; measuring the deflection amount of the sliding mode and generating measurement data; analyzing and processing the measurement data and generating a deviation correction control signal; deviation rectifying equipment performs slip form deviation rectifying; verifying a deviation correction result; and performing real-time dynamic analysis on the measured slip form deflection data, and generating a real-time dynamic deviation correction control signal to control deviation correction equipment to complete dynamic deviation correction of the slip form. The position, the posture and the motion state of the sliding mode can be monitored in real time, then measurement data are processed, and finally a deviation rectification control signal is generated to control deviation rectification equipment, so that the dynamic real-time deviation rectification work of the deflection of the sliding mode is realized. Therefore, high-precision, high-efficiency and high-adaptability dynamic deviation correction is realized, dependence on manual operation is reduced, high construction cost is reduced, adaptability and flexibility are enhanced, and safety and reliability of construction are improved at the same time.

The invention belongs to the technical field of hydraulic creeping formwork monitoring, and particularly relates to a hydraulic creeping formwork monitoring system and a hydraulic creeping formwork monitoring method. Whether the demolding opportunity is reached or not is judged by detecting the concrete strength and environmental conditions of a poured area in the hydraulic creeping formwork pouring process; the pressure distribution of the jack is monitored when the demolding time is not reached, and the displacement and stress distribution of the template system are monitored when the demolding time is reached, so that the comprehensive monitoring of the hydraulic creeping formwork in the pouring state is effectively realized, and the pressure of the jack is pertinently adjusted by always utilizing the distribution monitoring result of the pressure of the jack in the process; the displacement risk of the formwork system in the demolding waiting process is reduced to the maximum extent, then the unloading sequence and amplitude of the jacks are dynamically adjusted through the displacement and stress distribution detection result of the formwork system when it is judged that the demolding opportunity is reached, the separation speed difference between the formwork and concrete can be reduced, and it is ensured that the unloading process is stable and uniform.

The present invention relates to the technical field of construction of caissons. Disclosed are an operation platform in a caisson and a mounting method for a shaft wall formwork. The caisson platform consists of a platform base plate, a vertical rod assembly, a first horizontal support assembly and a second horizontal support assembly, wherein the rod assembly consists of a plurality of outer-ring vertical rods, a plurality of inner-ring vertical rods and central vertical rods; and the first horizontal support assembly and the second horizontal support assembly have the same structure, and each of the first horizontal support assembly and the second horizontal support assembly consists of a plurality of long diagonal support rods, a plurality of connecting rods and a plurality of short support rods. The present invention can provide supporting points for fixing inner formwork boards and, in combination with outer-ring reinforcing steel bars for outer formwork boards, can overcome impact force and lateral static pressure during concrete pouring, without needing to fix the formwork boards by using tie bolts. In addition, in a formwork assembly stage, the platform base plate can provide a working face for mounting the formwork. Thus, the present invention is convenient to operate, does not require assembly and disassembly, and can be directly hoisted and installed for use as a whole, thereby saving on time and labor.

The present disclosure provides a cylindrical structure construction platform that both a first telescopic portion and an elastic member drive a guiding wheel to tightly abut against an outer template, adjusting radial positions of a pouring pipe and a tamping device according to an outline of the outer template by a second telescopic portion to reduce construction errors, adjusting an inclination angle of the guiding wheel by an adjusting mechanism, a slewing mechanism driving a rotary table to drive the guiding wheel to climb along a surface of the outer template, the pouring pipe is poured layer by layer from the bottom to the top of a pouring cavity to reduce a height difference during pouring for further reducing generation of air holes, the tamping device vibrates layer by layer from the bottom to the top of the pouring cavity to further eliminate the air holes.

The utility model relates to the technical field of building construction, in particular to an arc-surface slideway joint for a rail type self-climbing construction formwork. The utility model provides an arc surface slideway section for a track type self-climbing construction formwork, the arc surface slideway section is a non-rotatable slideway section, the arc surface slideway section comprises a shell, a hydraulic cylinder, a slideway section locking hydraulic cylinder and a slideway section slideway, the shell limits the longitudinal axis of a track, the hydraulic cylinder is connected with the slideway section locking hydraulic cylinder, and the slideway section slideway is connected with the hydraulic cylinder. The hydraulic cylinder extends parallel to the longitudinal axis, the slideway section locking hydraulic cylinder extends perpendicular to the longitudinal axis, and the slideway section slideway is configured to be in sliding fit with a track. The angle of the V-shaped panel of the arc-surface slideway joint is not limited and can be set to be different angles according to requirements, so that the universality can be improved.

