Integrated hoisting method for corrugated steel web part

Abstract

The invention discloses an integrated hoisting method for a corrugated steel web part. The method includes the following steps that a hanging basket is moved forward in place on the N-1th corrugated steel web section of a corrugated steel web PC box girder bridge, so that the bottom of the hanging basket is fixed to the N-1th corrugated steel web section, and the top of the hanging basket protrudes out of the front end of the N-1th corrugated steel web section; precast splicing of the Nth corrugated steel web section is completed in a factory, the Nth corrugated steel web section is composed of a plurality of longitudinal corrugated steel webs, and the corrugated steel webs are fixedly connected with transverse steel cross beams and temporary supporting and reinforcing devices; by means of a flat plate barge, the Nth corrugated steel web section is conveyed to the position under the design position; by means of a hoisting system located on the top of the hanging basket, the Nth corrugated steel web section is hoisted in place, and the Nth corrugated steel web section and the N-1th corrugated steel web section are connected. The integrated hoisting method has the advantages that the construction period is effectively shortened, construction quality is improved, and aloft work time is shortened.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to an integral hoisting method for corrugated steel web parts. Background technique [0002] PC composite box girder with corrugated steel web is a new type of bridge that is economical, efficient, and easy to construct. Flange plate confinement improves structural performance and increases material efficiency. The research on PC box girder bridges with corrugated steel webs started relatively late in China, and more than 30 PC box girder bridges with corrugated steel webs have been built, most of which are girder bridges. In recent years, with the maturation of theoretical research and continuous accumulation of practical experience, PC box girders with corrugated steel webs have begun to be used in long-span single-box multi-chamber continuous girder bridges and cable-stayed bridges. In the construction of PC box girder bridges with corrugated steel webs, ...

AI Technical Summary

Problems solved by technology

In the construction of PC box girder bridges with corrugated steel webs, the block hoisting method is generally used to complete the hoisting operation of corrugated steel webs. This block hoisting method greatly prolongs the construction period and increases the time for working at heights, and it is difficult to ensure the welding quality of corrugated steel webs. , the disadvantages of PC box girder bridges with long-span and ultra-wide single-box multi-chamber corrugated steel webs are particularly prominent

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