A method for installing a bridge support

Abstract

The present application relates to the technical field of bridge construction, and in particular to a method for installing a bridge support, comprising the following steps: S1, pouring a cushion stone; S11: preparing a steel cage and fixing a level adjustment member; S12: installing a cushion stone forming mold, installing an embedded tube, and pouring concrete; S2: measuring and correcting the elevation of the bottom plate; S3: adjusting the level of the bottom plate; S31: placing the bottom plate on the level adjustment member, measuring whether the level of the bottom plate meets the requirements, if so, proceed to S4, if not, proceed to S32; S32: correcting the L value of the level adjustment member, measuring whether the level of the bottom plate meets the requirements, if so, proceed to S4, if not, proceed to S32 again; S4, installing a frame template; S5, pouring mortar; S6, installing the remaining parts of the bridge support. By pre-embedding the level adjustment member in the cushion stone, the position of the level adjustment member is in a fixed state, reducing the influence of external forces on the position of the level adjustment member, improving the level of the bridge support, and enhancing the safety performance of the bridge.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a method for installing a bridge support. Background Art

[0002] Bridge bearings are important structural components used for connection and support. Bridge bearings are located between the bridge and the pad stone, transferring the load and deformation borne by the bridge superstructure to the bridge substructure, and are important force transmission devices of the bridge. Commonly used bearings in the bridge construction process include asphalt felt or flat plate bearings, spherical bearings, steel bearings and special bearings.

[0003] At present, during the construction of bridge bearings, the embedded cylinder for forming the anchor bolt hole under the bridge bearing is first embedded, and then the supporting cushion stone is poured and the anchor bolt hole under the bridge bearing is formed. After the surface of the supporting cushion stone solidifies, the elevation of the bridge bearing is measured, and short steel bars or blocks are placed on the surface of the cushion stone according to the elevation position of the bridge bearing to achieve the bottom plate support of the bridge bearing and make the bottom plate of the bridge bearing meet the horizontality requirements; a frame template is installed on the outer periphery of the cushion stone, the forming cavity height of the frame template is greater than the height of the bottom plate of the bridge bearing, and the anchor bolt under the bridge bearing is installed on the bottom plate of the bridge bearing; mortar is poured in the forming cavity of the frame template, and the mortar fills the anchor bolt hole under the bridge bearing, and the height of the mortar is 3mm-5mm higher than the bottom wall of the bottom plate of the bridge bearing. After the mortar solidifies, other components of the bridge bearing are installed.

[0004] Regarding the above-mentioned related technologies, the applicant believes that supporting the bottom plate of the bridge bearing by padding short steel bars or blocks will easily exert force on the steel bars or blocks during the pouring of mortar, causing the position of the steel bars or blocks to shift, thereby changing the levelness of the bottom plate of the bridge bearing and affecting the levelness of the bridge bearing. Summary of the invention

[0005] In order to improve the horizontality of the bridge bearing, the present application provides a bridge bearing installation method.

[0006] A bridge bearing installation method comprises the following steps:

[0007] S1. Casting pad stone:

[0008] S11: prepare a steel cage, fix the embedded steel plate on the upper surface of the steel cage, and fix at least three level adjustment members on the upper surface of the embedded steel plate;

[0009] S12: installing a pad stone forming mold close to the upper surface, then installing embedded cylinders at four corners in the pad stone forming mold, and pouring concrete into the pad stone forming mold;

[0010] Each embedded tube has a cavity reserved inside for burying anchor bolts under the bridge support;

[0011] The height L of each level adjustment piece protruding from the upper surface of the pad stone must be greater than the required elevation H of the bridge support;

[0012] S2: Measurement and correction of base plate elevation;

[0013] S3: Adjust the levelness of the base plate:

[0014] S31: placing the base plate on at least three level adjustment members, and measuring whether the levelness of the base plate meets the design requirements. If yes, proceed to S4; otherwise, proceed to S32;

[0015] S32: Correct the L value of at least one of the level adjustment members, and measure again whether the levelness of the base plate meets the design requirements. If yes, proceed to S4; if not, proceed to S32 again;

[0016] S4. Install the frame template;

[0017] S5, pouring mortar;

[0018] S6. Install the remaining components of the bridge support.

