A UHPC composite beam non-disassembly formwork structure and construction method thereof

Abstract

The present invention discloses a UHPC composite beam structure, which belongs to the technical field of building structures. The structure comprises a bottom plate and side plates arranged on both sides, end plates connected to the side plates are arranged at both ends of the bottom plate, and a plurality of ribs are arranged on the facing surfaces of the side plates, and the bottom, side plates, end plates and ribs are all made of UHPC material; the structure also comprises a truss structure, which comprises four rectangularly distributed steel beams, the ends of the steel beams are connected to the corresponding end plates, a plurality of transverse beams are arranged between the laterally adjacent steel beams, and a plurality of longitudinal beams are arranged between the vertically adjacent steel beams, the longitudinal beams correspond to the ribs one by one, and a plurality of diagonal braces are obliquely arranged between adjacent longitudinal beams; a plurality of connecting seats are arranged on the ribs, and connecting rods are arranged between the connecting seats and the corresponding longitudinal beams; the purpose is to avoid the need to set up a temporary support structure and do not need to be disassembled after casting, thereby saving construction time.

Description

Technical Field

[0001] The present invention belongs to the technical field of building structures, and in particular relates to a UHPC composite beam disassembly-free formwork structure and a construction method thereof. Background Art

[0002] Traditional building beams are cast in one piece. During construction, formwork and temporary support structures must be erected on-site, and the formwork must be removed after casting. This results in low construction efficiency. Furthermore, the formwork used in construction suffers from low turnover, high wear, and rapid depreciation, resulting in a significant annual consumption of wood and steel resources and a significant impact on the ecological environment. Therefore, a disassembly-free formwork structure is needed that eliminates the need for temporary support structures and does not require disassembly after casting, thus saving construction time. Summary of the Invention

[0003] In view of this, the present invention discloses a UHPC composite beam non-disassembly formwork structure and a construction method thereof, the purpose of which is to eliminate the need to set up a temporary support structure and not to disassemble after casting and forming, thereby saving construction time.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A UHPC composite beam non-disassembly formwork structure comprises a bottom plate and side plates arranged on both sides, end plates connected to the side plates are arranged at both ends of the bottom plate, a plurality of ribs are arranged on the facing surfaces of the side plates, and the bottom, side plates, end plates and ribs are all made of UHPC material; it also comprises a truss structure, the truss structure comprises four rectangularly distributed steel beams, the ends of the steel beams are connected to the corresponding end plates, a plurality of transverse beams are arranged between the laterally adjacent steel beams, and a plurality of longitudinal beams are arranged between the vertically adjacent steel beams, the longitudinal beams correspond to the ribs one by one, and a plurality of diagonal braces are obliquely arranged between adjacent longitudinal beams; a plurality of connecting seats are provided on the ribs, and connecting rods are provided between the connecting seats and the corresponding longitudinal beams.

[0006] This solution combines the advantages of both integral cast-in-situ and fully prefabricated construction methods. The prefabricated shell and truss structure significantly reduces the deadweight, can be hoisted by traditional machinery, and is easy to transport. It can solve the problem of difficult hoisting due to the heavy deadweight of the composite beam. After the hoisting is completed, ordinary concrete is poured, which can avoid on-site formwork, erection of temporary support structures, dismantling of formwork and other processes, thereby improving on-site construction efficiency.

[0007] The top of the rib plate is longitudinally provided with an adjustment slot connected to the side plate, and the side wall of the adjustment slot is penetrated by a plurality of through slots facing the truss structure, and the connecting seat includes a seat body arranged in the through slot, and a gap is reserved between the seat body and the side wall of the through slot, and the seat body is provided with a spherical cavity at both ends exposed to the seat body, and a mounting ball is rotatably arranged in the spherical cavity, and the mounting ball is provided with a connecting hole; the connecting rod is a telescopic structure, one end of the connecting rod passes through the corresponding connecting hole and is connected to the sliding seat by a ball hinge, and the other end of the connecting rod is detachably connected to the corresponding longitudinal beam side wall by a ball hinge; a plurality of guide rails are provided in the adjusting slot, one end of the guide rail is rotatably connected to the corresponding sliding seat

