Offshore composite beam transporting and erecting integrated construction equipment and construction method thereof
By designing an integrated construction equipment for transporting and erecting composite beams at sea, and utilizing the innovative structure of barge platforms and lifting equipment, efficient integrated construction of composite beams was achieved. This solved the problems of dispersed equipment and high coordination difficulty in traditional construction, thereby improving construction efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-02
- Publication Date
- 2026-04-14
AI Technical Summary
The transportation and erection of marine composite beams in traditional construction methods suffer from problems such as dispersed equipment, difficulty in coordination, and low efficiency.
Design an integrated construction equipment for transporting and erecting composite beams at sea, including a barge platform and lifting equipment. The equipment utilizes a vertical truss, truss beams, and a sliding trolley to achieve integrated operation of lifting and erecting composite beams. The angle of the truss beams is adjusted by bolts and hinges and opening and closing tie rods, and the sliding trolley is used to lift and place steel channel beams. Combined with lifting components, the lifting efficiency and stability are improved.
This enabled integrated operations from transportation to erection of marine composite beams, reducing construction uncertainties and costs, and improving construction efficiency and equipment synergy.
Smart Images
Figure CN121853487A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of bridge construction technology, specifically relating to an integrated construction equipment and method for transporting and erecting marine composite beams. Background Technology
[0002] In the construction of cross-sea bridges, composite beams have become the mainstream choice due to their advantages such as light weight, high strength, and short construction period. However, the special characteristics of the marine environment (such as wind and wave disturbances and complex seabed geology) and the large size of the composite beams themselves (the weight of a single beam often reaches 500-2000t and the length is 30-80m) make their transportation and erection the core challenges of the project.
[0003] In traditional construction methods, the transportation and erection of composite beams rely on independent equipment to be completed in stages. A single operation requires multiple steps, such as "prefabrication yard hoisting → transport ship loading → sea transport → on-site hoisting → bridge erecting machine docking". The equipment transfer and alignment between each step takes a long time, resulting in low bridge erection efficiency and great difficulty in coordination. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide an integrated construction equipment and method for transporting and erecting marine composite beams, so as to solve the problems of transporting and erecting marine composite beams and realize the integrated operation of marine composite beams from transportation to erection.
[0005] To achieve the above objectives, the present invention provides the following technical solution: An integrated construction equipment for transporting and erecting composite beams at sea includes a barge platform. The barge platform is equipped with a lifting device, which includes a vertical hoist. One end of the vertical hoist is fixed to one end of the barge platform. A first hoist beam perpendicular to the vertical hoist is provided at the other end of the vertical hoist, with one end of the first hoist beam fixed to the other end of the vertical hoist. A second hoist beam is provided at the other end of the first hoist beam, with one end of the second hoist beam hinged to the other end of the first hoist beam. The first truss beam is positioned facing the other end of the barge platform. A bolt hinge is provided at the connection between the first and second truss beams. The bolt hinge is used to adjust the connection angle of the second truss beam relative to the first truss beam. An opening and closing tie rod is provided on the surface of the other end of the second truss beam. One end of the opening and closing tie rod is rotatably connected to the end surface of the second truss beam. The lifting device also includes a sliding trolley, which can reciprocate on the first and second truss beams. The sliding trolley is provided with slings for lifting the steel channel beam.
[0006] Furthermore, four sets of fixed legs are evenly distributed around the outer side of the end of the vertical truss that connects to the barge platform. One end of each fixed leg is fixed to the vertical truss, and the other end of each fixed leg is abutted against the barge platform.
[0007] Furthermore, an anti-slip pad is provided on the end of the fixed outrigger that contacts the barge platform.
