A formwork support system for an irregular rotating structure and its construction method

Abstract

The present invention discloses a formwork support system for an irregular rotating structure and a construction method thereof, which belongs to the technical field of building construction, and comprises a plurality of concrete segments in a spiral ascending shape and a formwork group for casting the concrete segments, wherein the concrete segments are all pre-buried with hanging supports, and the highest ends of the hanging supports all pass upwardly out of the concrete segments and extend into the concrete segments above; the formwork group is arranged on the side wall of the highest end concrete segment, and a connecting groove is provided on a side of the formwork group close to the concrete segment, and the hanging supports in the concrete segment extend into the formwork group through the connecting groove and are detachably connected to the formwork group, and the formwork group is also provided with the same hanging supports, and one end of the hanging supports away from the concrete segment passes upwardly out of the formwork group; adjacent hanging supports are detachably connected via an angle adjustment device, and the purpose of the present invention is to solve the problem that a large number of temporary support systems are required during the construction of traditional irregular rotating staircase structures.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a template support system for an irregular rotating structure and a construction method thereof. Background Art

[0002] Reinforced concrete is widely used in building structures because of its good stress-bearing performance. However, with the continuous improvement of architectural aesthetics, traditional concrete configurations can no longer meet people's needs. For this reason, various special-shaped structures continue to appear, among which irregular spiral staircase structures are extremely beautiful and are commonly used in architectural design. However, since irregular spiral staircase structures are different from traditional concrete structures, there are many problems in the construction process of irregular spiral staircase structures.

[0003] Among them, due to the high height and thickness of the traditional irregular spiral staircase structure, in the traditional construction process, a large number of temporary support systems need to be set up on the ground to support the formwork. However, the setting up of the temporary support system is affected by the construction environment, and there are problems such as difficulty in setting up, difficulty in turnover, and time-consuming. Summary of the invention

[0004] In view of this, the present invention discloses a formwork support system for an irregular rotating structure and a construction method thereof, which aims to solve the problem that a large number of temporary support systems are required during the construction of traditional irregular rotating staircase structures.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A formwork support system for an irregular rotating structure comprises a plurality of spirally ascending concrete segments and a formwork group for casting the concrete segments, wherein the concrete segments are all pre-embedded with hanging supports, and the highest ends of the hanging supports are all passed upward through the concrete segments and extended into the concrete segments above; the formwork group is arranged on the side wall of the highest end concrete segment, and a connecting groove is provided on the side of the formwork group close to the concrete segment, and the hanging supports in the concrete segment are extended into the formwork group through the connecting groove and are detachably connected to the formwork group, and the same hanging supports are also arranged in the formwork group, and the end of the hanging supports away from the concrete segment passes upward through the formwork group; adjacent hanging supports are detachably connected via an angle adjustment device.

[0007] Assemble the formwork group based on the formed structure, and install the steel reinforcement cage and the suspension support member inside the formwork group to ensure that the highest end of the suspension support member extends out of the formwork group; pour the concrete segment fixed on the formed structure. After the concrete segment is formed, remove the formwork group; when pouring the next concrete segment, sleeve the formwork group on the suspension support member protruding from the concrete segment and fix the formwork group to the suspension support member; install the steel reinforcement cage and the suspension support member inside the formwork group again to ensure that the end of the suspension support member away from the concrete segment penetrates upward through the formwork group, and install an angle adjustment device between the suspension support member inside the formwork group and the suspension support member inside the concrete segment to adjust the angle of the suspension support member inside the formwork group, and then carry out the pouring.

[0008] In the scheme, the self-bearing construction and the force during the pouring stage of the formed concrete segment are utilized, and there is no need to additionally set up a large number of vertical support systems. At the same time, the suspension support member does not need to be disassembled, but serves as the transverse reinforcement of the concrete segment, achieving the purpose of saving time and effort while strengthening the bearing capacity of the connection between adjacent concrete segments and preventing the connection of the concrete segments from breaking; at the same time, without setting up a vertical support system, it is also possible not to occupy the surrounding construction area and avoid interfering with the normal construction of the surrounding area.

