Crane hoisting construction method based on bridge component

Abstract

The invention discloses a crane hoisting construction method based on a bridge component, and relates to the technical field of bridge construction, and the crane hoisting construction method comprises the following steps: hoisting a bridge left middle support leg by using a crane, and then hoisting a bridge left rear support leg; hoisting the other two sections of main beams in place temporarily by using a crane, and temporarily connecting the other two sections of main beams with the left rear supporting leg; connecting the two main beams, transversely moving the main beams leftwards, and temporarily connecting the main beams through a left rear supporting leg in the transverse moving process; when the left rear supporting leg transversely moves to the position of a web plate on the leftmost side of the steel box girder, temporary connection is removed, a cable rope is used for fixing, a third main beam is hoisted and then hoisted again, and after firm connection, the main beam continues to transversely move leftwards; the left rear supporting leg is connected with the main beam; hoisting a right rear supporting leg and a fourth section of main beam; and installing a main beam transverse link to connect the two main beams. The technical problems that operation parameters are difficult to control, the component hoisting sequence is not scientific and temporary connection and fixation are not standard in bridge structure component crane hoisting construction are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a crane hoisting construction method based on bridge components. Background Art

[0002] With the development of transportation infrastructure construction, the scale and complexity of bridge projects are increasing. In the process of bridge construction, the hoisting and installation of bridge structural components is an extremely critical link. The quality of its construction method is directly related to the quality, progress and construction safety of the project. Traditional bridge hoisting construction methods have many disadvantages.

[0003] On the one hand, there is a lack of precise control over the crane operating parameters during the hoisting process, and the operating radius and boom length are often set arbitrarily, which can easily lead to overloaded crane operation or overturning accidents due to insufficient stability, bringing huge risks to on-site personnel and equipment. On the other hand, there is a lack of scientific planning for the hoisting sequence of multiple bridge components, and the connection between the components is not smooth. For example, the hoisting of the left and right parts failed to fully consider the layout of the construction site and the mechanical balance, resulting in low construction efficiency and frequent delays in the construction period.

[0004] Furthermore, in the process of temporary connection and fixation of components, the operation methods are crude and non-standard. For example, if the temporary fixation of the rear legs only uses simple rope binding, it cannot adapt to complex construction conditions and is easy to cause component displacement in subsequent construction, affecting the overall structural accuracy.

[0005] Moreover, traditional methods are unable to meet the special lifting requirements brought about by the differences in different types of bridge structures, and are unable to effectively coordinate the collaborative operations of multiple cranes, which seriously restricts the high-quality advancement of bridge construction.

[0006] Therefore, a new, efficient and accurate crane hoisting construction method for bridge structure components is urgently needed. Summary of the invention

[0007] To this end, the present invention provides a crane hoisting construction method based on bridge structures to solve the technical problems in the prior art of crane hoisting construction of bridge structure components, such as lack of reasonable planning of component hoisting sequence, unreliable temporary connection and fixation, and difficulty in meeting the requirements of different bridge structures and collaborative operations of multiple cranes, which in turn result in low construction efficiency, many safety hazards, and poor structural installation quality.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A crane hoisting construction method based on bridge components comprises the following steps:

[0010] S101, fully support the outriggers, divide the bridge into the left and right spans, use a crane to lift the middle outriggers on the left span of the bridge, and move it to the predetermined installation position for installation, with an operating radius of no more than 10m and a boom length of no more than 19.4m, then lift the rear outriggers on the left span of the bridge, with an operating radius of no more than 16m and a boom length of no more than 25.5m, and use a guy rope to tie and secure the rear outriggers 8m away from the guardrail on the left span of the bridge deck;

[0011] S102, the crane moves backward. After the crane moves backward into place, the outriggers are fully extended, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the middle outriggers and rear outriggers of the right span of the bridge are hoisted into place by the crane;

[0012] S103, with all outriggers supported, the boom length not exceeding 19.4m, the operating radius not exceeding 10m, the two main beams are temporarily hoisted into place by a crane, and the two main beams are temporarily connected to the left rear outriggers;

