An outsourced bridge guardrail template and installation method thereof

Abstract

The present application relates to an outsourced bridge guardrail template and an installation method thereof, which comprises an inner template and an outer template with the same composition structure, wherein the top walls of the inner template and the outer template are evenly provided with a number of lifting rings for lifting, and also comprises a number of fixing components and a number of connecting components connecting the inner template and the outer template, wherein the fixing components and the connecting components are distributed along the length direction of the bridge; the connecting components comprise a connecting frame, a connecting rod, a gasket, a positioning nut and two sets of limit frames; the two limit frames are respectively arranged on the side of the inner template and the outer template which are away from each other, and the connecting frame is detachably connected to the top walls of the two limit frames; the connecting rod passes through the inner template, the steel bar skeleton and the outer template in sequence, and the two ends of the connecting rod pass through the limit frame and the gasket in sequence and are threadedly connected with the positioning nut, and the gasket and the positioning nut on the side close to the outer template are fixed on the limit frame. The present application can reduce the working intensity of construction personnel in a suspended state, simplify the operation, and improve the construction safety.

Description

Technical Field

[0001] The present application relates to the field of bridge construction, and in particular to an outsourced bridge guardrail template and an installation method thereof. Background Art

[0002] Guardrails are generally installed on both sides of the road to prevent pedestrians and vehicles from losing control and running off the lanes, especially on highways, bridges and other viaducts. The bridge deck is above the ground and guardrails are set on both sides of the road to prevent vehicles from breaking through the middle guardrail and affecting oncoming vehicles, or flipping over the bridge or viaduct, so as to protect pedestrians and driving safety.

[0003] Guardrails are generally made of reinforced concrete. The guardrail steel bars are erected and welded one by one to the steel bars reserved on the side of the road. Then, horizontal steel bars are tied to multiple guardrail steel bars to form the steel skeleton of the guardrail, and then the casting mold is installed. The guardrail template includes an inner template and an outer template. The inner template is installed on the inner side of the bridge, and the outer template is installed on the outermost high-altitude surface and surrounds the steel skeleton. When installing and positioning the inner and outer templates, traditional construction operations mostly use hanging plates, hanging cages, or scaffolding tubes and fasteners to make a simple hanging bracket. Construction workers stand on these hanging tools to operate, and some build scaffolding under the bridge and gradually move forward according to the construction progress to achieve the installation of the outer template.

[0004] With regard to the above-mentioned related technologies, the outer formwork needs to be connected to the inner formwork in a suspended state and fixed on the bridge deck in this state. The inventor believes that when installing and removing the outer formwork, the construction workers have high work intensity and difficulty in operation in a suspended state, and there is a great safety risk. Summary of the invention

[0005] In order to reduce the working intensity of construction workers in a suspended state, simplify operations, and improve construction safety, the present application provides an outsourced bridge guardrail template and an installation method thereof.

[0006] In the first aspect, the outsourced bridge guardrail template provided by the present application adopts the following technical solution:

[0007] An outsourced bridge guardrail formwork, comprising an inner formwork and an outer formwork with the same composition structure, wherein the top walls of the inner formwork and the outer formwork are evenly provided with a plurality of lifting rings for lifting, and further comprising a plurality of fixing components and a plurality of connecting components connecting the inner formwork and the outer formwork, wherein the fixing components and the connecting components are distributed along the length direction of the bridge; the connecting components comprise a connecting frame, a connecting rod, a gasket, a positioning nut and two groups of limiting frames; the two limiting frames are respectively arranged on the sides of the inner formwork and the outer formwork which are away from each other, and the connecting frame is detachably connected to the top walls of the two limiting frames; the connecting rod passes through the inner formwork, the steel bar skeleton and the outer formwork in sequence, and both ends of the connecting rod pass through the limiting frames and the gasket in sequence and are threadedly connected to the positioning nut, and the gasket and the positioning nut close to the side of the outer formwork are fixed on the limiting frames.