[0008] Furthermore, a hoisting assembly is provided at one end of the sling connected to the steel channel beam. The steel channel beam has a hoisting hole. The hoisting assembly includes a mounting column. One end of the mounting column is fixedly connected to the sling. The middle of the mounting column is hollow. A first deflection groove and a second deflection groove, which communicate with the interior of the mounting column, are symmetrically provided on the surface of the mounting column. A connecting shaft is provided inside the mounting column. Both ends of the connecting shaft are connected to the mounting column. A support rod is provided in the middle of the connecting shaft. The middle of the support rod is rotatably connected to the connecting shaft. A pull rope is provided at the end of the support rod near the sling. One end of the pull rope is fixedly connected to the end of the support rod. The other end of the pull rope passes through the top of the end of the second deflection groove and is located outside the sling. A counterweight is provided on the outer surface of the end of the support rod connected to the pull rope. The counterweight is positioned towards the first deflection groove.
[0009] Furthermore, the mounting post between the first deflection groove and the second deflection groove is symmetrically provided with a first mounting groove and a second mounting groove. The two ends of the connecting shaft are slidably connected in the first mounting groove and the second mounting groove. The mounting post on the outer side of the first mounting groove and the second mounting groove is provided with a sliding groove. Each sliding groove is provided with a stop block. The two stops block are respectively fixed to the two ends of the connecting shaft. The outer surface of the stop block is flush with the surface of the mounting post. Each stop block is provided with a sliding rod. One end of the sliding rod is fixedly connected to the stop block. The other end of the sliding rod passes through the end of the mounting post away from the cable. The other end of the sliding rod is provided with a baffle. The middle part of the baffle is provided with a return spring. The two ends of the return spring are respectively fixed to the surface of the baffle and the end of the mounting post.
[0010] Furthermore, the mounting column has an arc-shaped groove inside that matches the surface of the support rod.
[0011] Furthermore, the support rod is provided with a receiving groove, and the pull rope is positioned above the receiving groove.
[0012] A construction method for an integrated offshore composite beam transport and erection equipment includes the following construction steps: S1. Move the barge platform to the precast beam yard, unfold the second truss beam to the extended state through bolt hinges, and fix the opening and closing tie rod to the steel channel beam hoisting area; S2. The steel channel beam is hoisted by the sling driven by the sliding crane and placed stably in the bearing area of the barge platform. The second truss beam is then retracted to the vertical position. S3. The barge platform carrying the steel channel beam sails to the construction area and approaches the bridge pier. The second truss beam extends again, and the opening and closing tie rod supports it to the bridge abutment. S4. The sliding crane moves along the first and second truss beams to above the steel channel beam, and the slings connect to the steel channel beam and lift it. S5. Slowly lower the steel channel beam to the top of the pier, align it with the pier markings using the alignment baseline, and fix the steel channel beam to the pier using temporary connectors. S6. The slings detach from the steel channel beam, the sliding crane returns to the first truss beam, the bolt hinge controls the second truss beam to retract to a vertical state, and the barge platform is withdrawn to the next work point or returned to the precast beam yard.
[0013] The beneficial effects of this invention are as follows: This technical solution solves the challenges of transporting and erecting composite beams at sea through its ingenious structural design, enabling integrated operations from transportation to erection of composite beams at sea. It also addresses issues such as dispersed equipment and poor coordination in traditional construction, significantly reducing construction uncertainty and costs.
[0014] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description
[0015] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the integrated construction equipment of the present invention; Figure 2 This is a schematic diagram of the integrated construction equipment of the present invention lifting a steel channel beam from a ship. Figure 3 This is a schematic diagram of the integrated construction equipment of the present invention hoisting the steel channel beam to the construction area; Figure 4 This is a three-dimensional schematic diagram of the hoisting component in the integrated construction equipment of the present invention being placed into the hoisting hole; Figure 5 This is a three-dimensional schematic diagram of the rotating and unfolding support rod of the hoisting component in the integrated construction equipment of the present invention; Figure 6 This is a schematic diagram showing the support rod of the hoisting component in the integrated construction equipment of the present invention moving to the lower part of the mounting column; Figure 7 This is a three-dimensional schematic diagram of the lifting component in the integrated construction equipment of the present invention acting on the lifting hole on the steel channel beam.
