Transverse prestress anchor sealing template for box girder

Abstract

A box girder transverse prestress anchor sealing formwork is fixed on a guardrail steel bar at the top of a bridge box girder wing plate and comprises a drag hook, a triangular supporting rod, a side formwork and a fixing rod. The fixing rod is horizontally arranged, the two ends of the fixing rod are fixed to poured pre-buried guardrail steel bars respectively, the side formwork is vertically arranged, the triangular supporting rod and the side formwork are fixedly arranged, and the drag hook penetrates into the side formwork and the triangular supporting rod to be hooked to the fixing rod, so that the side formwork is fastened to a side plate of a box girder wing plate; for a damaged anchor groove in the bottom of the box girder wing plate, the anchor sealing template is further provided with a bottom template, the bottom template is arranged at the bottom of the box girder wing plate and is perpendicular to the side templates, and the bottom template and the side templates are fixed into a whole through bolts, so that the bottom template is tightly attached to the bottom edge of the box girder wing plate. The anchor sealing formwork is simple in structure, convenient to mount and dismount, capable of improving formwork mounting efficiency and reducing formwork mounting and dismounting safety risks, and suitable for anchor sealing of an anchor groove where bottom concrete falls off due to dismounting of a transverse pre-stressed anchor box.

Description

Technical Field:

[0001] The utility model belongs to the technical field of continuous beam and continuous rigid frame bridges, especially to the technical field of safety technology for installation of transverse prestressed anchor groove sealing formwork of bridges, and specifically, it is a transverse prestressed sealing formwork for box girders. Background Art:

[0002] Nowadays, with the vigorous development of highways and railways, the proportion of high-pier and long-span continuous rigid frames and continuous beam bridges is also increasing. High-pier and long-span bridges need to set transverse prestressed tendons on the top slab, so an anchor groove needs to be set at the tensioning end for sealing the anchor after the steel strands are tensioned to prevent the steel strands from being corroded and losing their function. Traditional transverse prestressed anchor sealing usually uses "wood formwork + iron wire" or "steel formwork + steel bars" for fixation. The fixation effect of the formwork is poor, the formwork is easy to fall off during demolition, and the safety is low. Therefore, a formwork is needed that can improve the installation efficiency of the transverse prestressed anchor sealing formwork, reduce the safety risks of formwork installation and demolition, and can be reused to improve the material utilization rate. Content of the Utility Model:

[0003] The purpose of the utility model is to provide a transverse prestressed sealing formwork for box girders with simple structure, convenient installation and demolition, reusable, improved formwork installation efficiency and reduced safety risks of formwork installation and demolition, which is applicable to the anchor groove sealing where the bottom concrete falls off due to the removal of the transverse prestressed anchor box.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a transverse prestressed sealing formwork for box girders. The sealing formwork is fixed on the guardrail steel bars at the top of the wing slab of the bridge box girder, and it includes a hook, a triangular strut, a side formwork, and a fixing rod; the fixing rod is horizontally arranged, and both ends are respectively fixed on the cast-in-place embedded guardrail steel bars. The side formwork is vertically arranged, and the triangular strut is fixedly arranged with the side formwork. The triangular strut includes a flat rod and an inclined rod. The hook passes through the side formwork and the triangular strut and is hooked on the fixing rod, so that the side formwork is fastened on the side plate of the wing slab of the box girder; for the damaged anchor groove at the bottom of the wing slab of the box girder, the sealing formwork is also provided with a bottom formwork and bolts. The bottom formwork is arranged at the bottom of the wing slab of the box girder and is perpendicular to the side formwork. The bottom formwork and the side formwork are fixed into a whole through bolts, so that the bottom formwork is closely attached to the bottom edge of the wing slab of the box girder.

[0006] The fixing rod includes a second screw rod, a clamping plate and a third nut. The second screw rod is made by threading a steel bar with a diameter of 10 mm. The clamping plate is cut from a steel plate, and bolt holes are cut on it; both ends of the second screw rod are respectively placed into the clamping plate and screwed with the third nut. The second screw rod is fixed on the cast-in-place embedded guardrail steel bars through the third nut and the clamping plate; the hook passes through the side formwork and the triangular strut and is hooked with the second screw rod.

