Construction Method of Transverse Translation and Positioning of Cable-Stayed Bridge

Abstract

The invention discloses a transverse movement in-position construction method of a cable-stayed bridge. The construction method comprises the steps such as manufacturing and mounting two continuous sliding systems, manufacturing and mounting two anti-overturning systems, assembling main tower structures and girder structures of a main structure of the cable-stayed bridge, dragging the main column structures and bearing structures on their two sides to the two continuous sliding systems by using a traction apparatus, positioning the two anti-overturning systems on two sides of the lower portion of the main structure of the cable-stayed bridge, and transversely moving the main structure of the cable-stayed bridge from a bridge assembly line to a bridge design line. The method has the advantages that the defects of existing cantilever construction method, vertical incremental launching construction method and rotation construction method are overcome, the risk of operation above railways and highways is lowered, the effect on existing buildings or structures under a bridge is maximally reduced, the span of the cable-stayed bridge is not necessarily enlarged so that unnecessary waste is reduced, segmental construction is not required either so that overall transverse movement of the cable-stayed bridge is continually finished in a short time, and thus construction progress and overall construction safety are improved.

Description

technical field [0001] The present invention relates to a construction method of a cable-stayed bridge, more specifically, the present invention relates to a construction method for transversally moving the cable-stayed bridge across existing roads, railways and the like. Background technique [0002] In recent years, with the rapid development of national transportation, more and more roads and railways cross each other at small angles. Cable-stayed bridges are more and more widely used because of their strong spanning ability, low building height and beautiful appearance. application. [0003] At present, the commonly used construction methods for cable-stayed bridges spanning highways and railways at home and abroad are cantilever pouring (assembly) method, longitudinal jacking method and swivel method. The disadvantages are: [0004] (1) Cantilever pouring (assembly) method: the main girder is constructed in sections, the construction period is long, and the operation t...

AI Technical Summary

Problems solved by technology

[0004] (1) Cantilever pouring (assembly) method: the main girder is constructed in sections, the construction period is long, and the operation time on the railway and highway is long, and the safety risk is high;

[0005] (2) Longitudinal jacking method: In addition to setting up temporary piers near railways and highways, a longer guide beam needs to be installed at the front end of the main beam, and the main beam needs to be assembled in sections, and the construction period is long

The main span of cable-stayed bridges is generally large. In order to maintain balance, it is necessary to increase the side spans of cable-stayed bridges when using the swivel method, resulting in unnecessary waste

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