Sectional dismantling method for cable-stayed hanging basket

Abstract

The invention discloses a segmental dismantling method for a cable-stayed hanging basket. The method comprises the following steps: 1, working before dismantling; 2, mounting a front suspender and replacing an anchoring middle suspender; 3, lowering the cable-stayed hanging basket for the first time; fourthly, the cable-stayed hanging basket is lowered for the second time, and a top plate formwork is dismantled; 5, dismounting a rear cross beam and a rear main longitudinal beam section of the hanging basket loading platform; 6, main longitudinal beam sections and front main longitudinal beam sections in the hanging basket load-carrying platform are dismantled; and 7, dismounting the front cross beam and the middle cross beam. The method is simple in step and reasonable in design, the whole cable-stayed hanging basket is decomposed into hanging basket assemblies to be disassembled and transported, the weight of the assemblies needing to be disassembled at a time is reduced, the bearing capacity of small and medium-sized ships in the mountainous river channel is met, and the problem that in the mountainous river channel, due to the large dead weight of the cable-stayed hanging basket, the cable-stayed hanging basket cannot be disassembled is solved. The problem that the whole water guy cable hanging basket cannot be lowered and dismantled due to the fact that no large bearing ship exists in a mountainous river channel is solved.

Description

technical field [0001] The invention belongs to the technical field of dismantling and assembling of a dragline hanging basket, and in particular relates to a segmental dismantling method of a dragline hanging basket. Background technique [0002] Cable-stayed bridges are often constructed using pull-cable hanging baskets. When installing pull-cable hanging baskets, the overall lifting method of ground assembly, the installation and lifting method of support platforms, and the overall lifting method of assembly and pontoon transportation outside the deep water field are commonly used. When the dragline basket is removed, the dragline basket is self-heavy (the single-leg hanging basket is at least 100t or more), especially for the load-bearing platform that uses the downward-type guyline basket. Under the main girder of the cable-stayed bridge, the high altitude cannot be directly dismantled by machinery. Generally, the whole is lowered to the ground or on the water vessel. ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a segmental dismantling method of the dragline hanging basket in view of the deficiencies in the above-mentioned prior art. The method has simple steps and reasonable design. Dismantling and transportation, reducing the weight of components that need to be dismantled at a time, meeting the load-bearing capacity of small and medium-sized ships in mountainous rivers, and solving the problem that the draglines and hanging baskets on the water in mountainous rivers are heavy and there are no large load-bearing ships. Overall decentralization and demolition

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