The invention discloses a suspension cable soft platform formwork structure for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction.The formwork structure comprises a suspension cable net system, a formwork supporting system and an intelligent monitoring system.The suspension cable net system comprises main cables and auxiliary cables which are orthogonally arranged; the main cables are radially distributed along the silo top of the silo body, and the auxiliary cables are annularly arranged along the silo top of the silo body in a closed mode. The formwork supporting system comprises an auxiliary scaffold board and a full supporting frame which are arranged in the suspension cable net system, the upper portion of the full supporting frame is of a circular truncated cone structure forming a silo conical shell, a conical shell side wall mold is arranged on the arc face of the circular truncated cone structure, and a conical shell silo top mold is arranged on the upper bottom face of the circular truncated cone structure. The intelligent monitoring system comprises a load sensor and a tilt angle sensor. According to the method, through dynamic coupling of the orthogonal suspension cable net and the modular supporting system and combination of an intelligent monitoring system, precise control over the construction process is achieved, the steel consumption is reduced, the construction period is shortened, and safety and adaptability are improved.

The invention relates to a plant steel truss floor support plate, and belongs to the field of building steel structures, the plant steel truss floor support plate comprises a first bottom plate and a second bottom plate, the first bottom plate is arranged on the second bottom plate, the size of the second bottom plate is larger than that of the first bottom plate, and a plurality of first vertical rib positioning grooves are formed in the second bottom plate; the first vertical rib positioning grooves are formed close to the side face of the first bottom plate, second vertical rib positioning grooves are formed in the two sides of the first bottom plate, the second vertical rib positioning grooves penetrate through the bottom and the top of the first bottom plate, the second vertical rib positioning grooves correspond to the first vertical rib positioning grooves in a one-to-one mode and are communicated with the first vertical rib positioning grooves, and the first vertical rib positioning grooves in the two sides of the second bottom plate correspond to each other in a one-to-one mode. The floor support plate has the advantages that the vertical steel bars can be accurately and rapidly positioned, the vertical steel bars are not prone to deviation in the welding process, meanwhile, splicing of the adjacent bottom plates is facilitated, the machining difficulty of the floor support plate is lowered, and the situation of slurry leakage in the concrete pouring process is reduced.

Automated side forming device for box girders for high-speed railways with: a side forming mechanism (2) wherein a side forming flange plate part and a side forming web part are connected to each other; a support traverse (4) which is arranged symmetrically on two outer sides of the base of the side forming mechanism (2); a support mechanism of the side form (3), wherein this is provided in several groups at longitudinal intervals on both outer sides of the side form mechanism (2), wherein each group of the support mechanism of the side form (3) comprises at least two length-adjustable side form spacers, one end of which supports a corresponding section of the side form flange section and the section of the side form web section, the other end of which is connected to the support traverse (4); a lifting mechanism (5) which is spaced longitudinally below the support traverse (4) and whose upper end is connected to the support traverse (4) in a way that allows it to be raised.

Disclosed in the present invention are a prefabricated composite floor slab and steel bar truss floor deck directly utilizing old slabs, and a method. The prefabricated composite floor slab comprises new concrete, old concrete slabs, a slab bottom reinforcing mesh, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and post-cast concrete. The steel bar truss floor deck comprises new concrete, old concrete slabs, a steel base plate, a slab surface reinforcing mesh, steel bar trusses, steel dowel bars, and support steel bars. According to the present invention, the old concrete slabs are directly utilized instead of being crushed into recycled blocks or recycled aggregates for reuse, thereby greatly simplifying processing procedures, significantly increasing the recycling rate of old concrete, and significantly reducing the usage amounts of new concrete and corresponding cement, thus achieving a significant carbon emission reduction effect; through holes are vertically drilled in the old concrete slabs, the steel dowel bars are inserted into the through holes, gaps between the steel dowel bars and the through holes are then filled with a high-strength grouting material, and shear resistance members are arranged on the side edges of the old concrete slats to enhance the shear resistance at the interface between the new concrete and the old concrete.

