Adjustable bracket and installation method for water high narrow variable cross-section pier segment beam 0 block

Abstract

The application discloses a water high-narrow variable cross-section pier body segment beam No. 0 block adjustable bracket and a mounting method. The water high-narrow variable cross-section pier body segment beam No. 0 block adjustable bracket comprises a steel cushion box and two groups of half-width brackets, the steel cushion box is installed in a groove at the top of the pier body, the side wall of the steel cushion box is obliquely arranged to be matched with the side wall of the groove, the two groups of half-width brackets are connected through a first pair of pull rods and a second pair of pull rods, the first pair of pull rods and the second pair of pull rods are arranged at the two ends of the half-width bracket in the vertical direction, and the first pair of pull rods passes through the steel cushion box. The steel cushion box is matched with the two groups of half-width brackets, the structure has high coincidence degree, the stress is stable and reliable, the oblique steel cushion box forms a multi-section steel cushion box design, local stress concentration caused by the mismatched mounting surface is effectively avoided, the overall stability of the bracket system is improved, the possibility of sliding of the half-width bracket is reduced, the half-width bracket and the steel cushion box form a modular design, high-altitude operation is reduced, installation convenience is improved, and construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of pier construction technology, and in particular to the adjustable bracket and installation method for the No. 0 block of the segmental beam of a high and narrow variable cross-section pier on water. Background Technology

[0002] When constructing segmental beams at the top of the pier, it is generally necessary to install pier-side brackets to allow workers to perform construction on the brackets. Existing pier-side brackets have the following problems: 1. The side brackets of the pier generally adopt a two-sided interlocking bolt connection method, with the passageways on the left and right sides erected between the front and rear brackets. Because this part of the passageway cannot directly contact the bolts, the support conditions are insufficient, and slight swaying is likely to occur when people walk on it after installation, affecting the overall stability of the left and right passageway structure.

[0003] 2. The bracket installation work falls under the category of high-altitude construction. The working surface is located on the top of the bridge pier. Construction workers not only face a high risk of falling from height, but also need to complete the hoisting, positioning and fastening of all components in a confined space. The labor intensity is high and the safety management requirements are high.

[0004] 3. After the bracket is fully installed, its location on the top of the pier, where the top block has already been installed, results in a small effective working platform area. Construction workers need to descend further down to the lower level of the bracket to operate, but the space there is even more cramped, only allowing one person to pass at a time, which greatly increases the difficulty of construction coordination and equipment handling. Summary of the Invention

[0005] The purpose of this application is to provide an adjustable bracket and installation method for the No. 0 block of the segmental beam of the high and narrow cross-section pier on water, so as to improve the problems of insufficient support and complicated installation of the existing pier-side support.

[0006] Firstly, the adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the underwater pier provided in this application adopts the following technical solution: The adjustable bracket for the No. 0 block of the high and narrow cross-section segmental beam of the pier on water includes a steel pad box and two sets of half-width brackets. The steel pad box is installed in a groove at the top of the pier body, and the side wall of the steel pad box is inclined to fit against the side wall of the groove. The two sets of half-width brackets are installed on both sides of the pier body and are connected by a first pair of tie rods and a second pair of tie rods. The first pair of tie rods and the second pair of tie rods are set at both ends of the half-width brackets in a vertical direction, and the first pair of tie rods passes through the steel pad box.

[0007] By adopting the above technical solution, the steel pad box is used in conjunction with two sets of half-width brackets, resulting in a high degree of structural fit and stable and reliable stress distribution. At the same time, the inclined sidewalls of the steel pad box form a multi-section steel pad box design, which effectively avoids local stress concentration caused by mismatch of the installation surface. In addition, it can further cooperate with the first pair of tie rods and the second multiple tie rods to improve the overall stability of the bracket system, reduce the possibility of slippage of the half-width bracket, and form a modular design between the half-width bracket and the steel pad box, reducing high-altitude operations, improving installation convenience, and thus improving construction efficiency.

[0008] Optionally, an adjusting pad is provided between the half-width bracket and the side wall of the pier. The movable end of the adjusting pad is used to fit against the side wall of the pier and can adjust the distance between the half-width bracket and the side wall of the pier.