[0008] By adopting the above technical scheme, after the steel skeleton is tied, the inner and outer templates are installed accordingly. After the inner and outer templates are hoisted to the installation position, the limit frames and the connecting frames are assembled, and then the limit frames are placed on both sides of the inner and outer templates. Then, the connecting rod is passed through the inner and outer templates, the connecting rod is rotated, and the connecting rod is threadedly connected to the positioning nut on one side of the outer template. Then, the gasket and the positioning nut on one side of the inner template are installed to complete the connection between the two templates. Finally, the template is fixed to the bridge through the fixing assembly to complete the installation of the mold; the provided lifting ring is used to lift the mold, and the provided connecting frame, connecting rod, gasket, Positioning nuts and two sets of limit frames, the limit frames are arranged on both sides of the mold to limit the inner template and the outer template, the gasket and the positioning nuts are welded to the limit frames on one side of the outer template, so that the construction personnel can rotate the connecting rod on one side of the bridge to connect with the positioning nuts at the suspended part outside the bridge, so as to realize the connection or disassembly of the inner and outer templates, reduce the construction intensity of the construction personnel in the suspended state, reduce the difficulty of operation and safety hazards; through the connecting frame, it is connected with the limit frame to limit the template above the template, and at the same time maintain the relative position between the two limit frames, reduce the offset of the limit frames, improve the stability of the template installation, and improve the loading and unloading efficiency.

[0009] Optionally, the inner template includes an inner plate and a side plate and a plurality of reinforcing ribs arranged on the same side of the inner plate, the side plate is arranged around the inner plate and close to the peripheral side wall of the inner plate, and a plurality of connecting holes are opened on the side plate; the reinforcing ribs are arranged between the side plates.

[0010] By adopting the above technical solution, the inner plate, side plate and reinforcing rib plate are set, the inner plates are close to each other to form the shape of the guardrail, the side plates and the connecting holes on the side plates facilitate the connection of adjacent formworks, and facilitate the one-time casting of a certain length of guardrails. The supporting strength and stability of the formwork are increased by the reinforcing rib plate, and the inner plate is supported during the self-solidification process of concrete to increase the strength of the inner plate.

[0011] Optionally, the limiting frame includes two parallel mounting plates and positioning plates evenly arranged on the two mounting plates; the connecting rod is arranged between the two mounting plates and between two adjacent reinforcement ribs.

[0012] By adopting the above technical solution, a mounting plate and a positioning plate are set, and the positioning plate connects the two mounting plates to form a frame of the limit frame, which limits and supports the inner template and the outer template. At the same time, it is convenient for the connecting rod to pass through the gap between the two mounting plates and be fixed by the gasket. The gap between the mounting plates is large and easy to adjust.

[0013] Optionally, the fixing assembly includes a pull rod, a connecting plate and an insertion rod, the connecting plate is arranged at one end of the pull rod, the connecting plate is arranged between the two mounting plates, the insertion rod is arranged transversely and vertically through the two mounting plates and the connecting plate, and the end of the pull rod away from the connecting plate is used to connect and fix to the steel bars on the bridge deck.

[0014] By adopting the above technical solution, the pull rod, connecting plate and insert rod are set. After the connection and positioning between the inner formwork and the outer formwork are completed, the connecting plate is extended between the two mounting plates, and the insert rod is used to simultaneously pass through the two mounting plates and the connecting plate for positioning. When the overall position of the formwork is determined, the other end of the pull rod is welded to the steel bars of the bridge deck, and the overall fixation of the formwork is achieved by pulling the inner formwork vertically, and the formwork is fixed to the bridge, so as to pour concrete.

[0015] Optionally, the connecting frame includes a cross bar and a connecting screw, one end of the connecting screw is arranged on the cross bar, and the other end is arranged on the mounting plate, and both ends of the connecting screw are respectively threadedly connected to the cross bar and the mounting plate.

[0016] By adopting the above technical solution, the cross bar and connecting screws are arranged horizontally on the template, and the two limit frames are connected by the connecting screws, which is convenient for disassembly and assembly. When the template is installed, the cross bar and the limit frame are assembled in advance, and the inner template and the outer template are directly positioned. When the template is disassembled, it can also be directly disassembled and then separated. Each part can be replaced separately, which is convenient for transportation and saves space.