[0007] The described hook includes a hooked screw rod, a first gasket and a first nut; the hooked screw rod passes through the side formwork and the triangular strut and is hooked to the fixed rod. The hooked screw rod is made of round steel, with one end bent 180°, the bending diameter being 12 mm, and the other end processed with threads, the thread length being at the position 100 mm away from the hook; the straight section of the hook is screwed into the first nut and the first gasket. There are two groups of the first nut and the first gasket. One group is against the inner side of the side formwork to prevent the side formwork from slipping inwards, and the other group is against the outer side of the triangular strut to prevent the side formwork from falling off. By adjusting the two first nuts inside and outside the hook, the side formwork is closely attached to the concrete surface of the side plate of the box girder wing.

[0008] The flat bar and the inclined bar of the described triangular strut are both made of square steel, with wall thicknesses of 3 mm and 2.5 mm respectively; one end of the inclined bar is fixed at the end of the flat bar, and the other ends of the flat bar and the inclined bar are respectively fixed on the side formwork; welding is used between the inclined bar and the flat bar, and between the other ends of the flat bar and the inclined bar and the side formwork.

[0009] The described side formwork includes a side plate, a first stiffening rib, an upper spacer, an upper positioning plate, an upper positioning block and an embedded pipe; the side plate is cut from a steel plate. The first stiffening rib includes a transverse stiffening rib and a vertical stiffening rib; the vertical stiffening rib is a full-length stiffening rib and is welded to the side plate. The vertical stiffening rib is cut according to the height of the side plate, and is arranged at intervals of 50 mm along the width direction, and is densified at both ends of the side plate, and its width is the same as the width of the flat bar of the triangular strut; the transverse stiffening rib is welded to the vertical stiffening rib and the side plate, and the transverse stiffening rib is welded between two vertical stiffening ribs at intervals of 50 mm along the height direction of the side plate; the upper positioning plate is welded to the bottom of the side plate. The upper positioning plate is made of steel plate, with a total of three pieces, arranged alternately with the embedded pipe, and the upper positioning plate is provided with screw holes; the upper spacer and the upper positioning block are welded to the upper positioning plate, and screw holes are arranged inside the upper spacer and the upper positioning block, which are aligned with the screw holes of the upper positioning plate; the embedded pipe is made of high-strength round steel, with one end hollowed out and welded to the bottom of the side plate.

[0010] The described bottom formwork includes a bottom plate, a second stiffening rib, a lower positioning block, a lower positioning plate, a lower spacer and a plug-in part; the bottom plate is cut from a steel plate. The second stiffening rib includes a transverse stiffening rib and a longitudinal stiffening rib; the longitudinal stiffening rib is a full-length stiffening rib and is welded to the bottom plate. The longitudinal stiffening rib is cut according to the length of the bottom plate, and is arranged at intervals of 50 mm along the width direction; the transverse stiffening rib is welded to the longitudinal stiffening rib and the bottom plate, and the transverse stiffening rib is welded between two vertical stiffening ribs at intervals of 50 mm along the length direction of the bottom plate; the lower positioning plate is welded to the end of the bottom plate. The lower positioning plate is made of steel plate, with a total of three pieces, arranged alternately with the plug-in part and corresponding to the position of the upper positioning plate of the side formwork, and the lower positioning plate is provided with screw holes; the lower spacer and the lower positioning block are welded to the lower positioning plate, and screw holes are arranged inside the lower spacer and the lower positioning block, which are aligned with the screw holes of the lower positioning plate; the plug-in part is made of high-strength round steel, with one end inserted into the embedded pipe and welded to the end of the bottom plate.

[0011] The bolt described above includes a first screw rod, a second nut and a second gasket; the first screw rod is made by threading a steel bar; the first screw rod passes through the side formwork and the bottom formwork, and is screwed into the second gasket and the second nut at both ends.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The structure of the utility model is simple. The connections between the hook, the fixing rod, the side formwork and the bottom formwork all adopt bolt connections, which are convenient for installation and removal, and at the same time, the installation accuracy is greatly improved.

[0014] 2. The utility model adopts a detachable bottom formwork. Whether to install the bottom formwork is determined according to whether the concrete at the bottom of the anchor groove is damaged, and it can realize the sealing of the damaged anchor groove at the transverse bottom of the box girder top plate and the non-damaged anchor groove at the bottom, with strong applicability.

