Demolishing method for hanging basket of single cable plane cable-stayed bridge

Abstract

The invention discloses a demolishing construction method for a hanging basket of a single cable plane cable-stayed bridge. The demolishing construction method for the hanging basket of the single cable plane cable-stayed bridge comprises the following steps of (1) refitting the hanging basket; (2) moving the refitted hanging basket back to a planning position; and (3) demolishing the hanging basket. According to the technical schemes, on the basis of not changing the fact that an existing prestressed concrete continuous girder bridge mainly adopts hanging basket cantilever construction and under the condition of guaranteeing the water quality of the south-to-north water diversion project, a hanging basket truss, a suspension system and a walking system are refitted, so that the hanging basket is returned to the south-to-north water diversion river for demolishing; during single cable plane cable-stayed bridge construction on a across south-to-north water diversion truck canal by utilizing the demolishing construction method for the hanging basket of the single cable plane cable-stayed bridge, the hanging basket can be moved out of the truck canal for demolishing safely, rapidly and effectively, no sundries and impurities are fallen into the south-to-north water diversion river during the construction process, and the south-to-north water diversion water quality is not affected, and related state requirements for construction of a south-to-north water diversion bridge is met.

Description

technical field [0001] The invention relates to a construction method for removing hanging baskets of a single-cable-plane cable-stayed bridge, which belongs to the field of bridge construction. Background technique [0002] Hanging basket construction refers to the use of the hanging basket method when pouring cantilever beam bridges with large spans, and cantilever operations in sections on the spot. The hanging basket is a load-bearing structure that can slide or roll along the top of the beam. It is anchored and suspended on the front end beam section that has been constructed. The formwork, steel bars, and prestressed pipes of the next beam section are installed on the hanging basket, and concrete pouring After completing a stage cycle with prestressed tensioning and grouting, the hanging basket is moved forward and fixed, and the pouring of the next section is carried out, and the cycle is completed until the cantilever pouring is completed. However, in general cantil...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the hanging basket cannot be removed safely and effectively after closing the bridge in the bridge construction on the main canal of the South-to-North Water Diversion Project. , The construction method of removing the hanging basket of the single-cable cable-stayed bridge that successfully removes the hanging basket