[0017] Optionally, a baffle is provided on one side of the limiting frame close to the inner template, and the baffle is tightly against the top walls of the inner template and the outer template.

[0018] By adopting the above technical solution, a baffle is set. When the limit frame is installed, one end of the limit frame is set along the vertical direction of the template. The baffle is clamped on the top wall of the inner template and the outer template to determine the installation height of the limit frame, which is convenient for the insertion of the push rod and the quick connection between the push rod and the positioning nuts at both ends, thereby improving the installation efficiency.

[0019] Optionally, the outer formwork includes a forming section, an inner buckle section and a material blocking plate in sequence from top to bottom along the height direction. The forming section is arranged flush with the inner formwork, the inner buckle section is used to buckle outwardly on the side wall of the bridge, and the material blocking plate is arranged at an angle, one end of which is connected to the inner buckle section, and the other end is used to abut against the bottom of the bridge.

[0020] By adopting the above technical scheme, the forming section, the inner buckle section and the material blocking plate are set, and the forming section cooperates with the inner template to form the vertical section of the guardrail, and the casting cavity is formed by the inner buckle section, the material blocking plate and the bridge, forming the inner buckle part of the guardrail wrapped around the outside of the bridge, so that the inner template, the outer template and the bridge jointly form the casting template of the guardrail, strengthen the connection relationship between the guardrail and the bridge, and improve the supporting stability of the guardrail.

[0021] Optionally, a horizontal abutment plate is provided on the side of the material blocking plate away from the inner buckle section, a connecting glue is provided on the abutment plate, and the abutment plate is tightly pressed against the bottom surface of the bridge through the connecting glue.

[0022] By adopting the above technical solution, the abutment plate and connecting glue are set, and the contact area is increased by the abutment plate against the bottom of the bridge. The installation accuracy of the outer formwork is improved through the surface contact between the two. At the same time, during installation, the abutment of the abutment plate to the bottom of the bridge is adjusted and pre-positioned through the connecting glue, which facilitates the subsequent installation and positioning of the inner formwork, reduces the shaking of the outer formwork, and improves the installation accuracy of the formwork as a whole.

[0023] In the second aspect, the present application provides a method for installing an outsourced bridge guardrail template, which adopts the following technical solution:

[0024] A method for installing an outsourced bridge guardrail template comprises the following steps:

[0025] S1: The crane is on the bridge deck, and the inner and outer formwork are lifted by the crane. The inner and outer formwork are flush with the top wall of the outer formwork, and the inner and outer formwork are lifted at the same time;

[0026] S2: Limit the inner and outer templates through auxiliary parts;

[0027] S3: Move the formwork to the side of the bridge, and cover both sides of the steel frame with the inner and outer formwork from top to bottom;

[0028] S4: Adjust the outer formwork to buckle on the bottom wall of the bridge, and adjust the inner formwork to be parallel to the inner formwork;

[0029] S5: Install the connecting frame and two limit frames, and buckle the limit frames and the connecting frame in a "U" shape on both sides of the template;

[0030] S6: Use the connecting rod to pass through the limit frame, inner formwork, steel frame, outer formwork, limit frame and gasket from the inner formwork side in sequence, and rotate the connecting rod at the same time so that the connecting rod is threadedly connected with the positioning nut on the suspended side, and then install the gasket and positioning nut on the inner side of the bridge to complete the connection between the inner formwork and the outer formwork;

[0031] S7: Fix the inner and outer formwork to the bridge by fixing the assembly price to complete the installation of the mold.

[0032] By adopting the above technical scheme, the inner template and the outer template are connected by a crane, and in cooperation with auxiliary parts, the templates are pre-positioned when the two templates are corresponding to each other to reduce mold collision. Then, the mold installation position is adjusted. When the installation position of the outer template is determined, the installation position of the inner template can be determined at the same time; then, the inner and outer templates are connected on one side of the bridge deck through a limit frame and a connecting rod, and there is no need to install and fix them in the air outside the bridge, which improves safety. Finally, the template is fixed on the bridge to realize the installation of the mold.