[0015] 3. The utility model adopts a light high-strength steel plate and is provided with stiffening ribs. The upper and lower parts of the side formwork are fixed by triangular struts, and positioning devices are arranged at the connecting ends of the side formwork and the bottom formwork, with strong stability.

[0016] 4. The utility model uses upper backing plates, lower backing plates, upper cushion blocks, lower cushion blocks, embedded pipes and plug-in parts for positioning the side formwork and the bottom formwork, which improves the overall stability at the connection of the formwork while increasing the formwork assembly speed.

[0017] 5. The utility model is convenient for installation and removal, can be reused repeatedly, and improves the material utilization rate.

[0018] In summary, the utility model has the characteristics of simple installation, low operation difficulty, fast construction efficiency and reducing the safety risks of formwork installation and removal. It can realize the sealing of the damaged anchor groove at the transverse bottom of the box girder top plate and the non-damaged anchor groove at the bottom, and is suitable for the sealing of the anchor groove where the bottom concrete falls off due to the removal of the transverse prestressed anchor box. Description of the drawings:

[0019] Figures 1-2 The overall front and side views of the utility model used at the damaged bottom of the anchor groove;

[0020] Figures 3-4 The overall front and side views of the utility model used at the non-damaged bottom of the anchor groove;

[0021] Figures 5-6 The front and side views of the utility model;

[0022] Figures 7-8 The front and side views of the hook of the utility model;

[0023] Figures 9-10 The front and side views of the triangular strut of the utility model;

[0024] Figures 11-12 Front and side views of the side formwork of the present utility model;

[0025] Figures 13-14 Front and side views of the bottom formwork of the present utility model;

[0026] Figures 15-16 Front and side views of the fixing rod of the present utility model;

[0027] Figure 17 Front view of the bolt of the present utility model;

[0028] Figure 18 is Figure 6 side view of large detail A of

[0029] Reference numerals in the figure:

[0030] 1 - hook, 2 - triangular strut, 3 - side formwork, 4 - bottom formwork, 5 - bolt, 6 - fixing rod, 7 - anchor plate, 8 - bottom damaged anchor groove, 9 - box girder wing plate, 10 - guardrail steel bar, 11 - bottom undamaged anchor groove.

[0031] 1.1 - hook screw rod, 1.2 - first gasket, 1.3 - first nut.

[0032] 2.1 - flat bar, 2.2 - inclined bar.

[0033] 3.1 - side plate, 3.2 - first stiffening rib, 3.3 - upper spacer, 3.4 - upper positioning plate, 3.5 - upper positioning block, 3.6 - inserted tube.

[0034] 4.1 - bottom plate, 4.2 - second stiffening rib, 4.3 - lower positioning block, 4.4 - lower positioning plate, 4.5 - lower spacer,

[0035] 4.6 - plug-in.

[0036] 5.1 - first screw rod, 5.2 - second nut, 5.3 - second gasket.

[0037] 6.1 - second screw rod, 6.2 - clamping plate, 6.3 - third nut. Specific implementation manners:

[0038] The present utility model will be further described below in conjunction with specific implementation manners. The specific implementation manners are further explanations of the principle of the present utility model and do not limit the present utility model in any way. The same or similar technologies as the present utility model do not exceed the protection scope of the present utility model.

[0039] See Figures 1-18, the utility model provides a transverse prestressed end-anchoring formwork for box girders. The end-anchoring formwork is fixed on the guardrail steel bars 10 at the top of the wing plate 9 of the bridge box girder, and it includes a hook 1, a triangular strut 2, a side formwork 3, a bottom formwork 4, bolts 5, and a fixing rod 6.

[0040] The fixing rod 6 is horizontally arranged, and both ends are respectively fixed on the cast-in-place embedded guardrail steel bars 10. The fixing rod 6 includes a second screw rod 6.1, a clamping plate 6.2, and a third nut 6.3. Both ends of the second screw rod 6.1 are respectively placed into the clamping plate 6.2 and screwed into the third nut 6.3, and the second screw rod 6.1 is fixed on the cast-in-place embedded guardrail steel bars 10 through the third nut 6.3 and the clamping plate 6.2.

