Omnibearing adjustable curved surface special-shaped tower creeping formwork and construction method

Abstract

The invention relates to the technical field of bridge engineering construction, in particular to an all-directional adjustable curved surface special-shaped tower creeping formwork and a construction method. Comprising a space linear climbing system, an all-dimensional curved surface special-shaped structure formwork adjusting device, a linkage adjusting climbing frame construction platform and an inner formwork telescopic type steel-wood combined formwork, and the space linear climbing system comprises a triangular bearing platform and a climbing track; the omni-directional curved surface special-shaped structure formwork adjusting device is composed of a movable track, an inclined strut adjusting rod, a supporting back ridge and a set-shaped steel formwork. According to the creeping formwork, dynamic adaptability and modular adjustment can be achieved, it is ensured that the aerial work platform is always horizontal, and the falling risk is greatly reduced; through a mechanical adjusting device, construction of a complex three-dimensional curved surface can be achieved with high precision; the tedious process of repeated dismounting and changing and new formwork manufacturing in a traditional method is avoided, and the construction efficiency is improved; due to the tailorability of the steel-wood combined formwork and the adjustability of the system, the material cost is saved.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering construction technology, specifically to a fully adjustable curved irregular tower climbing formwork and construction method. Background Technology

[0002] Bridge engineering involves the design, construction, maintenance, and management of bridges. High pier and tower construction has become a common project in large-scale bridge construction. Compared to traditional scaffolding construction, the widely used hydraulic climbing formwork is safer, faster, and requires less manpower in high pier and tower construction. Furthermore, hydraulic climbing formwork can be reused, saving costs. Due to these advantages, hydraulic climbing formwork has been widely used in high pier and tower bridge projects. With the increasing pursuit of aesthetics, landscape bridges are becoming more and more common, among which irregular cable-stayed bridges are the most diverse. Through the unique structural forms and stress characteristics of these bridges, they showcase different visual effects and structural features. Traditional hydraulic climbing formwork is gradually becoming insufficient for the construction of irregular towers and piers. The diverse formwork has become a challenge in tower and pier construction, and has also brought many difficulties to the application of hydraulic climbing formwork systems.

[0003] The pylon structures of irregular cable-stayed bridges are mostly curved or inclined surfaces. Although traditional scaffolding construction methods can ensure safety, they suffer from long erection periods and high costs. While hydraulic climbing formwork systems can improve the construction efficiency of high piers and towers, their linear design cannot adapt to the geometric changes of curved bridge towers, leading to tilting of the climbing formwork, instability of the construction platform, and increased risks associated with working at heights.

[0004] Existing hydraulic climbing formwork systems mainly suffer from the following defects: 1. Traditional hydraulic climbing formwork is mostly "straight up and down" template and track, which is a rigid structure and cannot adaptively adjust to the curvature changes of curved bridge towers.

[0005] 2. The climbing track lacks linear adjustment capability, requiring frequent disassembly and reassembly when the bridge tower tilt angle changes, reducing construction efficiency.

[0006] 3. Existing adjustment devices (such as fixed diagonal braces) can only level the platform to a limited extent and cannot simultaneously solve the problem of spatial adaptation between the template and the track.

[0007] Therefore, providing support and adjustment for the hydraulic climbing formwork system to enable it to adapt to various types of bridge construction is an urgent problem to be solved. Summary of the Invention

[0008] The purpose of this invention is to provide a fully adjustable curved irregular tower climbing formwork and construction method to solve the problem mentioned in the background art that the hydraulic climbing formwork system needs to adapt to different structural characteristics and is difficult to adjust during the construction of irregular bridge designs.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a fully adjustable curved irregular tower climbing formwork, comprising a spatial linear climbing system, a fully adjustable curved irregular structure formwork adjustment device, a linkage adjustment climbing frame construction platform, and an inner formwork telescopic steel-wood composite formwork. The spatial linear climbing system includes a triangular load-bearing platform and a climbing track. The fully adjustable curved irregular structure formwork adjustment device consists of a moving track, a diagonal bracing adjustment rod, a supporting back rib, and a fixed steel formwork.