[0033] Optionally, the auxiliary component includes an auxiliary clamping seat, two groups of limiting cylinders and a clamp, the auxiliary clamping seat is buckled on the outside of the inner template and the outer template, the limiting cylinder is arranged on the auxiliary clamping groove, and the piston rods of the two limiting cylinders are coaxial and arranged on the sides away from each other; the clamp is arranged at one end of the piston rod of the limiting cylinder, and the two clamps are respectively clamped on the angles between the top wall and the inner wall of the inner template and the outer template.

[0034] By adopting the above technical solution, the auxiliary clamping seat, the limit cylinder and the clamp are set, so that during hoisting, the limit cylinder can push the inner template and the outer template away from each other, control the closest distance between the two templates, and limit the farthest distance between the two molds through the auxiliary clamping seat, so as to pre-position the inner template and the outer template during the hoisting process, reduce the shaking of the template and the collision between the two, protect the template, and at the same time facilitate the outer template to extend to the outside of the bridge, thereby increasing the installation space.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The connecting frame, connecting rod, gasket, positioning nut and two sets of limiting frames are set. The limiting frames are set on both sides of the mold to limit the inner template and the outer template. The gasket and positioning nut are welded on the limiting frame on the side of the outer template, so that the construction personnel can turn the connecting rod on one side of the bridge to connect with the positioning nut at the suspended part outside the bridge, so as to realize the connection or disassembly of the inner and outer templates, reduce the construction intensity of the construction personnel in the suspended state, reduce the difficulty of operation and safety hazards; through the connecting frame, it is connected with the limiting frame to limit the template above the template, while maintaining the relative position between the two limiting frames, reducing the deviation of the limiting frame, improving the stability of the template installation, and improving the loading and unloading efficiency;

[0037] 2. After the connection and positioning between the inner formwork and the outer formwork are completed, the connecting piece is inserted between the two mounting plates, and the insert rod is passed through the two mounting plates and the connecting piece at the same time for positioning. When the overall position of the formwork is determined, the other end of the tie rod is welded to the steel bars of the bridge deck, and the inner formwork is pulled vertically to fix the entire formwork, and the formwork is fixed on the bridge, so as to pour concrete;

[0038] 3. Connect the inner and outer templates through a crane, and cooperate with auxiliary parts to pre-position the templates when the two templates are corresponding to each other to reduce mold collision. Then adjust the mold installation position. The installation position of the inner template can be determined at the same time as the installation position of the outer template, and it can be determined at one time; then connect the inner and outer templates on one side of the bridge deck through a limit frame and a connecting rod. There is no need to install and fix them in the air outside the bridge, which improves safety. Finally, fix the template on the bridge to realize the installation of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the outsourced bridge guardrail template in the embodiment of the present application.

[0040] Figure 2 yes Figure 1 Enlarged view of part A.

[0041] Figure 3 yes Figure 1 Figure 1 Schematic diagram of the structure of Chinese and foreign templates.

[0042] Figure 4 yes Figure 1 Schematic diagram of the structure of the connected components.

[0043] Figure 5 yes Figure 1 Side view of.

[0044] Figure 6 This is a schematic diagram of the template lifting.

[0045] Explanation of the reference numerals: 1. Inner template; 11. Inner plate; 12. Side plate; 121. Connecting hole; 13. Reinforcing rib; 14. Lifting ring; 15. Mounting hole; 2. Outer template; 21. Forming section; 22. Inner buckle section; 23. Material blocking plate; 231. Waist-shaped hole; 24. Abutment plate; 3. Fixing assembly; 31. Pull rod; 32. Connecting plate; 33. Insert rod; 4. Connecting assembly; 41. Connecting frame; 411. Cross bar; 412. Connecting screw; 42. Connecting rod; 43. Gasket; 44. Positioning nut; 45. Limiting frame; 451. Mounting plate; 452. Positioning plate; 46. Baffle; 47. Limiting rod; 5. Auxiliary parts; 51. Auxiliary holder; 52. Limiting cylinder; 53. Fixture. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-6 This application is described in further detail.

