Arch culvert model frame moving construction device

Abstract

The utility model discloses an arch culvert model frame removes construction equipment, including support mechanism and arch mechanism, support mechanism includes a plurality of mobile support legs for symmetrical layout in the length direction interval of arch culvert both sides and set and is used for connecting adjacent two mobile support legs of the length direction of arch culvert cross bar, and mobile support leg can be adjusted in lift, arch mechanism, including the arch for striding and supporting the template of arch culvert both sides and installing in the arch lower end for adjusting the span and shape of arch tension string subassembly, and the both ends of arch are installed on the cross bar of arch culvert both sides and are used for along the length direction sliding adjustment position of cross bar. The device can adjust the span and shape of arch, ensure that the template can be closely combined with the arch culvert of different span, different shape, improve the quality of concrete pouring, and do not need to set up the model frame under the tension string subassembly, reduce the space occupied, leave the sufficient space for the inside of arch culvert, be favorable to the flexible layout and traffic transportation of construction site.

Description

Technical Field

[0001] This utility model relates to the field of arch culvert construction technology, and in particular, to an arch culvert formwork moving construction device. Background Technology

[0002] Arch culverts, used as passageways for water, pedestrians, or small vehicles crossing the roadbed, are characterized by their high diameter and high clearance, as well as strong compressive strength, making them suitable for road sections with high embankment.

[0003] Currently, the cast-in-place construction of large arch culverts typically employs the full-span scaffolding assembly formwork method. This method involves erecting full-span scaffolding at the construction site before construction begins, then fixing the arch culvert casting formwork to the top of the scaffolding before pouring the concrete. After pouring, the scaffolding must be dismantled, the casting formwork removed, and then the formwork re-erected for the next segment, repeating this process. This method requires frequent manual dismantling, erection, and relocation, significantly increasing the construction period and resulting in low efficiency. Furthermore, because the formwork for different segments is erected independently, it is difficult to ensure consistent quality and construction precision for each segment, leading to inconsistent quality in the cast-in-place concrete structure and making it prone to cracks, deformation, and other quality problems. Additionally, the repeated dismantling and erection of the formwork can cause deformation or damage to formwork components, affecting the overall construction quality.

[0004] Chinese patent CN204753412U discloses a mobile formwork for arch culvert construction, comprising a support frame and an arched template. The support frame has wheels with brakes at its bottom and a height adjustment mechanism at its top. The arched template is mounted on the height adjustment mechanism with its convex surface facing upwards. After installing the arched template on the support frame at one construction site, the height adjustment mechanism is adjusted to raise the arched template to the designed height before the arch culvert is poured. After construction is completed, the height adjustment mechanism is adjusted to lower the arched template, pushing the support frame to transport the arched template to the next construction site for repeated construction. This arched template can be installed once for arch culvert construction at multiple sites, eliminating the need for repeated disassembly and reassembly of supports and templates at each site, saving construction time and improving efficiency. However, to accommodate large-span arch culverts, this formwork requires numerous support frames, resulting in significant space occupation within the arch culvert. This hinders flexible site layout and transportation. Furthermore, the arched template cannot be adjusted to fit the actual shape of the arch culvert, affecting the construction quality. Utility Model Content

[0005] This invention provides a mobile construction device for arch culvert formwork to solve the technical problem in the prior art where formwork used for large-span arch culvert construction occupies a large amount of space inside the arch culvert.

[0006] According to one aspect of the present invention, a mobile construction device for an arch culvert formwork is provided, comprising a support mechanism and an arch frame mechanism. The support mechanism includes a plurality of movable legs symmetrically arranged on both sides of the arch culvert and spaced apart along the length of the arch culvert, and a crossbar for connecting two adjacent movable legs along the length of the arch culvert. The movable legs are adjustable in height.

