A curved beam formwork structure and method

Abstract

The application relates to the field of arc beam construction, and in particular to a curved beam formwork structure and method, which includes an arc base plate, a plurality of arc base plates are spliced ​​in a circular ring shape, a plurality of radial adjustment seats sliding along the radial direction of the arc base plate are slidably arranged on the arc base plate, an adjustment control member for controlling the sliding of the radial adjustment seat is arranged on the arc base plate, a support column is rotatably arranged on the radial adjustment seat, and a plurality of the support columns are used to contact the curved beam together. The application has the effect of improving the versatility and turnover of the curved beam formwork structure.

Description

Technical Field

[0001] The present application relates to the field of arc beam construction, and in particular to an arc beam formwork structure and method. Background Art

[0002] Curved beams are a commonly used type of beam in construction. Due to their beautiful appearance and excellent pressure dispersion performance, they are often used in office buildings, high-tech buildings and factory sheds. During the construction process, curved beams often use fixed templates to determine their position, and then after construction through welding and other methods, the fixed templates are removed. The fixed templates can be repeatedly recycled on the construction site, which is energy-saving, environmentally friendly, low-cost and fast in construction.

[0003] However, the manufacture of standard formwork often requires the adaptation of the size and curvature of the curved beam according to the construction drawings in advance, and the drawings of the standard formwork are drawn through CAD and other drawing software, and then customized by the manufacturer. The basic standard formwork can only be used in the current construction. Once the construction is completed, it will be dismantled and destroyed. Although it can be reused in the same construction site, it has poor turnover in the construction of different buildings, and it is customized and lacks versatility. Summary of the invention

[0004] In order to improve the problem of lack of universality of the standardized formwork, the present application provides a curved beam formwork structure and method.

[0005] The application provides a curved beam formwork structure, which adopts the following technical solution:

[0006] A curved beam formwork structure comprises a curved base plate, a plurality of the curved base plates are spliced ​​together to form a circular ring, a plurality of radial adjustment seats are slidably arranged on the curved base plate and slide radially along the curved base plate, an adjustment control member is arranged on the curved base plate for controlling the sliding of the radial adjustment seat, a support column is rotatably arranged on the radial adjustment seat, and the plurality of support columns are used to contact the curved beam together.

[0007] By adopting the above technical solution and adjusting the position of the support column, the curved beams with different curvatures can be clamped and fixed, which expands the scope of application, improves versatility, and is more environmentally friendly without the need to re-order for each construction project.

[0008] Optionally, a transverse adjustment seat is slidably arranged on the radial adjustment seat, the sliding direction of the transverse adjustment seat is perpendicular to the sliding direction of the radial adjustment seat, a transverse control member for controlling the sliding of the transverse adjustment seat is arranged on the radial adjustment seat, and the support column is rotatably arranged on the transverse adjustment seat.

[0009] By adopting the above technical solution, the adjustable range of the support column position is greatly expanded through the sliding direction perpendicular to the radial adjustment seat, further expanding the scope of application.

[0010] Optionally, a plurality of end seats slidingly sliding along the radial direction of the curved substrate are slidably provided on the curved substrate, and an end control member for controlling the sliding of the end seat is also provided on the curved substrate, an end column is rotatably provided on the end seat, a flexible support plate is provided between the end columns at both ends of the curved substrate, an installation cavity for placing an arc beam is formed between the flexible support plates, a plurality of the support columns are jointly supported on the flexible support plate to adjust the curvature of the flexible support plate, and the flexible support plate is supported on the arc beam.

[0011] By adopting the above technical solution, the support column is used to contact the flexible support plate to change the curvature angle of the flexible support plate, and then the standard flexible support plate is fitted and contacted with the arc beam to achieve fixation. At the same time, the fitting method can more intuitively observe whether there is a problem with the arc beam, further improving efficiency; at the same time, the initial curvature of the flexible support plate can be changed by rotating the end column, further expanding the adjustable range of the angle.

