Positioning device and construction method for pre-embedded steel plates for sound barrier fixing

Abstract

This application discloses a positioning device and construction method for pre-embedded steel plates used in the fixing of sound barriers. The positioning device for pre-embedded steel plates includes a support rod and an adjusting frame. The support rod is connected to pre-embedded parts on the highway, and an installation steel plate is fitted onto the support rod. The adjusting frame is placed on the side formwork and has at least three sets of height adjusting components. The movable end of each set of height adjusting components is connected to the installation steel plate. The support rod has a limiting component, which is used to lock the position of the installation steel plate after the height adjusting components have adjusted the position of the installation steel plate. The support rod facilitates the determination of the position of the installation steel plate on the horizontal plane. Subsequently, the height position and levelness of the installation steel plate are adjusted by the height adjusting components. Finally, the limiting component locks the installation steel plate onto the support rod, reducing the possibility of displacement of the installation steel plate position due to subsequent pouring construction, thereby maximizing the positional and horizontal accuracy of the installation steel plate.

Description

Technical Field

[0001] This application relates to the field of sound barrier construction technology, and in particular to a positioning device and construction method for pre-embedded steel plates used for fixing sound barriers. Background Technology

[0002] A sound barrier is an acoustic barrier specifically designed to be placed between a noise source and a receiving point. It is typically designed for a specific noise source and a specific protected location (or area).

[0003] When constructing sound barriers along highways, the crash barrier is usually constructed first. During the construction of the crash barrier, steel plates are pre-embedded on the top surface of the crash barrier. After the crash barrier has solidified, the sound barrier is installed on the steel plates.

[0004] Due to unavoidable errors during production and construction, the positional and horizontal accuracy of installed steel plates is often difficult to guarantee, especially the horizontal accuracy. Therefore, a positioning device for concealed steel plates is proposed to ensure the positional and horizontal accuracy of the installed steel plates. Summary of the Invention

[0005] The purpose of this application is to provide a positioning device and construction method for pre-embedded steel plates used for fixing sound barriers, so as to improve the problem of insufficient positional and horizontal accuracy of existing installation steel plates.

[0006] Firstly, the positioning device for fixing the pre-embedded steel plate of the sound barrier provided in this application adopts the following technical solution: A positioning device for a pre-embedded steel plate used to fix a sound barrier includes a support rod and an adjusting frame. The support rod is connected to a pre-embedded part on the highway. An installation steel plate is fitted onto the support rod. The adjusting frame is placed on a side mold. The adjusting frame is provided with at least three sets of height adjusting components. The movable end of each set of height adjusting components is connected to the installation steel plate. A limiting component is provided on the support rod. The limiting component is used to lock the position of the installation steel plate after the height adjusting component has adjusted the position of the installation steel plate.

[0007] By adopting the above technical solution, the support rod facilitates the determination of the position of the installation steel plate on the horizontal plane. Then, the height position and levelness of the installation steel plate are adjusted by the height adjustment component. Finally, the installation steel plate is locked on the support rod by the limiting component, which reduces the possibility of the installation steel plate shifting due to subsequent pouring construction, thereby maximizing the positional and level accuracy of the installation steel plate.

[0008] Optionally, the height adjustment component includes an adjustment screw, a first fixing nut, and a first adjusting nut. The adjustment screw is threadedly connected to the adjustment frame. The first fixing nut and the first adjusting nut are both threadedly connected to the adjustment screw. The bottom surface of the first fixing nut abuts against the top surface of the adjustment frame, and the top surface of the first adjusting nut abuts against the bottom surface of the mounting steel plate.

[0009] The above technical solution involves using a first adjusting nut to hold the mounting steel plate in place, then adjusting the height and level of the mounting steel plate via the threaded connection between the adjusting screw and the adjusting frame, and finally locking the adjusting screw with a first fixing nut to reduce the possibility of the adjusting screw rotating and affecting the accuracy of the mounting steel plate.