[0008] In this solution, after pouring concrete into the prefabricated shell, the side panels are deformed by the force of the concrete. At this time, the connecting rod is driven by the driving structure to swing around the longitudinal beam connection point, and the connecting rod is extended and retracted to drive the slide to slide on the guide rail and drive the guide rail to deflect, so that the guide rail and the slide are in the deformation area or close to the deformation area, and the direction of the connecting rod remains unchanged. The driving structure is used to drive the connecting rod to extend and retract, and the connecting rod drives the guide rail to move along the axis of the connecting rod through the slide. The guide rail pulls or pushes the side panel deformation area through the rotating shaft and the limit block, causing the side panel to restore its deformation. In this solution, a closing plate is used to block the groove so that the concrete during the pouring process cannot flow into the adjustment groove, and the seat and the connecting ball are used to enable the connecting rod to still deflect during the concrete solidification process, thereby adjusting the guide rail and the slide to be in the deformation area or close to the deformation area, and then the extension and retraction of the connecting rod is used to accurately control the side panel to restore its deformation, thereby improving the accuracy of the composite beam after forming.

[0009] Furthermore, four connecting shafts distributed in a rectangular shape are fixed on the end face of the closing plate facing away from the truss structure, and the connecting shafts are rotatably connected to support rods perpendicular to them. The ends of the support rods are rotatably connected to support shafts parallel to the connecting shafts, and the support shafts are fixedly connected to the side walls of the adjustment groove.

[0010] Through the cooperation of the connecting shaft, the support rod and the supporting shaft, the closing plate can move in any direction on the plane while keeping close contact with the rib plate, avoiding the deflection of the limiting connecting rod.

[0011] Furthermore, the connecting rod includes a fixed rod, one end of the fixed rod is connected to the longitudinal beam ball hinge, the other end of the fixed rod passes through the connecting hole and extends into the adjusting slot and is sleeved with a moving rod, and the other end of the fixed rod is provided with a thread; the other end of the moving rod is coaxially rotatable with a rotating rod connected to the sliding seat ball hinge, the end of the moving rod is hinged with a plurality of clamping plates for clamping the fixed rod, and a torsion spring is provided at the hinge, the contact end surface of the clamping plate and the fixed rod is provided with a thread matching the threaded rod, and a sleeve is slidably sleeved on the moving rod; the driving structure includes a support detachably connected to one side of the adjusting slot, and the support is provided with a plurality of The dry drive unit includes a vertically arranged slide rail, each of which is slidably connected to a guide seat, and each of which is provided with a power structure that drives it to move. A telescopic rod facing the moving rod is fixed on the guide seat, and the end of the telescopic rod is connected to the adjustment seat by a ball joint, and a reset elastic member is provided between the adjustment seat and the telescopic rod. The end of the adjustment seat is symmetrically hinged with an arc plate for clamping the moving rod, and a torsion motor is hingedly provided. An installation groove is provided on the inner arc surface of the arc plate, and a drive motor is provided in the installation groove. The output end of the drive motor is provided with a drive gear that meshes with the outer wall of the moving rod.

[0012] In this solution, the detachable connection between the driving structure and the rib plate enables the driving structure to be recycled; in addition, the deflection and extension of each connecting rod can be accurately controlled through the driving unit of the driving structure, and the side plate can be more accurately controlled to restore the deformation.

[0013] Furthermore, a push rod for pushing the sleeve to move is provided on the side wall of the arc-shaped plate.

[0014] Furthermore, the bottom plate, side plates and end plates are all printed.

[0015] A construction method for a UHPC composite beam non-disassembly formwork structure comprises the following steps:

[0016] 1) Prefabrication: The bottom plate, side plates, and end plates are integrally cast in the factory to form the shell. After curing, guide rails and slides are installed on the side plates, and the moving rod and rotating rod are connected to the slides. The ribs are then cast. After curing, the connecting seat and closing plate are installed. The threaded end of the fixing rod is then passed through the connecting ball and inserted into the moving rod.