[0041] The hook 1 includes a hooked screw rod 1.1, a first gasket 1.2, and a first nut 1.3; the hooked screw rod 1.1 passes through the side formwork 3 and the triangular strut 2 and is hooked to the second screw rod 6.1 of the fixing rod 6, so that the side formwork 3 is fastened on the side plate of the wing plate 9 of the box girder; the straight section of the hook 1 is screwed into the first nut 1.3 and the first gasket 1.2. There are two groups of the first nut 1.3 and the first gasket 1.2. One group is against the inner side of the side formwork 3 to prevent the side formwork 3 from slipping inwards, and the other group is against the outer side of the triangular strut 2 to prevent the side formwork 3 from falling off. According to the actual situation, the side formwork 3 is closely attached to the concrete surface of the side plate of the wing plate 9 of the box girder by adjusting the two first nuts 1.3 inside and outside the hook 1.

[0042] The side formwork 3 is vertically arranged. The side formwork 3 includes a side plate 3.1, a first stiffening rib 3.2, an upper cushion block 3.3, an upper positioning plate 3.4, an upper positioning block 3.5, and an embedded pipe 3.6; the first stiffening rib 3.2 includes a horizontal stiffening rib and a vertical stiffening rib; the vertical stiffening rib is a full-length stiffening rib and is welded to the side plate 3.1, and the horizontal stiffening rib is welded to the vertical stiffening rib and the side plate 3.1; the upper positioning plate 3.4 is welded to the bottom of the side plate 3.1; the upper cushion block 3.3, the upper positioning block 3.5 are welded to the upper positioning plate 3.4, and one end of the embedded pipe 3.6 is hollowed out, and the embedded pipe 3.6 is welded to the bottom of the side plate 3.1.

[0043] The triangular strut 2 is fixedly arranged with the side formwork 3. The triangular strut 2 includes a flat bar 2.1 and an inclined bar 2.2. One end of the inclined bar 2.2 is fixed at the end of the flat bar 2.1, and the other ends of the flat bar 2.1 and the inclined bar 2.2 are respectively fixed on the side formwork 3; welding is used between the inclined bar 2.2 and the flat bar 2.1, and between the other ends of the flat bar 2.1 and the inclined bar 2.2 and the side formwork 3.

[0044] For the damaged anchor groove 8 at the bottom of the box girder wing plate 9, the anchor sealing formwork is provided with a bottom formwork 4 and bolts 5. The bottom formwork 4 is arranged at the bottom of the box girder wing plate 9 and is perpendicular to the side formwork 3. The bottom formwork 4 includes a bottom plate 4.1, a second stiffening rib 4.2, a lower positioning block 4.3, a lower positioning plate 4.4, a lower spacer 4.5 and a plug-in part 4.6. The second stiffening rib 4.2 includes a transverse stiffening rib and a longitudinal stiffening rib. The longitudinal stiffening rib is a full-length stiffening rib and is welded to the bottom plate 4.1. The transverse stiffening rib is welded to the longitudinal stiffening rib and the bottom plate 4.1. The lower positioning plate 4.4 is welded to the end of the bottom plate 4.1. The lower spacer 4.5 and the lower positioning block 4.3 are welded to the lower positioning plate 4.4. One end of the plug-in part 4.6 is inserted into the embedded pipe 3.6 of the side formwork 3 and fits with the hollow part of the embedded pipe 3.6. The plug-in part 4.6 is welded to the end of the bottom plate 4.1.

[0045] The bottom formwork 4 and the side formwork 3 are fixed into a whole through the bolts 5, so that the bottom formwork 4 is closely attached to the bottom edge of the box girder wing plate 9. The bolt 5 includes a first screw rod 5.1, a second nut 5.2 and a second gasket 5.3. The first screw rod 5.1 passes through the side formwork 3 and the bottom formwork 4, and is screwed into the second gasket 5.3 and the second nut 5.2 at both ends respectively.

[0046] The anchor sealing formwork is used according to the following steps in actual use.

[0047] I. Factory processing and installation part

[0048] 1. Manufacture the hook 1 in the factory:

[0049] One end of the round steel of the hook screw rod 1.1 of the hook 1 is bent 180° in the factory, the bending diameter is 12 mm, and the other end is processed with threads, and the thread length is processed to the position 100 mm away from the hook. The first bolt 1.3 is manufactured using a mold.

[0050] 2. Manufacture the upper triangular strut 2 in the factory:

[0051] The flat bar 2.1 and the inclined bar 2.2 of the triangular strut 2 are cut from square steel, and the wall thicknesses are 3 mm and 2.5 mm respectively, and one end of the inclined bar 2.2 is welded to the end of the flat bar 2.1.

