River-crossing cable-stayed bridge steel box girder segmented hoisting equipment
By designing segmented hoisting equipment for the steel box girder of the cross-river cable-stayed bridge on a small floating crane vessel, and by using winches and cable systems to adjust the boom angle and cable length, the instability problem of small floating crane vessels during construction in rivers was solved, achieving stable hoisting and efficient construction of the steel box girder.
Patent Information
- Application Number
- CN202423268506.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When small floating cranes are used to construct cable-stayed bridges across rivers, there is a lack of effective methods to counteract the effects of environmental factors such as waves, which leads to instability in the hoisting of steel box girders and affects construction efficiency.
A segmented hoisting equipment for the steel box girder of a cross-river cable-stayed bridge is adopted, including a floating crane platform, a winch unit, a lifting boom, a tower, cables, slings, and hook assemblies. The winch controls the adjustment of the cables and slings, changing the inclination angle of the lifting boom and the suspension length of the slings to ensure suspension stability.
This improved the stability and construction efficiency of steel box girder hoisting, reduced swaying, and ensured the reliability and safety of construction.
Smart Images
Figure CN223561159U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to floating crane ship technical field especially relates to a kind of cross river cable-stayed bridge steel box girder sectional hoisting equipment. BACKGROUND
[0002] Cross river cable-stayed bridge, also known as cable-stayed bridge, is a kind of bridge with main beam directly pulled on bridge tower by many cables, which is a structural system combined by pressure tower, tension cable and bending beam body. The bridge deck structure bearing vehicle and pedestrian load generally adopts concrete structure, steel structure or steel-concrete composite structure.
[0003] When steel box girder is used as bridge deck, it is generally transported by hoisting equipment, and when cross river cable-stayed bridge is built, it is usually hoisted by floating crane ship, and the floating crane ship will sway when working on water due to the influence of various environmental factors such as wave, wind and tidal current, and then the steel box girder will oscillate.
[0004] In the prior art, the floating crane ship transports steel box girder through steel cable and lifting arm, and the factors such as suspension mode of lifting weight, gravity center position and height will affect the swing of lifting arm. Large floating crane ships used at sea use wave compensation system to offset the influence of wave on ship movement, but the cost is high, which is not suitable for small floating crane ships working in rivers. The existing small floating crane ships lack corresponding improvement means, and their use is limited, which affects construction efficiency. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings in the prior art and provides a kind of cross river cable-stayed bridge steel box girder sectional hoisting equipment.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A kind of cross river cable-stayed bridge steel box girder sectional hoisting equipment, including floating crane ship platform, winch unit and sling, the upper side of the floating crane ship platform is equipped with lifting arm, the bottom side of the lifting arm is equipped with tower, the top of the lifting arm is connected with cable, and the cable is equipped with wiring board;The top of the lifting arm is equipped with wire reel shaft, the top of the tower is equipped with wire guide wheel group, the top side of the lifting arm is connected with hook assembly by sling, wire guide wheel group is equipped with wire reel, wire reel is respectively corresponding with sling and cable, and winch unit is equipped with winch corresponding with sling and cable.
[0008] Preferably, the top of the tower is respectively resisted by sling and cable through wire guide wheel group, and one end of the cable is fixedly connected with the top of the lifting arm.
[0009] Preferably, the cable is provided with multiple groups, and is evenly arranged by wiring board, and the other end of the cable is connected with winch.
[0010] Preferably, one end of the sling passes around the wire sheave shaft and slides in contact with each other, the hook assembly is provided with at least two groups, the sling is correspondingly provided with the hook assembly, the sling is provided with multiple groups, the end of the sling passing around the wire sheave shaft is a vertical section, and the vertical sections of the slings are arranged in parallel and staggered in different planes.
[0011] Preferably, the hook assembly comprises a connecting frame, a movable buckle and a connecting buckle, one end of the sling is connected with the connecting frame, and the movable buckle is hinged between the connecting frame.
[0012] Preferably, the movable buckle and the connecting buckle are connected through a steel cable, and the lower side of the connecting buckle is provided with a hook or a bandage.
[0013] The utility model discloses the beneficial effects are:
[0014] Compared with the prior art, the utility model discloses a hoist traction cable, controls the change of the luffing angle of the hoisting arm, is convenient for the cooperation of the sling and hoists the steel box girder, shortens the length of the sling overhanging section, the combination of two kinds of adjustment modes improves the suspension operation convenience and the suspension stability, and meanwhile, the sling is provided with multiple groups and is staggered and distributed, is mutually restrained, reduces the shaking, improves the hoisting reliability, effectively guarantees the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 A three-dimensional structure schematic view of the utility model discloses a steel box girder segmented hoisting equipment of a river-crossing cable-stayed bridge is provided;
[0016] Fig. 2 A front view structure schematic view of the utility model discloses a steel box girder segmented hoisting equipment of a river-crossing cable-stayed bridge is provided;
[0017] Fig. 3 A hook assembly structure schematic view of the utility model discloses a steel box girder segmented hoisting equipment of a river-crossing cable-stayed bridge is provided.