[0019] By adopting the above technical scheme, when installing the bridge bearing, first weave a steel cage and install it on the bridge substructure, then fix the embedded steel plate on the upper surface of the steel cage, and fix at least three level adjustment pieces on the upper surface of the embedded steel plate, and install the embedded tube on the surface of the embedded steel plate according to the installation position of the anchor bolt under the bridge bearing, so that the anchor bolt under the bridge bearing can extend into the cavity of the embedded tube during the subsequent construction process, and the top wall of the embedded tube is higher than the design height of the cushion stone; install the cushion stone forming mold on the bridge substructure, so that the molding cavity height of the cushion stone forming mold is lower than the top wall of the embedded tube, and then pour concrete into the molding cavity of the cushion stone forming mold, so that the concrete surface meets the height design requirement of the cushion stone; after the cushion stone is formed, the height of the level adjustment piece protruding from the cushion stone is corrected according to the elevation of the bridge bearing; after the correction is completed, The base plate is placed on the level adjustment parts, and the levelness of the base plate is measured to see if it meets the design requirements. If so, the frame formwork is installed; if not, the L value of at least one of the level adjustment parts is corrected, and the levelness of the base plate is measured again to see if it meets the design requirements. The level adjustment parts are adjusted repeatedly until the levelness of the base plate meets the design requirements, and then the frame formwork is installed, and the anchor bolts under the bridge bearing are installed; then mortar is poured into the inner cavity of the frame formwork, and after the mortar hardens, the remaining components of the bridge bearing are installed; through the construction method of the bridge bearing, the level adjustment parts are embedded in the cushion stone, so that the position of the level adjustment parts is fixed, reducing the influence of external forces on the position of the level adjustment parts, thereby reducing the influence of external forces on the position of the base plate of the bridge bearing, improving the levelness of the bridge bearing, and enhancing the safety performance of the bridge.

[0020] Optionally, the levelness adjusting member is a first steel bar having a diameter of 18 mm-24 mm.

[0021] By adopting the above technical solution, the levelness adjusting member is set as the first steel bar with a diameter of 18mm-24mm, which is convenient for ensuring the supporting strength during the installation of the base plate.

[0022] Optionally, in S2, the first steel bar is first cut, and the height of the first steel bar protruding from the upper surface of the cushion stone after cutting is D, and the height difference D of each first steel bar protruding from the upper surface of the cushion stone is greater than the required elevation H of the bridge support by 1mm-2mm;

[0023] Then grind the upper surface of the first steel bar.

[0024] By adopting the above technical scheme, in the process of measuring and correcting the bottom plate elevation, the height of the first steel bar protruding from the upper surface of the pad stone is first measured. If the height of the first steel bar protruding from the upper surface of the pad stone is greater than 2 mm of the required elevation of the bridge bearing, the first steel bar is first cut by a cutting machine, and then the top wall of the first steel bar is grinded by a grinding wheel until it meets the bottom plate elevation; if the height of the first steel bar protruding from the upper surface of the pad stone is greater than 2 mm and within 2 mm of the required elevation of the bridge bearing, the top wall of the first steel bar is grinded by a grinder until it meets the bottom plate elevation; through the cutting and grinding in S2, it is convenient to correct the height of the first steel bar protruding from the upper surface of the pad stone, so that the elevation of the bottom plate meets the construction requirements and the construction efficiency is improved.

[0025] Optionally, the level adjustment member is a telescopic rod; the telescopic rod includes a coaxially arranged fixed section and an adjusting section, the fixed section is sleeved on the adjusting section, and the fixed section is pre-embedded in the pad stone, and the fixed section is threadedly connected to the adjusting section.

[0026] By adopting the above technical solution, the adjusting section is rotated. Since the adjusting section is threadedly connected to the fixed section, the adjusting section moves along the axial direction of the fixed section, thereby facilitating the adjustment of the height of the telescopic rod protruding from the upper surface of the pad stone. The designed telescopic rod is convenient for adjusting the elevation of the bottom plate, and at the same time, it is convenient for supporting the bottom plate, thereby improving the construction efficiency of the bridge foundation.