[0013] S104, the crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, the crane is used to temporarily lift the other two main beams into place, and the other two main beams are temporarily connected to the left rear outriggers;

[0014] S105: Fully support the outriggers of the left crane, with the boom length no greater than 37.8m and the operating radius no greater than 20m. Use the left crane to lift the main beam cross-connection to connect the two main beams, and then move the main beam to the left. During the horizontal movement, temporarily connect the outriggers after the left span;

[0015] S106: When the left rear outrigger moves horizontally to the leftmost web of the steel box girder, the temporary connection is released and fixed with a guy rope. The main beam continues to move horizontally. After the main beam moves horizontally for 8m, it stops moving. The right crane moves forward with the outriggers fully supported. The boom length is not more than 19.4m and the operating radius is not more than 10m. The third main beam is hoisted. Then the right crane moves backward with the operating radius and boom length unchanged. The third main beam is hoisted again. After the connection is firm, the main beam continues to move horizontally to the left.

[0016] S107, the main beam stops moving horizontally after it moves 8m beyond the rear outrigger, and the left rear outrigger is connected to the main beam;

[0017] S108, the right crane moves forward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the fourth main beam is hoisted;

[0018] S109, the right crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the right rear outriggers and the fourth main beam are hoisted;

[0019] S110, the right crane legs are fully supported, the boom length does not exceed 25.5m, the operating radius does not exceed 14m, and the main beam is hoisted horizontally to connect the two main beams.

[0020] On the basis of the above technical solution, the present invention is further described as follows:

[0021] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes the installation of a middle branch device, and the installation of the middle branch device includes:

[0022] Assemble the middle support wheel components into a whole according to the needs of straight, inclined and curved bridges, use a crane to lift the middle support wheel components to the upper part of the middle support transverse track, connect the temporary power supply of the transverse wheel box drive motor, check whether the running direction of the wheel box is consistent, install the middle support device on the middle support device transverse track according to the travel direction of the bridge, connect the temporary power supply, check whether the steering direction of the wheels of the middle support device wheel box is consistent, use a crane to temporarily place the rear support legs on the bridge deck, and fix them with 4 guy ropes.

[0023] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes beam installation, and the beam installation includes:

[0024] To splice the first two main beams, first assemble and connect the first and second guide beams;

[0025] Place the front ends of the two main beams on the wheel box of the middle support device, and the wheel box is connected and matched with the lower chord track of the main beam.

[0026] As a further solution of the present invention, the beam installation further comprises:

[0027] After assembling the first two main beams, move the main beam horizontally 8m to the left through the middle support leg, fix the left rear support leg to the main beam, lift the third main beam in the middle position with a crane, connect it to the second main beam, and fix it as required.

[0028] As a further solution of the present invention, the beam installation further comprises:

[0029] After the first three main beams are moved horizontally to the designed position, the fourth main beam is lifted by a crane at the middle position and connected to the third main beam and fixed as required.

[0030] As a further solution of the present invention, the crane hoisting construction method based on bridge structures also includes pump station installation, which includes: laying a patterned plate in the main beam frame next to the rear support position as a working platform, placing an oil pump on the working platform, fixing it on the main beam with iron wire, welding a steel wire rope on the main beam to serve as a mother rope for hanging a safety belt, adding hydraulic oil to the oil pump, and adjusting the height of the outriggers by using a built-in jack.

[0031] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes the installation of a motor reducer assembly, and the installation of the motor reducer assembly includes:

[0032] The gear side of the rear support wheel assembly faces upwards, apply a proper amount of grease on the gear teeth, install the motor reducer assembly on the rear support wheel assembly with bolts, and add gear oil.

[0033] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes the installation of a rear support wheel group, and the installation of the rear support wheel group includes:

[0034] Place the rear wheel assembly on the laid track according to the working state, and directly below the rear support. Then hang the rear support connecting beam on the rear wheel assembly, align the flange plate, and connect the rear wheel assembly and the rear support connecting beam with bolts.

[0035] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes the installation of the rear support connecting beam, and the installation of the rear support connecting beam includes:

[0036] The rear support telescopic tube falls down, aligns with the flange, and connects the rear support telescopic tube and the rear support connecting beam with bolts.