[0010] Preferably, the spatial linear climbing system further includes track supports, climbing heads, anchor plates, anchor shoes, an upper climbing box, a lower climbing box, a load-bearing triangular frame, and adjustable hydraulic braces. The climbing heads, anchor plates, and anchor shoes are fixedly installed on the cast-in-place segment. The upper and lower climbing boxes are installed on the climbing track, and the adjustable hydraulic braces are used to support the load-bearing triangular frame and adjust its angle.

[0011] Preferably, the all-around curved irregular structure template adjustment device includes a moving track, a diagonal brace adjustment rod, a back brace support rod, and a fixed steel template. The moving track is set on a load-bearing triangular frame, and a guide support seat and a slide rail set on the guide support seat are also provided on the moving track. The back brace support rod is connected to the fixed steel template, and the upper end of the back brace support rod is hinged to the upper end of the diagonal brace adjustment rod. A crossbar is provided between the lower end of the diagonal brace adjustment rod and the lower end of the back brace support rod. The lower end of the diagonal brace adjustment rod is hinged to one end of the crossbar, and the lower end of the back brace support rod is hinged to the other end of the crossbar. Support wheels are also connected to the lower end of the diagonal brace adjustment rod and the bottom of the back brace support rod, respectively. The support wheels are set on the slide rail, and the support wheels support the back brace support rod and the diagonal brace adjustment rod to move back and forth.

[0012] Preferably, the linkage-adjustable climbing scaffolding construction platform is mounted on a load-bearing triangular frame and includes at least four vertical fixed rods. The four vertical fixed rods are connected to form a linkage-adjustable climbing scaffolding construction platform, which is divided into three layers. Each layer of the construction platform includes the following structure: a diagonal bracing adjustment rod is provided, the two ends of which are hinged to two diagonally opposite corners of the climbing scaffolding. The vertical fixed rods near the concrete surface are rigidly connected to the climbing track of the hydraulic climbing formwork system. The main beam of the hydraulic climbing formwork system is hinged to the vertical fixed rods with pins to ensure that the climbing scaffolding construction platform can be twisted. The bottom ends of the four vertical fixed rods are hinged to the load-bearing triangular frame with pins.

[0013] Preferably, the inclined brace adjusting rod includes a first adjusting rod, a second adjusting rod, a hollow torsion rod, and a torsion handle disposed on the hollow torsion rod; both the first adjusting rod and the second adjusting rod are provided with external threads, and the hollow torsion rod is provided with internal threads and is matched with the external threads of the first adjusting rod and the second adjusting rod.

[0014] Preferably, a tie rod connecting sleeve is fixed to the side of the back support rod, and the back support rod is connected to the shaped steel template through the tie rod connecting sleeve to ensure that the shaped steel template can rotate with the back support rod.

[0015] This invention also provides a method for constructing an adjustable curved irregular-shaped tower using climbing formwork, comprising the following steps: (1) Before construction, use BIM software to calculate and analyze the spatial geometric changes of the main tower, simulate the climbing trajectory of the climbing formwork, optimize and determine the climbing path and the position of the embedded parts at each stage; (2) Install the climbing track, use its built-in movable hinge device to fine-tune the track so that it initially fits the design curvature of the current construction section, install and debug the triangular load-bearing platform, and adjust the tilt angle of the load-bearing triangular frame through hydraulic diagonal bracing. (3) After completing the concrete pouring and curing of a segment, prepare for climbing. First, fix the track anchor and start the hydraulic climbing device. For irregular sections, adopt the climbing mode of small mileage and multiple frequency. During the climbing process, slowly and dynamically adjust the hydraulic bracing of the load-bearing platform and the track hinge device so that the hydraulic climbing formwork system can adapt to the new line shape and inclination. (4) After the hydraulic climbing formwork has climbed to the position, the all-round curved irregular structure template is finely adjusted by rotating the knob handle to precisely control the curved shape of the template so that it completely matches the design line. (5) Adjust the climbing frame construction platform in conjunction with the extension or retraction of the diagonal bracing adjustment rods connected to the opposite corner of the climbing frame to adjust the construction platform to a horizontal state and lock it. (6) Formwork shrinkage cutting and splicing: For the shrinkage section of the formwork section, the steel and wood composite formwork should be cut before the formwork is erected. During installation, if the steel walers are not aligned due to tilting, the connecting claws should be removed and reinstalled to ensure tight joints.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The climbing formwork of this invention is dynamically adaptable and modularly adjustable, ensuring that the high-altitude work platform is always horizontal, greatly reducing the risk of falls; through the mechanical adjustment device, it can achieve high-precision construction of complex three-dimensional curved surfaces; it avoids the tedious process of repeatedly dismantling and modifying and making new formwork in traditional methods, thus improving construction efficiency; the cuttable nature of the steel-wood combined formwork and the adjustability of the system save material costs.