[0012] Optionally, a limiting strip is provided on the flexible support plate, and a limiting groove is provided on the support column for the limiting strip to slide therein, the opening surface diameter of the limiting groove is smaller than the end diameter of the limiting strip extending into the limiting groove, so that the limiting strip is difficult to be pulled out of the limiting groove, and the extension direction of the limiting groove is opened along an arc so that the flexible support plate can change its curvature.

[0013] By adopting the above technical solution, the limit groove clamps and slides the limit strip, so that the support column can not only resist and push the flexible support plate, but also pull the flexible support plate, further expanding the curvature range that the flexible support plate can achieve, and further expanding the scope of application of different curved beams.

[0014] Optionally, an angle adjustment groove is opened on the inner wall of the limit groove, an adjustment block is lifted and lowered in the angle adjustment groove, a flexible layer is arranged on the adjustment block, and the flexible layer is used to contact with the limit strip and squeeze the limit strip to move deeper into the limit slot.

[0015] By adopting the above technical solution, the angle of the flexible support plate is changed by pressing down the flexible layer in combination with the inclination of the outer wall of the limit strip itself, that is, when the flexible layer is pressed down to apply external force to the inclined outer wall of the limit strip, a tendency force is generated to displace the limit strip in the direction of the limit groove, and since the limit groove is extended in an arc shape, the middle section resists the limit strip, making it difficult for the limit strip here to continue to go deeper, while the limit strips at both ends of the limit groove can continue to go deeper, at which time the limit strip is bent, so that the arc of the flexible support plate can be adjusted more finely.

[0016] Optionally, a worm and a plurality of worm wheels meshing with the worm are rotatably arranged on the end column, a control gear is arranged on the worm wheel, a plurality of control grooves for meshing with the control gear are opened on the flexible support plate, and the plurality of control gears are clamped on both sides of the flexible support plate.

[0017] By adopting the above technical solution, anti-reversal is achieved through the cooperation of the worm gear, and the adjustment of the length of the flexible support plate is realized, which is more convenient and quick, and the application range of arc beams with different curvatures is expanded.

[0018] Optionally, a stabilizing bolt is threadedly connected to the end column, and a resistance groove is provided at the bottom of the end column. A resistance block is slidably arranged in the resistance groove and slides in and out of the resistance groove. A limiting block is arranged on the resistance block, and a limiting sliding groove is provided on the inner wall of the resistance groove for the limiting block to slide in so as to limit the rotation of the resistance block. The stabilizing bolt resists against the resistance block to push the resistance block to slide out of the resistance groove, so that the resistance block is pressed tightly against the end seat to limit the rotation of the end column.

[0019] By adopting the above technical scheme, the sliding of the resistance block is limited by the limit block and the limit slot, and at the same time, the rotational bias force generated when the stabilizing bolt is rotated downward is offset by the limit of the limit block and the limit slot, so that the resistance block only has a downward force to press against the end seat, and no rotational force is generated, which causes the probability of the end column rotating and causing angular deviation during the pressing process, thereby improving accuracy and reducing interference.

[0020] This application provides a curved beam construction method, which adopts the following technical solution:

[0021] A curved beam construction method, comprising:

[0022] Select the required number of curved substrates and splice them;

[0023] Adjust the end seat and rotate the worm to adjust the length of the flexible support plate between the end columns;

[0024] Adjust the lateral adjustment seat and the radial adjustment seat to adjust the position of the support column;

[0025] Checking the curvature of the flexible support plate supported by the plurality of support columns;

[0026] After passing the test, the arc beam is placed in place. If the arc beam fits the qualified flexible support plate, the arc beam is qualified. After the arc beam is placed and qualified, welding processing is carried out.

[0027] By adopting the above technical scheme, a larger adjustable range can be used to adapt to arc beams of more curvatures and different sizes, and the curvature inspection and the fitting and fixing of the arc beam can be carried out, which is convenient, fast and reliable; in the process of fitting inspection of the arc beam and the qualified flexible support plate, the inserted arc beam and the flexible support plate can be photographed by a camera and image recognition can be performed, and by identifying the edge of the arc beam and the edge of the flexible support plate, and then by calculating the minimum distance between the edge of the arc beam and the edge of the flexible support plate, it can be automatically and intelligently calculated to obtain whether the curvature of the arc beam and the distance between the standard flexible support plate are within the allowable error, thereby achieving the purpose of inspecting whether the curvature of the arc beam is within the qualified range.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. It can clamp and fix arc beams of different curvatures, expand the scope of application, improve versatility, and be more environmentally friendly without the need to re-order for each construction project.