[0047] The present application embodiment discloses an outsourced bridge guardrail template. Figure 1 The outsourced bridge guardrail template includes an inner template 1, an outer template 2, a plurality of fixing components 3 and a connecting component 4; the steel bar skeleton of the bridge is welded to the reserved steel bars on both sides of the bridge, and extends out of the bridge and is set beyond the bottom wall of the bridge. Multiple fixing components 3 and connecting components 4 are distributed along the length direction of the bridge, and the connecting component 4 is used to connect the inner template 1 and the outer template 2; the fixing components 3 are set on each connecting component 4, and the connecting components 4 are pulled to be fixed on the bridge.

[0048] Reference Figure 1 and Figure 2 The inner formwork 1 includes an inner plate 11, a side plate 12 and a plurality of reinforcing ribs 13. The side plate 12 and the reinforcing ribs 13 are arranged on the same side of the inner plate 11. The side plate 12 is arranged around the inner plate 11 and welded to the peripheral side wall of the inner plate 11. A plurality of connecting holes 121 are evenly opened on the side plate 12 for connecting and fixing with adjacent formwork bolts; the reinforcing ribs 13 are provided with transverse ribs and vertical ribs. The reinforcing ribs 13 are welded to the inner plate 11, and the two ends are welded to the side plates 12 to reinforce and support the inner plate 11.

[0049] Reference Figure 3 The outer formwork 2 has the same structure as the inner formwork 1, and the top walls of the inner formwork 1 and the outer formwork 2 are evenly provided with a number of lifting rings 14 for lifting. The outer formwork 2 includes a mold section 21, an inner buckle section 22 and a material retaining plate 23 in order from top to bottom along the height direction; the mold section 21 is arranged flush with the inner formwork 1, and the inner buckle section 22 is covered on the outside of the steel skeleton and buckled on the side wall of the bridge; the material retaining plate 23 is inclined and has a number of waist-shaped holes 231 along the length direction, one end of the material retaining plate 23 is threadedly connected to the inner buckle section 22 through a bolt passing through the waist-shaped hole 231, and a horizontal abutment plate 24 is welded on the other end; the abutment plate 24 is parallel to the bottom surface of the bridge, and a double-sided connection glue is adhered to the abutment plate 24, and is used to abut against the bottom of the bridge.

[0050] Reference Figure 4The connection assembly 4 includes a connection frame 41, a connecting rod 42, a gasket 43, a positioning nut 44 and two sets of limit frames 45; the limit frame 45 includes two parallel mounting plates 451 and positioning plates 452 uniformly welded on the two mounting plates 451; a baffle 46 is welded on the side of the limit frame 45 close to the inner template 1, and the baffle 46 is tightly against the top wall of the inner template 1 and the outer template 2. The connection frame 41 includes a crossbar 411 and a connecting screw 412, the crossbar 411 is horizontal, and one end of the crossbar 411 is welded to the mounting plate 451 on one side of the inner template 1, and the other end faces the outside of the bridge, the connecting screw 412 is vertical, one end passes through the crossbar 411 and is fixed to the crossbar 411 by a nut, and the other end passes through the mounting plate 451 on one side of the outer template 2 and is fixed by a nut, which can be adjusted according to the installation situation of the outer template 2, and has higher applicability.

[0051] Reference Figure 4 The connecting rod 42 is horizontally arranged close to the bridge deck. The inner formwork 1 and the outer formwork 2 are both provided with mounting holes 15 through which the active connecting rod 42 passes. The connecting rod 42 passes between two mounting plates 451 and is arranged between two adjacent transverse ribs. The connecting rod 42 passes through the inner formwork 1, the steel skeleton and the outer formwork 2 in sequence. Both ends of the connecting rod 42 pass through between the two mounting plates 451 in sequence, and pass through the gasket 43 to be threadedly connected with the positioning nut 44. The gasket 43 close to the side of the outer formwork 2 is welded to the limit frame 45, and the positioning nut 44 is welded to the gasket 43.