[0010] Optionally, the limiting component includes a second fixing nut and a second adjusting nut, wherein the ground surface of the second fixing nut abuts against the top surface of the mounting steel plate, and the top surface of the second adjusting nut abuts against the bottom surface of the mounting steel plate.

[0011] Through the above technical solution, the second fixing nut cooperates with the second adjusting nut to lock the mounting steel plate, reducing the possibility of the mounting steel plate shifting position after adjustment.

[0012] Optionally, a narrow space adjustment assembly is also included. The narrow space adjustment assembly includes an active component and a driven component. The active component is connected to the driven component. A narrow space is formed between the mounting steel plate and the reinforcing cage inside the side formwork. The second adjusting nut is located inside the narrow space. The active component is located outside the narrow space. The driven component is located inside the narrow space and is connected to the second adjusting nut. The active component can drive the driven component to rotate, thereby driving the second adjusting nut to rotate.

[0013] Through the above technical solution, the cooperation between the driving and driven components allows the operator to drive the second adjusting nut to rotate in a relatively open position, thereby improving the convenience of rotating the second adjusting nut.

[0014] Optionally, the driving component includes a tool nut and a insertion rod, the driven component includes a support plate, the support plate is sleeved on the top of the second adjusting nut, and the inner wall of the support plate fits snugly with the outer shape of the second adjusting nut, the insertion rod is connected to the tool nut, the mounting steel plate is provided with a mounting hole for the support rod to pass through, a mounting gap is formed between the side wall of the mounting hole and the support rod, the top surface of the support plate is provided with a insertion hole for the insertion rod to be inserted, the bottom of the insertion rod passes through the mounting gap and is inserted into the insertion hole, and at least two insertion rods are provided.

[0015] By rotating the tool nut, the tool nut drives the support plate to rotate via the insert rod, which in turn drives the second adjusting nut to rotate, so that the top surface of the support plate can abut against the bottom surface of the mounting steel plate.

[0016] Optionally, the reinforcing cage includes transverse bars and longitudinal bars, the longitudinal bars are inverted U-shaped bars, the transverse bars are straight bars, the transverse bars and longitudinal bars are tied together with steel wire, and the support rod is fixedly connected to the reinforcing cage.

[0017] By adopting the above technical solution, the support rod is connected to the steel cage, which can further ensure the stability of the installed steel plate.

[0018] Optionally, a reinforcing member is connected to the middle of the adjustment frame.

[0019] By adopting the above technical solution, the reinforcing component can enhance the overall strength of the adjustment frame and ensure the adjustment accuracy of the mounting steel plate.

[0020] Optionally, the adjustment frame is provided with two handles.

[0021] The above technical solution makes it easier for operators to pick up and adjust the frame.

[0022] Secondly, this application provides a construction method.

[0023] A construction method, based on the aforementioned positioning device for the pre-embedded steel plate used to fix the sound barrier, further includes the following steps: S1. Tie the steel cage on the highway surface, and fix the support rod to the embedded parts on the highway surface. Build side formwork on both sides of the steel cage. S2. Invert the adjustment frame so that the first fixing nut faces the ground, place the mounting steel plate on the adjustment frame, and then screw the first adjusting nut onto the adjusting screw. S3. Place the adjusting frame on the side mold so that the mounting steel plate is located inside the side mold and the mounting steel plate is fitted onto the support rod; S4. Adjust the height and level of the mounting steel plate by rotating the adjusting screw. After reaching the design standard, rotate the first fixing nut until the first fixing nut is pressed against the adjusting frame to lock the adjusting nut. S5. Rotate the tool nut to drive the second adjusting nut to rotate, so that the support plate abuts against the bottom surface of the embedded steel plate. Then remove the tool nut and the insert rod, and screw the second fixing nut onto the support rod until the second fixing nut abuts against the installation steel plate. S6. Separate the first adjusting nut from the adjusting screw, remove the adjusting frame, and then pour concrete into the side formwork to form a crash barrier. S7. After the crash barrier has fully hardened, remove the side formwork and install the sound barrier on the steel plate.