[0017] 2. The vertical fixed rod, diagonal bracing adjustment rod and main crossbeam of the climbing formwork construction platform of this invention form two stable triangular structures. Based on the principle of triangle stability, the overall stability of the climbing formwork construction platform is ensured. The device is easy to operate and can adjust the climbing formwork to a horizontal position in a timely manner when the hydraulic climbing formwork system is climbing on irregular bridge towers and pier segments, thereby improving the construction environment on the climbing formwork.

[0018] 3. The all-round curved irregular structure formwork adjustment device supports the formwork connecting frame through adjustable length diagonal bracing rods, which can adjust the vertical tilt angle of the formwork and allow the formwork connecting frame to be displaced to different degrees. It also allows the formwork to be tilted left and right. It can be adjusted over a wider range during the construction of irregular bridge towers, greatly improving construction efficiency and safety, and has good technical advantages.

[0019] 4. The linkage adjustment climbing scaffolding construction platform uses pins to fix the vertical fixed rods under each section of the climbing scaffolding platform, making the support angle adjustable for leveling the climbing scaffolding platform. At the same time, the vertical support structure is adjustable through the cooperation of threaded diagonal braces and torsion bars, which improves the construction efficiency of irregular cable-stayed bridges. The device is designed with a torsion handle on the torsion bar, which can be used for manual rotation of the torsion bar. The rotation positioning method is simple and effectively improves the efficiency of adjustment work. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a three-dimensional structure of an all-around adjustable curved irregular tower climbing formwork according to the present invention; Figure 2 This is a schematic diagram of the spatial linear climbing system for an all-around adjustable curved irregular tower climbing formwork according to the present invention; Figure 3 This is a schematic diagram of the structure of an adjustable curved irregular tower climbing formwork template adjustment device according to the present invention. Figure 4 This is a schematic diagram of the inclined bracing adjustment rod structure in a fully adjustable curved irregular tower climbing formwork according to the present invention; Figure 5 This is a schematic diagram of the template shrinkage and cutting structure in a fully adjustable curved irregular tower climbing formwork according to the present invention; Figure 6 This is a schematic diagram of the misalignment structure of the template walers in a fully adjustable curved irregular tower climbing formwork according to the present invention. Figure 7 This is a schematic diagram of the adjusted waler pair in a fully adjustable curved irregular tower climbing formwork according to the present invention. Figure 8 This is a diagram showing the position of the movable hinge device for the track in a fully adjustable curved irregular tower climbing formwork according to the present invention.

