Process method for construction of steel-structured suspension bridge and light type cable carrying crane specially used in same

Abstract

The invention provides a process method for the construction of a steel-structured suspension bridge and a light type cable carrying crane specially used in the same, wherein the process flow comprises the steps of construction preparation, assembly of the light type cable carrying crane, the positioning and debugging of the light type cable carrying crane, the positioning of a ship carrying steelbeams, the lifting of the steel beams up to the hoisting point, the descent of a lifting device, the bolting connection of the lifting device and the steel beams, the first stage lifting of the steelbeams, the 30-percent load detection, the 70-percent load detection, the 100-percent load detection, the horizontal adjustment of the steel beams, the second stage lifting of the steel beams, the positioning of the steel beams and boiling connection of a lifting rod, the assembly of a security device, the lifting of the light type cable carrying crane, the movement positioning of the light type cable carrying crane; and the special light type cable carrying crane consists of a load-bearing mechanism, a load-lifting mechanism, a traveling mechanism, an anchoring mechanism and a weight-balancing beam. The process method and the special light type cable carrying crane have the advantages of light weight, simple structure, easy processing, convenient assembly and disassembly, no waterway occupation, big free space brought to transport barges and waterway traffic, high flexibility and maneuverability, high lifting speed, low construction cost, low labor intensity of workers and the suitability for the construction of the suspension bridge.

Description

technical field [0001] The invention relates to a construction method of a suspension bridge and a special hoisting machine thereof, in particular to a construction method of a steel structure suspension bridge and a special light cable-loaded crane. Background technique [0002] In the construction of suspension bridges, the hoisting of steel girders is the key to complete the bridge. Currently commonly used hoisting methods: one is to use floating hoisting, but because of its high height and heavy weight of steel truss beams, it is generally difficult to solve the problem with floating hoisting; the other is to use a cable-mounted crane for hoisting. During the construction of large-scale suspension bridges in China, the hoisting of stiffening beams mostly adopts hydraulic hoisting span cranes, which are characterized by stable hoisting and large lifting tonnage, but the cost is high. Contents of the invention [0003] The purpose of the present invention is to provide ...

AI Technical Summary

Problems solved by technology

Currently commonly used hoisting methods: one is to use floating hoisting, but because of its high height and heavy weight of steel truss beams, it is difficult to solve the problem with general floating hoisting; the other is to use a cable-loaded crane for hoisting

During the construction of domestic large-scale suspension bridges, the hoisting of stiffening beams mostly adopts hydraulic hoisting span cranes, which are characterized by stable hoisting and large lifting tonnage, but the cost is high

Images