[0017] 2) Install the combined beam: After hoisting the shell to the installation location, hoist the truss structure, connect and fix the steel beam to the end plate, and connect the end of the fixed rod to the corresponding longitudinal beam with a detachable ball joint; insert the drive structure into the adjustment slot and fix it to the rib plate, then use the power structure to drive the guide seat to slide so that the guide seat is facing the corresponding moving rod, and then control the extension of the telescopic rod to move the arc plate at the end of the adjustment seat to the upper and lower sides of the moving rod, and then control the torsion motor to rotate forward so that the arc plate is close to the moving rod but the drive gear is not engaged with the moving rod;

[0018] 3) Initial pouring: pour concrete into the shell and vibrate it;

[0019] 4) Adjustment: During the solidification process of concrete, if the side plate is deformed, the power structure in the adjacent area is controlled to drive the guide seat to slide and the telescopic rod to extend and retract, and the curved plate clamps the moving rod, thereby driving the deflection of the connecting rod. The connecting rod slides through the slide and drives the guide rail to deflect, so that the slide is in the deformation area or close to the deformation area, and then the power structure and the telescopic rod are turned off to limit the direction of the connecting rod; at this time, the torsion motor is controlled to continue to rotate forward, so that the curved plate fits on the moving rod, and the driving gear engages with the moving rod, and then the push rod is controlled to extend, and the push rod pushes the sleeve to the clamping plate, so that the thread on the clamping plate matches the thread at the end of the fixed rod, and then the drive motor is started. The drive motor drives the moving rod to rotate through the drive gear, thereby controlling the extension and retraction of the connecting rod, thereby pulling or pushing the deformation area, and the drive motor is turned off after the side plate is restored to its deformation;

[0020] 5) Secondary pouring: After the concrete solidifies, control the push rod to reset, then control the torsion motor to reverse, reset the curved plate, then control the telescopic rod to shorten, and then remove the support; then pour concrete in the rib plate and perform maintenance.

[0021] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0023] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0024] Figure 2 A longitudinal cross-sectional view of an embodiment of the present invention;

[0025] Figure 3 for Figure 2A magnified schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle;

[0027] Figure 5 Schematic diagram of the structure of the driving unit in an embodiment of the present invention.

[0028] The markings in the accompanying drawings are as follows: base plate 1, side plate 2, end plate 3, rib plate 4, steel beam 5, cross beam 6, longitudinal beam 7, diagonal brace 8, support 9, seat body 10, mounting ball 11, slide 12, guide rail 13, rotating shaft 14, limit block 15, closing plate 16, connecting shaft 17, support shaft 18, support rod 19, fixed rod 20, moving rod 21, rotating rod 22, clamping plate 23, sleeve 24, slide rail 25, guide seat 26, telescopic rod 27, adjustment seat 28, curved plate 29, drive motor 30, drive gear 31, push rod 32. DETAILED DESCRIPTION

[0029] like Figures 1 to 5 As shown:

[0030] A UHPC composite beam non-disassembly formwork structure includes a bottom plate 1 and side plates 2 arranged on both sides, end plates 3 connected to the side plates 2 are arranged at both ends of the bottom plate 1, and a number of ribs 4 are arranged on the facing surfaces of the side plates 2, and the bottom plate 1, side plates 2, end plates 3 and ribs 4 are all made of UHPC; it also includes a truss structure, the truss structure includes four rectangularly distributed steel beams 5, the ends of the steel beams 5 are connected to the corresponding end plates 3, and the end plates 3 are pre-embedded with embedded parts connected to the steel beams 5 (conventional technical means, so not drawn in the figure), a number of transverse beams 6 are welded and fixed between the laterally adjacent steel beams 5, and a number of longitudinal beams 7 are welded and fixed between the vertically adjacent steel beams 5, the longitudinal beams 7 correspond to the ribs 4 one by one, and a number of obliquely arranged diagonal braces 8 are welded and fixed between adjacent longitudinal beams 7; a number of connecting seats are provided on the ribs 4, and connecting rods are provided between the connecting seats and the corresponding longitudinal beams 7.

[0031] This solution combines the advantages of both integral cast-in-place and fully prefabricated construction methods. By prefabricating the shell and truss structure, the deadweight is significantly reduced, allowing for lifting with traditional machinery and facilitating transportation. This solution addresses the difficulty in lifting due to the heavy deadweight of the composite beam. In the factory, the base plate 1, side plates 2, and end plates 3 are integrally cast to form the shell, and the truss structure is prefabricated. After the shell is hoisted to the installation location, the truss structure is then hoisted, and after welding the steel beam 5 to the embedded parts on the end plate 3, ordinary concrete is poured. This eliminates the need for on-site formwork, erection of temporary support structures, and formwork removal, improving on-site construction efficiency.