[0021] In the diagram: 1. Moving track; 2. Support back rib; 100. Diagonal brace adjustment rod; 3. Fixed steel formwork; 4. Support seat; 5. Slide rail; 6. Horizontal bar; 7. Support wheel; 8. Vertical fixing rod; 13. Tie rod connecting sleeve; 100. Diagonal brace adjustment rod; 111. Adjustable movable hinge device; 21. Track support foot; 22. Climbing head; 23. Anchor plate; 24. Anchor shoe; 25. Climbing upper box body; 26. Climbing lower box body; 27. Load-bearing triangular frame; 201. Back rib support rod; 271. Horizontal bar; 272. Vertical bar. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 As shown, the present invention provides a technical solution: This invention provides an all-around adjustable curved irregular tower climbing formwork, including a spatial linear climbing system, an all-around curved irregular structure template adjustment device, a linkage adjustment climbing frame construction platform, and an inner formwork telescopic steel-wood combination template. The spatial linear climbing system includes a triangular load-bearing platform and a climbing track. The all-around curved irregular structure template adjustment device consists of a moving track 1, a diagonal bracing adjustment rod 100, a supporting back rib 2, and a fixed steel template 3.

[0024] See Figure 2 As shown, the spatial linear climbing system also includes track support feet 21, climbing head 22, anchor plate 23, anchor shoe 24, upper climbing box 25, lower climbing box 26, load-bearing triangular frame 27, and adjustable hydraulic brace 27. The climbing head, anchor plate, and anchor shoe are fixedly installed on the cast-in-place section to fix the climbing track. The upper and lower climbing boxes are installed on the climbing track. The adjustable hydraulic brace supports the load-bearing triangular frame and adjusts its angle. The adjustable hydraulic brace can extend or retract as needed to adjust the triangular load-bearing platform on the load-bearing triangular frame to a horizontal position. The two ends of the adjustable hydraulic brace are hinged to the horizontal and vertical surfaces of the load-bearing triangular frame, respectively. The adjustable hydraulic brace is driven by a hydraulic cylinder to extend and retract at both ends, thereby achieving the purpose of adjusting the angle of the load-bearing triangular frame.

[0025] In addition to the adjustable hydraulic bracing supporting the load-bearing triangular frame, there are two triangular structures consisting of a vertical rod 272, a horizontal rod 271, and an adjustable bracing rod 100 that support the load-bearing triangular frame. The vertical rod and the adjustable bracing rod are hinged to the load-bearing triangular frame and the horizontal rod, and together with the adjustable hydraulic bracing, they support the load-bearing triangular frame and adjust its angle.

[0026] The climbing track needs to be designed to adapt to the changes in the spatial cross-section of the main tower. By calculating the spatial geometric changes of the spindle-shaped tower column with height, the climbing trajectory of the climbing formwork is calculated by connecting the preset climbing positions. The positions of the pre-embedded climbing cones in each section treatment under each trajectory and the planar position of the climbing formwork system are analyzed. The analysis determines the climbing formwork system conflicts and the most convenient path for installing climbing cones and climbing other paths as the preferred path to achieve the smooth climbing of the irregular tower shape.

[0027] See Figure 8 As shown, in order to adapt to the spatial alignment of the curved section of the main tower, the climbing track can be pre-arched (bent) at a small angle. Therefore, an adjustable movable hinge device 111 is added to the anchorage section of the climbing track. This adjustable movable hinge device can be implemented by means of a pin. By fine-tuning the movable hinge device, the climbing track can adapt to the spatial alignment of the main tower. At the same time, the hydraulic diagonal bracing rod of the load-bearing platform is used to fine-tune the tilt angle of the track, so as to achieve the purpose of the climbing track adapting to the curved spatial alignment.

[0028] See Figure 3 As shown, the all-around curved irregular structure template adjustment device includes a moving track 1, a diagonal brace adjustment rod 100, a back brace support rod 271, and a fixed steel template 3. The moving track 1 is set on a load-bearing triangular frame 27. The moving track is also equipped with a guide support seat 4 and a slide rail 5 set on the guide support seat 4. The back brace support rod is connected to the fixed steel template. The back brace support rod is hinged to the upper end of the diagonal brace adjustment rod. A crossbar 6 is set between the lower end of the diagonal brace adjustment rod and the lower end of the back brace support rod. The lower end of the diagonal brace adjustment rod is hinged to one end of the crossbar 6. The lower end of the back brace support rod is hinged to the other end of the crossbar 6. The lower end of the diagonal brace adjustment rod and the bottom of the back brace support rod are respectively connected to support wheels 7. The support wheels 7 are set on the slide rail 5. The support wheels 7 support the back brace support rod and the diagonal brace adjustment rod to move back and forth.