[0009] Furthermore, the angle adjustment device includes a base detachably connected to the end of the highest part of the suspension support member, a connecting ball is fixed on the base, a connecting seat is detachably connected to the end of the lowest part of the suspension support member, a connecting hole for accommodating the connecting ball is opened on the connecting seat, a plurality of grooves facing the connecting ball are opened on the periphery of the connecting hole, a clamping block for clamping the connecting ball is slidably connected in each groove, and a return spring is arranged between the clamping block and the groove; an adjustment device for driving the clamping block to slide is arranged on the part of the suspension support member extending out of the formwork group.

[0010] By forming a spherical hinge relationship between the connecting ball and the connecting seat, the angle between the suspension support member inside the formwork group and the suspension support member inside the concrete segment can be adjusted, avoiding the influence of different rotation angles and inclination angles of adjacent concrete segments on the load capacity of the irregular spiral staircase structure in the irregular spiral staircase structure.

[0011] Furthermore, the adjusting device includes a cavity provided inside the suspension support member. A coaxial conducting rod is rotatably connected inside the cavity. A through groove communicating with the cavity is formed on the side wall of the suspension support member. One end of the conducting rod is fixed with a handle extending out of the through groove, and the handle is located outside the template group. A through hole coaxial with the cavity is formed on the connecting seat. The through hole and the groove are communicated with each other. A rotating shaft is threadedly connected inside the through hole, and a gap is reserved between the rotating shaft and the bottom of the through hole. A rectangular hole is formed at one end of the rotating shaft, and an annular groove is formed at the other end of the rotating shaft. A plurality of uniformly distributed connecting plates are slidably connected inside the annular groove. The end of the connecting plate extends into the groove and abuts against the end of the clamping block. One end of the connecting plate facing the connecting ball is wedge-shaped. The other end of the conducting rod extends into the rectangular hole and fits with its outer shape.

[0012] During the installation of the template group and the suspension support member, ensure that the conducting rod is inserted into the rectangular hole. After the angle adjustment is completed, rotate the conducting rod counterclockwise through the handle. The conducting rod drives the rotating shaft to rotate counterclockwise through the cooperation with the rectangular hole, causing the rotating shaft to move towards the connecting ball direction. At the same time, the rotating shaft drives the connecting plate to move towards the clamping block direction. By squeezing the clamping block through the connecting plate, the clamping block is urged to move towards the connecting ball direction and clamp the connecting ball, locking the angle adjustment device. When adjustment is required, only rotate the conducting rod clockwise through the handle. The conducting rod drives the rotating shaft to rotate in the reverse direction. At this time, the rotating shaft drives the connecting plate to disengage from the clamping block, causing the clamping block to move away from the connecting ball direction, loosening the fixation of the connecting ball, and thus loosening the angle adjustment device. Since the handle is arranged outside the template group, even during the pouring period when the concrete is not completely solidified, the angle of the suspension support member inside the template group can be adjusted from the outside, thereby improving the forming accuracy of the concrete segment.

[0013] Furthermore, moving grooves parallel to the groove are formed on both sides of the connecting seat. Moving seats are slidably connected inside the moving grooves. An auxiliary support rod is ball-jointed on the moving seat, and the other end of the auxiliary support rod is ball-jointed with the base. Sliding grooves facing the moving seat are formed on the side walls on both sides of the through hole. Positioning plates are slidably connected inside the sliding grooves. A plurality of positioning holes communicating with the sliding grooves are formed on the moving grooves. A plurality of limiting holes are formed on the moving seat. A plurality of positioning pins extending out of the positioning holes and capable of being inserted into the limiting holes are arranged on the positioning plate. The thickness of the positioning plate gradually increases along the direction close to the connecting ball, and a return spring is arranged between the positioning plate and the sliding groove.