[0016] The following labels are shown in the attached diagram: 1. Lifting equipment; 101. Fixed outriggers; 102. Vertical truss; 103. First truss beam; 104. Second truss beam; 105. Bolted hinge; 106. Sliding trolley; 107. Lifting slings; 108. Opening and closing tie rods; 2. Barge platform; 3. Steel channel beam; 301. Lifting hole; 4. Pier; 5. Abutment; 6. Pile foundation; 7. Mounting column; 8. First deflection groove; 9. Second deflection groove; 10. First mounting groove; 11. Second mounting groove; 12. Sliding groove; 13. Connecting shaft; 14. Support rod; 15. Receiving groove; 16. Stop block; 17. Counterweight block; 18. Pull rope; 19. Sliding rod; 20. Baffle plate; 21. Return spring; 22. Arc groove. Detailed Implementation
[0017] like Figures 1-7 As shown, an integrated construction equipment for transporting and erecting marine composite beams includes a barge platform 2. A lifting device 1 is mounted on the barge platform 2. The lifting device 1 includes a vertical hoist 102, one end of which is fixed to one end of the barge platform 2. A first hoist beam 103, perpendicular to the vertical hoist, is mounted on the other end of the vertical hoist. One end of the first hoist beam 103 is fixed to the other end of the vertical hoist. A second hoist beam 104 is mounted on the other end of the first hoist beam 103. One end of the second hoist beam 104 is hinged to the other end of the first hoist beam 103, and the other end of the second hoist beam 104 faces the other side of the barge platform 2. One end is provided with a bolt hinge 105 at the connection between the first truss beam 103 and the second truss beam 104. The bolt hinge 105 is used to adjust the connection angle of the second truss beam 104 relative to the first truss beam 103. The other end of the second truss beam 104 is provided with an opening and closing tie rod 108. One end of the opening and closing tie rod 108 is rotatably connected to the end surface of the second truss beam 104. The lifting device 1 also includes a sliding trolley 106, which can reciprocate on the first truss beam 103 and the second truss beam 104. The sliding trolley 106 is provided with a sling 107 for lifting the steel channel beam 3.
[0018] The working principle of the above technical solution is as follows: When transferring the steel channel beam 3 from the precast beam yard to the barge platform 2: At this time, the second truss beam 104 is rotated by the bolt hinge 105, so that the second truss beam 104 is parallel to the first truss beam 103, extending the second truss beam 104 into the precast beam yard area. Then, the opening and closing tie rod 108 is rotated to a vertical position to support the end of the second truss beam 104. That is, at this time, the sliding crane 106 can move from the first truss beam 103 to the second truss beam 104. The overhead crane 106 moves the sling 107 to the precast beam yard area to lift the steel channel beam 3. After lifting, the sliding overhead crane 106 moves the steel channel beam 3 to the bearing area of the barge platform 2 and places it there. Then, the second truss beam 104 is rotated to a vertical position through the bolt hinge 105. At this time, the end of the second truss beam 104 is located inside the barge platform 2, thus completing the operation of transferring the steel channel beam 3 from the precast beam yard to the barge platform 2. Then, the steel channel beam 3 is transferred to the construction area. When the steel channel beam 3 is transferred from the barge platform 2 to the construction area: At this time, the second truss beam 104 is rotated by the bolt hinge 105, so that the second truss beam 104 is set parallel to the first truss beam 103, so that the second truss beam 104 extends above the pile foundation 6, bridge abutment 5 and bridge pier 4 in the construction area. Then, the opening and closing tie rod 108 is rotated so that the end of the opening and closing tie rod 108 contacts and supports the bridge abutment 5. Then, the sliding crane 106 is controlled to move and the steel channel beam 3 is hoisted to the area below the second truss beam 104, i.e., in the construction area. Then, the steel channel beam 3 is slowly lowered to the top of the bridge pier 4. By aligning it with the positioning reference line and the marking on the bridge pier 4, the steel channel beam 3 is fixed to the bridge pier 4 using temporary connectors, thus completing the hoisting and assembly of the steel channel beam 3. Then, the sling 107 is disengaged from the steel channel beam 3, and the second truss beam 104 and the card box tie rod are reset by the bolt hinge 105.