[0009] The above technical solution allows for easy adjustment of the distance between the half-width bracket and the side wall of the pier, ensuring that the height of the bracket system matches that of the variable cross-section pier. This effectively avoids local stress concentration caused by mismatched installation surfaces and improves the overall stability of the bracket system.

[0010] Optionally, the adjusting pad includes a base plate, a slide rail, a sliding plate, and an inclined plate. The base plate is fixedly connected to the half-width bracket, the slide rail is fixedly connected to the base plate, the sliding plate is slidably connected to the slide rail, an adjusting component for adjusting the position of the sliding plate is provided between the sliding plate and the base, the inclined plate is connected to the sliding plate, and the inclined plate is used to fit against the side wall of the pier.

[0011] The above technical solution adjusts the position of the sliding plate by adjusting the adjustment component, and the inclined plate fits against the side wall of the pier, thereby adjusting the distance between the half-width bracket and the side wall of the pier, ensuring that the height of the bracket system matches that of the variable cross-section pier.

[0012] Optionally, the adjusting component includes an adjusting screw and a guide rod. One end of the adjusting screw is rotatably connected to the slide plate, and the other end passes through the base and is threadedly connected to the base. The end of the adjusting screw passing through the base passes through the half-width bracket and is connected to a handwheel. A locking nut is threadedly connected to the adjusting screw, and the locking nut is used to abut against the half-width bracket. One end of the guide rod is connected to the slide plate, and the other end passes through the base and the half-width bracket.

[0013] With the above technical solution, when the position of the skateboard needs to be adjusted, the handwheel is turned to drive the adjusting screw to rotate. The adjusting screw drives the skateboard to the corresponding position. Then, the locking nut is turned so that the locking nut abuts against the half bracket to lock the adjusting screw, thereby reducing the possibility of the skateboard shifting.

[0014] Optionally, the inclined plate is hinged to the sliding plate, and an adjusting plate is connected to each end of the sliding plate in the vertical direction. An adjusting bolt is threaded onto each adjusting plate, and the head of the adjusting bolt abuts against the end of the inclined plate away from the pier. A tension spring is connected between the adjusting plate and the inclined plate.

[0015] Through the above technical solution, the two sets of adjusting bolts and tension springs work together to facilitate the adjustment of the tilt angle of the inclined plate, thereby making it easier to adapt to the side walls of the pier with different tilt degrees and further ensuring the overall stability of the bracket system.

[0016] Optionally, the inclined plate is provided with a rubber pad, which is used to contact the side wall of the pier.

[0017] By adopting the above technical solution, the rubber pad can effectively protect the sidewalls of the pier and reduce the possibility of damage to the sidewalls of the pier.

[0018] Secondly, this application discloses an installation method.

[0019] An installation method for installing the adjustable bracket for block 0 of the above-mentioned high and narrow cross-section segmental beam of a pier above water includes the following steps: S1. Bracket assembly: Pre-assemble half of the bracket, steel pad, tie rod and guardrail on the ground, and then remove the guardrail, steel pad and tie rod; S2. Bracket hoisting and fixing: When installing the half bracket, use a floating crane to hoist the two sets of half brackets to both sides of the pier. Then use a hand chain hoist for temporary fixing and rough adjustment. After that, install the steel pad box, tie rod and guardrail. S3. Pier top block support system setup: After the half-width bracket passes the acceptance test, temporary pads are set on the top of the steel pad box, and unloading blocks are installed on the four corner supports of the half-width bracket to form the support system for the pier top block.

[0020] By adopting the above technical solution, the bracket system is first pre-assembled to ensure that the bracket system can be quickly assembled at high altitude. Then, the position of half of the bracket is fine-tuned using a hand-operated hoist. After the fine-tuning is completed, the bracket is installed to ensure installation accuracy. This ensures the overall reliability and installation accuracy of the pier top block support system, and also ensures the safety and installation accuracy of the pier top block installation.