[0014] When the connecting seat is deflected, the auxiliary support rods on both sides are adaptively deflected, cooperating with the sliding of the moving seat to maintain the connection between the auxiliary support rods and the two ends of the connecting seat; then the transmission rod is rotated counterclockwise by the handle, and the transmission rod drives the rotating shaft to rotate counterclockwise by cooperating with the rectangular hole, so that the rotating shaft moves toward the direction of the connecting ball, and when the rotating shaft moves, it squeezes the positioning plates on both sides, so that the limit pins on the positioning plates are inserted into the limit holes from the positioning holes, locking the moving seat, thereby fixing the auxiliary support rod. At this time, the auxiliary support rod plays the role of supporting the connection strength between the support base and the connecting seat, that is, strengthening the connection strength between the suspension support in the formwork group and the suspension support in the concrete segment, thereby strengthening the load of the suspension support in the formwork group.

[0015] Furthermore, a plurality of diagonal braces are pre-embedded on the side wall at the highest end of the concrete segment, and the diagonal braces are fixedly connected to the bottom of the corresponding suspension support member.

[0016] By setting up the diagonal brace, the connection strength between the suspension support and the concrete segment is strengthened, and the bending resistance of the suspension support can also be improved.

[0017] A construction method for a formwork support system for an irregular rotating structure comprises the following steps:

[0018] 1) Pouring foundation: Assemble the formwork group based on the formed structure, and install the steel cage and the hanging support in the formwork group, ensuring that the highest end of the hanging support extends out of the formwork group; pour the concrete segment fixed on the formed structure, and remove the formwork group after the concrete segment is formed;

[0019] 2) Step-by-step pouring: Set the formwork group on the suspension support extending from the concrete segment, and fix the formwork group to the suspension support; install the steel cage and the suspension support in the formwork group again, ensure that the end of the suspension support away from the concrete segment passes through the formwork group upward, and install an angle adjustment device between the suspension support in the formwork group and the suspension support in the concrete segment, ensure that the conduction rod is inserted into the rectangular hole, and by deflecting the suspension support in the formwork group, the suspension support drives the connecting seat to deflect, thereby realizing the angle adjustment of the suspension support in the formwork group; when the connecting seat deflects, the auxiliary support rods on both sides deflect adaptively, cooperate with the sliding of the moving seat to maintain The auxiliary support rod is connected to the two ends of the connecting seat; then the transmission rod is rotated counterclockwise by the handle, and the transmission rod drives the rotating shaft to rotate counterclockwise by cooperating with the rectangular hole, so that the rotating shaft moves toward the connecting ball. When the rotating shaft moves, it squeezes the positioning plates on both sides, so that the limit pins on the positioning plates are inserted from the positioning holes into the limit holes, and the moving seat is locked, thereby fixing the auxiliary support rod; at the same time, the rotating shaft squeezes the clamping block through the connecting plate, so that the clamping block moves toward the connecting ball and clamps the connecting ball, locking the angle adjustment device; at the same time, the angle adjustment device and the connecting parts of the adjacent suspension supports are treated without bonding; then the concrete segment is poured, and when the concrete segment is formed, the template group is removed;

[0020] 3) Angle adjustment of the suspension support: During pouring, as the concrete is injected, the weight of the formwork group increases, increasing the load on the suspension support of the concrete segment, which easily causes the corresponding suspension support to bend and deform, resulting in misalignment of the formwork group and affecting the pouring accuracy. At this time, turn the transmission rod through the handle, and use the cooperation between the transmission rod and the rectangular hole to drive the rotating shaft to rotate clockwise, so that the rotating shaft moves away from the connecting ball. At this time, the positioning plate loses the extrusion of the rotating shaft, and the positioning plate resets under the action of the return spring, so that the limit pin on the positioning plate disengages from the limit hole, releasing the lock on the moving seat, so that the auxiliary support rod can be adjusted. At the same time, the rotating shaft drives the connecting plate to disengage from the clamping block, so that the clamping block moves away from the connecting ball, loosening the fixation of the connecting ball, and thus loosening the angle adjustment device, enabling it to adjust the angle of the suspension support within the formwork group during pouring, thereby lifting the formwork group and prompting the formwork group to reset;

[0021] 4) End of pouring: Repeat steps 2) and 3) until the concrete structure is poured.