[0030] 2. It is more intuitive to observe whether there are any problems with the curved beam, further improving efficiency.

[0031] 3. Automatically and intelligently calculate whether the curvature of the arc beam and the distance between the standard flexible support plate are within the allowable error, so as to check whether the curvature of the arc beam is within the qualified range. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a curved beam formwork structure in an embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of a structure that highlights a curved base plate and hides some supporting columns.

[0034] Figure 3 is along Figure 2 Schematic diagram of the cross section along line AA.

[0035] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0036] Figure 5 It is a structural diagram showing the highlight adjustment block.

[0037] Figure 6 is along Figure 2 Schematic diagram of the cross section along the CC line.

[0038] Figure 7 yes Figure 2 Schematic diagram of the enlarged structure at D in the middle.

[0039] Figure 8 It is a structural schematic diagram highlighting the limit block.

[0040] Fig. 9 It is a flow chart of a curved beam construction method in an embodiment of the present application.

[0041] Description of the reference numerals: 1. curved substrate; 11. first sink groove; 12. second sink groove; 13. third sink groove; 14. fourth sink groove; 15. insert block; 151. through groove; 16. slot; 2. radial adjustment seat; 21. adjustment control member; 211. first screw rod; 212. turntable; 213. support column; 22. lateral adjustment seat; 221. second screw rod; 222. lateral control member; 23. limit groove; 24. angle adjustment groove; 241. adjustment block; 242. flexible layer; 25. screw hole; 251. Lifting bolt; 3. end seat; 31. end control piece; 311. third screw rod; 32. end column; 321. width adjustment seat; 322. width adjustment piece; 323. fourth screw rod; 33. flexible support plate; 331. mounting cavity; 34. limiting strip; 35. worm; 351. worm wheel; 352. control gear; 353. control groove; 354. extension rod; 355. clamping groove; 36. stabilizing bolt; 361. abutment groove; 362. abutment block; 363. limiting block; 364. limiting slide groove. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-9 This application is described in further detail.

[0043] The present application embodiment discloses a curved beam formwork structure. Figure 1 and Figure 2The arc beam formwork structure includes an arc base plate 1. In this embodiment, the number of the arc base plates 1 is four, and the four arc base plates 1 are connected end to end to form a circular ring. For the convenience of description, the arc direction of the arc base plate 1 is taken as the extension direction, the direction of gravity is downward, and the direction opposite to the downward is upward. An insert block 15 is fixedly connected to one end of the arc base plate 1, and a slot 16 for inserting the insert block 15 is provided on the other end of the arc base plate 1. A through groove 151 is provided on the insert block 15, and the through groove 151 is also provided on the upper side wall of the arc base plate 1 to communicate with the slot 16. A latch is inserted into the through groove 151 to achieve the connection between adjacent arc base plates 1.

[0044] Reference Figure 2 , a plurality of first grooves 11 are provided on the upper end surface of the arc-shaped substrate 1, and a radial adjustment seat 2 sliding radially along the arc-shaped extension direction of the arc-shaped substrate 1 is slid in each first groove 11, the extension direction of the first groove 11 is parallel to the sliding direction of the radial adjustment seat 2, and the upper end surface of the radial adjustment seat 2 is flush with the opening surface of the first groove 11. An adjustment control member 21 for controlling the sliding of the radial adjustment seat 2 is installed on the arc-shaped substrate 1, and the adjustment control member 21 includes a first screw rod 211 rotatably connected to the arc-shaped substrate 1, the first screw rod 211 is threadedly connected to the radial adjustment seat 2, and the length direction of the first screw rod 211 is parallel to the sliding direction of the radial adjustment seat 2, and a turntable 212 for rotation by a staff member is also installed on the end of the first screw rod 211 outside the arc-shaped substrate 1, and the first screw rod 211 has an anti-reverse effect. In other embodiments, the adjustment control member 21 can also be controlled by other methods, such as a cylinder.