[0037] As a further solution of the present invention, the crane hoisting construction method based on the bridge structure also includes crane installation, and the crane installation includes:

[0038] Assemble the crane on the bridge deck, hang steel wire ropes on the four existing lifting points on the crane, select two steel wire ropes with a diameter of 43mm and a length of 12m, connect the steel wire ropes to the lifting ears of the crane with shackles, fix them, and check whether the shackles and steel wire ropes are installed correctly;

[0039] Then lift the crane onto the main beam track, lift the crane directly above the fixed pulley block, install the leaf spring, connect the fixed pulley block and the leaf spring with a screw, adjust the screw to make the fixed pulley block detach from the crane beam, and the screw has a certain pre-tightening force.

[0040] The present invention has the following beneficial effects:

[0041] This crane hoisting construction method based on bridge structures ensures that the crane always operates in a stable and safe working condition by accurately limiting the operating radius and boom length of the crane at each stage, such as the operating radius is no more than 10m and the boom length is no more than 19.4m when hoisting the left-side middle outrigger, and strictly controlling the corresponding parameters when hoisting the left-side rear outrigger, greatly reducing the risk of overturning and ensuring the safety of on-site personnel and equipment. At the same time, the rear outrigger is fixed with a wind rope or a specific method to further enhance the stability of the components during construction and reduce safety accidents caused by shaking and displacement of components.

[0042] This crane hoisting construction method based on bridge components has a scientifically planned hoisting sequence, from the left to the right, first the outriggers, then the main beams, and then the cross-links are carried out in an orderly manner. Each step is closely connected to reduce the time for the crane to wait, idle, and repeatedly adjust the position. For example, when hoisting the main beam, the left and right cranes have a reasonable division of labor and work together. The left crane is responsible for the cross-link hoisting and lateral movement guidance of the main beam at a specific stage, and the right crane intervenes in the main beam segment hoisting in a timely manner, making the entire construction process smooth and efficient, greatly shortening the construction period.

[0043] This crane hoisting construction method based on bridge structures strictly operates according to the predetermined installation position and temporary connection requirements, such as the precise temporary connection between the two main beams and the left rear support legs, and the dynamic temporary connection between the main beams and the rear support legs during the lateral movement of the main beams. It ensures that all components always maintain the correct relative position during the complex construction process, lays the foundation for the precise forming of the final bridge structure, effectively improves the overall structural quality of the bridge, and reduces subsequent rework and adjustment processes.

[0044] This crane hoisting construction method based on bridge structures fully considers the requirements of different bridge types such as straight, inclined and curved bridges. Whether it is the flexible assembly and use of the middle support wheel components or the reasonable arrangement of the hoisting process according to the characteristics of the bridge type, this method can be widely used in various types of bridge construction, broadening the scope of application of construction technology. There is no need to significantly adjust the construction plan due to changes in bridge type, reducing construction costs and technical difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the implementation mode of the present invention or the technical solution in the prior art, the drawings required for the implementation mode or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0046] Figures 1 to 30 A schematic diagram of the overall application state structure of the crane hoisting construction method based on the bridge structure provided in an embodiment of the present invention according to its specific construction times.

[0047] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0048] Crane 1; middle outrigger 2; rear outrigger 3; main beam 4. DETAILED DESCRIPTION

[0049] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the invention without substantially changing the technical content.

[0051] like Figures 1 to 3 As shown, an embodiment of the present invention provides a crane hoisting construction method based on bridge components, which specifically includes the following steps:

[0052] S101, fully support the outriggers, divide the bridge into the left and right spans, use crane 1 to lift the middle outrigger 2 of the left span of the bridge, and move it to the predetermined installation position for installation, with an operating radius of no more than 10m and a boom length of no more than 19.4m, then lift the rear outrigger 3 of the left span of the bridge, with an operating radius of no more than 16m and a boom length of no more than 25.5m, and use a guy rope to tie and secure the rear outrigger 8m away from the guardrail inside the left span of the bridge deck;