[0007] The arch frame mechanism includes an arch frame spanning across both sides of the arch culvert and supporting the template, and a tension chord assembly installed at the lower end of the arch frame for adjusting the shape of the arch frame. The two ends of the arch frame are respectively installed on the crossbars on both sides of the arch culvert and are used to slide and adjust the position along the length of the crossbars.

[0008] Furthermore, the movable outrigger includes a column, a height adjustment device for controlling the column's raising and lowering, movable wheels for controlling the column's movement, and fixed feet for supporting the column.

[0009] The casters are located at the bottom of the column, the height adjustment piece is installed between the column and the casters and moves in conjunction with the column or casters in the height direction, and the fixed foot support is movably sleeved on the outside of the column.

[0010] Furthermore, the fixed support includes a pivot sleeved on the outside of the column and a diagonal brace installed on the side wall of the pivot. The pivot is threadedly connected to the column and is used to move up and down relative to the column through the threaded engagement, thereby driving the diagonal brace to contact the ground for support.

[0011] Furthermore, the crossbar is provided with a track groove along its length for accommodating the end of the arch frame and allowing the arch frame to slide, and strip-shaped sliding holes are provided on both sides of the track groove and communicate with the track groove.

[0012] The ends of the arch frame are provided with fastening holes corresponding to the strip-shaped sliding holes. The arch frame is fastened to the crossbar by passing bolts through the strip-shaped sliding holes and the fastening holes in sequence.

[0013] Furthermore, the tension cable assembly includes a lower chord cable symmetrically hinged to both ends of the arch frame and a vertical support rod disposed between the arch frame and the lower chord cable;

[0014] The lower chord cable is used to apply tension between the two ends of the arch frame and the tension is adjustable. There are multiple vertical struts evenly distributed along the length of the arch frame.

[0015] Furthermore, the tensioning cable assembly also includes an anchor gauge for monitoring the stress state, which is mounted on the lower chord cable and / or the arch frame.

[0016] Furthermore, the tensioning cable assembly also includes a reinforcing bar for enhancing the supporting tension on the arch frame. The reinforcing bar is inclined between the lower chord cable and the arch frame and connected to the vertical support bar.

[0017] Furthermore, the movable outrigger also includes a movable foot support for assisting the movement of the column. The movable foot support includes a rotating ring threaded to the outside of the column, a wheel plate mounted on the rotating ring, and a roller mounted on the bottom of the wheel plate.

[0018] Furthermore, the top of the column is provided with a U-shaped block for supporting the crossbar.

[0019] Furthermore, the support mechanism also includes horizontal struts for connecting to the two crossbars along the width direction of the arch culvert. The horizontal struts are located between two adjacent arch frames to balance the horizontal component force generated by the tension chord assembly on the arch frame.

[0020] This utility model has the following beneficial effects:

[0021] This utility model discloses a mobile construction device for arch culvert formwork. The support mechanism features symmetrically arranged movable legs on both sides of the arch culvert to match its width, and spaced along its length to form multi-span construction zones. This allows for segment-by-segment cast-in-place construction of multiple sections of the arch culvert, increasing construction speed. The movable legs are connected by crossbars to form a stable support system with high overall stability. The device can move freely along the length of the arch culvert by moving the legs. After one segment is completed, the device can be moved directly to the next segment for repeated construction, eliminating the need for repeated disassembly and assembly at each segment. This saves time and labor, significantly improving construction efficiency, shortening the construction period, and ensuring consistent quality and precision across each segment. This prevents inconsistencies in the quality of cast-in-place concrete structures across segments, avoiding quality problems such as cracks and deformation. Furthermore, the movable legs can be adjusted for height to facilitate demolding and adapt to different construction heights, improving adaptability to the construction site. By applying force to the arch frame using tensioning cable assemblies, the arch frame can be adapted to the span of the culvert, making it suitable for the construction of large-span culverts. Furthermore, the tensioning cable assemblies can optimize the axial force on the arch frame and balance the horizontal thrust by adjusting the geometry and prestress distribution. This prevents horizontal force components from forming between the tensioning cable assemblies and the arch frame, creating a self-balancing system. Therefore, fewer formwork structures are needed, significantly reducing the space occupied under the arch frame and leaving ample space inside the culvert, facilitating flexible site layout and transportation. The tensioning cable assemblies can also adjust the curvature of the arch frame to match its shape, ensuring a tight fit between the formwork and culverts of different spans and shapes, improving the accuracy and surface quality of concrete pouring. Additionally, by allowing the arch frame to be slidably mounted on the crossbars, the arch frame mechanism and support mechanism can be moved independently, facilitating independent adjustments and movements at different construction stages and flexibly adapting to various construction conditions. The device's mobile outriggers and arch frame mechanism are modularly designed, facilitating transportation, storage, and reuse, effectively reducing resource waste and lowering construction costs.