[0022] Other advantages, objectives, and features of the present invention will be described in the subsequent specification, and to some extent will be obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the objectives, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0025] Figure 2 It is a transverse cross-sectional view of an embodiment of the present invention;

[0026] Figure 3 It is Figure 2 an enlarged schematic view of part A in

[0027] The reference signs in the drawings are as follows: concrete segment 1, formwork group 2, suspension support 3, base 4, connecting ball 5, clamping block 6, return spring 7, transmission rod 8, handle 9, rotating shaft 10, rectangular hole 11, connecting plate 12, moving groove 13, moving seat 14, auxiliary support rod 15, positioning plate 16, positioning hole 17, limit hole 18, positioning pin 19, connecting seat 20. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] As Figures 1 to 3 shown:

[0029] A formwork support system for an irregular rotating structure, comprising a number of concrete segments 1 in a spiral ascending shape and a formwork group 2 for pouring the concrete segments 1. Suspended support members 3 are embedded in each of the concrete segments 1. The highest ends of the suspended support members 3 all penetrate upward through the concrete segments 1 and extend into the upper concrete segments 1. The formwork group 2 is arranged on the side wall of the highest concrete segment 1. A connection groove is provided on the side of the formwork group 2 close to the concrete segment 1. The suspended support members 3 in the concrete segment 1 extend into the formwork group 2 through the connection groove and are detachably connected to the formwork group 2. The same suspended support members 3 are also arranged in the formwork group 2. One end of the suspended support member 3 far from the concrete segment 1 penetrates upward through the formwork group 2. Adjacent suspended support members 3 are detachably connected by an angle adjustment device.

[0030] Assemble the formwork group 2 based on the formed structure, and install the steel reinforcement cage and the suspended support members 3 in the formwork group 2 to ensure that the highest ends of the suspended support members 3 extend out of the formwork group 2. Pour the concrete segment 1 fixed on the formed structure. After the concrete segment 1 is formed, remove the formwork group 2. When pouring the next concrete segment 1, sleeved the formwork group 2 on the suspended support member 3 extending out of the concrete segment 1 and fix the formwork group 2 to the suspended support member 3. Install the steel reinforcement cage and the suspended support members 3 in the formwork group 2 again to ensure that one end of the suspended support member 3 far from the concrete segment 1 penetrates upward through the formwork group 2, and install an angle adjustment device between the suspended support member 3 in the formwork group 2 and the suspended support member 3 in the concrete segment 1 to adjust the angle of the suspended support member 3 in the formwork group 2, and then carry out the pouring.

[0031] In the solution, the formed concrete segment 1 itself bears the force during the construction and pouring stages, eliminating the need to erect a large number of additional vertical support systems. At the same time, the suspended support members 3 do not need to be disassembled but act as the transverse bars of the concrete segment 1, achieving the purpose of saving time and effort while strengthening the bearing capacity at the connection of adjacent concrete segments 1 and preventing the connection of concrete segments 1 from breaking. At the same time, without erecting a vertical support system, it is also possible not to occupy the surrounding construction area and avoid interfering with the normal construction of the surrounding area.

[0032] In this embodiment, the angle adjustment device includes a base 4. The base 4 is detachably connected to the end of the highest part of the suspended support member 3 by bolts. A connection ball 5 is welded on the base 4. A connection seat 20 is detachably connected to the end of the lowest part of the suspended support member 3 by bolts. A connection hole for accommodating the connection ball 5 is provided on the connection seat 20. A number of grooves facing the connection ball 5 are provided on the periphery of the connection hole. A clamping block 6 for clamping the connection ball 5 is slidably connected in each of the grooves. A return spring 7 is provided between the clamping block 6 and the groove. An adjustment device for driving the clamping block 6 to slide is arranged on the part of the suspended support member 3 extending out of the formwork group 2.