[0053] S102, crane 1 moves backward. After crane 1 moves backward into position, the outriggers are fully extended, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the middle outrigger 2 and the rear outrigger 3 of the right span of the bridge are hoisted into position by the crane;

[0054] S103, with the outriggers fully supported, the boom length not exceeding 19.4 m, the operating radius not exceeding 10 m, the two main beams 4 are temporarily hoisted into place by a crane, and the two main beams 4 are temporarily connected to the left rear outrigger 3;

[0055] S104, the crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, the other two main beams 4 are temporarily hoisted into place by the crane, and the other two main beams 4 are temporarily connected to the left rear outriggers 3;

[0056] S105: Fully support the outriggers of the left crane, with the boom length no greater than 37.8m and the operating radius no greater than 20m. Use the left crane to lift the main beam cross-connection to connect the two main beams, and then move the main beam to the left. During the horizontal movement, temporarily connect the outriggers after the left span;

[0057] S106: When the left rear outrigger moves horizontally to the leftmost web of the steel box girder, the temporary connection is released and fixed with a guy rope. The main beam continues to move horizontally. After the main beam moves horizontally for 8m, it stops moving. The right crane moves forward with the outriggers fully supported. The boom length is not more than 19.4m and the operating radius is not more than 10m. The third main beam is hoisted. Then the right crane moves backward with the operating radius and boom length unchanged. The third main beam is hoisted again. After the connection is firm, the main beam continues to move horizontally to the left.

[0058] S107, the main beam stops moving horizontally after it moves 8m beyond the rear outrigger, and the left rear outrigger is connected to the main beam;

[0059] S108, the right crane moves forward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the fourth main beam is hoisted;

[0060] S109, the right crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the right rear outriggers and the fourth main beam are hoisted;

[0061] S110, the right crane legs are fully supported, the boom length does not exceed 25.5m, the operating radius does not exceed 14m, and the main beam is hoisted horizontally to connect the two main beams.

[0062] The crane hoisting construction method based on the bridge structure also includes:

[0063] Middle branch device installation:

[0064] Assemble the middle support wheel components into a whole according to the needs of straight, inclined and curved bridges, use a crane to lift them to the upper part of the middle support transverse track, connect the temporary power supply of the transverse wheel box drive motor, check whether the running direction of the wheel box is consistent, install the middle support device on the middle support device transverse track according to the travel direction of the bridge, connect the temporary power supply, and check whether the steering direction of the wheels of the middle support device wheel box is consistent.

[0065] Use a crane to temporarily place the rear support leg on the bridge deck and secure it with four guy ropes (two ends are pulled on the web of the steel box girder, and the other two ends are pulled to the drain hole position of the cast-in-place beam).

[0066] Beam Installation:

[0067] (1) Splice the first two main beams. First assemble and connect the first and second guide beams in the longitudinal direction of the bridge. Use a truck crane to place the front ends of the two main beams on the wheel box of the middle support device. The wheel box is connected to the lower chord track of the main beam.

[0068] (2) After the first two main beams are assembled, move the main beam 8m to the left through the middle support leg, fix the left rear support leg to the main beam, lift the third main beam in the middle position with a crane, connect it to the second main beam, and fix it as required.

[0069] (3) After the first three main beams are moved horizontally to the designed position, the fourth main beam is lifted by a crane at the middle position and connected to the third main beam and fixed as required.

[0070] Rear outrigger installation:

[0071] Pump station installation: lay the patterned plate in the main beam frame next to the rear support as a working platform, place the oil pump on the working platform, fix it to the main beam with wire, weld a steel wire rope on the main beam to serve as the mother rope for hanging the safety belt, add hydraulic oil to the oil pump, and adjust the height of the outriggers using the built-in jack.

[0072] Installation of the motor reducer assembly: The gear side of the rear support wheel assembly faces upwards, apply a proper amount of grease on the gear teeth, install the motor reducer assembly on the rear support wheel assembly with bolts, and add gear oil.

[0073] Installation of the rear wheel assembly: Place the rear wheel assembly on the laid track according to the working state, and directly below the rear support, then hang the rear support connecting beam on the rear wheel assembly, align the flange plate, and connect the rear wheel assembly and the rear support connecting beam with bolts.