[0032] In this embodiment, the top of the rib plate 4 is longitudinally provided with an adjustment groove connected to the side plate 2, and the side wall of the adjustment groove is penetrated with a number of through grooves facing the truss structure. The connecting seat includes a seat body 10 arranged in the through groove, and a gap is reserved between the seat body 10 and the side wall of the through groove. The seat body 10 is provided with a spherical cavity with both ends exposed to the seat body 10, and a mounting ball 11 is rotatably provided in the spherical cavity, and a connecting hole is provided on the mounting ball 11; the connecting rod is a telescopic structure, and one end of the connecting rod passes through the corresponding connecting hole and is connected to the sliding seat 12 with a ball hinge, and the other end of the connecting rod is provided with a ball hinge. The end is connected to the side wall of the corresponding longitudinal beam 7 by a detachable ball joint; a number of guide rails 13 slidably connected to the corresponding slide seat 12 are provided in the adjusting groove, and one end of the guide rail 13 is rotatably connected to a rotating shaft 14 connected to the side panel 2, and the side panel 2 is correspondingly provided with an annular groove coaxial with the rotating shaft 14, and the other end of the guide rail 13 is fixed with a limit block 15 slidably connected to the annular groove; a closing plate 16 for sealing the chamber is sleeved on the seat body 10, and the closing plate 16 is fitted with the side wall of the adjusting groove, and a driving structure for driving the connecting rod to swing and extend is detachably connected in the adjusting groove.

[0033] In this solution, after pouring concrete into the prefabricated shell, the side panel 2 is deformed by the force of the concrete. At this time, the driving structure drives the connecting rod to swing around the connection point of the longitudinal beam 7, and cooperates with the extension and contraction of the connecting rod to drive the slide 12 to slide on the guide rail 13 and drive the guide rail 13 to deflect, so that the guide rail 13 and the slide 12 are in the deformation area or close to the deformation area, keeping the direction of the connecting rod unchanged, and using the driving structure to drive the connecting rod to extend and contract. The connecting rod drives the guide rail 13 to move along the axis of the connecting rod through the slide 12, and the guide rail 13 pulls or pushes the deformation area of ​​the side panel 2 through the rotating shaft 14 and the limit block 15, so as to cause the side panel 2 to restore its deformation. In this solution, a closing plate 16 is used to block the groove so that concrete cannot flow into the adjustment groove during the pouring process. In conjunction with the seat body 10 and the connecting ball, the connecting rod can still deflect during the concrete solidification process, thereby adjusting the guide rail 13 and the slide seat 12 to be in the deformation area or close to the deformation area, and then using the extension and retraction of the connecting rod to accurately control the side panel 2 to restore deformation, thereby improving the accuracy of the composite beam after forming.

[0034] In this embodiment, four rectangularly distributed connecting shafts 17 are welded and fixed on the end surface of the closing plate 16 facing away from the truss structure. The connecting shafts 17 are rotatably connected to support rods 19 perpendicular to them. The ends of the support rods 19 are rotatably connected to support shafts 18 parallel to the connecting shafts 17. The support shafts 18 are fixedly connected to the side walls of the adjustment groove.

[0035] Through the cooperation of the connecting shaft 17, the support rod 19 and the supporting shaft 18, the closing plate 16 can move in any direction on the plane while keeping close contact with the rib plate 4, avoiding the deflection of the limiting connecting rod.

[0036] The other end of the fixing rod 20 is provided with a sleeve 24, and the other end of the fixing rod 20 is provided with a sleeve 24. The guide seat 26 is provided with a power structure for driving its movement (in this embodiment, the power structure is driven by a motor, which is a conventional technical means, so it is not drawn in the figure). A telescopic rod 27 facing the moving rod 21 is welded and fixed on the guide seat 26. The end of the telescopic rod 27 is connected to the adjusting seat 28 with a ball joint, and a reset elastic member is provided between the adjusting seat 28 and the telescopic rod 27. The reset elastic member is used to keep the seat body 10 in a horizontal state in the absence of other external forces (which is a conventional technical means, so it is not drawn in the figure). The end of the adjusting seat 28 is symmetrically hinged with an arc plate 29 for clamping the moving rod 21, and a torsion motor is hingedly provided (which is a conventional technical means, so it is not drawn in the figure). The inner arc surface of the arc plate 29 is provided with an installation groove, and a drive motor 30 is provided in the installation groove. The output end of the drive motor 30 is provided with a drive gear 31 that meshes with the outer wall of the moving rod 21.