[0045] Reference Figure 2A second sinking groove 12 is provided on the upper end surface of the radial adjustment seat 2, and a transverse adjustment seat 22 slides in the second sinking groove 12. The sliding direction of the transverse adjustment seat 22 is perpendicular to the sliding direction of the radial adjustment seat 2. The extension direction of the second sinking groove 12 is parallel to the transverse adjustment seat 22, and the upper end surface of the transverse adjustment seat 22 is flush with the opening surface of the second sinking groove 12. A transverse control member 222 for controlling the sliding of the transverse adjustment seat 22 is installed on the radial adjustment seat 2, and a support column 213 is rotatably provided on the upper end surface of the transverse adjustment seat 22. In this embodiment, the transverse control member 222 includes a second screw rod 221 rotatably connected to the radial adjustment seat 2, the second screw rod 221 is threadedly connected to the transverse adjustment seat 22, and the length direction of the second screw rod 221 is parallel to the sliding direction of the transverse adjustment seat 22. The end of the second screw rod 221 outside the radial adjustment seat 2 is also installed with a turntable 212. The second screw rod 221 has an anti-reverse effect. In other embodiments, the transverse control member 222 can also be controlled by other methods, such as a cylinder. If two support columns 213 are rotatably connected to a transverse adjustment seat 22, the two support columns 213 can also be controlled to slide in a direction away from or close to each other by a screw rod with reverse threads.

[0046] Reference Figure 2 , two third grooves 13 are provided on the arc-shaped substrate 1, and the two third grooves 13 are respectively located at the two ends of the extension direction of the arc-shaped substrate 1. Two end seats 3 sliding along the radial direction of the arc-shaped substrate 1 are slid in the third grooves 13, and the upper end surface of the end seat 3 is flush with the opening surface of the third grooves 13, and the third grooves 13 extend along the sliding direction of the end seat 3. An end control member 31 for controlling the sliding of the end seat 3 is also installed on the arc-shaped substrate 1. In this embodiment, the end control member 31 includes a third screw rod 311 rotatably connected to the arc-shaped substrate 1, the third screw rod 311 is threadedly connected to the end seat 3, and the length direction of the third screw rod 311 is parallel to the sliding direction of the end seat 3. The third screw rod 311 has an anti-reverse effect. In other embodiments, the end control member 31 can also be controlled by other methods, such as a cylinder.

[0047] Reference Figure 2, a fourth groove 14 is provided on the upper end surface of the end seat 3, two width adjustment seats 321 are slidably arranged in the fourth groove 14, the upper end surface of the width adjustment seat 321 is flush with the opening surface of the fourth groove 14, and the sliding direction of the width adjustment seat 321 is parallel to the sliding direction of the end seat 3, and the fourth groove 14 extends along the sliding direction of the width adjustment seat 321. A width adjustment member 322 for controlling the distance between the two width adjustment seats 321 is installed on the end seat 3. In this embodiment, the width adjustment member 322 includes a fourth screw rod 323 rotatably connected to the end seat 3, and the fourth screw rod 323 includes a bidirectional thread. The fourth screw rod 323 is threadedly connected to the two width adjustment seats 321, and the two width adjustment seats 321 are respectively threadedly connected to the bidirectional threads with opposite thread directions, so that the two width adjustment seats 321 slide in the direction of moving away from or approaching each other. The fourth screw rod 323 has an anti-reverse effect. In other embodiments, the width adjustment member 322 can also be controlled by other methods, such as a cylinder.

[0048] Reference Figure 1 and Figure 2 , an end column 32 is rotatably arranged on the upper end surface of the width adjustment seat 321, and a flexible support plate 33 is connected between the end columns 32 at both ends of the arc substrate 1, and the flexible support plate 33 extends from the end column 32 at one end of the arc substrate 1 to the end column 32 at the other end of the arc substrate 1, and an installation cavity 331 for placing the arc beam is formed between the two flexible support plates 33, and a plurality of support columns 213 are supported on the flexible support plate 33 together to adjust the curvature of the flexible support plate 33, and the flexible support plate 33 is supported on the arc beam, and the flexible support plate 33 is made of metal, and has a certain degree of flexibility due to its thin thickness. And the plurality of support columns 213 are evenly divided into two groups, and the two groups of support columns 213 are respectively distributed on both sides of the extension direction of the installation cavity 331, so as to be supported on the two flexible support plates 33 from both sides.