[0029] The all-round curved irregular structure template adjustment device forms a triangular support system. Its all-round adjustment is mainly achieved by the cooperation of the adjusting diagonal brace and the moving track. When it is necessary to adjust the shape of the curved section template, the diagonal brace is extended to achieve the purpose of tilting along the curved section. If it is in the outward tilting section, that is, when the template is tilted towards the section to be poured, the diagonal brace is extended. The moving track can realize the forward and backward movement of the template for installation and disassembly, realizing the multi-directional adjustment of the template.

[0030] The linkage-adjustable climbing formwork construction platform is set on a load-bearing triangular frame and includes at least four vertical fixed rods 8. The four adjacent vertical fixed rods are connected to each other to form a linkage-adjustable climbing formwork construction platform, which is divided into three layers. Each layer of the construction platform includes the following structure: a diagonal bracing adjustment rod is provided, and the two ends of the diagonal bracing adjustment rod are hinged to two diagonally opposite corners of the climbing formwork. The vertical fixed rods near the concrete surface are rigidly connected to the climbing track of the hydraulic climbing formwork system. The main beam of the hydraulic climbing formwork system is hinged to the vertical fixed rods with pins to ensure that the climbing formwork construction platform can be twisted away from or towards the section to be poured. The bottom ends of the four vertical fixed rods are hinged to the load-bearing triangular frame with pins.

[0031] The linkage-adjustable climbing formwork construction platform utilizes the stability principle of triangles. A diagonal brace adjustment rod, capable of omnidirectional adjustment, is added within the rectangular climbing formwork space, dividing the rectangular space into two stable triangular structures to ensure overall stability. As the hydraulic climbing formwork rises with the inclined segments of the bridge tower, the climbing formwork tilts accordingly. When the bridge tower segment tilts inward, the climbing formwork tilts upward, causing the platform to tilt. At this point, the diagonal brace adjustment rod needs to be retracted. Due to the hinged action of the pins, the climbing formwork platform is adjusted to a horizontal position, transforming the rectangular space into a parallelogram (rhombus). If the climbing formwork platform is in an outward-tilting segment, it tilts downward, requiring the diagonal brace adjustment rod to be extended.

[0032] See Figure 4 As shown, the diagonal brace adjusting rods used in this invention all have one structure. The diagonal brace adjusting rod 100 includes a first adjusting rod 101, a second adjusting rod 102, a hollow torsion rod 103, and a torsion handle 104 disposed on the hollow torsion rod 103. The first adjusting rod 101 and the second adjusting rod 102 are both provided with external threads, and the hollow torsion rod 103 is provided with internal threads and is matched with the external threads of the first adjusting rod 101 and the second adjusting rod 102. When it is necessary to adjust the diagonal brace adjusting rod, the torsion handle 104 is turned to realize the extension or retraction of the diagonal brace adjusting rod.

[0033] See Figure 3 The back support rod 201 is fixed with a tie rod connecting sleeve 13 on its side. The back support rod 201 is connected to the shaped steel template 3 by the tie rod connecting sleeve 13, so as to ensure that the shaped steel template 3 can rotate with the back support rod 201.

[0034] See Figure 5 The internal formwork is a telescopic steel-wood composite formwork, and the cross-section of the pylon gradually decreases as the pylon height increases (e.g., Figure 8 As shown), during the ascent of the climbing formwork, the cross-sectional dimensions of the outer straight transition section change inwards (e.g., ...). Figure 5(In the direction of the arrow) the steel-wood composite formwork is cut and shrunk to match the gradually decreasing cross-sectional changes, reducing the need for new formwork and extensive adjustments. As the hydraulic climbing formwork ascends, the steel-wood (VISA) composite formwork on both sides will tilt, causing misalignment of the formwork walers and ineffective joint fixing. Therefore, the wooden beams and steel walers are designed to be fixed with connecting claws. If the steel walers are not on the same horizontal plane, the connecting claws are removed and the steel walers are reinstalled. Figure 6 The diagram shown illustrates the misalignment of the template walers. Figure 7 The diagram shows the template waler after adjustment.