[0037] In this solution, the detachable connection between the driving structure and the rib plate 4 enables the driving structure to be recycled; in addition, the deflection and extension of each connecting rod can be accurately controlled through the driving unit of the driving structure, and the side plate 2 can be more accurately controlled to restore its deformation. Before pouring, the driving structure is inserted into the adjusting groove and fixed to the rib plate 4, and then the guide seat 26 is driven to slide by the power structure so that the guide seat 26 is opposite to the corresponding moving rod 21, and then the telescopic rod 27 is controlled to extend to move the arc plate 29 at the end of the adjusting seat 28 to the upper and lower sides of the moving rod 21, and then the torsion motor is controlled to rotate forward so that the arc plate 29 is close to the moving rod 21 but the driving gear 31 is not engaged with the moving rod 21; during the concrete solidification process, if the side plate 2 is deformed, the guide seat 26 is driven to slide and the telescopic rod 27 is extended and retracted by controlling the power structure in the adjacent area, and the arc plate 29 clamps the moving rod 21, thereby driving the deflection of the connecting rod, and the connecting rod slides through the slide 12 and drives the guide rail 13 to deflect, so that the slide 12 is in the deformation area or close to the deformation area, and then the power structure is closed and The extension and retraction of the telescopic rod 27 limits the direction of the connecting rod; at this time, the torsion motor is controlled to continue to rotate forward so that the arc plate 29 fits on the moving rod 21, and the driving gear 31 engages with the moving rod 21, and then the push rod 32 is controlled to extend, and the push rod 32 pushes the sleeve 24 to the clamping plate so that the thread on the clamping plate cooperates with the thread at the end of the fixed rod 20, and then the driving motor 30 is started. The driving motor 30 drives the moving rod 21 to rotate through the driving gear 31, and then controls the extension and retraction of the connecting rod to pull or push the deformation area, and turns off the driving motor 30 after the side plate 2 recovers its deformation; after the concrete solidifies, the push rod 32 is controlled to reset, and then the torsion motor is controlled to reverse to reset the arc plate 29, and then the telescopic rod 27 is controlled to shorten, and then the support 9 is taken out and recycled; then concrete is poured in the rib plate 4.

[0038] In this embodiment, a push rod 32 for pushing the sleeve 24 to move is provided on the side wall of the arc-shaped plate 29 .

[0039] The push rod 32 is provided to push the sleeve 24 to move, so as to avoid the construction workers being unable to move the sleeve 24 due to the narrow space in the adjustment groove.

[0040] In this embodiment, the bottom plate 1, the side plates 2 and the end plates 3 are all printed.

[0041] By means of printing treatment and in combination with the ribs 4, the friction between the post-cast concrete and the shell is increased, thus avoiding delamination and cracking in the later stage.

[0042] A construction method for a UHPC composite beam non-disassembly formwork structure comprises the following steps:

[0043] 1) Prefabrication: In the factory, the bottom plate 1, side plates 2, and end plates 3 are integrally cast to form the shell. After curing, the guide rails 13 and slides 12 are installed on the side plates 2, and the movable rods 21 and rotating rods 22 are connected to the slides 12. The ribs 4 are then cast. After curing, the connecting seats and closing plates 16 are installed. The threaded end of the fixing rod 20 is then passed through the connecting ball and inserted into the movable rod 21.