[0018] In the drawing: 1, hook assembly;11, connecting frame;12, movable buckle;13, hook;14, bandage;15, connecting buckle;2, hoisting arm;3, cable pile;4, floating barge platform;5, hoist set;6, sling;7, cable;8, guide wire wheel set;9, tower;10, wire sheave shaft. DETAILED DESCRIPTION
[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative, and is by no means intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort, fall within the scope of the present application.
[0020] With reference to Figs. 1-3 The utility model provides a kind of cross river cable-stayed bridge steel box girder sectional hoisting equipment, including floating crane platform 4, winch unit 5 and sling 6, multiple cable piles 3 are provided on floating crane platform 4, for tethering rope stable stop ship, hoisting arm 2 is equipped on the upside of floating crane platform 4, hoisting arm 2 is rotatably connected between floating crane platform 4, hoisting arm 2 is obliquely arranged, for supporting suspension steel box girder, hoisting arm 2 bottom side is equipped with tower 9, tower 9 is obliquely arranged away from hoisting arm 2 direction, for improving hoisting arm 2 stability;
[0021] Hoisting arm 2 top end is connected with cable 7, winch unit 5 is equipped with winch corresponding with cable 7, one end of cable 7 is fixedly connected with hoisting arm 2 top end, the other end of cable 7 is connected with winch, cable 7 is retracted or extended by winch, changes the inclination angle of hoisting arm 2, cable 7 is equipped with wiring board, cable 7 is equipped with multiple groups, and is evenly arranged by wiring board, to reliably and stably pull hoisting arm 2, according to need, multiple cable 7 can be separated, multiple winches or locking devices are configured, cable 7 is fastened, and reliability and safety are improved;
[0022] Tower 9 top is equipped with wire guide wheel set 8, wire guide wheel set 8 is equipped with wire wheel, wire wheel is correspondingly with sling 6 and cable 7 respectively, tower 9 top is respectively resisted by sling 6 and cable 7 through wire wheel on wire guide wheel set 8 distribution, changes the direction of sling 6 and cable 7, simultaneously tensioning sling 6 and cable 7, ensures that cable 7 is stably dragged hoisting arm 2, and sling 6 stably hoists steel box girder;
[0023] Hoisting arm 2 top end is equipped with wire wheel shaft 10, and sling 6 and wire wheel shaft 10 are in sliding contact, wire wheel shaft 10 is used to change the direction of sling 6, so that it is vertically arranged, hoists steel box girder, wire wheel shaft 10 is at least provided with a group, one end of sling 6 is passed through wire wheel shaft 10, sling 6 is provided with multiple groups, and one end of sling 6 is passed through wire wheel shaft 10 as vertical segment, and sling 6 vertical segment is suspended and arranged in parallel, and is staggered and arranged in different planes;
[0024] When a group of wire wheel shaft 10 is arranged, multiple slings 6 are arranged separately, one end is passed through wire wheel shaft 10 from the upside or from the downside, to ensure that the vertical segments of multiple slings 6 are suspended in two strands and arranged in parallel on two planes.
[0025] Or set multiple groups of line wheel shaft 10, the vertical section of the multiple groups of sling 6 staggered distribution in multiple different planes, mutual restraint, reduce the sling 6 swing, improve the suspension stability, the sling 6 one end connection winch, provide hoisting power;
[0026] The top of the hoist arm 2 is connected with the hook assembly 1 through the sling 6, the hook assembly 1 is provided with at least two groups, the sling 6 is correspondingly provided with the hook assembly 1, the corresponding winch of the sling 6 is distributed according to the number of the hook assembly 1, each hook assembly 1 is controlled independently, so that the steel box girder can be hoisted stably and reliably, the hook assembly 1 comprises a connecting frame 11, a movable buckle 12 and a connecting buckle 15, one end of the sling 6 is connected with the connecting frame 11, a plurality of slings 6 are arranged on each connecting frame 11, and the plurality of slings 6 are arranged in parallel and staggered in different planes, so that the suspension stability is improved.