[0052] 3. Manufacture the side formwork 3 in the factory:

[0053] The side plate 3.1 of the side formwork 3 is cut from a steel plate. The vertical stiffeners are cut according to the height of the side plate 3.1, and are arranged at intervals of 50 mm along the width direction. At both ends of the side plate 3.1, the width of the vertical stiffeners is encrypted to be the same as the width of the flat bar 2.1 of the triangular strut 2. The transverse stiffeners are welded between two vertical stiffeners at intervals of 50 mm along the height direction of the side plate 3.1, and the first stiffener 3.2 is welded to the side plate 3.1. There are three steel plates in total for the upper positioning plate 3.4, which are arranged alternately with the embedded pipe 3.6. The upper positioning plate 3.4 is provided with screw holes and is welded to the side plate 3.1. The upper cushion block 3.3 and the upper positioning block 3.5 are made by a mold with screw holes inside. Align their screw holes with those of the upper positioning plate 3.4 and weld them. The embedded pipe 3.6 is made of a high-strength steel bar with one end hollowed out and is welded to the bottom of the side plate 3.1. The triangular strut 2 is welded to the side formwork 3.

[0054] 4. Fabricate the bottom formwork 4 in the factory:

[0055] The bottom plate 4.1 of the bottom formwork 4 is cut from a steel plate. The longitudinal stiffeners are cut according to the length of the bottom plate 4.1, and are arranged at intervals of 50 mm along the width direction. The transverse stiffeners are welded between two vertical stiffeners at intervals of 50 mm along the length direction of the bottom plate 4.1, and the second stiffener 4.2 is welded to the bottom plate 4.1. There are three steel plates in total for the lower positioning plate 4.4, which are arranged alternately with the plug-in part 4.6 and correspond to the position of the upper positioning plate 3.4. The lower positioning plate 4.4 is provided with screw holes and is welded to the bottom plate 4.1. The lower cushion block 4.5 and the lower positioning block 4.3 are made by a mold with screw holes inside. Align their screw holes with those of the lower positioning plate 4.4 and weld them. The plug-in part 4.6 is made of a high-strength steel bar with one end polished so that it can be inserted into the embedded pipe, and is welded to the end of the bottom plate 4.1.

[0056] 5. Fabricate the bolt 5 in the factory:

[0057] The first screw rod 5.1 is made by threading a steel bar, and the second nut 5.2 is made by a mold.

[0058] 6. Fabricate the fixing rod 6 in the factory:

[0059] The third nut 6.3 of the fixing rod 6 is made by a mold. The second screw rod 6.1 is made by threading a steel bar with a diameter of 10 mm. The clamping plate 6.2 is cut from a steel plate, and bolt holes are cut on it.

[0060] II. Specific usage method

[0061] After the device arrives at the site, conduct an acceptance inspection on the device. Check whether each weld is full, whether the formwork is deformed, whether the nut can be normally screwed into the screw rod. After each part has no defects, assemble the device. Determine whether it is necessary to install the bottom formwork according to whether the concrete at the bottom of the anchor groove is damaged.

[0062] For the undamaged anchor grooves 11 at the bottom of the box girder wing plate 9, first screw the hooked screw 1.1 of the hook 1 into a first nut 1.3 and a first gasket 1.2. The screwing positions are determined according to the length from the guardrail steel bar 10 to the side plate of the box girder wing plate 9. Then insert the non-hooked end of the hooked screw 1.1 into the flat bar 2.1 of the side formwork 3 and the triangular strut 2. Next, screw in the first gasket 1.2 and the first nut 1.3. Then place the fixing rod 6 in the guardrail steel bar 10, and fix the second screw 6.1 to the guardrail steel bar 10 by using the clamping plate 6.2 and the third nut 6.3. Finally, hook the hooked screw 1.1 of the hook 1 onto the second screw 6.1 of the fixing rod 6, and turn the two first nuts 1.3 on the hooked screw 1.1 to fasten the side formwork 3 and make it closely adhere to the concrete surface on the side of the box girder wing plate 9.