[0033] A spherical hinge relationship is formed by connecting the ball 5 and the connecting seat 20, enabling the angle adjustment between the suspension support member 3 in the formwork group 2 and the suspension support member 3 in the concrete segment 1, avoiding the influence on the load-bearing capacity of the irregular spiral staircase structure due to different rotation angles and inclination angles of adjacent concrete segments 1 in the irregular spiral staircase structure.

[0034] In this embodiment, the adjustment device includes a cavity provided inside the suspension support member 3. A coaxial conduction rod 8 is rotatably connected inside the cavity. A through groove communicating with the cavity is provided on the side wall of the suspension support member 3. One end of the conduction rod 8 is fixed with a handle 9 extending out of the through groove, and the handle 9 is located outside the formwork group 2. A through hole coaxial with the cavity is provided on the connecting seat 20. The through hole and the groove are communicated with each other, and a rotating shaft 10 is threadedly connected inside the through hole. A gap is reserved between the rotating shaft 10 and the bottom of the through hole. A rectangular hole 11 is provided at one end of the rotating shaft 10, and an annular groove is provided at the other end of the rotating shaft 10. A plurality of uniformly distributed connecting plates 12 are slidably connected inside the annular groove. The end of the connecting plate 12 extends into the groove and fits with the end of the clamping block 6. One end of the connecting plate 12 facing the ball 5 is wedge-shaped. The other end of the conduction rod 8 extends into the rectangular hole 11 and fits with its outer shape. The adjustment device and the end of the suspension support member 3 are treated without adhesion to prevent concrete filling from affecting the use of the adjustment device.

[0035] During the installation of the formwork group 2 and the suspension support member 3, ensure that the conduction rod 8 is inserted into the rectangular hole 11. After the angle adjustment is completed, rotate the conduction rod 8 counterclockwise through the handle 9. The conduction rod 8 drives the rotating shaft 10 to rotate counterclockwise through the cooperation with the rectangular hole 11, causing the rotating shaft 10 to move in the direction of the ball 5. At the same time, the rotating shaft 10 drives the connecting plate 12 to move towards the clamping block 6. By squeezing the clamping block 6 through the connecting plate 12, the clamping block 6 is urged to move towards the ball 5 and clamp the ball 5, locking the angle adjustment device. When adjustment is required, only rotate the conduction rod 8 clockwise through the handle 9. The conduction rod 8 drives the rotating shaft 10 to rotate in the reverse direction. At this time, the rotating shaft 10 drives the connecting plate 12 to disengage from the clamping block 6, causing the clamping block 6 to move away from the ball 5, loosening the fixation of the ball 5, and thus loosening the angle adjustment device. Since the handle 9 is provided outside the formwork group 2, even during the pouring period when the concrete is not completely solidified, the angle of the suspension support member 3 in the formwork group 2 can be adjusted from the outside, thereby improving the forming accuracy of the concrete segment 1.

[0036] In this embodiment, movable grooves 13 parallel to the grooves are provided on both sides of the connecting seat 20, and movable seats 14 are slidably connected in the movable grooves 13. The movable seat 14 is ball-jointed with an auxiliary support rod 15, and the other end of the auxiliary support rod 15 is ball-jointed with the base 4; sliding grooves facing the movable seat 14 are provided on the side walls on both sides of the through hole, and positioning plates 16 are slidably connected in the sliding grooves, and the movable groove 13 is provided with a plurality of positioning holes 17 connected with the sliding grooves, and the movable seat 14 is provided with a plurality of limiting holes 18, and the positioning plate 16 is provided with a plurality of positioning pins 19 extending out of the positioning holes 17 and capable of being inserted into the limiting holes 18; the thickness of the positioning plate 16 gradually increases in the direction approaching the connecting ball 5, and a reset spring 7 (not shown in the figure) is fixed between the positioning plate 16 and the sliding groove.