[0027] A traction device can be further arranged between the plurality of connecting frames 11, so as to ensure the stability between the connecting frames 11 and avoid large swing, thereby affecting the hoisting of the steel box girder, the traction device is a steel cable or an elastic rod, the movable buckle 12 is hinged between the connecting frame 11, the movable buckle 12 is connected with the connecting buckle 15 through the steel cable, the connecting buckles 15 on the two groups of hook assemblies 1 are separated, the steel box girder is fixed from both ends, the hook 13 or the binding belt 14 is arranged on the lower side of the connecting buckle 15, so as to adapt to different hoisting conditions, the binding belt 14 can also serve as a traction rope, so that the construction personnel can conveniently pull the hook assembly 1 and the steel box girder in a small range, adapt to the installation position, and improve the construction reliability and stability.
[0028] In the embodiment, according to the height of the steel box girder to be hoisted, the inclination angle of the hoist arm 2 is adjusted by controlling the cable 7 through the winch, the floating barge is moved close to the bridge, the hook assembly 1 is lowered by pulling the sling 6 through the winch, the steel box girder is fixed through the hook 13 or the binding belt 14, the angle of the movable buckle 12 is adjusted flexibly, the steel box girder is stably hoisted in cooperation with the steel cable and the connecting frame 11, the sling 6 is pulled upwards, the length in the vertical direction is shortened, the length of the suspension is limited, the angle of the hoist arm 2 is directly adjusted, the hoisting height of the steel box girder is reduced, the center of gravity is reduced, and large swing is avoided during the carrying process, the floating barge is moved, the steel box girder is transported to the vicinity of the bridge, the steel box girder is lifted by adjusting the hoist arm 2, the traction rope is pulled, and the construction of the cable-stayed bridge is completed on the river surface, the inclination angle of the hoist arm 2 and the length of the suspension of the sling 6 are changed, the swing problem of the steel box girder is improved, and the installation reliability and safety are improved.
[0029] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
[0030] It is also important to note that the term "exemplary" as used herein means "serving as an example, instance, or illustration," and should not necessarily be construed as preferred or advantageous over other examples. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0031] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present disclosure, unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the clarity of presentation and are shown exaggerated in relation to each other. Well-known techniques, methods, and devices can not be discussed in detail to avoid obscuring the present disclosure. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not limiting. Other examples of the exemplary embodiments can therefore have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, as such, detailed descriptions of these elements are not repeated in each drawing but are only described once with respect to one of the drawings.
Claims
1. A cross-river cable-stayed bridge steel box girder sectional hoisting equipment, comprising a floating crane platform (4), a hoist unit (5) and a sling (6), characterized in that, The floating crane platform (4) is provided with a lifting arm (2) on the upper side, the bottom side of the lifting arm (2) is provided with a tower (9), the top end of the lifting arm (2) is connected with a cable (7), and the cable (7) is provided with a wiring board; The top end of the lifting arm (2) is provided with a wire shaft (10), the top of the tower (9) is provided with a wire wheel set (8), one side of the top of the lifting arm (2) is connected with a hook assembly (1) through a sling (6), the wire wheel set (8) is provided with a wire wheel, and the wire wheel corresponds to the sling (6) and the cable (7) respectively, and the winch set (5) is provided with a winch corresponding to the sling (6) and the cable (7).
2. The equipment for hoisting and assembling the steel box girder of a cable-stayed bridge across a river in sections according to claim 1, characterized in that, The top of the tower (9) is abutted against the sling (6) and the cable (7) through the wire wheel set (8), and one end of the cable (7) is fixedly connected with the top end of the lifting arm (2).
3. The equipment for hoisting and assembling the steel box girder of a cable-stayed bridge across a river in segments according to claim 2, characterized in that, The cable (7) is provided with a plurality of groups and is uniformly arranged through the wiring board, and the other end of the cable (7) is connected with the winch.
4. The cross-river cable-stayed bridge steel box girder sectional hoisting device according to claim 1, characterized in that, One end of the sling (6) passes through the wire shaft (10) and is in sliding contact therebetween, the hook assembly (1) is provided with at least two groups, and the sling (6) is correspondingly arranged with the hook assembly (1). The sling (6) is provided with a plurality of groups, one end of the sling (6) passing through the wire shaft (10) is a vertical section, and the vertical sections of the slings (6) are arranged in parallel and are staggered in different planes.
5. The equipment for hoisting and assembling the steel box girder of a cable-stayed bridge across a river in sections according to claim 1, characterized in that, The hook assembly (1) comprises a connecting frame (11), a movable buckle (12) and a connecting buckle (15), one end of the sling (6) is connected with the connecting frame (11), and the movable buckle (12) is hingedly connected with the connecting frame (11).
6. The cross-river cable-stayed bridge steel box girder sectional hoisting device according to claim 5, characterized in that, The movable buckle (12) and the connecting buckle (15) are connected through a steel cable, and the connecting buckle (15) is provided with a hook (13) or a bandage (14) on the lower side.