[0035] This invention also provides a construction method for an all-around adjustable curved irregular-shaped tower climbing formwork. Includes the following steps: (1) Before construction, use BIM software to calculate and analyze the spatial geometric changes of the main tower, simulate the climbing trajectory of the climbing formwork, optimize and determine the climbing path and the position of the embedded parts at each stage; (2) Install the climbing track, use its built-in movable hinge device to fine-tune the track so that it initially fits the design curvature of the current construction section, install and debug the triangular load-bearing platform, and adjust the tilt angle of the load-bearing triangular frame through hydraulic diagonal bracing. (3) After completing the concrete pouring and curing of a segment, prepare for climbing. First, fix the track anchor and start the hydraulic climbing device. For irregular sections, adopt the climbing mode of small mileage and multiple frequency. During the climbing process, slowly and dynamically adjust the hydraulic bracing of the load-bearing platform and the track hinge device so that the hydraulic climbing formwork system can adapt to the new line shape and inclination. (4) After the hydraulic climbing formwork has climbed to the position, the all-round curved irregular structure template is finely adjusted by rotating the knob handle to precisely control the curved shape of the template so that it completely matches the design line. (5) Adjust the climbing frame construction platform in conjunction with the extension or retraction of the diagonal bracing adjustment rods connected to the opposite corner of the climbing frame to adjust the construction platform to a horizontal state and lock it. (6) Formwork shrinkage cutting and splicing: For the shrinkage section of the formwork section, the steel and wood composite formwork should be cut before the formwork is erected. During installation, if the steel walers are not aligned due to tilting, the connecting claws should be removed and reinstalled to ensure tight joints.

[0036] In step (3), after the first segment of concrete pouring and curing is completed, the track anchor is fixed and the hydraulic climbing device is started. The hydraulic climbing device includes an upper climbing box and a lower climbing box. The upper climbing box and the lower climbing box alternately clamp the rail and lift. Before climbing, the hydraulic brace angle needs to be adjusted according to the inclination angle of the irregular section so that the load-bearing triangle initially fits the inclination angle. Then, the climbing is carried out. The hydraulic cylinder is lifted and the lower climbing box clamps the upper climbing box on the track, driving the entire climbing formwork to climb upward. The upper climbing box passes through the clamp and the cylinder is lifted. The cylinder is retracted and the upper climbing box clamps the track. The cylinder continues to retract and the lower climbing box moves upward. After all the cylinders have retracted, the lower climbing box passes through the track clamp and the mileage climbing is completed. For the climbing of irregular sections, small mileage climbing is required, and the overall climbing formwork inclination angle is slowly adjusted.

[0037] In step (4), after the hydraulic climbing formwork system climbs to the construction site, the fixed steel formwork (3) is first fixed to the back support rod using the connecting sleeve (13). The distance between the fixed steel formwork (3) and the concrete (14) is moved back and forth by the slide rail driving the support adjustment device. Then, the vertical inclination of the outer formwork (3) is adjusted by the inclined brace adjustment rod. The horizontal inclination of the outer formwork (3) can be adjusted by the support adjustment device.