[0063] For the damaged anchor grooves 8 at the bottom of the box girder wing plate 9, before installing the side formwork 3 and the hook 1, first connect the bottom formwork 4 and the side formwork 3. First, position them through the insertion pipe 3.6 at the bottom of the side formwork 3, the upper positioning block 3.5, the plug-in part 4.6 at the end of the bottom formwork 4, and the lower positioning block 4.3. Insert the plug-in part 4.6 into the insertion pipe 3.6 to make the side formwork 3 and the bottom formwork 4 closely fit. Finally, install bolts 5 at the corresponding bolt hole positions, and tighten the bolts 5 to connect the bottom formwork 4 and the side formwork 3 into a whole. After the assembly is completed, hook the hooked screw 1.1 of the hook 1 onto the second screw 6.1 of the fixing rod 6, and turn the two first nuts 1.3 on the hooked screw 1.1 to fasten the side formwork 3 and make it closely adhere to the concrete surface on the side of the box girder wing plate 9, and make the bottom formwork 4 closely adhere to the bottom edge of the box girder wing plate 9 to complete the formwork installation.

[0064] III. Quality Requirements

[0065] During the welding process, it shall be ensured that all members are horizontal and vertical, and full welding shall be carried out at the welding parts. After welding, knock out the welding slag and conduct weld quality inspection to ensure that the weld length, depth, width, and reinforcement height meet the requirements. During the transportation and storage of each component, do not smash or press it violently to prevent deformation of the connection parts of each component, resulting in difficulties in later installation. After the above steps are completed, spray anti-rust materials on this device to improve its durability. During use, release agent shall be applied to the formwork, and the formwork shall not be removed violently.

Claims

1. A box girder transverse prestressed anchor template, characterized by: The anchoring template is fixed on the guardrail steel bar (10) at the top of the bridge box beam wing plate (9), and comprises a draw hook (1), a triangular support rod (2), a side template (3), and a fixing rod (6); the fixing rod (6) is arranged horizontally, and both ends are respectively fixed on the cast pre-buried guardrail steel bar (10); the side template (3) is arranged vertically, the triangular support rod (2) and the side template (3) are fixedly arranged, the triangular support rod (2) comprises a horizontal rod (2.1) and an inclined rod (2.2), the draw hook (1) is inserted into the side template (3 ) and the triangular support rod (2) are hooked on the fixing rod (6), so that the side template (3) is fastened to the side plate of the box beam wing plate (9); for the damaged anchor groove (8) at the bottom of the box beam wing plate (9), the sealing anchor template is also provided with a bottom template (4) and bolts (5), the bottom template (4) is arranged at the bottom of the box beam wing plate (9) and is arranged vertically with the side template (3), the bottom template (4) and the side template (3) are fixed to form a whole by bolts (5), so that the bottom template (4) and the bottom edge of the box beam wing plate (9) are tightly fitted.

2. The box girder transverse prestressed anchor template according to claim 1 is characterized in that: The fixing rod (6) comprises a second screw rod (6.1), a clamping plate (6.2) and a third nut (6.3); the second screw rod (6.1) is made of a steel rod with a diameter of 10 mm and a threaded thread; the clamping plate (6.2) is cut from a steel plate and has bolt holes cut thereon; the two ends of the second screw rod (6.1) are respectively placed in the clamping plate (6.2) and screwed into the third nut (6.3); the second screw rod (6.1) is fixed to the cast pre-buried guardrail steel bar (10) through the third nut (6.3) and the clamping plate (6.2); the hook (1) penetrates into the side formwork (3) and the triangular support rod (2) and is hooked with the second screw rod (6.1).

3. The box girder transverse prestressed anchor template according to claim 1 is characterized by: The hook (1) comprises a hook screw (1.1), a first gasket (1.2) and a first nut (1.3); the hook screw (1.1) penetrates into the side template (3) and the triangular support rod (2) and is hooked with the fixed rod (6); the hook screw (1.1) is made of round steel, one end of which is bent 180° with a bending diameter of 12 mm, and the other end is processed with a thread, the length of which is 100 mm from the bent hook; the straight section of the hook (1) is screwed Insert the first nut (1.3) and the first gasket (1.2), wherein the first nut (1.3) and the first gasket (1.2) are in two groups, one group being close to the inner side of the side formwork (3) for preventing the side formwork (3) from sliding inwards, and the other group being close to the outer side of the triangular support rod (2) for preventing the side formwork (3) from falling off, and the side formwork (3) is closely fitted to the concrete surface of the side plate of the box beam flange plate (9) by adjusting the two first nuts (1.3) inside and outside the draw hook (1).