[0074] Installation of the rear support connecting beam: lower the rear support telescopic tube, align it with the flange, and connect the rear support telescopic tube and the rear support connecting beam with bolts.

[0075] Crane and accessories installation:

[0076] The crane and its ancillary facilities are lifted and installed on the bridge deck by one crane.

[0077] (1) Crane installation

[0078] Assemble the crane assembly on the bridge deck, hang the wire rope on the four existing lifting points on the crane, select two wire ropes with a diameter of Ф43mm and a length of 12m, connect the wire ropes to the crane's lifting lugs with shackles, fix them, and check whether the shackles and wire ropes are installed correctly. Then lift the crane onto the main beam track, install the leaf spring directly above the fixed pulley block, connect the fixed pulley block and the leaf spring with a screw, adjust the screw to allow the fixed pulley block to detach from the crane beam, and the screw has a certain pre-tightening force.

[0079] Electrical equipment installation:

[0080] When installing electrical equipment, refer to the electrical schematics and wiring diagrams. Before the bridge crane works, turn on the temporary power supply to confirm whether the direction of each drive motor is correct and consistent, whether the brake is effective, and whether each safety device is safe and reliable.

[0081] 1) Install the electrical system:

[0082] Install the electrical system according to the electrical schematic diagram, wiring diagram, electrical master diagram and related technical documents;

[0083] Before installation, check whether all electrical components are intact and whether the installation method and location comply with relevant regulations.

[0084] 2) Installation limit:

[0085] The electrician and the driver cooperate to install various safety devices and limit switches.

[0086] 3) Install ladders and platforms, etc.

[0087] Installation of sling (pulley block):

[0088] Thread the wire rope as required and install the sling.

[0089] 1) The wire rope must be inserted from the middle of the driven pulley.

[0090] 2) The end of the wire rope is fixed on the fixed pulley.

[0091] 3) After the wire rope is threaded, the hook will hang down naturally without twisting. The wire ropes must not interfere with each other.

[0092] 4) When the sling is lowered to the required lowest position, the wire rope on the drum should not be less than three turns and should not be more than 10 turns.

[0093] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A crane hoisting construction method based on bridge construction components, characterized in that: The steps include: S101, fully support the outriggers, divide the bridge into the left and right spans, use a crane to lift the middle outriggers on the left span of the bridge, and move it to the predetermined installation position for installation, with an operating radius of no more than 10m and a boom length of no more than 19.4m, then lift the rear outriggers on the left span of the bridge, with an operating radius of no more than 16m and a boom length of no more than 25.5m, and use a guy rope to tie and secure the rear outriggers 8m away from the guardrail on the left span of the bridge deck; S102, the crane moves backward. After the crane moves backward into place, the outriggers are fully extended, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the middle outriggers and rear outriggers of the right span of the bridge are hoisted into place by the crane; S103, with all outriggers supported, the boom length not exceeding 19.4m, the operating radius not exceeding 10m, the two main beams are temporarily hoisted into place by a crane, and the two main beams are temporarily connected to the left rear outriggers; S104, the crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, the crane is used to temporarily lift the other two main beams into place, and the other two main beams are temporarily connected to the left rear outriggers; S105: Fully support the outriggers of the left crane, with the boom length no greater than 37.8m and the operating radius no greater than 20m. Use the left crane to lift the main beam cross-connection to connect the two main beams, and then move the main beam to the left. During the horizontal movement, temporarily connect the outriggers after the left span; S106: When the left rear outrigger moves horizontally to the leftmost web of the steel box girder, the temporary connection is released and fixed with a guy rope. The main beam continues to move horizontally. After the main beam moves horizontally for 8m, it stops moving. The right crane moves forward with the outriggers fully supported. The boom length is not more than 19.4m and the operating radius is not more than 10m. The third main beam is hoisted. Then the right crane moves backward with the operating radius and boom length unchanged. The third main beam is hoisted again. After the connection is firm, the main beam continues to move horizontally to the left. S107, the main beam stops moving horizontally after it moves 8m beyond the rear outrigger, and the left rear outrigger is connected to the main beam; S108, the right crane moves forward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the fourth main beam is hoisted; S109, the right crane moves backward, the outriggers are fully supported, the boom length does not exceed 19.4m, the operating radius does not exceed 10m, and the right rear outriggers and the fourth main beam are hoisted; S110, the right crane legs are fully supported, the boom length does not exceed 25.5m, the operating radius does not exceed 14m, and the main beam is hoisted horizontally to connect the two main beams.