The invention discloses a construction system capable of adjusting a construction range, which is applied to a construction integrated platform, and comprises a truss mounted in the construction integrated platform, a first sliding beam mounted on the truss lower chord through a first connecting structure, and a second sliding beam mounted on the truss lower chord through a second connecting structure, the second sliding beam is rotationally connected with the first connecting structure through a second connecting structure, and when the second sliding beam rotates to be flush with the end face of the first sliding beam, the second sliding beam is fixedly connected with the first sliding beam through a fixing structure to serve as an extension sliding beam of the first sliding beam; the hanging frame and the formwork are arranged below the first sliding beam in a sliding mode through a pulley assembly and a steel wire rope, and the hanging frame and the formwork are used as a construction operation area for conducting construction operation on the to-be-constructed structure. By the adoption of the construction integrated platform, the purpose of detachably adding joints to the first sliding beam in the construction integrated platform can be achieved, the construction operation range of the construction integrated platform is effectively expanded, and the problem of interference and collision existing in the construction process is solved.

The invention provides a hollow slab internal mold construction system, and relates to the technical field of building construction. A first construction result acquisition module; the initial construction parameter optimization module is used for scanning the first construction result through a laser scanner, analyzing and determining first concrete compactness deviation and first construction deviation, optimizing initial construction parameters and determining first optimal construction parameters; and the construction operation module is used for executing the construction operation of the second pouring interval according to the first optimal construction parameters until the preset construction period is completed. By means of the method, the technical problems that in an existing method, due to the fact that accuracy and timeliness of construction parameter regulation and control are insufficient, overall construction errors are seriously accumulated, and overall construction quality is affected can be solved, pouring parameters and vibration parameters can be rapidly and accurately adjusted, construction management and control fineness and intelligence are improved, and construction efficiency is improved. Therefore, the problem of construction regulation lag is effectively solved, and the construction precision and the construction quality are remarkably improved.

The utility model relates to the technical field of house building construction, in particular to a stair formwork building device for house building construction. The utility model provides a stair formwork building device for house building construction, which is high in building adaptability. A stair formwork building device for house building construction comprises a bottom plate, an angle adjusting assembly, a connecting frame, a supporting plate, side edge fixing assemblies and the like, the supporting plate is rotatably connected to the upper portion of the right portion of the bottom plate, the side edge fixing assemblies are slidably connected to the left portion and the right portion of the supporting plate, and the connecting frame is rotatably connected to the lower side of the left portion of the supporting plate. An angle adjusting assembly is connected between the upper side of the left portion of the bottom plate and the connecting frame. According to the stair formwork supporting device, the movable bottom frame is matched with the driving motor, so that the bottom plate is moved and adjusted in the horizontal direction and the vertical direction, the supporting plate can be matched with installation of stair formworks at different positions, and the adaptability of building of the stair formworks is improved.

A high-capacity beam includes interoperable features conformant with the pretexting modular grid shoring system including conformant interface rails and conformant end caps that removably engage with the conformant interface rails. The truss portion of the high-capacity beam has the same width and a greater height compared to the truss portion of the low-capacity beam. The high-capacity beam may also include a conformant T-slot and beveled end faces on respective opposing sides of the high-capacity truss portion. A nominal 8-foot length of the modular high-capacity beam weighs less than about 50 lbs., while a nominal 6-foot length of the low-capacity beam weighs less than about 40 lbs. A grid shoring assembly utilizing the high-capacity main beams is rated for supporting a nominal 13-inch concrete platform, while a grid shoring assembly utilizing the low-capacity main beams is rated for supporting a nominal 6-inch concrete platform.