[0024] Optionally, in step S5, before installing the second fixing nut, a pad is fitted onto the support rod. The pad includes a pad portion and a sleeve portion. The sleeve portion is inserted into the installation gap. The bottom surface of the pad portion contacts the top surface of the mounting steel plate, and the top surface of the pad portion is used to contact the bottom surface of the second fixing nut.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The support rod facilitates the determination of the position of the installation steel plate on the horizontal plane. Then, the height and level of the installation steel plate are adjusted by the height adjustment component. Finally, the installation steel plate is locked to the support rod by the limiting component, which reduces the possibility of the installation steel plate shifting due to subsequent pouring construction, thereby maximizing the positional and horizontal accuracy of the installation steel plate. 2. The first adjusting nut holds the mounting steel plate against the wall, and then the height and level of the mounting steel plate are adjusted by the threaded connection between the adjusting screw and the adjusting frame. Finally, the first fixing nut locks the adjusting screw to reduce the possibility of the adjusting screw rotating and affecting the accuracy of the mounting steel plate. 3. Rotate the tool nut. The tool nut drives the support plate to rotate through the insert rod, which in turn drives the second adjusting nut to rotate, so that the top surface of the support plate can abut against the bottom surface of the mounting steel plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall positioning device for fixing the pre-embedded steel plate of the sound barrier in this invention.

[0027] Figure 2 This is a schematic diagram illustrating the structure of the adjustment frame in this invention.

[0028] Figure 3 This is a side view schematic diagram illustrating the height adjustment component in this invention.

[0029] Figure 4 This is a cross-sectional structural diagram illustrating the tool nut in this invention.

[0030] Figure 5 yes Figure 4 A magnified view of part A in the middle.

[0031] Figure 6 This is a partial schematic diagram illustrating the gasket in this invention.

[0032] In the diagram, 1. Support rod; 2. Mounting steel plate; 3. Side formwork; 4. Height adjustment component; 41. Adjusting screw; 42. First fixing nut; 43. First adjusting nut; 5. Limiting component; 51. Second fixing nut; 52. Second adjusting nut; 6. Tool nut; 61. Insert rod; 62. Support plate; 621. Insertion hole; 63. Screw; 64. Washer; 641. Pad; 642. Sleeve; 7. Reinforcing cage; 71. Horizontal reinforcement; 72. Longitudinal reinforcement; 8. Reinforcing component; 81. Handle; 9. Adjusting frame. Detailed Implementation

[0033] 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.

[0034] 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. Example 1

[0035] Firstly, this application discloses a positioning device for pre-embedded steel plates used to fix sound barriers.

[0036] The positioning device for the pre-embedded steel plate used to fix the sound barrier shall refer to... Figures 1 to 6It includes a support rod 1 and an adjusting frame 9. The support rod 1 is connected to the embedded parts on the highway. The support rod 1 is fitted with an installation steel plate 2. The adjusting frame 9 is placed on the side mold 3. The adjusting frame 9 is provided with at least three sets of height adjusting parts 4. The movable end of each set of height adjusting parts 4 is connected to the installation steel plate 2. The support rod 1 is provided with a limiting part 5. The limiting part 5 is used to lock the position of the installation steel plate 2 after the height adjusting parts 4 have adjusted the position of the installation steel plate 2.

[0037] During construction, the support rod 1 facilitates the determination of the position of the installation steel plate 2 on the horizontal plane. Then, the height adjustment component 4 is used to adjust the height and level of the installation steel plate 2. Finally, the limiting component 5 is used to lock the installation steel plate 2 onto the support rod 1, reducing the possibility of the installation steel plate 2 shifting position due to subsequent pouring construction, thereby maximizing the positional and horizontal accuracy of the installation steel plate 2.