[0019] This technical solution, through its ingenious structural design, solves the challenges of transporting and erecting composite beams at sea, enabling integrated operations from transportation to erection. It also addresses issues such as dispersed equipment and poor coordination in traditional construction, significantly reducing construction uncertainty and costs.
[0020] It should be explained that, in this technical solution, the bolt hinge 105 refers to the component that controls the rotation of the end of the second truss beam 104 relative to the first truss beam 103. This is existing technology and can be understood as the ends of the first truss beam 103 and the second truss beam 104 being hinged together, and a rotation drive (motor) is provided on the end of the first truss beam 103. The opening and closing lever 108 refers to the lever whose end is rotatably connected to the second truss beam 104 and which can be telescopically extended (telescopic lever) to support the end of the second truss beam 104 after unfolding, thereby improving the stability of hoisting and transportation. The sliding trolley 106 is mounted on the first truss beam 103 and the second truss beam 104 in an existing technology. This can be understood as the sliding trolley 106 having its own drive component (refer to the existing rail trolley), i.e., a rail setting. The first truss beam 103 and the second truss beam 104 move on the slide rails via their own drive components. It is easy to understand that a splicing slide rail should be provided at the hinge joint of the first truss beam 103 and the second truss beam 104 to connect the slide rails provided on the first truss beam 103 and the second truss beam 104, ensuring the continuity and stability of the sliding crane 106. The splicing slide rail can be set to protrude from the end of the second truss beam 104. That is, when the first truss beam 103 and the second truss beam 104 are parallel, the splicing slide rail fills the gap between the ends of the slide rails provided on the first truss beam 103 and the second truss beam 104, preventing the rollers on the drive components from falling off the gap. Of course, the problem of falling off can also be avoided by increasing the diameter of the rollers. This is a problem that can be easily solved by those skilled in the art, and will not be elaborated on here.
[0021] In one feasible embodiment, four sets of fixed legs 101 are evenly distributed around the outer side of the end where the vertical truss connects to the barge platform 2. One end of the fixed leg 101 is fixed to the vertical truss, and the other end of the fixed leg 101 is abutted against the barge platform 2. An anti-slip pad is provided on the end of the fixed leg 101 that contacts the barge platform 2 to improve the stability of the vertical truss and ensure construction safety.
[0022] In one feasible embodiment, a lifting assembly is provided at one end of the sling 107 connected to the steel channel beam 3. The steel channel beam 3 has a lifting hole 301 (which can be prefabricated and later used as a drainage hole). The lifting assembly includes a mounting column 7, one end of which is fixedly connected to the sling 107. The middle of the mounting column 7 is hollow (i.e., both ends are solid and the middle is hollow). A first deflection groove 8 and a second deflection groove 9, which communicate with the interior of the mounting column 7, are symmetrically provided on the surface of the mounting column 7. A connecting shaft 13 is provided inside the mounting column 7, and both ends of the connecting shaft 13 are connected to the mounting column 7 (at this time, the connection is fixed). (Attached within the wall thickness of the mounting column 7), a support rod 14 is provided in the middle of the connecting shaft 13. The middle of the support rod 14 is rotatably connected to the connecting shaft 13 (achieved by providing a through hole for sleeve connection to the connecting shaft 13). A pull rope 18 is provided on one end of the support rod 14 near the sling 107. One end of the pull rope 18 is fixedly connected to the end of the support rod 14. The other end of the pull rope 18 passes through the top of the end of the second deflection groove 9 and is located outside the sling 107. A counterweight 17 is provided on the outer surface of the end of the support rod 14 connected to the pull rope 18. The counterweight 17 is set towards the direction of the first deflection groove 8.