[0027] Optionally, in S2, each adjusting section is rotated to adjust the height L of the telescopic rod protruding from the upper surface of the cushion stone;

[0028] The height L of the telescopic rod protruding from the upper surface of the cushion stone is equal to the required elevation H of the bridge support, and the height L1 of each fixed section protruding from the upper surface of the cushion stone is less than the required elevation H of the bridge support.

[0029] By adopting the above technical solution, the adjusting section is rotated. Since the adjusting section is threadedly connected to the fixed section, the adjusting section moves along the axial direction of the fixed section until the height of the telescopic rod protruding from the upper surface of the cushion stone is equal to the elevation of the base plate, and then the base plate is installed; by adjusting the height of the telescopic rod in S2, it is convenient to correct the height of the telescopic rod protruding from the upper surface of the cushion stone, so that the elevation of the base plate meets the construction requirements, improves construction efficiency, and at the same time, saves raw materials and reduces production costs.

[0030] Optionally, the horizontality adjustment member includes a second steel bar and an adjustment rod sleeved on the second steel bar, the adjustment rod includes a connecting section and a rotating section coaxially arranged, the connecting section is sleeved on the second steel bar, and the second steel bar is pre-embedded in the pad stone, and the connecting section and the rotating section are threadedly connected.

[0031] By adopting the above technical solution, the connecting section is sleeved on the second steel bar, and then the rotating section is adjusted. Since the rotating section is threadedly connected to the connecting section, the rotating section moves along the axial direction of the connecting section, thereby realizing the adjustment of the total height of the second steel bar and the adjusting rod protruding from the upper surface of the pad stone; the designed second steel bar and adjusting rod are convenient for adjusting the elevation of the bottom plate, and at the same time, are convenient for supporting the bottom plate, thereby improving the construction efficiency of the bridge foundation.

[0032] Optionally, in S2, each rotating segment is rotated to adjust the total height L of the second steel bar and the adjusting rod protruding from the upper surface of the cushion stone;

[0033] Among them, the total height L of the second steel bar and the adjusting rod protruding from the upper surface of the pad stone is equal to the required elevation H of the bridge bearing, and the total height L2 of each second steel bar and the connecting section protruding from the upper surface of the pad stone is less than the required elevation H of the bridge bearing.

[0034] By adopting the above technical solution, the connecting section is sleeved on the second steel bar, and the second steel bar and the connecting section are fixed, and then the rotating section is adjusted. Since the rotating section is threadedly connected to the connecting section, the rotating section moves along the axial direction of the connecting section, thereby realizing the adjustment of the total height of the second steel bar and the protruding upper surface of the adjusting rod on the pad stone; by correcting the height of the adjusting rod and the protruding upper surface of the pad stone of the second steel bar in S2, it is convenient to make the elevation of the bottom plate meet the construction requirements, and it is convenient to support the bottom plate, thereby improving the construction efficiency of the bridge foundation, and at the same time, saving raw materials and reducing production costs.

[0035] Optionally, before installing the frame formwork in S4, the upper surface of the cushion stone is roughened.

[0036] By adopting the above technical solution, the surface of the cushion stone is roughened, which is convenient for pouring mortar in the next step and improves the connection performance between the mortar and the surface of the cushion stone.

[0037] Optionally, the level adjustment member is provided with an abutment plate for abutting against a side wall of a bridge support, a telescopic plate is provided on a side of the abutment plate close to the level adjustment member, and the telescopic plate is connected to the level adjustment member on a side away from the abutment plate.

[0038] By adopting the above technical solution, the telescopic plate is adjusted, and the telescopic plate drives the abutment plate to move until the abutment plate is in contact with the side wall of the bottom plate, thereby achieving the limitation of the bottom plate by the abutment plate; the designed abutment plate is convenient for limiting the bottom plate, avoiding the bottom plate from shifting in the horizontal direction, improving the installation accuracy of the bottom plate, and thereby improving the installation accuracy of the bridge bearing.

[0039] Optionally, the telescopic plate includes a fixing portion, an adjusting portion and a locking bolt, the fixing portion is connected to the level adjustment member, the adjusting portion is slidably connected to the fixing portion, and one end of the adjusting portion away from the fixing portion is connected to the abutting plate;

[0040] The locking bolt is used to fix the position of the adjusting part.