[0049] Reference Figure 3 and Figure 4The limiting strips 34 are fixedly connected to the side walls of the two flexible support plates 33 facing away from each other. The limiting strips 34 extend along the extension direction of the flexible support plates 33. The cross-sectional diameter of the limiting strips 34 away from the flexible support plates 33 is larger than the cross-sectional diameter of the limiting strips 34 close to the flexible support plates 33, that is, the cross-sectional width of the limiting strips 34 is wider the farther away from the flexible support plates 33. The supporting column 213 is provided with a limiting groove 23 for the limiting strips 34 to slide inside. The cross-sectional diameter of the limiting groove 23 increases as it goes deeper into the limiting groove 23. The limiting groove 23 is adapted to the limiting strips 34, and the opening surface diameter of the limiting groove 23 is smaller than the end diameter of the limiting strips 34 that goes deep into the limiting groove 23, so that the opening surface of the limiting groove 23 clamps the limiting strips 34 in the direction of sliding out of the limiting groove 23, and the limiting strips 34 can only slide along their own length direction and are difficult to be pulled out of the limiting groove 23. The extending direction of the limiting groove 23 is opened along an arc, that is, both ends of the extending direction of the limiting groove 23 have a tendency to bend and extend toward the other side of the curved surface of the support column 213, so that the flexible support plate 33 can change the curvature.

[0050] Reference Figure 3 and Figure 5 An angle adjustment groove 24 is provided on the inner wall of the upper end of the limiting groove 23. The extension direction of the angle adjustment groove 24 is arc-shaped, so that the extension direction of the angle adjustment groove 24 is compatible with the arc-shaped opening direction of the limiting groove 23. The angle adjustment groove 24 extends upward, and a screw hole 25 with a threaded inner wall is provided on the upper end surface of the support column 213. The screw hole 25 extends from top to bottom, and the screw hole 25 intersects and communicates with the angle adjustment groove 24. An adjustment block 241 is provided in the angle adjustment groove 24 for lifting and sliding. The length direction of the adjustment block 241 also extends in an arc shape. The outer wall of the adjustment block 241 slides on the inner wall of the angle adjustment groove 24. A flexible layer 242 is fixedly connected to the lower end surface of the adjustment block 241. The flexible layer 242 is made of a flexible material, such as rubber. The flexible layer 242 is used to contact the limiting strip 34 and squeeze the limiting strip 34 to move deeper into the limiting groove 23. A lifting bolt 251 is threadedly connected to the screw hole 25, and the lower end of the lifting bolt 251 is rotatably connected to the upper end surface of the adjustment block 241. The upper end surface of the lifting bolt 251 is outside the screw hole 25 and is for the staff to rotate, and has, for example, a hexagonal nut for rotation.

[0051] Reference Figure 2 and Figure 6 and Figure 7A worm 35 and two worm wheels 351 are rotatably connected to the end column 32. The two worm wheels 351 are respectively meshed on both sides of the length direction of the worm 35. An extension rod 354 is fixedly connected to the rotating shaft of the worm wheel 351. The extension rod 354 is coaxially arranged with the worm wheel 351. The extension rod 354 extends downward and is inserted into the end column 32. A control gear 352 is fixedly connected to the extension rod 354. The control gear 352 is coaxially arranged with the extension rod 354. A clamping groove 355 penetrates the end column 32, and two control gears 352 are respectively located on both sides of the clamping groove 355 penetrating the end column 32. The flexible support plate 33 passes through the clamping groove 355. A plurality of control grooves 353 for meshing with the control gears 352 are provided on both sides of the flexible support plate 33. The plurality of control grooves 353 are distributed along the length direction of the flexible support plate 33. The control gears 352 on the inner walls on both sides of the clamping groove 355 are clamped on both sides of the flexible support plate 33, and the worm wheel 351 and the worm 35 have an anti-reverse function.