[0044] 2) Install the combined beam: After hoisting the shell to the installation location, hoist the truss structure, connect and fix the steel beam 5 to the end plate 3, and connect the end of the fixing rod 20 to the corresponding longitudinal beam 7 with a detachable ball joint; insert the driving structure into the adjustment groove and fix it to the rib plate 4, then drive the guide seat 26 to slide through the power structure so that the guide seat 26 is facing the corresponding moving rod 21, and then control the telescopic rod 27 to extend so that the arc plate 29 at the end of the adjustment seat 28 moves to the upper and lower sides of the moving rod 21, and then control the torsion motor to rotate forward so that the arc plate 29 is close to the moving rod 21 but the driving gear 31 is not engaged with the moving rod 21;

[0045] 3) Initial pouring: pour concrete into the shell and vibrate it;

[0046] 4) Adjustment: During the concrete solidification process, if the side panel 2 is deformed, the power structure in the adjacent area is controlled to drive the guide seat 26 to slide and the telescopic rod 27 to extend and retract, and the curved plate 29 clamps the mobile rod 21, thereby driving the deflection of the connecting rod. The connecting rod slides through the slide 12 and drives the guide rail 13 to deflect. When the slide 12 is in the deformation area or close to the deformation area, the power structure and the extension and retraction of the telescopic rod 27 are turned off to limit the direction of the connecting rod. At this time, the torsion motor is controlled to continue to rotate forward so that the curved plate 29 fits on the mobile rod 21, and the driving gear 31 engages with the mobile rod 21. Then, the push rod 32 is controlled to extend. The push rod 32 pushes the sleeve 24 onto the clamping plate 23 so that the thread on the clamping plate 23 engages with the thread at the end of the fixed rod 20. Then, the drive motor 30 is started. The drive motor 30 drives the mobile rod 21 to rotate through the drive gear 31, thereby controlling the extension and retraction of the connecting rod, thereby pulling or pushing the deformation area. After the side panel 2 is restored to its deformation, the drive motor 30 is turned off.

[0047] 5) Secondary pouring: After the concrete solidifies, control the push rod 32 to reset, then control the torsion motor to reverse, reset the arc plate 29, then control the telescopic rod 27 to shorten, and then remove the support 9; then pour concrete in the rib 4 and perform curing.

[0048] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A UHPC composite beam non-disassembly formwork structure, comprising a bottom plate and side plates arranged on both sides, wherein end plates connected to the side plates are provided at both ends of the bottom plate, characterized in that: The facing surfaces of the side panels are provided with a plurality of ribs, and the bottom panel, side panel, end panel and ribs are all made of UHPC; a truss structure is also included, and the truss structure includes four rectangularly distributed steel beams, the ends of the steel beams are connected to the corresponding end panels, a plurality of transverse beams are provided between the laterally adjacent steel beams, and a plurality of longitudinal beams are provided between the vertically adjacent steel beams, the longitudinal beams correspond to the ribs one by one, and a plurality of diagonal braces are obliquely provided between adjacent longitudinal beams; a plurality of connecting seats are provided on the ribs, and connecting rods are provided between the connecting seats and the corresponding longitudinal beams; a longitudinal slot is longitudinally opened at the top of the ribs to communicate with the side panels The adjusting slot has a plurality of through slots toward the truss structure on its side wall, and the connecting seat includes a seat body arranged in the through slot, and a gap is reserved between the seat body and the side wall of the through slot, and the seat body is provided with a spherical cavity with both ends exposed to the seat body, and a mounting ball is rotatably arranged in the spherical cavity, and a connecting hole is provided on the mounting ball; the connecting rod is a telescopic structure, and one end of the connecting rod passes through the corresponding connecting hole and is connected to the sliding seat by a ball hinge, and the other end of the connecting rod is connected to the corresponding longitudinal beam side wall by a detachable ball hinge; a plurality of guide rails slidably connected to the corresponding sliding seat are provided in the adjusting slot, and the guide rails One end is rotatably connected to a rotating shaft connected to the side plate, and the side plate is provided with an annular groove coaxial with the rotating shaft, and the other end of the guide rail is fixed with a limit block slidably connected to the annular groove; a closing plate for blocking the chamber is sleeved on the seat body, and the closing plate is fitted with the side wall of the adjusting groove, and a driving structure for driving the connecting rod to swing and telescope is detachably connected in the adjusting groove; four connecting shafts distributed in a rectangular shape are fixed on the end surface of the closing plate away from the truss structure, and the connecting shafts are rotatably connected to support rods perpendicular to them, and the ends of the support rods are rotatably connected to support shafts parallel to the connecting shafts. The support shaft is fixedly connected to the side wall of the adjusting groove; the connecting rod includes a fixing rod, one end of the fixing rod is connected to the longitudinal beam ball hinge, the other end of the fixing rod passes through the connecting hole and extends into the adjusting groove and is sleeved with a moving rod, the other end of the fixing rod is provided with a thread; the other end of the moving rod is coaxially rotatably provided with a rotating rod connected to the sliding seat ball hinge, the end of the moving rod is hinged with a plurality of clamping plates for clamping the fixing rod, and a torsion spring is provided at the hinge, the contact end surface of the clamping plate and the fixing rod is provided with a thread that matches the thread of the other end of the fixing rod, and a sleeve is slidably sleeved on the moving rod;The drive structure includes a support detachably connected to one side of the adjustment slot, and the support is provided with a plurality of drive units. The drive units include vertically arranged slide rails, each of which is slidably connected to a guide seat, and each of the guide seats is provided with a power structure that drives its movement. A telescopic rod facing the moving rod is fixed to the guide seat, and the end of the telescopic rod is connected to the adjustment seat by a ball joint, and a reset elastic member is provided between the adjustment seat and the telescopic rod. The end of the adjustment seat is symmetrically hinged with an arc plate for clamping the moving rod, and a torsion motor is hingedly provided. The inner curved surface of each arc plate is provided with a mounting slot, and a drive motor is provided in each mounting slot. The output end of each drive motor is provided with a drive gear that meshes with the outer wall of the moving rod.