[0037] When the connecting seat 20 deflects, the auxiliary support rods 15 on both sides adaptively deflect, cooperate with the sliding of the moving seat 14, and maintain the connection between the auxiliary support rods 15 and the two ends of the connecting seat 20; then the conduction rod 8 is rotated counterclockwise through the handle 9, and the conduction rod 8 drives the rotating shaft 10 to rotate counterclockwise by cooperating with the rectangular hole 11, so that the rotating shaft 10 moves toward the connecting ball 5. When the rotating shaft 10 moves, it squeezes the positioning plates 16 on both sides, so that the limit pins on the positioning plates 16 are inserted from the positioning holes 17 into the limit holes 18, and the moving seat 14 is locked, thereby fixing the auxiliary support rods 15. At this time, the auxiliary support rods 15 play the role of supporting the connection strength between the base 4 and the connecting seat 20, that is, strengthening the connection strength between the suspension support 3 in the formwork group 2 and the suspension support 3 in the concrete segment 1, thereby strengthening the load of the suspension support 3 in the formwork group 2.

[0038] In this embodiment, a plurality of diagonal braces (not shown in the figure) are pre-embedded on the side wall at the highest end of the concrete segment 1 , and the diagonal braces are fixedly connected to the bottom of the corresponding suspension support member 3 .

[0039] By providing the diagonal brace, the connection strength between the suspension support 3 and the concrete segment 1 is strengthened, and the bending resistance of the suspension support 3 can also be improved.

[0040] A construction method for a formwork support system for an irregular rotating structure comprises the following steps:

[0041] 1) Pouring foundation: assemble the formwork group 2 based on the formed structure, and install the steel cage and the suspension support 3 in the formwork group 2, ensuring that the highest end of the suspension support 3 extends out of the formwork group 2; pour the concrete segment 1 fixed on the formed structure, and remove the formwork group 2 after the concrete segment 1 is formed;

[0042] 2) Gradual pouring: Set two sets of formwork groups 2 on the suspension supports 3 protruding from the concrete segment 1, and fix the formwork groups 2 to the suspension supports 3. Install the steel reinforcement cage and the suspension supports 3 inside the formwork groups 2 again, ensuring that one end of the suspension support 3 far from the concrete segment 1 passes through the formwork groups 2 upward, and install an angle adjustment device between the suspension support 3 inside the formwork groups 2 and the suspension support 3 inside the concrete segment 1. Ensure that the transmission rod 8 is inserted into the rectangular hole 11. By deflecting the suspension support 3 inside the formwork groups 2, the suspension support 3 drives the connecting seat 20 to deflect, thereby realizing the angle adjustment of the suspension support 3 inside the formwork groups 2. When the connecting seat 20 deflects, the auxiliary support rods 15 on both sides deflect adaptively, and cooperate with the sliding of the moving seat 14 to maintain the connection between the auxiliary support rods 15 and both ends of the connecting seat 20. Then, rotate the transmission rod 8 counterclockwise through the handle 9. The transmission rod 8 drives the rotating shaft 10 to rotate counterclockwise through the cooperation with the rectangular hole 11, so that the rotating shaft 10 moves towards the connecting ball 5. When the rotating shaft 10 moves, it squeezes the positioning plates 16 on both sides, so that the limit pins on the positioning plates 16 are inserted into the limit holes 18 from the positioning holes 17 to lock the moving seat 14, thereby fixing the auxiliary support rods 15. At the same time, the rotating shaft 10 squeezes the clamping block 6 through the connecting plate 12, prompting the clamping block 6 to move towards the connecting ball 5 and clamp the connecting ball 5 to lock the angle adjustment device. At the same time, perform non-bonding treatment on the angle adjustment device and the connecting part of the adjacent suspension supports 3. Then pour the concrete segment 1. After the concrete segment 1 is formed, remove the formwork groups 2.