[0021] Optionally, when installing the steel pad box and tie rods, place the steel pad box in the groove at the top of the pier body, fine-tune the relative position of the steel pad box and the two sets of half brackets, and after the position is calibrated, insert the first pair of tie rods. The first pair of tie rods pass through the front half bracket, the steel pad box and the rear half bracket in sequence, and are locked with double nuts. After the half brackets are finally tightened, release the temporary fixation of the hand chain hoist.

[0022] Optionally, step S2 may also include the following steps: adjusting the distance between the bottom of the half-width bracket and the side wall of the pier and the angle of the half-width bracket by adjusting the shims; after adjustment, inserting the second pair of tie rods; the second pair of tie rods pass through the two sets of half-width brackets and are locked by double nuts.

[0023] By adopting the above technical solution, the position of the half-width bracket can be precisely adjusted by using the adjusting shims, and then the bottom of the half-width bracket can be stably fixed by the adjusting shims in conjunction with the second pair of tie rods.

[0024] Optionally, step S2 may also include the following steps: after the half-width bracket is installed as a whole, the guardrail is hoisted so that the guardrail is aligned with the holes of the half-width bracket and temporarily fixed between each pair of guardrails.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The steel pad box is used in conjunction with two sets of half-width brackets, which has a high degree of structural fit and stable and reliable stress. At the same time, the inclined side wall of the steel pad box forms a multi-section steel pad box design, which effectively avoids local stress concentration caused by mismatch of the installation surface. In addition, it can be further coordinated with the first pair of tie rods and the second multi-tire rod to improve the overall stability of the bracket system and reduce the possibility of slippage of the half-width bracket. Furthermore, the half-width bracket and the steel pad box form a modular design, which reduces high-altitude work, improves the convenience of installation, and thus improves construction efficiency. 2. This application adopts a modular quick-disassembly design, which significantly improves turnover rate and economic benefits. All core components of the system (such as steel pad boxes and guardrails) adopt bolt connections and modular design, realizing rapid installation and disassembly and efficient turnover. This "non-permanent fixing" mode greatly reduces the working hours and labor input of a single installation, directly improving construction efficiency. At the same time, the standardization and high reusability of components effectively reduce material loss caused by traditional welding or cutting and the use of additional components (such as pads), reducing the amortization of materials on temporary support measures in the project, thereby directly reducing construction costs. 3. The integrated quick-release guardrail provides timely safety protection, avoiding the trouble and risks of adding extra guardrails later. The design of the adjustment pad and unloading block avoids damage to the pier concrete caused by forcibly inserting or cutting components, eliminating potential structural safety hazards. In terms of environmental protection, the reusability of the system greatly reduces the large amount of construction waste generated by traditional temporary supports, which is in line with the principle of green construction. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the adjustable bracket of block 0 of the high and narrow cross-section pier segment beam in this invention.

[0027] Figure 2This is a cross-sectional schematic diagram illustrating the adjustable bracket of block 0 of the high and narrow cross-section segmental beam of the pier in this invention.

[0028] Figure 3 This is a partial cross-sectional schematic diagram illustrating the adjusting pad in this invention.

[0029] Figure 4 This is a partial structural diagram illustrating the slide rail in this invention.

[0030] In the diagram: 1. Pier body; 11. Groove; 2. Steel pad box; 3. Half-width bracket; 4. First pair of tie rods; 5. Second pair of tie rods; 6. Adjusting pad; 61. Base plate; 62. Slide rail; 63. Slide plate; 631. Adjusting plate; 632. Adjusting bolt; 633. Tension spring; 64. Inclined plate; 65. Adjusting component; 651. Adjusting screw; 652. Guide rod; 653. Locking nut; 654. Handwheel; 66. Rubber pad; 7. Guardrail. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Example 1 Firstly, this application discloses an adjustable bracket for block 0 of the segmental beam of a high and narrow variable cross-section pier on water.