[0041] By adopting the above technical solution, the locking bolt is adjusted so that the adjusting part can slide along the fixing part, and force is applied to the adjusting part, so that the adjusting part drives the abutment plate to move until the abutment plate fits against the side wall of the bottom plate, and then the locking bolt is adjusted to fix the position of the adjusting part, thereby fixing the position of the bottom plate. The designed telescopic plate facilitates the adjustment of the position of the abutment plate, avoids the horizontal displacement of the bottom plate, and improves the installation accuracy of the bridge bearing.

[0042] In summary, the present application includes at least one of the following beneficial technical effects:

[0043] 1. Through the bridge bearing installation method, the level adjustment piece is embedded in the cushion stone, so that the position of the level adjustment piece is fixed, reducing the influence of external force on the position of the level adjustment piece, thereby reducing the influence of external force on the position of the bridge bearing bottom plate, improving the levelness of the bridge bearing, and enhancing the safety performance of the bridge;

[0044] 2. Through the cast-in-place pile construction technology, the designed abutment plate is convenient for limiting the bottom plate, avoiding the bottom plate from shifting in the horizontal direction, improving the installation accuracy of the bottom plate, and thus improving the installation accuracy of the bridge bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the overall structure of the bridge bearing installation method of Example 1 of the present application;

[0046] Figure 2 yes Figure 2 A magnified schematic diagram of part A;

[0047] Figure 3This is a schematic diagram of the structure of the second level adjustment member of the bridge support installation method in Example 1 of the present application;

[0048] Figure 4 This is a schematic diagram of the structure of the third level adjustment component of the bridge bearing installation method in Example 1 of the present application.

[0049] Explanation of the reference numerals in the accompanying drawings: 1. Pad stone; 11. Anchor bolt mounting hole; 2. Bridge bearing; 21. Bottom plate; 22. Anchor bolt under bridge bearing; 3. Level adjustment member; 31. First steel bar; 32. Telescopic plate; 321. Fixed portion; 322. Adjustment portion; 323. Locking bolt; 33. Abutment plate; 34. Telescopic rod; 341. Adjustment section; 342. Fixed section; 35. Adjustment rod; 351. Rotation section; 352. Connection section; 353. Second steel bar. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-4 This application is described in further detail.

[0051] An embodiment of the present application discloses a method for installing a bridge bearing.

[0052] Reference Figure 1 , a bridge bearing installation method, comprising the following steps:

[0053] S1. Casting pad stone 1:

[0054] S11: Prepare a steel cage, weld an embedded steel plate on the upper surface of the steel cage, and use multi-point welding between the embedded steel plate and the steel cage; then fix at least three level adjustment members 3 on the upper surface of the embedded steel plate. In this application, the level adjustment members 3 can be three, four, or five, as long as they can meet the requirements of stable support of the bottom plate 21; in this embodiment, four level adjustment members 3 are provided, and the four level adjustment members 3 are welded near the four corners of the embedded steel plate;

[0055] S12: installing a cushion stone forming mold near the upper surface of the bridge substructure, and then installing embedded cylinders at four corners in the cushion stone forming mold, and the height of the embedded cylinders is higher than the height of the forming cavity of the cushion stone forming mold; covering the open end of the embedded cylinder away from the embedded steel plate with a covering film, and the covering film is tied to the embedded cylinder; then pouring concrete into the cushion stone forming mold;

[0056] Each embedded tube has a cavity reserved inside for burying the anchor bolt 22 under the bridge support;

[0057] The height L of each level adjustment member 3 protruding from the upper surface of the cushion stone 1 must be greater than the required elevation H of the bridge support 2;

[0058] S13: After the concrete is initially set, the covering film is removed; then the embedded cylinder is rotated and gradually lifted, and this operation is repeated until the embedded cylinder is removed.

[0059] S2: Measurement and correction of the elevation of the base plate 21.

[0060] S3: Adjust the levelness of the bottom plate 21:

[0061] S31: placing the bottom plate 21 on the upper surfaces of the four level adjustment members 3, and measuring whether the levelness of the bottom plate 21 meets the design requirements. If yes, proceed to S4; otherwise, proceed to S32;

[0062] S32: Correct the L value of at least one of the levelness adjusting members 3, and measure again whether the levelness of the base plate 21 meets the design requirements. If yes, proceed to S4; if not, proceed to S32 again.