[0052] Reference Figure 1 A limit rod 47 parallel to the connecting rod 42 is provided between the two left and right connecting frames 41. The limit rod 47 is provided above the template, and the diameter of the limit rod 47 is greater than the distance between the two mounting plates 451. Screws are coaxially provided at both ends of the limit rod 47. The screws pass through the mounting plates 451 and are positioned in the same manner as the connecting rod 42. The screws pass through the pads and are threadedly connected to the positioning nuts 44. The limit rod 47 can control the minimum distance between the inner template 1 and the outer template 2, thereby controlling the thickness of the guardrail, and can also reinforce the connection between the inner template 1 and the outer template 2.

[0053] Reference Figure 1 and Figure 5 The fixing assembly 3 includes a pull rod 31, a connecting plate 32 and an insertion rod 33. The connecting plate 32 is welded to one end of the pull rod 31, and the connecting plate 32 is inserted between the two mounting plates 451; the mounting plates 451 and the connecting plate 32 are both provided with insertion holes for the insertion of the functional insertion rod 33, and the insertion rod 33 passes through the two mounting plates 451 and the connecting plate 32 horizontally and vertically. The insertion rod 33 is in the same direction as the length of the bridge, and the end of the pull rod 31 away from the connecting plate 32 is used for welding to the steel bars on the bridge deck. The inner formwork 1, the bridge deck and the pull rod 31 form a triangle, thereby realizing the installation of the formwork.

[0054] The implementation principle of an outsourced bridge guardrail formwork in an embodiment of the present application is as follows: the outer formwork 2 is set to be outsourced, and cooperates with the inner formwork 1 to form a guardrail casting formwork; the limit frame 45 is set on both sides of the mold to limit the inner formwork 1 and the outer formwork 2, and the gasket 43 and the positioning nut 44 are welded to the limit frame 45 on one side of the outer formwork 2, so that the construction personnel can rotate the connecting rod 42 on one side of the bridge to connect with the positioning nut 44 at the suspended part outside the bridge, thereby realizing the connection or disassembly of the inner and outer formworks 2, reducing the construction intensity of the construction personnel in the suspended state, reducing the difficulty of operation and safety hazards; the connecting frame 41 and the limit rod 47 can reinforce the inner formwork 1 and the outer formwork 2 while maintaining the relative position between the two limit frames 45, reducing the offset of the limit frames 45, improving the stability of the formwork installation, and improving the loading and unloading efficiency.

[0055] The present application also discloses a method for installing an outsourced bridge guardrail template, referring to Figure 1 and Figure 5 , using the above-mentioned outsourced bridge guardrail template, including the following steps:

[0056] S1: The crane is on the bridge deck, and the inner formwork 1 and the outer formwork 2 are lifted by the crane. The inner formwork 1 and the outer formwork 2 are flush with the top wall, and the inner formwork 1 and the outer formwork 2 are lifted at the same time;

[0057] S2: Limit the inner template 1 and the outer template 2 by using the auxiliary component 5;

[0058] Reference Figure 6 The auxiliary component 5 includes an auxiliary clamping seat 51, two sets of limiting cylinders 52 and a clamp 53. The auxiliary clamping seat 51 is set in an inverted "U" shape. The auxiliary clamping seat 51 is buckled from top to bottom on the outside of the inner template 1 and the outer template 2; the limiting cylinder 52 is bolted to the inner wall of the auxiliary clamping groove, and the piston rods of the two limiting cylinders 52 are coaxial and set on the side away from each other; the clamp 53 is bolted to one end of the piston rod of the limiting cylinder 52, and the two clamps 53 are respectively clamped at the angle between the top wall and the inner wall of the inner template 1 and the outer template 2;

[0059] The auxiliary clamping seat 51 is buckled on the outer side of the inner template 1 and the outer template 2 from top to bottom; the limit cylinder 52 is started, so that the piston rod of the limit cylinder 52 drives the clamp 53 to clamp on the angle between the top wall and the inner wall of the inner template 1 and the outer template 2 respectively, until the template is tightly pressed between the clamp 53 and the auxiliary clamping seat 51;

[0060] S3: Move the formwork to the side of the bridge, and cover and wrap the inner formwork 1 and the outer formwork 2 from top to bottom on both sides of the steel skeleton;