2. The crane hoisting construction method based on bridge structure according to claim 1 is characterized in that: It also includes the installation of the middle branch device, including: Assemble the middle support wheel components into a whole according to the needs of straight, inclined and curved bridges, use a crane to lift the middle support wheel components to the upper part of the middle support transverse track, connect the temporary power supply of the transverse wheel box drive motor, check whether the running direction of the wheel box is consistent, install the middle support device on the middle support device transverse track according to the travel direction of the bridge, connect the temporary power supply, check whether the steering direction of the wheels of the middle support device wheel box is consistent, use a crane to temporarily place the rear support legs on the bridge deck, and fix them with 4 guy ropes.

3. The crane hoisting construction method based on bridge structure according to claim 1 is characterized in that: It also includes beam installation, including: To splice the first two main beams, first assemble and connect the first and second guide beams; Place the front ends of the two main beams on the wheel box of the middle support device, and the wheel box is connected and matched with the lower chord track of the main beam.

4. The crane hoisting construction method based on bridge construction components according to claim 3 is characterized in that: The beam installation also includes: After assembling the first two main beams, move the main beam horizontally 8m to the left through the middle support leg, fix the left rear support leg to the main beam, lift the third main beam in the middle position with a crane, connect it to the second main beam, and fix it as required.

5. The crane hoisting construction method based on bridge structure according to claim 4 is characterized in that: The beam installation also includes: After the first three main beams are moved horizontally to the designed position, the fourth main beam is lifted by a crane at the middle position and connected to the third main beam and fixed as required.

6. The crane hoisting construction method based on bridge structure according to claim 1 is characterized in that: It also includes pump station installation, including: Lay the patterned plate in the main beam frame next to the rear support position as a working platform, install the oil pump on the working platform, fix it to the main beam with wire, weld a steel wire rope on the main beam to serve as the mother rope for hanging the safety belt, add hydraulic oil to the oil pump, and adjust the height of the outriggers using the built-in jack.

7. The crane hoisting construction method based on bridge construction components according to claim 6 is characterized in that: It also includes the installation of the motor reducer assembly, including: The gear side of the rear support wheel assembly faces upwards, apply a proper amount of grease on the gear teeth, install the motor reducer assembly on the rear support wheel assembly with bolts, and add gear oil.

8. The crane hoisting construction method based on bridge construction components according to claim 7 is characterized in that: It also includes the installation of the rear outriggers, including: Place the rear wheel assembly on the laid track according to the working state, and directly below the rear support. Then hang the rear support connecting beam on the rear wheel assembly, align the flange plate, and connect the rear wheel assembly and the rear support connecting beam with bolts.

9. The crane hoisting construction method based on bridge construction components according to claim 8 is characterized in that: It also includes the installation of the rear support connecting beam, including: The rear support telescopic tube falls down, aligns with the flange, and connects the rear support telescopic tube and the rear support connecting beam with bolts.

10. The crane hoisting construction method based on bridge construction components according to claim 1, characterized in that: It also includes crane installation, including: Assemble the crane on the bridge deck, hang steel wire ropes on the four existing lifting points on the crane, select two steel wire ropes with a diameter of 43mm and a length of 12m, connect the steel wire ropes to the lifting ears of the crane with shackles, fix them, and check whether the shackles and steel wire ropes are installed correctly; Then lift the crane onto the main beam track, lift the crane directly above the fixed pulley block, install the leaf spring, connect the fixed pulley block and the leaf spring with a screw, adjust the screw to make the fixed pulley block detach from the crane beam, and the screw has a certain pre-tightening force.

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