The invention relates to the technical field of silo grain storage engineering, and particularly discloses a construction process of a conical silo top of a large-diameter squat silo, which comprises the following steps: step 1, lifting a steel truss to a height not lower than the mounting position of a bracket, and then fixedly mounting the bracket on an embedded threaded pipe on a silo wall; secondly, a supporting plate of the bracket is fixedly connected with a stress plate fixed to the radiation beam through a bolt; wherein a plurality of mounting holes are formed in the supporting plate of the bracket, a plurality of matching holes are formed in the stress plate, fixed connection is achieved by inserting bolts into the mounting holes and the matching holes, and the mounting holes and / or the lap joint holes are adjusting holes. And thirdly, formworks are installed on the steel trusses, steel bars are bundled, then the silo top is poured, and during pouring, according to the principle of first bottom and then top, the lower ring beam connected with the silo wall is poured firstly, then the conical shell is poured, and finally the center of the silo top is poured. The scheme is used for solving the problems that disassembly is time-consuming and secondary utilization is affected due to welding of the steel truss and the bracket at present.

Disclosed in the present application is a cast-in-place prefabricated building formwork component suitable for columns or beams, comprising a columnar formwork and stirrups fixed to the formwork; the upper and lower ends of the formwork are provided with connection fitting parts that fit adjacent formworks; the formwork is defined by steel plates; the stirrups are jointly formed by the steel plates and rod-shaped members fixedly connected to inner side surfaces of the steel plates. In addition, further disclosed in the present application are a cast-in-place prefabricated building shear wall component and a cast-in-place prefabricated building floor slab component. A stress test result proves that structures such as columns and beams formed by the cast-in-place prefabricated building formwork component in the present application can have a better constraint effect on concrete cast inside, and particularly increase a constraint area, thereby improving the overall shear resistance and bearing capacity of buildings, and having great significance for seismic resistance of the buildings in earthquakes.

A building panel for modular construction. The building panel utilises less framework for reduced complexity, materials and weight. The panel utilises features of the formwork to allow the panel to be moved easily. The panel further utilises new formwork moulds that are easier to use and create effective patterns for keying with like panels.

Various implementations described herein are directed to a formwork system. In one implementation, the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

The invention discloses a construction method and device for controlling the perpendicularity of a high pier, and belongs to the technical field of bridge engineering construction. Determining a plumb aligner control point; mounting a creeping formwork bracket; installing a laser target; correcting and installing an inclination measuring instrument; centering the point position of the laser plumb aligner; measuring a deviation value between the laser beam and the pier body; collecting data of an inclination measuring instrument; and pier body concrete is poured. According to the method, through triple measurement rechecking and chemical deviation calculation, the perpendicularity control precision and efficiency of high pier construction are remarkably improved, and the method is suitable for high pier construction in a complex environment.

The invention relates to the technical field of laminated slab machining, in particular to a laminated slab splicing template which comprises a frame, a driving device is fixedly mounted on the inner side of the frame, and side clamping sets are fixedly mounted at the top of the driving device at equal intervals in a 2 * 2 arrangement mode. According to the laminating device, a laminated slab main body can be precisely laminated, a driving motor is used for driving a lead screw, a first gear and a first rack to transmit, four side clamping sets are synchronously driven to stably clamp and position the laminated slab main body, after the side clamping sets are adjusted in advance according to the specification of a laminated slab, the motor drives a second gear, the second gear is meshed with a third gear, and a second rack is driven to slide down; the sliding rod and the connecting plate are driven to enable the pressure applying template to move downwards to make contact with the top of the laminated slab body, when the side clamping sets complete clamping, the pressure applying template is just pressed, and the telescopic spring assists in continuous pressing and positioning, the device can clamp the laminated slab body in all directions, the pressure applying template can be flexibly adjusted for synchronous pressing, and the precision and efficiency of abutted seam machining are remarkably improved.

The utility model discloses an external hanging type climbing and turning combined formwork system, which belongs to the technical field of bridge construction, and comprises an operation platform and a climbing assembly, and the climbing assembly is connected with the operation platform to drive the operation platform to climb; the operation platform is connected with a shaping template, the shaping template can slide relative to the operation platform so as to adjust the distance between the shaping template and the pier column, when the pouring section of the pier column changes, the variable-section pier column can be poured, and an outer frame protection steel plate net is installed on the outer side of the operation platform so as to form an outer side protection system. The utility model has the advantages that the pier column with an inclined surface can be subjected to pouring construction, the construction is simple, a crane is not needed, a certain safe distance can be always kept between the operation platform and the pier column, and the safety construction specification is met.