[0043] 3) Angle adjustment of the suspension support 3: During pouring, as the concrete is injected, the weight of the formwork groups 2 increases, increasing the load on the suspension supports 3 of the concrete segment 1, which easily causes the corresponding suspension supports 3 to bend and deform, resulting in the dislocation of the formwork groups 2 and affecting the pouring structure form. At this time, rotate the transmission rod 8 through the handle 9, and use the cooperation between the transmission rod 8 and the rectangular hole 11 to drive the rotating shaft 10 to rotate clockwise, so that the rotating shaft 10 moves away from the connecting ball 5. At this time, the positioning plate 16 loses the extrusion of the rotating shaft 10, and the positioning plate 16 resets under the action of the return spring 7, so that the limit pin on the positioning plate 16 disengages from the limit hole 18, releasing the lock on the moving seat 14, so that the auxiliary support rods 15 can be adjusted. At the same time, the rotating shaft 10 drives the connecting plate 12 to disengage from the clamping block 6, so that the clamping block 6 moves away from the connecting ball 5, loosening the fixation of the connecting ball 5, thereby loosening the angle adjustment device, enabling it to adjust the angle of the suspension support 3 inside the formwork groups 2 during pouring, thereby lifting the formwork groups 2 and prompting the formwork groups 2 to reset.

[0044] 4) End of pouring: Repeat steps 2) and 3) until the concrete structure is poured.

[0045] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. 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 formwork support system for an irregular rotating structure, comprising a number of concrete segments in a spiral ascending shape and a formwork group for pouring the concrete segments, characterized in that: Each concrete segment is pre-embedded with a suspension support member. The highest end of the suspension support member penetrates upward through the concrete segment and extends into the upper concrete segment. The formwork group is arranged on the side wall of the highest-end concrete segment. A connection groove is formed on the side of the formwork group close to the concrete segment. The suspension support member in the concrete segment extends into the formwork group through the connection groove and is detachably connected to the formwork group. The same suspension support member is also arranged in the formwork group, and the end of the suspension support member away from the concrete segment penetrates upward through the formwork group. The adjacent suspension support members are detachably connected by an angle adjustment device.

2. The formwork support system for an irregular rotation structure according to claim 1, characterized in that: The angle adjustment device includes a base detachably connected to the end of the highest part of the suspension support member. A connection ball is fixed on the base. A connection seat is detachably connected to the end of the lowest part of the suspension support member. A connection hole for accommodating the connection ball is formed on the connection seat. A plurality of grooves facing the connection ball are formed on the periphery of the connection hole. A clamping block for clamping the connection ball is slidably connected in each groove. A return spring is arranged between the clamping block and the groove. An adjustment device for driving the clamping block to slide is arranged on the part of the suspension support member extending out of the formwork group.

3. The formwork support system for an irregular rotation structure according to claim 2, wherein: The adjustment device includes a cavity arranged inside the suspension support member. A coaxial conduction rod is rotatably connected in the cavity. A through groove communicating with the cavity is formed on the side wall of the suspension support member. One end of the conduction rod is fixed with a handle extending out of the through groove, and the handle is located outside the formwork group. A through hole coaxial with the cavity is formed on the connection seat. The through hole is communicated with each groove. A rotating shaft is threadedly connected in the through hole, and a gap is reserved between the rotating shaft and the bottom of the through hole. A rectangular hole is formed at one end of the rotating shaft, and an annular groove is formed at the other end of the rotating shaft. A plurality of uniformly distributed connecting plates are slidably connected in the annular groove. The end of the connecting plate extends into the groove and fits with the end of the clamping block. One end of the connecting plate facing the connection ball is wedge-shaped. The other end of the conduction rod extends into the rectangular hole and is adapted to its shape.