[0022] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 This is a front view of the arch culvert formwork moving construction device according to a preferred embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the arch culvert formwork moving construction device according to a preferred embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the movable foot support of the arch culvert formwork movable construction device according to a preferred embodiment of the present invention.

[0027] Legend:

[0028] 10. Support mechanism; 11. Movable outrigger; 111. Column; 112. Height adjustment component; 113. Movable wheel; 114. Fixed foot support; 1141. Rotating shaft; 1142. Diagonal brace; 115. Movable foot support; 1151. Rotating ring; 1152. Wheel plate; 1153. Roller; 12. Crossbar; 121. Track groove; 13. Horizontal strut; 20. Arch frame mechanism; 21. Arch frame; 22. Tensioner cable assembly; 221. Lower chord cable; 222. Vertical strut; 223. Anchor cable gauge; 30. Template. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0030] like Figure 1 and Figure 2As shown, the arch culvert formwork mobile construction device of this embodiment includes a support mechanism 10 and an arch frame mechanism 20. The support mechanism 10 includes several movable legs 11 and a crossbar 12 for connecting two adjacent movable legs 11. This allows the movable legs 11 to be symmetrically arranged on both sides of the arch culvert to match its width, and spaced along the length of the arch culvert to form a multi-span construction area. The crossbar 12 connects the movable legs 11 to form a stable support system, enabling segmented cast-in-place construction of the arch culvert, thus improving construction speed. The movable legs 11 are freely movable and adjustable in height. The movement of the movable legs 11 allows the device to move freely along the length of the arch culvert. After one segment is completed, the device can be moved directly to the next segment for repeated construction, eliminating the need for repeated disassembly and assembly at each segment. This saves time and effort, significantly improves construction efficiency, shortens the construction period, and ensures consistent quality and precision in each segment, preventing inconsistent quality of the cast-in-place concrete structure and avoiding quality problems such as cracks and deformation. Meanwhile, the lifting and lowering adjustment of the movable outriggers 11 facilitates demolding and allows the device to adapt to construction needs at different heights, thereby improving its adaptability to the construction site.

[0031] The arch frame mechanism 20 includes an arch frame 21 for supporting the formwork 30 and a tension chord assembly 22 for adjusting the span and shape of the arch frame 21. Specifically, by placing the arch frame 21 across both sides of the arch culvert and arranging multiple arch frames 21 at intervals along the length of the arch culvert, a support structure adapted to the shape of the top wall of the arch culvert is formed. Stable support for the formwork 30 is achieved by placing the formwork 30 on this support structure. The tension chord assembly 22 is installed at the lower end of the arch frame 21. By applying force to the arch frame 21 through the tension chord assembly 22, the arch frame 21 can be adjusted. The frame 21 is adapted to the span of the arch culvert, making it suitable for the construction of large-span arch culverts. Furthermore, the tension chord assembly 22 can optimize the axial force of the arch frame 21 and balance the horizontal thrust on the arch frame 21 by adjusting its geometry and prestress distribution. This ensures that no horizontal component force is generated between the tension chord assembly 22 and the arch frame 21, forming a self-balancing system. Therefore, fewer formwork structures are needed, significantly reducing the space occupied under the arch frame 21 and leaving ample space inside the arch culvert, facilitating flexible site layout and transportation. Moreover, the tension chord assembly 22 can adjust the curvature of the arch frame 21, ensuring it matches the shape of the arch culvert. This guarantees a tight fit between the formwork and arch culverts of different spans and shapes, improving the accuracy and surface quality of concrete pouring. The two ends of the arch frame 21 are respectively installed on the crossbars 12 on both sides of the arch culvert, and are used to slide and adjust the position along the length of the crossbars 12. This allows the arch frame mechanism 20 and the support mechanism 10 to move independently, so as to make independent adjustments and movements at different construction stages and flexibly adapt to different construction conditions. Preferably, the arch frame 21 is detachably installed on the crossbars 12 for easy reuse.

