Suspension bridge high-low displacement beam trestle hoisting steel beam facility and construction method thereof

Abstract

The invention belongs to the technical field of bridge construction, and particularly relates to a suspension bridge high-low displacement beam trestle hoisting steel beam facility and a construction method thereof. The facility comprises a pier side bracket, beam moving trestles and winches; the pier side bracket is erected on a pier; the beam moving trestles are erected on a river bank; the winches are arranged on piers and below the beam moving trestles. The construction method comprises the steps of 1) carrying out infrastructure construction; 2) transporting and installing beam sections in a river surface area; 3) transporting and transferring the first platform beam section; 4) transferring the first platform beam section again; 5) the first platform beam section being in place; 6) placing the beam sections corresponding to platforms under the design positions of the platforms respectively; and 7) lifting the beam sections on sliding rails, and carrying out erecting and assembling. The facility and the method are small in steel consumption, convenient to construct, high in construction speed, stable in structure, low in safety risk and capable of greatly reducing labor, improving efficiency, shortening the construction period and saving cost in practical application.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a suspension bridge high and low displacement girder trestle hoisting steel girder facility and a construction method thereof. Background technique [0002] Generally, when the main suspension bridge spans the river with steep terrain and wide shoals, a single-layer high-displacement beam support is generally used in China, and the construction time of the main beam is arranged during the flood period or when the normal water level is used to slide the support close to the river center side. Dredging the bottom of the river to ensure the draft of the beam transporting barge, the construction process is simple, but the amount of steel used for the beam moving bracket is huge, the dredging time is long, time-consuming and labor-intensive, and the construction cost is high; [0003] During the construction of suspension bridges, the mountains on both sides of...

AI Technical Summary

Problems solved by technology

In the construction process of this method, the amount of steel is large, the dredging time is long, the water level is greatly affected, the construction period is long, and the construction cost is high. Therefore, it is urgent to study a fast construction, low cost, convenient and reliable new structure and construction method.

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