4. A template support system for an irregular rotation structure according to claim 3, characterized in that: Moving grooves parallel to the grooves are formed on both sides of the connection seat. A moving seat is slidably connected in each moving groove. An auxiliary support rod is ball-jointed on the moving seat, and the other end of the auxiliary support rod is ball-jointed with the base. Chute grooves facing the moving seat are formed on the side walls on both sides of the through hole. A positioning plate is slidably connected in each chute groove. A plurality of positioning holes communicating with the chute grooves are formed on the moving groove. A plurality of limiting holes are formed on the moving seat. A positioning pin extending out of the positioning hole and capable of inserting into the limiting hole is arranged on the positioning plate. The thickness of the positioning plate gradually increases along the direction close to the connection ball, and a return spring is arranged between the positioning plate and the chute groove.

5. The formwork support system for an irregular rotation structure according to claim 4, characterized in that: A plurality of diagonal bracing frames are pre-embedded on the side wall of the highest end of the concrete segment, and the diagonal bracing frames are fixedly connected to the bottom of the corresponding suspension support members.

6. The construction method of a template support system for an irregular rotation structure according to claim 5, characterized in that, It includes the following steps: 1). Pour the foundation: Assemble the formwork group based on the formed structure, install the steel reinforcement cage and the suspension support member in the formwork group, and ensure that the highest end of the suspension support member extends out of the formwork group. Pour the concrete segment fixed on the formed structure. After the concrete segment is formed, remove the formwork group. 2) Progressive pouring: Set the formwork group on the hanging support members protruding from the concrete segment, and fix the formwork group to the hanging support members. Install the steel reinforcement cage and the hanging support members in the formwork group again, ensuring that the end of the hanging support member away from the concrete segment penetrates upward through the formwork group. Install an angle adjustment device between the hanging support member in the formwork group and the hanging support member in the concrete segment, ensure that the conduction rod is inserted into the rectangular hole, and deflect the hanging support member in the formwork group. The hanging support member drives the connecting seat to deflect, thereby realizing the angle adjustment of the hanging support member in the formwork group. When the connecting seat deflects, the auxiliary support rods on both sides deflect adaptively, and cooperate with the sliding of the moving seat to maintain the connection between the auxiliary support rods and both ends of the connecting seat. Then, turn the conduction rod counterclockwise through the handle. The conduction rod drives the rotating shaft to rotate counterclockwise through the cooperation with the rectangular hole, so that the rotating shaft moves toward the connecting ball. When the rotating shaft moves, it squeezes the positioning plates on both sides, so that the limit pins on the positioning plates are inserted from the positioning holes into the limit holes to lock the moving seat, thereby fixing the auxiliary support rods. At the same time, the rotating shaft squeezes the clamping block through the connecting plate, prompting the clamping block to move toward the connecting ball and clamp the connecting ball to lock the angle adjustment device. At the same time, perform a non-bonding treatment on the angle adjustment device and the connection part of the adjacent hanging support members. Then carry out the pouring of the concrete segment. After the concrete segment is formed, remove the formwork group. 3) Angle adjustment of the hanging support member: During pouring, as the concrete is injected, the weight of the formwork group increases, increasing the load on the hanging support members of the concrete segment, which is likely to cause the corresponding hanging support members to bend and deform, resulting in the dislocation of the formwork group and affecting the pouring accuracy. At this time, turn the conduction rod through the handle, and use the cooperation between the conduction rod and the rectangular hole to drive the rotating shaft to rotate clockwise, so that the rotating shaft moves away from the connecting ball. At this time, the positioning plate loses the extrusion of the rotating shaft, and the positioning plate resets under the action of the return spring, so that the limit pin on the positioning plate disengages from the limit hole, releasing the lock on the moving seat, so that the auxiliary support rod can be adjusted. At the same time, the rotating shaft drives the connecting plate to disengage from the clamping block, so that the clamping block moves away from the connecting ball, loosening the fixation of the connecting ball, thereby loosening the angle adjustment device, enabling it to adjust the angle of the hanging support member in the formwork group during pouring, thereby lifting the formwork group and prompting the formwork group to reset. 4) End of pouring: Repeat steps 2) and 3) until the concrete structure is poured.

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