4. The box girder transverse prestressed anchor template according to claim 1 is characterized by: The horizontal rod (2.1) and the diagonal rod (2.2) of the triangular support rod (2) are both made of square steel, and the wall thicknesses are 3 mm and 2.5 mm respectively; one end of the diagonal rod (2.2) is fixed to the end of the horizontal rod (2.1), and the other ends of the horizontal rod (2.1) and the diagonal rod (2.2) are respectively fixed to the side template (3); welding is adopted between the diagonal rod (2.2) and the horizontal rod (2.1), and between the other ends of the horizontal rod (2.1) and the diagonal rod (2.2) and the side template (3).

5. The box girder transverse prestressed anchor template according to claim 1 is characterized by: The side formwork (3) comprises a side plate (3.1), a first stiffening rib (3.2), an upper pad (3.3), an upper positioning plate (3.4), an upper positioning block (3.5) and an embedded pipe (3.6); the side plate (3.1) is cut from a steel plate, the first stiffening rib (3.2) comprises a transverse stiffening rib and a vertical stiffening rib; the vertical stiffening rib is a full-length stiffening rib and is welded to the side plate (3.1); the vertical stiffening rib is cut according to the height of the side plate (3.1) and is 50 mm in width direction; the width of the two ends of the side plate (3.1) is increased to be the same as the width of the flat rod (2.1) of the triangular support rod (2); the transverse stiffening rib, the vertical stiffening rib and the side plate (3.1) are connected to each other. 1) Welding, the transverse stiffening rib is welded between the two vertical stiffening ribs along the height direction of the side plate (3.1) at a distance of 50 mm; the upper positioning plate (3.4) is welded to the bottom of the side plate (3.1), the upper positioning plate (3.4) is made of steel plate, a total of three pieces, arranged alternately with the embedded pipe (3.6), and the upper positioning plate (3.4) is provided with a screw hole; the upper cushion block (3.3) and the upper positioning block (3.5) are welded to the upper positioning plate (3.4), and the upper cushion block (3.3) and the upper positioning block (3.5) are provided with screw holes inside, which are aligned with the screw holes of the upper positioning plate (3.4); the embedded pipe (3.6) is made of high-strength round steel, one end of which is hollowed out and welded to the bottom of the side plate (3.1).

6. The box girder transverse prestressed anchor template according to claim 1 is characterized by: The bottom template (4) comprises a bottom plate (4.1), a second stiffening rib (4.2), a lower positioning block (4.3), a lower positioning plate (4.4), a lower pad (4.5) and a plug-in (4.6); the bottom plate (4.1) is cut from a steel plate, the second stiffening rib (4.2) comprises a transverse stiffening rib and a longitudinal stiffening rib; the longitudinal stiffening rib is a full-length stiffening rib and is welded to the bottom plate (4.1); the longitudinal stiffening rib is cut according to the length of the bottom plate (4.1) and is cut 50 mm in a width direction; the transverse stiffening rib is welded to the longitudinal stiffening rib and the bottom plate (4.1); the transverse stiffening rib is welded between two vertical stiffening ribs and is welded 50 mm in a length direction of the bottom plate (4.1) mm; a lower positioning plate (4.4) is welded to the end of the bottom plate (4.1); the lower positioning plates (4.4) are made of steel plates, a total of three pieces, which are arranged alternately with the plug-in (4.6) and correspond to the position of the upper positioning plate (3.4) of the side template (3); the lower positioning plate (4.4) is provided with a screw hole; the lower cushion block (4.5), the lower positioning block (4.3) and the lower positioning plate (4.4) are welded; the lower cushion block (4.5) and the lower positioning block (4.3) are provided with screw holes inside, which are aligned with the screw holes of the lower positioning plate (4.4); the plug-in (4.6) is made of high-strength round steel, one end of which is inserted into the embedded pipe (3.6) of the side template (3) and is welded to the end of the bottom plate (4.1).

7. The box girder transverse prestressed anchor template according to claim 1 is characterized by: The bolt (5) comprises a first screw rod (5.1), a second nut (5.2) and a second gasket (5.3); the first screw rod (5.1) is made of a steel rod with a thread; the first screw rod (5.1) passes through the side template (3) and the bottom template (4), and the second gasket (5.3) and the second nut (5.2) are screwed into the two ends respectively.

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