[0032] In this embodiment, the use of the device includes the following steps:

[0033] S1: Before the cast-in-place construction of the arch culvert, the device needs to be assembled first. Specifically, the support mechanism 10 is assembled first, that is, two movable legs 11 are symmetrically arranged on both sides of the arch culvert to form a leg unit. The leg unit is arranged in three sets at intervals along the length of the arch culvert. The first construction segment and the second construction segment are formed sequentially between two adjacent leg units along the construction direction of the arch culvert. Then, the crossbar 12 is connected to the top of the movable leg 11 along the length of the arch culvert to form a stable support system with the movable leg 11, thus completing the assembly of the support mechanism 10. Next, the arch culvert mechanism is installed: first, the tensioning cable assembly 22 is installed inside the arch frame 21; then, the arch frame 21 is erected on the corresponding movable support legs 11 on both sides of the arch culvert; then, both ends of the arch frame 21 are respectively installed on two crossbars 12 for fixation; the tensioning cable assembly 22 is controlled to tension the arch frame 21 to adjust the span and shape of the arch frame 21 to match the arch culvert; finally, the formwork 30 is erected on the adjusted arch frame 21, thus completing the assembly of the device. Preferably, three or more support leg units can be spaced apart along the length of the arch culvert to form multiple construction segments.

[0034] S2: Control the movable outrigger 11 to rise so that the formwork 30 is lifted to below the top wall of the arch culvert. Then, carry out the cast-in-place construction of the first and second construction segments of the arch culvert in sequence. After the construction of the two construction segments is completed, control the movable outrigger 11 to descend so that the entire device is lowered, so that the arch frame 21 is separated from the formwork 30 for demolding.

[0035] S3: After demolding is completed, move the device as a whole to move it one construction segment distance in the direction of the arch culvert construction. Remove the formwork 30 on the top wall of the arch culvert after the first construction segment is completed. Install the removed formwork 30 on the arch frame 21 corresponding to the arch culvert segment to be constructed. Raise the device as a whole to carry out the construction of that construction segment.

[0036] S4: Repeat step S3 to carry out the construction of each construction segment step by step.

[0037] Preferably, in another embodiment, step S3 can be as follows: after demolding, the two arch frames 21 on the first construction segment are loosened from the crossbar 12, and the two arch frames 21 are pushed to slide on the crossbar 12 by a jack or other power equipment, so that they move towards the arch culvert construction direction to the second construction segment. The template 30 on the top wall of the arch culvert after the first construction segment is completed is removed. Then the crossbar 12 and the movable support leg 11 on the first construction segment are removed. The movable support leg 11 is controlled to move three construction segments away towards the arch culvert construction direction to reach the next construction segment. Then the crossbar 12 is installed on the movable support leg 11. The jack or other power equipment is controlled again to push the arch frame 21 to the corresponding position. Then the removed template 30 is installed on the arch frame 21 corresponding to the arch culvert to be constructed segment. The device is raised as a whole to carry out the construction of the construction segment.