[0061] S4: Adjust the limit cylinder 52, and then adjust the outer template 2 to buckle on the bottom wall of the bridge. The abutment plate 24 is tightly pressed against and adhered to the bottom of the bridge under the action of the connecting glue, and the pre-positioning of the outer template 2 is completed. Then, the inner template 1 is adjusted to be parallel to the inner template 1 according to the outer template 2, and then the auxiliary component 5 is removed;

[0062] S5: One end of the connecting screw 412 is threadedly connected to the crossbar 411, and the other end is threadedly connected to the mounting plate 451 on one side of the outer template 2, and the bottom walls of the two limit frames 45 are flush; the limit frame 45 and the connecting frame 41 are buckled in a "U" shape on both sides of the template, the baffle 46 is abutted against the top wall of the inner template 1, and the connecting hole 121 is adjusted to be between the two mounting plates 451;

[0063] S6: Use the connecting rod 42 to pass through the limiting frame 45, the inner formwork 1, the steel frame, the outer formwork 2, the limiting frame 45 and the gasket 43 from one side of the inner formwork 1 in sequence, and rotate the connecting rod 42 at the same time, so that the connecting rod 42 is threadedly connected with the positioning nut 44 on the suspended side, and then install the gasket 43 and the positioning nut 44 on the inner side of the bridge; install the limiting rod 47, the screws at both ends of the limiting rod 47 pass through between the two mounting plates 451, and are fixed by the gasket 43 and the positioning nut 44, and finally tighten the positioning nut 44 at the pull rod 31, so that the two ends of the limiting rod 47 are tightly against the mounting plate 451, and the connection between the inner formwork 1 and the outer formwork 2 is completed;

[0064] S7: Move the pull rod 31 so that one end of the connecting plate 32 extends between the two mounting plates 451 on one side of the inner formwork 1, and the insert rod 33 passes through the two mounting plates 451 and the connecting plate 32 horizontally and vertically. Finally, weld the end of the pull rod 31 away from the connecting plate 32 to the steel bar on the bridge deck to fix the mold and complete the installation of the mold.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for installing an outsourced bridge guardrail formwork, characterized in that: An outsourced bridge guardrail template is used, which includes an inner template (1) and an outer template (2) of the same structure. The top walls of the inner template (1) and the outer template (2) are evenly provided with a plurality of lifting rings (14) for lifting. The inner template (1) includes an inner plate (11) and a side plate (12) and a plurality of reinforcing ribs (13) arranged on the same side of the inner plate (11). The side plate (12) is arranged around the inner plate (11) and close to the peripheral side wall of the inner plate (11). The side plate (12) is provided with a plurality of connecting holes (121); the reinforcing ribs (13) are arranged between the side plates (12); The invention also comprises a plurality of fixing components (3) and a plurality of connecting components (4) connecting the inner formwork (1) and the outer formwork (2), wherein the fixing components (3) and the connecting components (4) are distributed along the length direction of the bridge; the connecting components (4) comprise a connecting frame (41), a connecting rod (42), a gasket (43), a positioning nut (44) and two sets of limiting frames (45); the two limiting frames (45) are respectively arranged on the sides of the inner formwork (1) and the outer formwork (2) which are away from each other, and the connecting frame (41) is detachably connected to the top walls of the two limiting frames (45); the connecting rod (42) passes through the inner formwork (1), the steel bar skeleton and the outer formwork (2) in sequence, and the two ends of the connecting rod (42) pass through the limiting frames (45) and the gasket (43) in sequence and are connected to the positioning nuts (44) ) are threadedly connected, the gasket (43) and the positioning nut (44) on one side close to the outer template (2) are fixedly mounted on the limiting frame (45); the limiting frame (45) includes two parallel mounting plates (451) and positioning plates (452) evenly arranged on the two mounting plates (451); the connecting rod (42) is arranged between the two mounting plates (451) and between two adjacent reinforcing ribs (13); the connecting frame (41) includes a cross bar (411) and a connecting screw (412), one end of the connecting screw (412) is arranged on the cross bar (411), and the other end is arranged on the mounting plate (451), and the two ends of the connecting screw (412) are respectively threadedly connected to the cross bar (411) and the mounting plate (451); A limiting rod (47) parallel to the connecting rod (42) is arranged between the two left and right connecting frames (41), the limiting rod (47) is arranged above the template, and the diameter of the limiting rod (47) is greater than the distance between the two mounting plates (451), screws are coaxially arranged at both ends of the limiting rod (47), the screws pass through between the mounting plates (451) and are positioned in the same manner as the connecting rod (42), the screws pass through the gasket (43) and are threadedly connected to the positioning nut (44); The following steps are also included: S1: The crane is on the bridge deck, and the inner formwork (1) and the outer formwork (2) are lifted by the crane, so that the top walls of the inner formwork (1) and the outer formwork (2) are flush, and the inner formwork (1) and the outer formwork (2) are lifted at the same time; S2: limiting the inner template (1) and the outer template (2) by using the auxiliary component (5); The auxiliary component (5) comprises an auxiliary clamping seat (51), two groups of limiting cylinders (52) and a clamp (53); the auxiliary clamping seat (51) is buckled on the outside of the inner template (1) and the outer template (2); the limiting cylinder (52) is arranged on the auxiliary clamping groove, and the piston rods of the two limiting cylinders (52) are coaxial and arranged on the side away from each other; the clamp (53) is arranged at one end of the piston rod of the limiting cylinder (52), and the two clamps (53) are respectively clamped on the angles between the top wall and the inner wall of the inner template (1) and the outer template (2); S3: Move the formwork to the side of the bridge, and cover both sides of the steel frame from top to bottom using the inner formwork (1) and the outer formwork (2); S4: adjust the outer template (2) to buckle on the bottom wall of the bridge, and adjust the inner template (1) to be parallel to the inner template (1); S5: Install the connecting frame (41) and the two limiting frames (45), and buckle the limiting frames (45) and the connecting frame (41) in a "U" shape on both sides of the template; S6: Use the connecting rod (42) to sequentially pass through the limiting frame (45), the inner formwork (1), the steel bar skeleton, the outer formwork (2), the limiting frame (45) and the gasket (43) from one side of the inner formwork (1), and rotate the connecting rod (42) at the same time, so that the connecting rod (42) is threadedly connected with the positioning nut (44) on the suspended side, and then install the gasket (43) and the positioning nut (44) on the inner side of the bridge to complete the connection between the inner formwork (1) and the outer formwork (2); S7: The inner formwork (1) and the outer formwork (2) are fixed to the bridge through the fixing assembly (3), thereby completing the installation of the mold.