[0038] Specifically, the height adjustment component 4 includes an adjusting screw 41, a first fixing nut 42, and a first adjusting nut 43. The adjusting screw 41 is threadedly connected to the adjusting frame 9. Both the first fixing nut 42 and the first adjusting nut 43 are threadedly connected to the adjusting screw 41. The bottom surface of the first fixing nut 42 abuts against the top surface of the adjusting frame 9, and the top surface of the first adjusting nut 43 abuts against the bottom surface of the mounting steel plate 2. By using the first adjusting nut 43 to hold the mounting steel plate 2 in place, the height and level of the mounting steel plate 2 are adjusted by the threaded connection between the adjusting screw 41 and the adjusting frame 9. Finally, the first fixing nut 42 locks the adjusting screw 41, reducing the possibility of the adjusting screw 41 rotating and affecting the accuracy of the mounting steel plate 2.

[0039] The limiting component 5 includes a second fixing nut 51 and a second adjusting nut 52. The ground surface of the second fixing nut 51 abuts against the top surface of the mounting steel plate 2, and the top surface of the second adjusting nut 52 abuts against the bottom surface of the mounting steel plate 2. The second fixing nut 51 and the second adjusting nut 52 cooperate to lock the mounting steel plate 2, reducing the possibility of the mounting steel plate 2 shifting position after adjustment.

[0040] In addition, the positioning device for the pre-embedded steel plate used to fix the sound barrier also includes a narrow space adjustment component. This component comprises an active member and a passive member, connected together. A narrow space is formed between the mounting steel plate 2 and the reinforcing cage 7 within the side formwork 3. The second adjusting nut 52 is located within this narrow space, the active member is located outside, and the passive member is located within and connected to the second adjusting nut 52. The active member can drive the passive member to rotate, thereby driving the second adjusting nut 52 to rotate. The cooperation between the active and passive members allows the operator to drive the second adjusting nut 52 to rotate in a relatively open position, improving the ease of rotation of the second adjusting nut 52.

[0041] Specifically, the driving component includes a tool nut 6 and a insertion rod 61, and the driven component includes a support plate 62. The support plate 62 is fitted onto the top of the second adjusting nut 52, and the inner wall of the support plate 62 fits snugly against the outer shape of the second adjusting nut 52. The insertion rod 61 is connected to the tool nut 6. The mounting steel plate 2 has a mounting hole for the support rod 1 to pass through, and a mounting gap is formed between the side wall of the mounting hole and the support rod 1. The top surface of the support plate 62 has an insertion hole 621 for the insertion rod 61 to be inserted. The bottom of the insertion rod 61 passes through the mounting gap and is inserted into the insertion hole 621. There are at least two insertion rods 61. When it is necessary to rotate the second adjusting nut 52, the tool nut 6 is rotated. The tool nut 6 drives the support plate 62 to rotate through the insertion rod 61, thereby driving the second adjusting nut 52 to rotate, so that the top surface of the support plate 62 can abut against the bottom surface of the mounting steel plate 2. To facilitate adjustment of the length of the insertion rod 61, the insertion rod 61 is slidably connected to the tool nut 6. The tool nut 6 has a countersunk hole on its side wall, and a screw 63 is threaded into the countersunk hole. The insertion rod 61 can be easily locked by the screw 63.

[0042] It should be noted that the second adjusting nut 52 cannot be directly used to adjust the height of the mounting steel plate 2. Firstly, it is inconvenient to operate, and secondly, turning the second adjusting nut 52 requires a large torque and may cause jamming. Therefore, the height adjustment component 4 also uses the adjusting screw 41 for adjustment, rather than directly using the first adjusting nut 43 for adjustment.

[0043] In addition, the reinforcing cage 7 includes horizontal bars 71 and longitudinal bars 72. The longitudinal bars 72 are inverted U-shaped bars, and the horizontal bars 71 are straight bars. The horizontal bars 71 and the longitudinal bars 72 are connected by steel wire binding. The support rod 1 is connected to the horizontal bars 71 and the longitudinal bars 72 of the reinforcing cage 7 by welding steel bars. The connection between the support rod 1 and the reinforcing cage 7 can further ensure the stability of the installed steel plate 2.