[0023] The working principle of the above technical solution is as follows: First, by pulling the rope 18 upwards, the end of the support rod 14 is rotated into the interior of the mounting column 7. At this point, the mounting column 7 can be inserted through the lifting hole 301, allowing it to fall below the small surface of the steel channel beam 3 (e.g., Figure 2 The steel channel beam 3 shown has relatively thin sides, so the lifting hole 301 is set here (the length of the mounting column 7 does not need to be too long). Then, the pull rope 18 is released. At this time, under the action of the counterweight 17, the support rod 14 will rotate outward, that is, the two ends of the support rod 14 rotate from the deflection groove to the outside of the mounting column 7. At this time, the length of the horizontally arranged support rod 14 is greater than the diameter of the lifting hole 301. When the lifting cable 107 is pulled upward, the two ends of the support rod 14 will be blocked and cannot move upward, thus realizing the lifting of the steel channel beam 3. After the lifting is completed, simply release the lifting cable 107 to let the mounting column 7 fall a certain distance below the steel channel beam 3, and then pull the pull rope 18 to rotate the end of the support rod 14 into the interior of the mounting column 7. At this time, the mounting column 7 can be taken out from the lifting hole 301.
[0024] This configuration, through its ingenious structural design, allows the end of the sling 107 to be quickly and stably connected to the steel channel beam 3, thereby enabling the hoisting operation. After hoisting, the end of the sling can also be quickly detached from the steel channel beam 3, simplifying the hoisting steps, improving hoisting efficiency, and ensuring high connection stability between the sling end and the steel channel beam 3 (in existing technologies, it is necessary to weld lifting lugs and then connect the sling 107 to the steel channel beam 3 using clamps or other methods, which is complex and inefficient).
[0025] In one feasible embodiment, a first mounting groove 10 and a second mounting groove 11 are symmetrically provided on the mounting post 7 between the first deflection groove 8 and the second deflection groove 9. The two ends of the connecting shaft 13 are slidably connected within the first mounting groove 10 and the second mounting groove 11. Sliding grooves 12 are provided on the outer sides of the mounting post 7 of both the first and second mounting grooves 10 and 11. The sliding grooves 12 are disposed on the surface of the mounting post 7 and are wider than the mounting grooves. Each sliding groove 12 is provided with a stop 16, the two ends of which slide in contact with the sides of the sliding groove 12. Blocks 16 are fixed to both ends of the connecting shaft 13. The outer surface of the blocks 16 is flush with the surface of the mounting column 7. Each block 16 has a sliding rod 19 on the side of the mounting column 7 away from the cable 107. One end of the sliding rod 19 is fixedly connected to the block 16, and the other end of the sliding rod 19 passes through the end of the mounting column 7 away from the cable. A baffle 20 is provided on the other end of the sliding rod 19. A return spring 21 is provided in the middle of the baffle 20. The two ends of the return spring 21 are fixed to the surface of the baffle 20 and the end of the mounting column 7, respectively.
[0026] In this configuration, the position of the connecting shaft 13 is maintained in the middle of the mounting column 7 by the action of the return spring 21 and the slide rod 19. This ensures that the outward rotation of the two ends of the support rod 14 from the first deflection groove 8 and the second deflection groove 9 is not affected, thus preventing rotational interference. The support rod 14 can be rotated from the vertical position to the horizontal position by pulling the rope 18. After the support rod 14 is rotated to the horizontal position, the sling 107 moves, causing the support rod 14 to contact the bottom surface of the steel channel beam 3. Then, the support rod 14 is compressed, which in turn drives the connecting shaft 13 and the stop block. 16 moves within the sliding groove 12, thereby moving the support rod 14 to the lower part of the mounting column 7, contacting the solid area of the mounting column 7. That is, during hoisting, the support rod 14 increases the support contact area by contacting the solid area of the mounting column 7, thus improving the load-bearing capacity and support effect of the support rod 14 during hoisting. If it does not move down to contact the solid part of the mounting column 7, all the load will be applied to the connecting shaft 13 in the middle of the mounting column 7, which is prone to fatigue damage (breakage), leading to hoisting accidents. After hoisting is completed, the return spring 21 will push the support rod 14 to the middle of the mounting column 7 during the process of restoring its deformation. At this time, the support rod 14 can be rotated into the interior of the mounting column 7 by the pull rope 18, making it easier to remove the mounting column 7 from the hoisting hole 301.