[0063] S4. Install the frame template:

[0064] S41, roughening the upper surface of the cushion stone 1, and then cleaning the debris and powder on the surface of the cushion stone 1;

[0065] S42, installing the anchor bolt 22 under the bridge support in the anchor bolt installation hole 11 of the bottom plate 21, and extending one end of the anchor bolt 22 under the bridge support into the anchor bolt installation hole 11 of the cushion stone 1;

[0066] S43. Install a frame formwork on the side wall of the cushion stone 1, make the frame formwork fit with the side wall of the cushion stone 1, and install support around the outer periphery of the frame formwork.

[0067] S5. Pouring mortar: Pouring mortar from the center position of the frame template forming cavity toward the periphery, and filling the anchor bolt installation holes 11 of the cushion stone 1. During the pouring process, the mortar is vibrated and compacted.

[0068] S6. Install the remaining components of the bridge support 2.

[0069] Reference Figure 1 and Figure 2 In the present application, three types of level adjustment members 3 are provided. The first type of level adjustment member 3 is a first steel bar 31 with a diameter of 18mm-24mm. In the present embodiment, the diameter of the first steel bar 31 is 20mm. In the process of measuring and correcting the elevation of the S2 bottom plate 21, the first steel bar 31 is firstly cut. The height D of the first steel bar 31 protruding from the upper surface of the cushion stone 1 after cutting is 1mm-2mm. The height D of each first steel bar 31 protruding from the upper surface of the cushion stone 1 is greater than the height difference of the required elevation H of the bridge bearing 2 by 1mm-2mm. Then, the upper surface of the first steel bar 31 is polished by a grinding wheel.

[0070] In order to prevent the bottom plate 21 from shifting during the mortar pouring process, a telescopic plate 32 may be added to the first steel bar 31, one end of the telescopic plate 32 is connected to the first steel bar 31, and an abutment plate 33 for abutting against the side wall of the bottom plate 21 is provided at one end of the telescopic plate 32 away from the first steel bar 31, and the length direction of the first steel bar 31 is the same as the length direction of the abutment plate 33; the telescopic plate 32 includes a fixing portion 321, an adjusting portion 322 and a locking bolt 323, the fixing portion 321 is welded to the first steel bar 31, the adjusting portion 322 is slidably connected to the fixing portion 321, and the end of the adjusting portion 322 away from the fixing portion 321 is welded to the abutment plate 33; The locking bolt 323 is used to fix the position of the adjusting portion 322. The locking bolt 323 passes through the fixing portion 321 and is pressed against the side wall of the adjusting portion 322, and the locking bolt 323 is threadedly connected to the fixing portion 321. The locking bolt 323 is separated from the adjusting portion 322 by rotating the locking bolt 323, and then the position of the adjusting section 341 is adjusted. The adjusting section 341 drives the abutment plate 33 to move until the abutment plate 33 is in contact with the side wall of the bottom plate 21, thereby limiting the bottom plate 21 and avoiding the bottom plate 21 from shifting in the horizontal direction. During the mortar pouring process, the telescopic plate 32 and the abutment plate 33 are poured into the inner cavity of the frame template.

[0071] Reference Figure 1 and Figure 3 The second level adjustment member 3 is a telescopic rod 34, which includes a coaxially arranged fixed section 342 and an adjusting section 341, the fixed section 342 is sleeved on the adjusting section 341, and the fixed section 342 is pre-embedded in the pad stone 1, and the fixed section 342 is threadedly connected to the adjusting section 341; during the measurement and correction of the elevation of the S2 base plate 21, each adjusting section 341 is rotated to adjust the height L of the telescopic rod 34 protruding from the upper surface of the pad stone 1; wherein, the height L of the telescopic rod 34 protruding from the upper surface of the pad stone 1 is equal to the required elevation H of the bridge bearing 2, and the height L1 of each fixed section 342 protruding from the upper surface of the pad stone 1 is less than the required elevation H of the bridge bearing 2.