[0034] Adjustable bracket for segmental beam No. 0 of the high and narrow cross-section pier in water, refer to Figures 1 to 4 The system includes a steel pad box 2 and two sets of half-width brackets 3. The steel pad box 2 is installed in a groove 11 at the top of the pier body 1, with its side walls inclined to fit against the side walls of the groove 11. The two sets of half-width brackets 3 are installed on both sides of the pier body 1 and connected by a first pair of tie rods 4 and a second pair of tie rods 5. The first pair of tie rods 4 and the second pair of tie rods 5 are vertically positioned at both ends of the half-width brackets 3, with the first pair of tie rods 4 passing through the steel pad box 2. The combination of the steel pad box 2 and the two sets of half-width brackets 3 results in a high degree of structural fit and stable and reliable stress distribution. The inclined side walls of the steel pad box 2 form a multi-section design, effectively avoiding localized stress concentration caused by mismatched installation surfaces. Furthermore, it can further cooperate with the first pair of tie rods 4 and the second pair of tie rods to improve the overall stability of the bracket system, reduce the possibility of slippage of the half-width brackets 3, and the modular design of the half-width brackets 3 and the steel pad box 2 reduces high-altitude work, improves installation convenience, and thus increases construction efficiency.

[0035] Specifically, an adjusting shim 6 is provided between the half-width bracket 3 and the side wall of the pier body 1. The movable end of the adjusting shim 6 is used to fit against the side wall of the pier body 1 and can adjust the distance between the half-width bracket 3 and the side wall of the pier body 1. The adjusting shim 6 facilitates the adjustment of the distance between the half-width bracket 3 and the side wall of the pier body 1, ensuring that the height of the bracket system matches the variable cross-section pier body 1, effectively avoiding local stress concentration caused by mismatch of the installation surface, and improving the overall stability of the bracket system.

[0036] More specifically, the adjusting pad 6 includes a base plate 61, a slide rail 62, a sliding plate 63, and an inclined plate 64. The base plate 61 is fixedly connected to the half-width bracket 3, the slide rail 62 is fixedly connected to the base plate 61, the sliding plate 63 is slidably connected to the slide rail 62, and an adjusting member 65 for adjusting the position of the sliding plate 63 is provided between the sliding plate 63 and the base. The inclined plate 64 is connected to the sliding plate 63 and is used to fit against the side wall of the pier body 1. By adjusting the position of the sliding plate 63 through the adjusting member 65 and by fitting the inclined plate 64 against the side wall of the pier body 1, the distance between the half-width bracket 3 and the side wall of the pier body 1 is adjusted, ensuring that the height of the bracket system matches that of the variable cross-section pier body 1. Both the upper and lower ends of the sliding plate 63 are T-shaped, and the slide rail 62 has a T-shaped groove that mates with the sliding plate 63 to achieve precise matching between the slide rail 62 and the sliding plate 63.

[0037] The adjusting component 65 includes an adjusting screw 651 and a guide rod 652. One end of the adjusting screw 651 is rotatably connected to the slide plate 63, and the other end passes through the base and is threadedly connected to the base. The end of the adjusting screw 651 passing through the base passes through the half-width bracket 3 and is connected to a handwheel 654. A locking nut 653 is threadedly connected to the adjusting screw 651, and the locking nut 653 is used to abut against the half-width bracket 3. One end of the guide rod 652 is connected to the slide plate 63, and the other end passes through the base and the half-width bracket 3. When the position of the slide plate 63 needs to be adjusted, the handwheel 654 is turned to drive the adjusting screw 651 to rotate, and the adjusting screw 651 moves the slide plate 63 to the corresponding position. Then, the locking nut 653 is turned so that the locking nut 653 abuts against the half-width bracket 3 to lock the adjusting screw 651, thereby reducing the possibility of the slide plate 63 shifting. In this embodiment, there are two sets of locking nuts 653 to ensure reliable locking of the adjusting screw 651. A level or tilt sensor can be installed on the half-width bracket 3 to enable precise adjustment of the angle of the half-width bracket 3.