[0038] In step (5), when the hydraulic climbing formwork system climbs along the irregular curved surface, the vertical fixed rod will tilt along with the curved surface. When the climbing platform tilts inward, the diagonal bracing rod can be retracted to adjust the upper climbing platform to a horizontal position. When the climbing platform tilts outward, the diagonal bracing rod can be extended to adjust the upper climbing platform to a horizontal position. If the tilt angle of the climbing platform is too large and the diagonal bracing rod can no longer adjust the tilt angle, the pin holes connecting the main beam of the climbing platform and the diagonal bracing rod on the vertical fixed rod can be replaced. Then, the diagonal bracing rod can be extended or retracted as needed to level the climbing platform.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully adjustable curved irregular-shaped tower climbing form, characterized in that: It includes a spatial linear climbing system, an all-round curved irregular structure template adjustment device, a linkage adjustment climbing frame construction platform, and an inner formwork telescopic steel-wood combination template. The spatial linear climbing system includes a triangular load-bearing platform and a climbing track. The all-round curved irregular structure template adjustment device consists of a moving track, a diagonal bracing adjustment rod, a support back rib, and a fixed steel template.

2. The omnidirectional adjustable curved irregular tower climbing formwork according to claim 1, characterized in that: The spatial linear climbing system also includes track supports, climbing heads, anchor plates, anchor shoes, an upper climbing box, a lower climbing box, a load-bearing triangular frame, and adjustable hydraulic braces. The climbing heads, anchor plates, and anchor shoes are fixedly installed on the cast-in-place sections. The upper and lower climbing boxes are installed on the climbing track, and the adjustable hydraulic braces are used to support the load-bearing triangular frame and adjust its angle.

3. The omnidirectional adjustable curved irregular tower climbing formwork according to claim 2, characterized in that: The all-round curved irregular structure template adjustment device includes a moving track, a diagonal brace adjustment rod, a back brace support rod, and a fixed steel template. The moving track is set on a load-bearing triangular frame. The moving track is also set with a guide support seat (4) and a slide rail (5) set on the guide support seat (4). The back brace support rod is connected to the fixed steel template. The back brace support rod is hinged to the upper end of the diagonal brace adjustment rod. A crossbar (6) is set between the lower end of the diagonal brace adjustment rod and the lower end of the back brace support rod. The lower end of the diagonal brace adjustment rod is hinged to one end of the crossbar (6). The lower end of the back brace support rod is hinged to the other end of the crossbar (6). The lower end of the diagonal brace adjustment rod and the bottom of the back brace support rod are also connected with support wheels (7). The support wheels (7) are set on the slide rail (5). The support wheels (7) support the back brace support rod and the diagonal brace adjustment rod to move back and forth.

4. The omnidirectional adjustable curved irregular tower climbing formwork according to claim 3, characterized in that: The linkage-adjustable climbing scaffolding construction platform is set on a load-bearing triangular frame and includes at least four vertical fixed rods. The four vertical fixed rods are connected to form a linkage-adjustable climbing scaffolding construction platform, which is divided into three layers. Each layer of the construction platform includes the following structure: a diagonal bracing adjustment rod is provided, and the two ends of the diagonal bracing adjustment rod are hinged to two diagonally opposite corners of the climbing scaffolding. The vertical fixed rods near the concrete surface are rigidly connected to the climbing track of the hydraulic climbing formwork system. The main beam of the hydraulic climbing formwork system is hinged to the vertical fixed rods with pins to ensure that the climbing scaffolding construction platform can be twisted. The bottom ends of the four vertical fixed rods are hinged to the load-bearing triangular frame with pins.

5. The omnidirectional adjustable curved irregular tower climbing formwork according to claim 4, characterized in that: The diagonal brace adjustment rod includes a first adjustment rod (101), a second adjustment rod (102), a hollow torsion rod (103), and a torsion handle (104) disposed on the hollow torsion rod (103); the first adjustment rod (101) and the second adjustment rod (102) are both provided with external threads, and the hollow torsion rod (103) is provided with internal threads and is matched with the external threads of the first adjustment rod (101) and the second adjustment rod (102).

6. The omnidirectional adjustable curved irregular tower climbing formwork according to claim 5, characterized in that: The back support rod (201) is fixed with a tie rod connecting sleeve (13) on its side. The back support rod (201) is connected to the shaped steel template (3) by the tie rod connecting sleeve (13) to ensure that the shaped steel template (3) can rotate with the back support rod (201).