[0038] like Figure 1 As shown, the movable support leg 11 includes a column 111, a height adjustment component 112 for controlling the raising and lowering of the column 111, a movable wheel 113 for controlling the movement of the column 111, and a fixed foot support 114 for supporting the column 111. The height adjustment component 112 is installed between the column 111 and the movable wheel 113, and is movablely engaged with the column 111 or the movable wheel 113 in the height direction. Preferably, in this embodiment, the height adjustment component 112 is an adjustable lead screw, which includes a base, a lead screw rotatably installed in the base, and a handle installed on the base for controlling the rotation of the lead screw. The end of the lead screw away from the base extends into the column 111 and is threadedly engaged with the column 111. The movable wheel 113 is fixed to the bottom of the base. Thus, by rotating the control lead screw, the column 111 is raised and lowered relative to the base. Preferably, the movable wheel 113 is a caster wheel to improve the flexibility of movement; the movable wheel 113 is provided with a locking component to achieve locking at any position. The fixed foot support 114 is movably sleeved on the outside of the column 111. When the column 111 needs positioning support, it can be rotated to move downward until it contacts the ground for support. When the column 111 needs to be moved, the fixed foot support 114 can be rotated to rise away from the ground to avoid interfering with the movement of the column 111.

[0039] like Figure 1As shown, the fixed support 114 includes a rotating shaft 1141 sleeved on the outside of the column 111 and diagonal bracing rods 1142 installed on the side wall of the rotating shaft 1141. The rotating shaft 1141 is threadedly connected to the column 111, so the diagonal bracing rods 1142 can be raised and lowered relative to the column 111 by rotating the rotating shaft 1141, thereby driving the diagonal bracing rods 1142 to contact the ground for support. The diagonal bracing rods 1142 include an inclined rod that is inclined and fixed to the rotating shaft 1141 and a support plate fixed to the bottom of the inclined rod. The support plate can increase the contact area with the ground and improve the stability of the support. Optionally, multiple diagonal bracing rods 1142 can be arranged along the circumference of the rotating shaft 1141 to improve the stability of the support for the column 111.

[0040] like Figure 1 As shown, the crossbar 12 has a track groove 121 along its length and corresponding strip-shaped sliding holes on both sides of the track groove 121 that communicate with it. The strip-shaped sliding holes are also arranged along the length of the crossbar 12. The end of the arch frame 21 is engaged in the track groove 121, and the end of the arch frame 21 has a fastening hole corresponding to the strip-shaped sliding hole. When it is necessary to fix the arch frame 21 to the crossbar 12, the end of the arch frame 21 is placed in the track groove 121 of the crossbar 12, and then the bolt is passed through the strip-shaped sliding hole and the fastening hole and extends from the side end of the crossbar 12. The nut is then tightened onto the bolt to secure the arch frame 21 to the crossbar 12. Preferably, there are two fastening holes and two bolts to prevent the arch frame 21 from tilting when rotating around a single bolt. When it is necessary to allow the arch frame 21 to slide on the crossbar 12, the nut is loosened.