2. The UHPC composite beam non-disassembly formwork structure according to claim 1, characterized in that: A push rod for pushing the sleeve to move is arranged on the side wall of the arc-shaped plate.

3. The UHPC composite beam non-disassembly formwork structure according to claim 2, characterized in that: The bottom plate, side plates and end plates are all printed.

4. The construction method of a UHPC composite beam non-disassembly formwork structure according to claim 3 is characterized in that: The steps include: 1) Prefabrication: The bottom plate, side plates, and end plates are integrally cast in the factory to form the shell. After curing, guide rails and slides are installed on the side plates, and the moving rod and rotating rod are connected to the slides. The ribs are then cast. After curing, the connecting seat and closing plate are installed. The threaded end of the fixing rod is then passed through the connecting ball and inserted into the moving rod. 2) Install the combined beam: After hoisting the shell to the installation location, hoist the truss structure, connect and fix the steel beam to the end plate, and connect the end of the fixed rod to the corresponding longitudinal beam with a detachable ball joint; insert the drive structure into the adjustment slot and fix it to the rib plate, then use the power structure to drive the guide seat to slide so that the guide seat is facing the corresponding moving rod, and then control the extension of the telescopic rod to move the arc plate at the end of the adjustment seat to the upper and lower sides of the moving rod, and then control the torsion motor to rotate forward so that the arc plate is close to the moving rod but the drive gear is not engaged with the moving rod; 3) Initial pouring: pour concrete into the shell and vibrate it; 4) Adjustment: During the solidification process of concrete, if the side plate is deformed, the power structure in the adjacent area is controlled to drive the guide seat to slide and the telescopic rod to extend and retract, and the curved plate clamps the moving rod, thereby driving the deflection of the connecting rod. The connecting rod slides through the slide and drives the guide rail to deflect, so that the slide is in the deformation area or close to the deformation area, and then the power structure and the telescopic rod are turned off to limit the direction of the connecting rod; at this time, the torsion motor is controlled to continue to rotate forward, so that the curved plate fits on the moving rod, and the driving gear engages with the moving rod, and then the push rod is controlled to extend, and the push rod pushes the sleeve to the clamping plate, so that the thread on the clamping plate matches the thread at the end of the fixed rod, and then the drive motor is started. The drive motor drives the moving rod to rotate through the drive gear, thereby controlling the extension and retraction of the connecting rod, thereby pulling or pushing the deformation area, and the drive motor is turned off after the side plate is restored to its deformation; 5) Secondary pouring: After the concrete solidifies, control the push rod to reset, then control the torsion motor to reverse, reset the curved plate, then control the telescopic rod to shorten, and then remove the support; then pour concrete in the rib plate and perform maintenance.

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