[0027] To put it another way, if the connecting shaft 13 is fixedly set in the middle of the mounting column 7, since the diameter of the mounting column 7 is fixed, if the diameter of the connecting shaft 13 is set to be relatively large, then the diameter of the support rod 14 will be relatively small. That is, when a load is applied, the support rod 14 is prone to breakage. Conversely, if the diameter is set to be relatively large, the connecting shaft 13 is prone to breakage. However, by setting components such as the return spring 21, when the load is borne, the support rod 14 moves down to contact the solid part of the mounting column 7. At this time, the connecting shaft 13 is not under force, that is, the diameter of the connecting shaft 13 can be set to be relatively small, and the diameter of the support rod 14 can be set to be relatively large. This increases the load-bearing capacity of the support rod 14. At the same time, the support rod 14 is in contact with the solid part of the mounting column 7, and the support area of the support rod 14 is large, further improving the load-bearing capacity. It is easy to understand that, in this embodiment, in order to further ensure that the mechanical properties of the support are not damaged, a notch can be set in the middle of the connecting shaft 13, and a rotating ring can be set in the notch. The surface of the rotating ring is connected to the two ends of the notch on the connecting shaft 13 by means of bearings or the like. Then, the rotating ring is sleeved and fixed in the middle of the support rod 14 to realize the rotation of the support rod 14. Since the connecting shaft 13 is not subjected to load force, this setting can also meet the usage requirements.
[0028] In one feasible embodiment, the mounting column 7 has an arc-shaped groove 22 inside that matches the surface of the support rod 14, so that the support rod 14 is located within the arc-shaped groove 22, changing from line contact to surface contact, further improving the contact support effect. In another feasible embodiment, the support rod 14 has a receiving groove 15, and the pull rope 18 is positioned above the receiving groove 15. That is, the width and depth of the receiving groove 15 can be relatively small to minimize damage to the mechanical properties of the support rod 14. The purpose is that when the support rod 14 contacts the steel channel beam 3, under the compression action, the pull rope 18 is squeezed into the receiving groove 15, avoiding the problem of the pull rope 18 being crushed and damaged.
[0029] A construction method for an integrated offshore composite beam transport and erection equipment includes the following construction steps: S1. Move the barge platform 2 to the precast beam yard, unfold the second truss beam 104 to the extended state through the bolt hinge 105, and fix the opening and closing tie rod 108 to the hoisting area of the steel channel beam 3. S2. The steel channel beam 3 is hoisted by the sling 107 driven by the sliding crane 106 and placed stably in the bearing area of the barge platform 2. The second truss beam 104 is then retracted to the vertical position. S3, the barge platform 2 carries the steel channel beam 3 to the construction area and approaches the bridge pier 4. The second truss beam 104 extends again and the opening and closing tie rod 108 supports it on the bridge abutment 5. S4. The sliding crane 106 moves along the first truss beam 103 and the second truss beam 104 to above the steel channel beam 3, and the sling 107 connects to the steel channel beam 3 and lifts it. S5. Slowly lower the steel channel beam 3 to the top of the pier 4, align it with the mark on the pier 4 by using the alignment reference line, and fix the steel channel beam 3 to the pier 4 using temporary connectors. S6, the sling 107 detaches from the steel channel beam 3, the sliding crane 106 returns to the first truss beam 103, the bolt hinge 105 controls the second truss beam 104 to retract to the vertical state, and the barge platform 2 withdraws to the next work point or returns to the precast beam yard.
[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.
Claims
1. An integrated construction equipment for transporting and erecting marine composite beams, characterized in that: The device includes a barge platform equipped with a lifting device. The lifting device includes a vertical hoist, one end of which is fixed to one end of the barge platform. A first hoist beam perpendicular to the vertical hoist beam is located at the other end of the vertical hoist beam, one end of which is fixed to the other end of the vertical hoist beam. A second hoist beam is located at the other end of the first hoist beam, with one end of the second hoist beam hinged to the other end of the first hoist beam, and the other end of the second hoist beam facing the barge platform. At the other end, a bolt hinge is provided at the connection between the first truss beam and the second truss beam. The bolt hinge is used to adjust the connection angle of the second truss beam relative to the first truss beam. An opening and closing tie rod is provided on the surface of the other end of the second truss beam. One end of the opening and closing tie rod is rotatably connected to the end surface of the second truss beam. The lifting device also includes a sliding trolley, which can reciprocate on the first truss beam and the second truss beam. The sliding trolley is provided with slings for lifting the steel channel beam.