[0041] like Figure 1As shown, the tension cable assembly 22 includes a lower chord cable 221 hinged to both ends of the arch frame 21 and vertical support rods 222 disposed between the arch frame 21 and the lower chord cable 221. The lower chord cable 221 is used to apply an adjustable tension between the two ends of the arch frame 21. Multiple vertical support rods 222 are evenly distributed along the length of the arch frame 21 to ensure uniform transmission of tension force from the lower chord cable to the arch frame 21. Hinge supports are symmetrically provided at both ends of the arch frame 21, and the lower chord cable 221 is hinged to the hinge supports. Before use, the target radius of curvature and arch height of the arch frame 21 can be determined according to the shape and curvature of the culvert. The initial length and prestress value of the lower chord cable 221 can be calculated. When it is necessary to make adaptive adjustments to the arch frame 21 according to the span and shape of the culvert, hydraulic jacks, torque wrenches or tensioners are used to apply tension to the lower chord cable 221. The tension is evenly distributed on the arch frame 21 by the vertical support rod 222 connected between the lower chord cable 221 and the arch frame 21, so that the arch frame 21 can be precisely adjusted to adapt to the span and shape of the culvert. This ensures that the formwork 30 fits tightly with culverts of different spans and shapes, and improves the accuracy and surface quality of concrete pouring. By adjusting the geometry and prestress distribution, the lower chord cable 221 can optimize the axial force of the arch frame 21 and adapt to the length of the vertical strut 222. The formwork of the lower chord cable 221 affects the support reaction force at the hinge support location. Reasonable control of the applied force of the lower chord cable 221 allows the lower chord cable 221, vertical strut 222, and arch frame 21 to form a stable self-balancing system, avoiding the horizontal component force of the lower chord cable 221 on the hinge support. Therefore, there is no need to erect a formwork below the tension chord assembly 22, greatly reducing the space occupied and leaving sufficient space inside the arch culvert, facilitating flexible layout and transportation on the construction site. In actual engineering, load conditions, construction feasibility, and safety redundancy must be comprehensively considered to ensure the robustness of the design.

[0042] like Figure 1 As shown, the tension cable assembly 22 also includes an anchor gauge 223 for monitoring the stress state. The anchor gauge 223 is installed on the lower chord cable 221 and / or the arch frame 21 to measure the tension of the lower chord cable 221 in real time. Since the horizontal component of the force of the lower chord cable 221 is equal to the horizontal component of the force of the arch frame 21 at the same cross section, effective monitoring of the internal force of the arch frame 21 can be achieved, avoiding over-tensioning, ensuring safety, and improving adjustment accuracy. Preferably, the tension cable assembly 22 also includes a reinforcing rod, which is inclinedly disposed between the lower chord cable 221 and the arch frame 21 and connected to the vertical support rod 222 to enhance the supporting tension of the arch frame 21.

[0043] like Figure 3As shown, the movable support leg 11 also includes a movable foot support 115. The movable foot support 115 includes a rotating ring 1151 threadedly connected to the outside of the column 111, a wheel plate 1152 mounted on the rotating ring 1151, and rollers 1153 mounted on the bottom of the wheel plate 1152. The wheel plate 1152 is inclined. Thus, by controlling the rotation of the rotating ring 1151 around the column 111, the rotating ring 1151 can be lowered, causing the rollers 1153 at the bottom of the wheel plate 1152 to contact the ground, thereby assisting the column 111 in moving. Optionally, multiple wheel plates 1152 can be provided circumferentially on the rotating ring 1151. Optionally, the movable foot support 115 can also be constructed by mounting rollers 1153 on the bottom of the fixed foot support 114.

[0044] Preferably, a U-shaped block is installed on the top of the column 111, with the opening of the U-shaped block facing to support the crossbar 12, so that the crossbar 12 can be snapped into the U-shaped block, and the crossbar 12 can be fixed to the U-shaped block by bolts to achieve a detachable connection between the crossbar 12 and the column 111.

[0045] like Figure 2 As shown, preferably, the support mechanism 10 further includes a horizontal strut 13, which is used to connect to two crossbars 12 along the width direction of the arch culvert and is located between two adjacent arch frames 21 to balance the horizontal component force generated by the tension chord assembly 22 on the arch frame 21.

[0046] Preferably, the support mechanism 10 further includes a reinforcing frame, which is installed below the crossbar 12 and connected between two adjacent movable legs 11 along the length of the arch culvert, to enhance the structural stability between the movable legs 11 and further ensure the firmness and reliability of the support mechanism 10.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An arch culvert formwork moving construction device, characterized by, include: The support mechanism (10) includes a plurality of movable legs (11) symmetrically arranged on both sides of the arch culvert and spaced apart along the length of the arch culvert, and a crossbar (12) for connecting two adjacent movable legs (11) along the length of the arch culvert. The movable legs (11) can be adjusted in height. The arch frame mechanism (20) includes an arch frame (21) spanning across both sides of the arch culvert and supporting the template (30), and a tension string assembly (22) installed at the lower end of the arch frame (21) for adjusting the span and shape of the arch frame (21). The two ends of the arch frame (21) are respectively installed on the crossbars (12) on both sides of the arch culvert and are used to slide and adjust the position along the length direction of the crossbars (12).