[0044] A reinforcing member 8, which can be a reinforcing steel bar, is connected to the middle of the adjusting frame 9. The reinforcing member 8 strengthens the overall strength of the adjusting frame 9, ensuring the adjustment accuracy of the mounting steel plate 2. Two handles 81 are provided on the adjusting frame 9. The handles 81 facilitate the operator's handling of the adjusting frame 9.

[0045] Secondly, this application provides a construction method.

[0046] A construction method, based on the aforementioned positioning device for the pre-embedded steel plate used to fix the sound barrier, further includes the following steps: S1. Tie the steel cage 7 on the highway surface, and fix the support rod 1 to the embedded parts on the highway surface. Build side formwork 3 on both sides of the steel cage 7. S2. Invert the adjusting frame 9 so that the first fixing nut 42 faces the ground, place the mounting steel plate 2 on the adjusting frame 9, and then screw the first adjusting nut 43 onto the adjusting screw 41. S3. Place the adjusting frame 9 on the side mold 3 so that the mounting steel plate 2 is located inside the side mold 3 and the mounting steel plate 2 is fitted onto the support rod 1.

[0047] S4. Adjust the height and level of the mounting steel plate 2 by rotating the adjusting screw 41. After reaching the design standard, rotate the first fixing nut 42 until it abuts against the adjusting frame 9 to lock the adjusting nut. When adjusting the level of the mounting steel plate 2, place a level on the mounting steel plate 2.

[0048] S5. Rotate the tool nut 6 to drive the second adjusting nut 52 to rotate, so that the support plate 62 abuts against the bottom surface of the embedded steel plate. Then remove the tool nut 6 and the insertion rod 61, and put the washer 64 on the support rod 1. The washer 64 includes a pad portion 641 and a sleeve portion 642. The sleeve portion 642 is inserted into the installation gap. The bottom surface of the pad portion 641 contacts the top surface of the mounting steel plate 2, and the top surface of the pad portion 641 is used to contact the bottom surface of the second fixing nut 51. Then screw the second fixing nut 51 onto the support rod 1 until the second fixing nut 51 and the top surface of the pad portion 641 are tightly abutted. The sleeve portion 642 of the washer 64 helps to reduce the horizontal displacement of the embedded steel plate, and the pad portion 641 can be used as a washer.

[0049] S6. Separate the first adjusting nut 43 from the adjusting screw 41, remove the adjusting frame 9, and then pour concrete into the side mold 3 to form a crash barrier.

[0050] S7. After the crash barrier has fully hardened, remove the side formwork 3 and install the sound barrier on the mounting steel plate 2. During installation, first unscrew the second fixing nut 51, remove the gasket 64, and directly put the bottom plate of the sound barrier onto the support rod 1. Then put the gasket 64 onto the support rod 1, and then lock the bottom plate of the sound barrier to the mounting steel plate 2 with the second fixing nut 51 to complete the installation of the sound barrier.

[0051] 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 included within the scope of protection of this application.

Claims

1. A positioning device for pre-embedded steel plates used to fix sound barriers, characterized in that, The system includes a support rod (1) and an adjustment frame (9). The support rod (1) is connected to the embedded parts on the highway. An installation steel plate (2) is fitted on the support rod (1). The adjustment frame (9) is placed on the side mold (3). The adjustment frame (9) is provided with at least three sets of height adjustment components (4). The movable end of each set of height adjustment components (4) is connected to the installation steel plate (2). The support rod (1) is provided with a limiting component (5). The limiting component (5) is used to lock the position of the installation steel plate (2) after the height adjustment component (4) has adjusted the position of the installation steel plate (2).

2. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 1, characterized in that: The height adjustment component (4) includes an adjustment screw (41), a first fixing nut (42), and a first adjusting nut (43). The adjustment screw (41) is threadedly connected to the adjustment frame (9). The first fixing nut (42) and the first adjusting nut (43) are both threadedly connected to the adjustment screw (41). The bottom surface of the first fixing nut (42) abuts against the top surface of the adjustment frame (9), and the top surface of the first adjusting nut (43) abuts against the bottom surface of the mounting steel plate (2).

3. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 2, characterized in that: The limiting member (5) includes a second fixing nut (51) and a second adjusting nut (52). The ground of the second fixing nut (51) abuts against the top surface of the mounting steel plate (2), and the top surface of the second adjusting nut (52) abuts against the bottom surface of the mounting steel plate (2).

4. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 3, characterized in that: It also includes a narrow space adjustment component, which includes an active component and a driven component. The active component is connected to the driven component. A narrow space is formed between the mounting steel plate (2) and the steel cage (7) in the side formwork (3). The second adjusting nut (52) is located in the narrow space. The active component is located outside the narrow space. The driven component is located inside the narrow space and is connected to the second adjusting nut (52). The active component can drive the driven component to rotate so as to drive the second adjusting nut (52) to rotate.

5. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 4, characterized in that: The driving component includes a tool nut (6) and a plug rod (61). The driven component includes a support plate (62). The support plate (62) is fitted onto the top of the second adjusting nut (52), and the inner wall of the support plate (62) fits snugly against the outer shape of the second adjusting nut (52). The plug rod (61) is connected to the tool nut (6). The mounting steel plate (2) has a mounting hole for the support rod (1) to pass through. A mounting gap is formed between the side wall of the mounting hole and the support rod (1). The top surface of the support plate (62) has a plug hole (621) for the plug rod (61) to be inserted. The bottom of the plug rod (61) passes through the mounting gap and is inserted into the plug hole (621). There are at least two plug rods (61).

6. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 5, characterized in that: The steel cage (7) includes horizontal bars (71) and vertical bars (72). The vertical bars (72) are inverted U-shaped bars, and the horizontal bars (71) are straight bars. The horizontal bars (71) and the vertical bars (72) are connected by steel wire binding. The support rod (1) is fixedly connected to the steel cage (7).

7. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 6, characterized in that: The adjustment frame (9) is connected to a reinforcing member (8) in the middle.

8. The positioning device for fixing the pre-embedded steel plate of the sound barrier according to claim 7, characterized in that: The adjustment frame (9) is provided with two handles (81).

9. A construction method, based on the positioning device for the pre-embedded steel plate for fixing the sound barrier as described in claim 5, characterized in that: It also includes the following steps: S1. Tie the steel cage (7) on the highway surface, and fix the support rod (1) to the embedded parts on the highway surface. Build side formwork (3) on both sides of the steel cage (7). S2. Invert the adjusting frame (9) so that the first fixing nut (42) faces the ground, place the mounting steel plate (2) on the adjusting frame (9), and then screw the first adjusting nut (43) onto the adjusting screw (41); S3. Place the adjusting frame (9) on the side mold (3) so that the mounting steel plate (2) is located inside the side mold (3) and the mounting steel plate (2) is fitted onto the support rod (1); S4. Adjust the height and level of the mounting steel plate (2) by rotating the adjusting screw (41). After reaching the design standard, rotate the first fixing nut (42) until the first fixing nut (42) abuts against the adjusting frame (9) to lock the adjusting nut. S5. Rotate the tool nut (6) to drive the second adjusting nut (52) to rotate, so that the support plate (62) abuts against the bottom surface of the pre-embedded steel plate. Then remove the tool nut (6) and the insert rod (61), and screw the second fixing nut (51) onto the support rod (1) until the second fixing nut (51) abuts against the installation steel plate (2). S6. Separate the first adjusting nut (43) from the adjusting screw (41), remove the adjusting frame (9), and then pour concrete into the side formwork (3) to form a crash barrier. S7. After the crash barrier has set, remove the side formwork (3) and install the sound barrier on the installation steel plate (2).

10. A construction method according to claim 9, characterized in that: In step S5, before installing the second fixing nut (51), a pad (64) is put on the support rod (1). The pad (64) includes a pad (641) and a sleeve (642). The sleeve (642) is inserted into the installation gap. The bottom surface of the pad (641) contacts the top surface of the mounting steel plate (2). The top surface of the pad (641) is used to contact the bottom surface of the second fixing nut (51).

Images