[0052] Reference Figure 6 and Figure 8 The upper end surface of the end column 32 is threadedly connected with a stabilizing bolt 36, which extends downward and is inserted into the interior of the end column 32 and is threadedly connected. The bottom of the end column 32 is provided with a resistance groove 361, which extends from bottom to top, and the lower end of the stabilizing bolt 36 extends from the upper end of the resistance groove 361 into the resistance groove 361. A resistance block 362 is provided in the resistance groove 361 to slide in and out of the resistance groove 361, and a limiting block 363 is fixedly connected to the side wall of the resistance block 362. A limiting slide groove 364 is provided on the inner wall of the resistance groove 361 for the limiting block 363 to slide in to limit the rotation of the resistance block 362. The limiting slide groove 364 extends along the sliding direction of the resistance block 362, and the limiting block 363 slides on the inner wall of the limiting slide groove 364. The lower end of the stabilizing bolt 36 abuts against the upper end surface of the abutting block 362 to push the abutting block 362 to slide out of the abutting groove 361 and abut against the end seat 3 to limit the rotation of the end column 32 .

[0053] The implementation principle of the arc beam formwork structure of the embodiment of the present application is as follows: when the arc beam needs to be installed, the required number of arc substrates 1 are selected and spliced, the third screw rod 311 and the fourth screw rod 323 are rotated to adjust the position of the end column 32, thereby adjusting the spacing between the flexible support plates 33 to achieve the purpose of adjusting the cross-sectional diameter of the installation cavity 331, the worm 35 is rotated to adjust the length of the flexible support plate 33 between the end columns 32, the first screw rod 211 and the second screw rod 221 are rotated to adjust the position of the lateral adjustment seat 22 and the radial adjustment seat 2 to achieve the purpose of adjusting the position of the support column 213, thereby adjusting the curvature of the flexible support plate 33, and finally, the curvature of the flexible support plate 33 supported by multiple support columns 213 is checked by tools such as calipers, and the arc beam is placed after the curvature is qualified. If the arc beam fits the qualified flexible support plate 33, the arc beam is qualified, and the arc beam is welded after it is placed qualified.

[0054] The present application embodiment discloses a method for constructing a curved beam. Fig. 9 , the arc beam construction method includes the following steps:

[0055] S1, select the required number of curved substrates 1 and splice them;

[0056] S2, adjust the end seat 3, rotate the worm 35 to adjust the length of the flexible support plate 33 between the end columns 32;

[0057] S3, adjusting the lateral adjustment seat 22 and the radial adjustment seat 2 to adjust the position of the support column 213;

[0058] S4, checking the curvature of the flexible support plate 33 supported by the plurality of support columns 213;

[0059] S5. After passing the test, place the arc beam in place. If the arc beam fits the qualified flexible support plate 33, the arc beam is qualified. After passing the test, the arc beam is placed and welded.