[0038] It should be noted that the inclined plate 64 is hinged to the sliding plate 63. An adjusting plate 631 is connected to each end of the sliding plate 63 in the vertical direction. Each adjusting plate 631 is threaded with an adjusting bolt 632. The head of the adjusting bolt 632 abuts against the end of the inclined plate 64 away from the pier body 1. A tension spring 633 connects the adjusting plate 631 and the inclined plate 64. The two sets of adjusting bolts 632 and tension springs 633 cooperate to facilitate adjustment of the tilt angle of the inclined plate 64, thereby adapting to different degrees of inclination of the pier body 1 sidewalls and further ensuring the overall stability of the bracket system.

[0039] In addition, a rubber pad 66 is provided on the inclined plate 64, which is used to contact the side wall of the pier body 1. The rubber pad 66 facilitates the protection of the side wall of the pier body 1 and reduces the possibility of damage to the side wall of the pier body 1.

[0040] Secondly, this application discloses an installation method.

[0041] An installation method for installing the adjustable bracket for block 0 of the above-mentioned high and narrow cross-section pier segment beam, comprising the following steps: S1. Bracket assembly: On the ground, pre-assemble half of the bracket 3, steel pad box 2, tie rod and guardrail 7, and then remove guardrail 7, steel pad box 2 and tie rod; S2. Bracket hoisting and fixing: When installing the half-bracket 3, a floating crane is used to hoist the two sets of half-bracket 3 to both sides of the pier body 1. Then, a hand-operated hoist is used for temporary fixing and rough adjustment. Then, the steel pad box 2, tie rods and guardrail 7 are installed. When installing the steel pad box 2 and tie rods, the steel pad box 2 is placed in the groove 11 at the top of the pier body 1. The relative position of the steel pad box 2 and the two sets of half-bracket 3 is finely adjusted. After the position is calibrated, the first pair of tie rods 4 is inserted first. The first pair of tie rods 4 passes through the front half-bracket 3, the steel pad box 2 and the rear half-bracket 3 in sequence. The first pair of tie rods 4 is locked with double nuts. After the half-bracket 3 is finally tightened and fixed, the temporary fixing of the hand-operated hoist is released. Adjust the distance between the bottom of the half-bracket 3 and the side wall of the pier body 1, as well as the angle of the half-bracket 3, by adjusting the shims 6. After adjustment, insert the second pair of tie rods 5, which pass through the two sets of half-brackets 3 and are locked with double nuts. The shims 6 are used to precisely adjust the position of the half-bracket 3. Then, the shims 6 and the second pair of tie rods 5 are used to stably fix the bottom of the half-bracket 3. After the half-bracket 3 is fully installed, hoist the guardrail 7, aligning it with the holes in the half-bracket 3, and temporarily fix each pair of guardrail 7 together. The guardrail 7 has two layers for easy operation.

[0042] S3. Pier top block support system setup: After the half-width bracket 3 passes the acceptance test, temporary pads are set on the top of the steel pad box 2, and unloading blocks are installed on the four corner supports of the half-width bracket 3 to form the pier top block support system.

[0043] The bracket system is pre-assembled to ensure that it can be quickly assembled at high altitude. Then, the position of half bracket 3 is fine-tuned using a hand-operated hoist. After the fine-tuning is completed, it is installed to ensure installation accuracy, thereby ensuring the overall reliability and installation accuracy of the pier top block support system, and ensuring the safety and installation accuracy of the pier top block installation.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable bracket for the No. 0 block of a high and narrow variable cross-section segmental beam pier on water, characterized in that, The device includes a steel pad box (2) and two sets of half-width brackets (3). The steel pad box (2) is installed in the groove (11) at the top of the pier body (1). The side wall of the steel pad box (2) is inclined to fit against the side wall of the groove (11). The two sets of half-width brackets (3) are installed on both sides of the pier body (1). The two sets of half-width brackets (3) are connected by a first pair of tie rods (4) and a second pair of tie rods (5). The first pair of tie rods (4) and the second pair of tie rods (5) are set at both ends of the half-width brackets (3) in a vertical direction. The first pair of tie rods (4) passes through the steel pad box (2).

2. The adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the pier above water as described in claim 1, characterized in that: An adjusting pad (6) is provided between the half-width bracket (3) and the side wall of the pier body (1). The movable end of the adjusting pad (6) is used to fit against the side wall of the pier body (1) and can adjust the distance between the half-width bracket (3) and the side wall of the pier body (1).