[0072] In order to prevent the position of the base plate 21 from shifting during the mortar pouring process, compared with the first level adjustment member 3, when the second level adjustment member 3 is used, the end of the fixing portion 321 away from the adjusting portion 322 is welded to the fixing section 342; in order to facilitate the adjustment of the direction of the abutment plate 33, the end of the fixing portion 321 away from the adjusting portion 322 can also be rotatably connected to the fixing section 342, and the fixing portion 321 rotates along the circumferential direction of the fixing section 342.

[0073] Reference Figure 1 and Figure 4The third level adjustment member 3 includes a second steel bar 353 and an adjustment rod 35 sleeved on the second steel bar 353, the adjustment rod 35 includes a coaxially arranged connecting section 352 and a rotating section 351, the connecting section 352 is sleeved on the second steel bar 353, and the axial direction of the connecting section 352 is the same as the length direction of the second steel bar 353; the second steel bar 353 is pre-embedded in the pad stone 1, and the connecting section 352 is welded to the second steel bar 353; the connecting section 352 and the rotating section 351 are threadedly connected; during the measurement and correction of the elevation of the S2 bottom plate 21, each rotating section 351 is rotated to adjust the total height L of the second steel bar 353 and the adjustment rod 35 protruding from the upper surface of the pad stone 1; wherein, the total height L of the second steel bar 353 and the adjustment rod 35 protruding from the upper surface of the pad stone 1 is equal to the required elevation H of the bridge bearing 2, and the total height L2 of each second steel bar 353 and the connecting section 352 protruding from the upper surface of the pad stone 1 is less than the required elevation H of the bridge bearing 2.

[0074] In order to prevent the position of the base plate 21 from shifting during the mortar pouring process, compared with the first level adjustment member 3, when the third level adjustment member 3 is used, the end of the fixing portion 321 away from the adjusting portion 322 is welded to the connecting section 352; in order to facilitate the adjustment of the direction of the abutment plate 33, the end of the fixing portion 321 away from the adjusting portion 322 can also be rotatably connected to the connecting section 352, and the fixing portion 321 rotates along the circumferential direction of the connecting section 352.

[0075] The implementation principle of a bridge bearing installation method in an embodiment of the present application is as follows: when installing the bridge bearing 2, first weave a steel cage and install the steel cage on the bridge substructure, then fix the embedded steel plate on the upper surface of the steel cage, and weld four horizontal adjustment parts on the upper surface of the embedded steel plate, and install an embedded tube on the upper surface of the embedded steel plate according to the installation position of the lower anchor bolt 22 of the bridge bearing, so that the lower anchor bolt 22 of the bridge bearing can be extended into the embedded tube during the subsequent construction process, and the top wall of the embedded tube is higher than the designed height of the cushion stone 1; install a cushion stone forming mold on the bridge substructure, so that the molding cavity height of the cushion stone forming mold is lower than the top wall of the embedded tube, and then pour concrete into the molding cavity of the cushion stone forming mold, so that the concrete surface meets the size requirements of the cushion stone 1; wait for the concrete to initially set, remove the embedded tube; until After the cushion stone 1 is solidified and formed, the height of the level adjustment member 3 protruding from the cushion stone 1 is corrected according to the elevation of the bridge bearing 2; after the correction is completed, the bridge bearing 2 is placed on the level adjustment member 3, and the levelness of the bridge bearing 2 is measured to see whether it meets the design requirements. If it does, the frame template is installed; if it does not meet the design requirements, the L value of at least one of the level adjustment members 3 is corrected, and the levelness of the bridge bearing 2 is measured again to see whether it meets the design requirements at this time, and the level adjustment member 3 is repeatedly adjusted until the levelness of the bridge bearing 2 meets the design requirements; then the upper surface of the cushion stone 1 is roughened, and the debris and powder on the surface of the cushion stone 1 are cleaned, and then the anchor bolts 22 under the bridge bearing and the frame template are installed, and then mortar is poured into the inner cavity of the frame template, and after the mortar hardens, the remaining components of the bridge bearing 2 are installed.