Systems and methods of installing a fixture into a material are provided. The fixture includes a body and a cover assembly that is removably coupled to the body and configured to move relative to the body once the body has been secured within the material. The cover assembly includes a movable component configured to aid removal of the cover assembly.

The invention discloses a construction method of an aluminum alloy formwork system for residential buildings. According to the construction method, the difficulty of assembly and disassembly construction and turnover use of aluminum alloy formworks can be reduced, and the construction quality and the construction efficiency of an assembly type structural system are improved. The construction method comprises the following steps: rechecking an axis and a wall line projected by a wall body according to a building design scheme, so that the axis and the wall line meet construction requirements; determining a wall body vertical reference line, and positioning a wall corner; a wall formwork system is installed, and perpendicularity is corrected; a beam formwork system is installed and corrected; a floor formwork system is installed and corrected; wall body concrete, beam body concrete, column concrete and floor slab concrete are poured, so that the wall body, the beam body, the column and the floor slab are connected into an integral structure; and the wall formwork system, the beam formwork system and the floor formwork system are dismantled, and the dismantled wall formwork system, the dismantled beam formwork system and the dismantled floor formwork system are conveyed to an upper-layer building for construction through a feeding opening.

The invention relates to a heavy cover plate building machine which comprises truss girders arranged at intervals, and an overhead layer is formed between every two adjacent truss girders; the U-shaped frame is arranged between the truss girders, and the top surface of the U-shaped frame is lower than the top surfaces of the truss girders, so that a space for stacking templates is reserved; the gate-type supporting frame is mounted on the U-shaped frame in a sliding manner; the hydraulic jack is mounted on the U-shaped frame and is used for fixedly supporting the door-type supporting frame; the guide wheel moving assemblies are installed at the bottoms of the two ends of the truss girder. The track is laid below the guide wheel moving assembly; the unloading block is mounted on the bottom surface of the track; the latticed column is supported on the bottom surface of the unloading block below one end of the truss girder; the structural column embedded bracket is mounted on the side surface of the structural column and is supported on the bottom surface of the unloading block below the other end of the truss beam; the invention discloses a detachable formwork assembly. The construction efficiency of the concrete floor cover plate can be improved, and during slip form construction, the formworks are stacked in the empty space after being disassembled and can move to the next construction section in the direction perpendicular to the concrete beam.

The invention discloses a large-span concrete structure construction method based on a frequency modulation mass damper, which comprises the following steps: firstly, erecting a formwork body, paving a beam bottom formwork, and then binding beam steel bars; then, profile steel embedded parts are installed, embedded lug plates are welded, and H-shaped steel beams are installed; then, a beam side mold is closed and reinforced; then, a frequency modulation mass damper is installed and welded and fixed, and a weld joint is coated with anti-corrosion and fireproof paint; construction of a structural formwork is conducted on the portion where the frequency modulation mass damper is installed; finally, concrete is poured; and after concrete pouring is completed, the formwork is removed, and construction of the large-span concrete structure with the frequency modulation mass damper is completed. The purpose of saving the construction period is achieved by improving the construction process, the project of reserving a hoisting hole is omitted by installing the damper in place in advance at a time, the risk of leakage of the structural slab due to a construction joint can be avoided, and the purpose of saving the construction period can be further achieved.

A scaffolding crossbar having at least two, in particular at least three crossbar coupling elements at one end. The crossbar coupling elements can be designed to be the same. The crossbar coupling elements are designed preferably in the form of receiving openings. The crossbar coupling elements serve to detachably secure diagonal piece coupling elements. The scaffolding according to the invention, having a scaffolding crossbar of this type, has a diagonal scaffolding piece with a first diagonal piece coupling element at one end and a second diagonal piece coupling element at the other end. The first diagonal piece coupling element can be designed differently from the second diagonal piece coupling element, wherein the crossbar coupling elements are designed preferably for connecting both diagonal piece coupling elements. The scaffolding can thereby be designed such that it is optionally partially or completely particularly torsion resistant.