7. A construction method for a fully adjustable curved irregular-shaped tower climbing formwork according to any one of claims 1-6, characterized in that: Includes the following steps: (1) Before construction, use BIM software to calculate and analyze the spatial geometric changes of the main tower, simulate the climbing trajectory of the climbing formwork, optimize and determine the climbing path and the position of the embedded parts at each stage; (2) Install the climbing track, use its built-in movable hinge device to fine-tune the track so that it initially fits the design curvature of the current construction section, install and debug the triangular load-bearing platform, and adjust the tilt angle of the load-bearing triangular frame through hydraulic diagonal bracing. (3) After completing the concrete pouring and curing of a segment, prepare for climbing. First, fix the track anchor and start the hydraulic climbing device. For irregular sections, adopt the climbing mode of small mileage and multiple frequency. During the climbing process, slowly and dynamically adjust the hydraulic bracing of the load-bearing platform and the track hinge device so that the hydraulic climbing formwork system can adapt to the new line shape and inclination. (4) After the hydraulic climbing formwork has climbed to the position, the all-round curved irregular structure template is finely adjusted by rotating the knob handle to precisely control the curved shape of the template so that it completely matches the design line. (5) Adjust the climbing frame construction platform in conjunction with the extension or retraction of the diagonal bracing adjustment rods connected to the opposite corner of the climbing frame to adjust the construction platform to a horizontal state and lock it. (6) Formwork shrinkage cutting and splicing: For the shrinkage section of the formwork section, the steel and wood composite formwork should be cut before the formwork is erected. During installation, if the steel walers are not aligned due to tilting, the connecting claws should be removed and reinstalled to ensure tight joints.

8. The construction method of a fully adjustable curved irregular tower climbing formwork according to claim 7, characterized in that: In step (3), after the first segment of concrete pouring and curing is completed, the track anchor is fixed and the hydraulic climbing device is started. The hydraulic climbing device includes an upper climbing box and a lower climbing box. The upper climbing box and the lower climbing box alternately clamp the rail and lift. Before climbing, the hydraulic brace angle needs to be adjusted according to the inclination angle of the irregular section so that the load-bearing triangle initially fits the inclination angle. Then, the climbing is carried out. The hydraulic cylinder is lifted and the lower climbing box clamps the upper climbing box on the track, driving the entire climbing formwork to climb upward. The upper climbing box passes through the clamp and the cylinder is lifted. The cylinder is retracted and the upper climbing box clamps the track. The cylinder continues to retract and the lower climbing box moves upward. After all the cylinders have retracted, the lower climbing box passes through the track clamp and the mileage climbing is completed. For the climbing of irregular sections, small mileage climbing is required, and the overall climbing formwork inclination angle is slowly adjusted.

9. The construction method of a fully adjustable curved irregular tower climbing formwork according to claim 7, characterized in that: In step (4), after the hydraulic climbing formwork system climbs to the construction site, the fixed steel formwork (3) is first fixed to the back support rod using the connecting sleeve (13). The distance between the fixed steel formwork (3) and the concrete (14) is moved back and forth by the slide rail driving the support adjustment device. Then, the vertical inclination of the outer formwork (3) is adjusted by the inclined brace adjustment rod. The horizontal inclination of the outer formwork (3) can be adjusted by the support adjustment device.

10. The construction method of a fully adjustable curved irregular tower climbing formwork according to claim 9, characterized in that: In step (5), when the hydraulic climbing formwork system climbs along the irregular curved surface, the vertical fixed rod will tilt along with the curved surface. When the climbing platform tilts inward, the diagonal bracing rod can be retracted to adjust the upper climbing platform to a horizontal position. When the climbing platform tilts outward, the diagonal bracing rod can be extended to adjust the upper climbing platform to a horizontal position. If the tilt angle of the climbing platform is too large and the diagonal bracing rod can no longer adjust the tilt angle, the pin holes connecting the main beam of the climbing platform and the diagonal bracing rod on the vertical fixed rod can be replaced. Then, the diagonal bracing rod can be extended or retracted as needed to level the climbing platform.

Images