2. The installation method of the outsourced bridge guardrail formwork according to claim 1 is characterized in that: The fixing assembly (3) comprises a pull rod (31), a connecting plate (32) and an insertion rod (33), wherein the connecting plate (32) is arranged at one end of the pull rod (31), the connecting plate (32) is arranged between the two mounting plates (451), the insertion rod (33) is arranged to pass through the two mounting plates (451) and the connecting plate (32) transversely and vertically, and the end of the pull rod (31) away from the connecting plate (32) is used for connecting and fixing with the steel bars on the bridge deck.

3. The installation method of the outsourced bridge guardrail formwork according to claim 1 is characterized in that: A baffle (46) is provided on one side of the limiting frame (45) close to the inner template (1), and the baffle (46) is tightly pressed against the top walls of the inner template (1) and the outer template (2).

4. The installation method of the outsourced bridge guardrail formwork according to claim 1 is characterized in that: The outer formwork (2) comprises a forming section (21), an inner buckle section (22) and a material blocking plate (23) in order from top to bottom along the height direction; the forming section (21) is arranged flush with the inner formwork (1); the inner buckle section (22) is used to buckle outwardly on the side wall of the bridge; the material blocking plate (23) is arranged obliquely, one end of which is connected to the inner buckle section (22) and the other end of which is used to abut against the bottom of the bridge.

5. The installation method of the outsourced bridge guardrail formwork according to claim 4 is characterized in that: A horizontal abutment plate (24) is arranged on one side of the material blocking plate (23) away from the inner buckle section (22), a connecting glue is arranged on the abutment plate (24), and the abutment plate (24) is tightly abutted against the bottom surface of the bridge through the connecting glue.

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