The utility model relates to a turnover internal corner construction formwork which comprises an angle adjusting rod, rotary connecting plates and steel formworks, the length of the angle adjusting rod can be adjusted, the two ends of the angle adjusting rod are connected with the rotary connecting plates respectively, one side of each rotary connecting plate is provided with a set of steel formworks, and the rotary connecting plates are fixedly connected with the steel formworks. Each steel formwork comprises an L-shaped steel plate, a supporting plate and a fixing plate, the edge of one flange of each L-shaped steel plate in the two sets of steel formworks is hinged through a rotating shaft, the opening ends of the L-shaped steel plates of the two sets of steel formworks face the same side, and the supporting plates and the fixing plates are arranged on the edges of the two flanges of each L-shaped steel plate of each set of steel formworks; the supporting plate and the fixing plate are clamped on the two sides of a flange of the L-shaped steel plate respectively and exceed the edge of the flange of the L-shaped steel plate, and the supporting plate, the L-shaped steel plate and the fixing plate are fixedly connected to form a slot. The internal corner construction quality and the construction progress can be improved, and the internal corner can be repeatedly used.

The invention provides a method for controlling the precision of an inner molded surface of a cast-in-place slab hung below a net rack, and belongs to the technical field of wind tunnel construction.The method comprises the steps that a C-shaped clamping piece and a sensor system are installed on a net rack lower chord, a monitoring network is established, fatigue characteristic data are analyzed through a minimum cut algorithm, and a load imbalance coefficient is calculated; a high-precision adjustable suspender and a prestress adjusting device are installed to construct a dynamic supporting system, a three-level precision compensation mechanism is established to achieve preventive compensation before construction, real-time monitoring compensation in the construction process and corrective compensation after pouring is completed, and multi-target collaborative optimization is achieved through a dynamic adjusting algorithm and a game optimization model. A complete technical system including fatigue point prediction, load redistribution and precision real-time control is formed, and the technical problem that in the construction process of hanging the cast-in-place slab under the net rack, the plane precision control lacks a systematic dynamic adjustment mechanism is solved.

The invention relates to the technical field of cable pre-burying in wall manufacturing, in particular to building construction house building wall pre-burying construction equipment. According to the technical scheme, the wall body base is used for wall body pouring, the embedded steel bars, the formworks and the embedded wire pipes are used for cable threading, the formworks are fixed to the two sides of the upper end of the wall body base, the embedded steel bars are fixed to the upper end of the wall body base and located between the formworks, and the embedded wire pipes are fixed to the inner sides of the formworks through wire pipe fixing pieces. A dismounting and mounting assembly is arranged between the line pipe fixing piece and the formwork, and end frames are fixed to the two ends of the pre-embedded line pipe. Before the wall body between the formworks is poured, the pre-embedded wire pipe can be stably fixed to the designated position between the formworks, grooving is not needed again for wire harness laying after a building is completed, the depth of the pre-embedded wire pipe in the wall body can be freely adjusted on the premise that the stability during concrete pouring is guaranteed, and the construction efficiency is improved. And embedded steel bars in the wall body can be better avoided.

The reinforcing structure comprises formworks defining a column body pouring space, profile steel is arranged in the formworks, the reinforcing structure further comprises a plurality of bases surrounding the outer sides of the formworks, baffles are supported on the inner sides of the bases, the baffles are arranged at the gap between the upper formwork and the lower formwork in a blocking mode, the bases are connected with pulling and connecting assemblies, and the pulling and connecting assemblies are arranged on the outer sides of the bases. The tie assembly penetrates through the baffle and a gap between the upper formwork and the lower formwork to be connected with the profile steel, and every two adjacent bases are connected through a connecting assembly. The construction method has the beneficial effects that the internal profile steel is used as an anchoring point, the baffle is tied on the outer side of the formwork, slurry plugging at the position can be achieved, the formwork at the position can be reinforced, and follow-up construction deformation is avoided; the size of the tie and the size of the connecting assembly can be flexibly adjusted, so that the whole structure can meet construction requirements of columns of different shapes and specifications, and the application scene is expanded; the formwork is additionally reinforced through the cross beams which are supported mutually and internally, the overall stability of the formwork is further improved, and the formwork is flexible, adjustable and convenient to turn over.