[0060] In detail: in the inspection of step S5, the inserted arc beam and the flexible support plate 33 can be photographed and image recognized by the camera. By identifying the edge of the arc beam and the edge of the flexible support plate 33, and then calculating the minimum distance between the edge of the arc beam and the edge of the flexible support plate 33, it is possible to automatically and intelligently calculate whether the curvature of the arc beam and the distance between the flexible support plate 33 as a standard are within the allowable error, thereby achieving the purpose of inspecting whether the curvature of the arc beam is within the qualified range. For example, if the cross-sectional width of the arc beam is 200 mm, the thickness of the flexible support plate 33 is 10 mm, and the allowable error distance is 2 mm, after the image is recognized and the spacing exists, the inner wall of the flexible support plate 33 is used as the reference plane, and a measuring line is made perpendicular to the reference plane. The shortest distance from the measuring line to the contact with the arc beam is calculated as the spacing distance value. If the spacing distance value is less than 2 mm, it means that the spacing is an allowable error. If the spacing distance value is greater than 2 mm, an alarm signal is output to the staff.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A curved beam formwork structure, characterized in that: The invention comprises an arc-shaped substrate (1), wherein a plurality of the arc-shaped substrates (1) are spliced ​​together to form a circular ring, a plurality of radial adjustment seats (2) are slidably arranged on the arc-shaped substrate (1) and slide along the radial direction of the arc-shaped substrate (1), an adjustment control member (21) is arranged on the arc-shaped substrate (1) for controlling the sliding of the radial adjustment seat (2), a support column (213) is rotatably arranged on the radial adjustment seat (2), and a plurality of the support columns (213) are used to contact the arc beam together; A transverse adjustment seat (22) is slidably disposed on the radial adjustment seat (2); the sliding direction of the transverse adjustment seat (22) is perpendicular to the sliding direction of the radial adjustment seat (2); a transverse control member (222) for controlling the sliding of the transverse adjustment seat (22) is disposed on the radial adjustment seat (2); and the support column (213) is rotatably disposed on the transverse adjustment seat (22); A plurality of end seats (3) slidingly arranged on the arc-shaped substrate (1) and sliding in the radial direction of the arc-shaped substrate (1), an end control member (31) for controlling the sliding of the end seat (3) is also arranged on the arc-shaped substrate (1), an end column (32) rotatably arranged on the end seat (3), a flexible support plate (33) is arranged between the end columns (32) at both ends of the arc-shaped substrate (1), a mounting cavity (331) for placing an arc beam is formed between the flexible support plates (33), a plurality of the support columns (213) are jointly supported on the flexible support plate (33) to adjust the curvature of the flexible support plate (33), and the flexible support plate (33) is supported on the arc beam; A limit strip (34) is provided on the flexible support plate (33), and a limit groove (23) is provided on the support column (213) for the limit strip (34) to slide inside. The diameter of the opening surface of the limit groove (23) is smaller than the diameter of the end of the limit strip (34) that penetrates into the limit groove (23), so that the limit strip (34) is difficult to be pulled out of the limit groove (23). The extension direction of the limit groove (23) is opened along an arc, so that the flexible support plate (33) can change the arc.

2. The curved beam formwork structure according to claim 1, characterized in that: An angle adjustment groove (24) is provided on the inner wall of the limiting groove (23), an adjustment block (241) is provided in the angle adjustment groove (24) for lifting, a flexible layer (242) is provided on the adjustment block (241), and the flexible layer (242) is used to contact the limiting strip (34) and squeeze the limiting strip (34) to move deeper into the limiting groove (23).

3. The curved beam formwork structure according to claim 1, characterized in that: A worm (35) and a plurality of worm wheels (351) meshing with the worm (35) are rotatably arranged on the end column (32); a control gear (352) is arranged on the worm wheel (351); a plurality of control grooves (353) for meshing with the control gears (352) are provided on the flexible support plate (33); and the plurality of control gears (352) are clamped on both sides of the flexible support plate (33).

4. The curved beam formwork structure according to claim 1, characterized in that: A stabilizing bolt (36) is threadedly connected to the end column (32); a bottom of the end column (32) is provided with a resistance groove (361); a resistance block (362) is slidably arranged in the resistance groove (361) and slides in and out of the resistance groove (361); a limiting block (363) is arranged on the resistance block (362); an inner wall of the resistance groove (361) is provided with a limiting sliding groove (364) for the limiting block (363) to slide in so as to limit the rotation of the resistance block (362); the stabilizing bolt (36) is in contact with the resistance block (362) to push the resistance block (362) to slide out of the resistance groove (361), so that the resistance block (362) is pressed against the end seat (3) to limit the rotation of the end column (32).

5. A method for constructing a curved beam, using the curved beam formwork structure according to claim 3, characterized in that: include: Selecting the required number of curved substrates (1) and splicing them; Adjust the end seat (3), and rotate the worm (35) to adjust the length of the flexible support plate (33) between the end columns (32); Adjusting the transverse adjustment seat (22) and the radial adjustment seat (2) to adjust the position of the support column (213); Checking the curvature of the flexible support plate (33) supported by the plurality of support columns (213); After passing the test, the arc beam is placed. If the arc beam fits the qualified flexible support plate (33), the arc beam is qualified. After passing the test, the arc beam is placed and welded.

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