2. The arch culvert formwork moving construction device according to claim 1, characterized in that, The movable support leg (11) includes a column (111), a height adjustment component (112) for controlling the lifting and lowering of the column (111), a movable wheel (113) for controlling the movement of the column (111), and a fixed foot support (114) for supporting the column (111). The movable wheel (113) is located at the bottom of the column (111), the height adjustment component (112) is installed between the column (111) and the movable wheel (113), and moves in cooperation with the column (111) or the movable wheel (113) in the height direction, and the fixed foot support (114) is movably sleeved on the outside of the column (111).

3. The arch culvert formwork moving construction device according to claim 2, characterized in that, The fixed support (114) includes a pivot (1141) sleeved on the outside of the column (111) and a diagonal brace (1142) installed on the side wall of the pivot (1141). The pivot (1141) is threadedly connected to the column (111) and is used to move up and down relative to the column (111) through threaded engagement, thereby driving the diagonal brace (1142) to contact the ground for support.

4. The arch culvert formwork moving construction device according to claim 1, characterized in that, The crossbar (12) has a track groove (121) along its length for accommodating the end of the arch frame (21) and allowing the arch frame (21) to slide, and strip-shaped sliding holes corresponding to both sides of the track groove (121) and communicating with the track groove (121). The end of the arch frame (21) is provided with a fastening hole corresponding to the strip-shaped sliding hole. The arch frame (21) is fastened to the crossbar (12) by passing the bolt through the strip-shaped sliding hole and the fastening hole in sequence.

5. The arch culvert formwork moving construction device according to claim 1, characterized in that, The tension cable assembly (22) includes a lower chord cable (221) symmetrically hinged to both ends of the arch frame (21) and a vertical support rod (222) connecting the arch frame (21) and the lower chord cable (221); The lower chord cable (221) is used to apply tension between the two ends of the arch frame (21) and the tension is adjustable. The vertical support rods (222) are evenly distributed at intervals along the length of the arch frame (21).

6. The arch culvert formwork moving construction device according to claim 5, characterized in that, The tension cable assembly (22) also includes an anchor gauge (223) for monitoring the stress state, the anchor gauge (223) being mounted on the lower chord cable (221) and / or the arch frame (21).

7. The arch culvert formwork moving construction device according to claim 6, characterized in that, The tension cable assembly (22) also includes a reinforcing rod for enhancing the supporting tension on the arch frame (21), the reinforcing rod being obliquely disposed between the lower chord cable (221) and the arch frame (21) and connected to the vertical support rod (222).

8. The arch culvert formwork moving construction device according to claim 2, characterized in that, The movable support leg (11) also includes a movable foot support (115) for assisting the movement of the column (111). The movable foot support (115) includes a rotating ring (1151) threaded to the outside of the column (111), a wheel plate (1152) mounted on the rotating ring (1151), and a roller (1153) mounted on the bottom of the wheel plate (1152).

9. The arch culvert formwork moving construction device according to claim 2, characterized in that, The top of the column (111) is provided with a U-shaped block for supporting the crossbar (12).

10. The arch culvert formwork moving construction device according to claim 1, characterized in that, The support mechanism (10) further includes a horizontal strut (13) for connecting the two crossbars (12) along the width direction of the arch culvert. The horizontal strut (13) is located between two adjacent arch frames (21) to balance the horizontal component force generated by the tension chord assembly (22) on the arch frame (21).

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