2. The integrated construction equipment for transporting and erecting marine composite beams according to claim 1, characterized in that: Four sets of fixed legs are evenly distributed around the circumference on the outer side of the end where the vertical truss connects to the barge platform. One end of each fixed leg is fixed to the vertical truss, and the other end of each fixed leg is abutted against the barge platform.
3. The integrated construction equipment for transporting and erecting marine composite beams according to claim 2, characterized in that: The fixed support leg is equipped with an anti-slip pad at the end that contacts the barge platform.
4. The integrated construction equipment for transporting and erecting marine composite beams according to claim 1, characterized in that: A hoisting assembly is provided at one end of the sling connected to the steel channel beam. The steel channel beam has a hoisting hole. The hoisting assembly includes a mounting column. One end of the mounting column is fixedly connected to the sling. The middle of the mounting column is hollow. A first deflection groove and a second deflection groove, which communicate with the interior of the mounting column, are symmetrically arranged on the surface of the mounting column. A connecting shaft is provided inside the mounting column. Both ends of the connecting shaft are connected to the mounting column. A support rod is provided in the middle of the connecting shaft. The middle of the support rod is rotatably connected to the connecting shaft. A pull rope is provided at the end of the support rod near the sling. One end of the pull rope is fixedly connected to the end of the support rod. The other end of the pull rope passes through the top of the end of the second deflection groove and is located outside the sling. A counterweight is provided on the outer surface of the end of the support rod connected to the pull rope. The counterweight is oriented towards the first deflection groove.
5. The integrated construction equipment for transporting and erecting marine composite beams according to claim 4, characterized in that: The mounting post between the first deflection groove and the second deflection groove is symmetrically provided with a first mounting groove and a second mounting groove. The two ends of the connecting shaft are slidably connected in the first mounting groove and the second mounting groove. The mounting post outside the first mounting groove and the second mounting groove is provided with a sliding groove. Each sliding groove is provided with a stop block. The two stops are respectively fixed to the two ends of the connecting shaft. The outer surface of the stops is flush with the surface of the mounting post. Each stop is provided with a sliding rod. One end of the sliding rod is fixedly connected to the stop block. The other end of the sliding rod passes through the end of the mounting post away from the cable. The other end of the sliding rod is provided with a baffle. The middle of the baffle is provided with a return spring. The two ends of the return spring are respectively fixed to the surface of the baffle and the end of the mounting post.
6. The integrated construction equipment for transporting and erecting marine composite beams according to claim 5, characterized in that: The mounting column has an arc-shaped groove inside that matches the surface of the support rod.
7. The integrated construction equipment for transporting and erecting marine composite beams according to claim 4, characterized in that: The support rod is provided with a receiving groove, and the pull rope is located above the receiving groove.
8. A construction method for an integrated offshore composite beam transport and erection construction equipment according to any one of claims 1-7, characterized in that, The construction steps include the following: S1. Move the barge platform to the precast beam yard, unfold the second truss beam to the extended state through bolt hinges, and fix the opening and closing tie rod to the steel channel beam hoisting area; S2. The steel channel beam is hoisted by the sling driven by the sliding crane and placed stably in the bearing area of the barge platform. The second truss beam is then retracted to the vertical position. S3. The barge platform carrying the steel channel beam sails to the construction area and approaches the bridge pier. The second truss beam extends again, and the opening and closing tie rod supports it to the bridge abutment. S4. The sliding crane moves along the first and second truss beams to above the steel channel beam, and the slings connect to the steel channel beam and lift it. S5. Slowly lower the steel channel beam to the top of the pier, align it with the pier markings using the alignment baseline, and fix the steel channel beam to the pier using temporary connectors. S6. The slings detach from the steel channel beam, the sliding crane returns to the first truss beam, the bolt hinge controls the second truss beam to retract to a vertical state, and the barge platform is withdrawn to the next work point or returned to the precast beam yard.