[0076] 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 bridge bearing installation method, characterized in that: The following steps are involved: S1. Casting of pad stone (1): S11: preparing a steel cage, fixing an embedded steel plate on the upper surface of the steel cage, and fixing at least three level adjustment members (3) on the upper surface of the embedded steel plate; S12: installing a pad stone forming mold near the upper surface of the bridge substructure, then installing embedded cylinders at four corners in the pad stone forming mold, and pouring concrete into the pad stone forming mold; Each embedded tube has a cavity reserved inside for embedding anchor bolts (22) under the bridge support; The height L of each level adjustment member (3) protruding from the upper surface of the cushion stone (1) must be greater than the required elevation H of the bridge support (2); S2: measurement and correction of the elevation of the base plate (21); S3: Adjust the levelness of the bottom plate (21): S31: placing the bottom plate (21) on at least three level adjustment members (3), and measuring whether the levelness of the bottom plate (21) meets the design requirements. If yes, proceed to S4; if not, proceed to S32; S32: Correct the L value of at least one of the level adjustment members (3), and measure again whether the levelness of the bottom plate (21) meets the design requirements. If yes, proceed to S4; if no, proceed to S32 again; The level adjustment member (3) is provided with an abutment plate (33) for abutting against the side wall of the bridge support (2); a telescopic plate (32) is provided on the side of the abutment plate (33) close to the level adjustment member (3); and a side of the telescopic plate (32) away from the abutment plate (33) is connected to the level adjustment member (3); The telescopic plate (32) comprises a fixing portion (321), an adjusting portion (322) and a locking bolt (323); the fixing portion (321) is connected to the levelness adjusting member (3); the adjusting portion (322) is slidably connected to the fixing portion (321); and one end of the adjusting portion (322) away from the fixing portion (321) is connected to the abutting plate (33); the locking bolt (323) is used to fix the position of the adjusting portion (322); S4. Install the frame formwork; S5, pouring mortar; S6. Install the remaining components of the bridge support (2).

2. The bridge bearing installation method according to claim 1, characterized in that: The level adjustment member (3) is a first steel bar (31) with a diameter of 18 mm to 24 mm.

3. A bridge bearing installation method according to claim 2, characterized in that: In S2, the first steel bars (31) are first cut, and the height of the cut first steel bars (31) protruding from the upper surface of the cushion stone (1) is D, and the height D of each first steel bar (31) protruding from the upper surface of the cushion stone (1) is greater than the required height H of the bridge support (2) by 1 mm to 2 mm; The upper surface of the first steel bar (31) is then ground.

4. The bridge bearing installation method according to claim 1, characterized in that: The level adjustment member (3) is a telescopic rod (34); the telescopic rod (34) comprises a coaxially arranged fixed section (342) and an adjusting section (341); the fixed section (342) is sleeved on the adjusting section (341), and the fixed section (342) is pre-buried in the cushion stone (1); the fixed section (342) is threadedly connected to the adjusting section (341).

5. The bridge bearing installation method according to claim 4, characterized in that: In the step S2, each adjusting section (341) is rotated to adjust the height L of the telescopic rod (34) protruding from the upper surface of the cushion stone (1); The height L of the telescopic rod (34) protruding from the upper surface of the cushion stone (1) is equal to the required elevation H of the bridge support (2), and the height L1 of each fixed section (342) protruding from the upper surface of the cushion stone (1) is less than the required elevation H of the bridge support (2).

6. The bridge bearing installation method according to claim 1, characterized in that: The level adjustment member (3) comprises a second steel bar (353) and an adjustment rod (35) sleeved on the second steel bar (353); the adjustment rod (35) comprises a connecting section (352) and a rotating section (351) coaxially arranged; the connecting section (352) is sleeved on the second steel bar (353), and the second steel bar (353) is pre-embedded in the cushion stone (1); the connecting section (352) and the rotating section (351) are threadedly connected.

7. The bridge bearing installation method according to claim 6, characterized in that: In the step S2, each rotating section (351) is rotated to adjust the total height L of the second steel bar (353) and the adjusting rod (35) protruding from the upper surface of the cushion stone (1); The total height L of the second steel bar (353) and the adjusting rod (35) protruding from the upper surface of the cushion stone (1) is equal to the required elevation H of the bridge support (2), and the total height L2 of each second steel bar (353) and the connecting section (352) protruding from the upper surface of the cushion stone (1) is less than the required elevation H of the bridge support (2).

8. The bridge bearing installation method according to claim 1, characterized in that: Before installing the frame formwork in S4, the upper surface of the cushion stone (1) is roughened.

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