3. The adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the pier above water according to claim 2, characterized in that: The adjusting pad (6) includes a base plate (61), a slide rail (62), a sliding plate (63), and an inclined plate (64). The base plate (61) is fixedly connected to the half-width bracket (3). The slide rail (62) is fixedly connected to the base plate (61). The sliding plate (63) is slidably connected to the slide rail (62). An adjusting member (65) for adjusting the position of the sliding plate (63) is provided between the sliding plate (63) and the base. The inclined plate (64) is connected to the sliding plate (63) and is used to fit against the side wall of the pier body (1).

4. The adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the pier above water as described in claim 3, characterized in that: The adjusting component (65) includes an adjusting screw (651) and a guide rod (652). One end of the adjusting screw (651) is rotatably connected to the slide plate (63), and the other end passes through the base and is threadedly connected to the base. The end of the adjusting screw (651) that passes through the base passes through the half-width bracket (3) and is connected to a handwheel (654). A locking nut (653) is threadedly connected to the adjusting screw (651). The locking nut (653) is used to abut against the half-width bracket (3). One end of the guide rod (652) is connected to the slide plate (63), and the other end passes through the base and the half-width bracket (3).

5. The adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the pier above water according to claim 4, characterized in that: The inclined plate (64) is hinged to the sliding plate (63). The two ends of the sliding plate (63) in the vertical direction are respectively connected to an adjusting plate (631). Each adjusting plate (631) is threaded with an adjusting bolt (632). The head of the adjusting bolt (632) abuts against the end of the inclined plate (64) away from the pier (1). A tension spring (633) is connected between the adjusting plate (631) and the inclined plate (64).

6. The adjustable bracket for block 0 of the high and narrow cross-section segmental beam of the pier on water as described in claim 5, characterized in that: The inclined plate (64) is provided with a rubber pad (66), which is used to contact the side wall of the pier body (1).

7. An installation method for installing the adjustable bracket for block 0 of the high-narrow variable cross-section pier segmental beam as described in any one of claims 2-6, characterized in that: Includes the following steps: S1. Bracket assembly: On the ground, half of the bracket (3), steel pad box (2), tie rod and guardrail (7) are pre-assembled, and then the guardrail (7), steel pad box (2) and tie rod are removed; S2. Bracket hoisting and fixing: When installing the half bracket (3), use a floating crane to hoist the two sets of half brackets (3) to both sides of the pier (1), and then use a hand hoist for temporary fixing and rough adjustment. Then install the steel pad box (2), tie rod and guardrail (7). S3. Pier top block support system setup: After the half-width bracket (3) passes the acceptance test, temporary pads are set on the top of the steel pad box (2), and unloading blocks are installed on the four corner supports of the half-width bracket (3) to form the pier top block support system.

8. The installation method according to claim 7, characterized in that: Step S2 also includes the following steps: When installing the steel pad box (2) and the tie rod, place the steel pad box (2) in the groove (11) at the top of the pier body (1), finely adjust the relative position of the steel pad box (2) and the two sets of half brackets (3), after the position is calibrated, insert the first pair of tie rods (4), the first pair of tie rods (4) pass through the front half bracket (3), the steel pad box (2) and the rear half bracket (3) in sequence, and lock the first pair of tie rods (4) with double nuts. After the half bracket (3) is finally tightened, release the temporary fixation of the hand chain hoist.

9. The installation method according to claim 8, characterized in that: Step S2 also includes the following steps: adjusting the distance between the bottom of the half bracket (3) and the side wall of the pier body (1) and the angle of the half bracket (3) by adjusting the pad (6). After the adjustment is completed, insert the second pair of tie rods (5). The second pair of tie rods (5) passes through the two sets of half brackets (3) and is locked by double nuts.

10. The installation method according to claim 9, characterized in that: Step S2 also includes the following steps: after the half bracket (3) is installed as a whole, the guardrail (7) is hoisted so that the guardrail (7) is aligned with the hole of the half bracket (3) and the guardrails (7) are temporarily fixed in pairs.

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