Horizontal rotation structure of ultra-large-tonnage asymmetric hybrid girder cable-stayed bridge and construction method thereof

Abstract

The invention relates to the bridge construction technique, specifically to a horizontal rotation structure of an ultra-large-tonnage asymmetric hybrid girder cable-stayed bridge and a construction method thereof. The horizontal rotation structure of the ultra-large-tonnage asymmetric hybrid girder cable-stayed bridge comprises a concrete foundation pile, a bearing platform, rotating disks and a rotation sliding rail, wherein the bearing platform is divided into an upper bearing platform and a lower bearing platform; the rotation sliding rail is divided into support legs and a slideway; the upper bearing platform is provided with an upper rotating disk and the support legs; the lower bearing platform is provided with a lower rotating disk, a position-fixing pin and the slideway; the upperrotating disk and the lower rotating disk are connected by the position-fixing pin; the upper rotating disk fits the lower rotating disk; and the support legs fit the slideway. The horizontal rotationstructure of the ultra-large-tonnage asymmetric hybrid girder cable-stayed bridge and the construction method have obvious effects on solving the problems of complex construction process and high construction costs of a horizontal rotation structure of a large-tonnage asymmetric hybrid girder cable-stayed bridge in the prior art, and have the advantages of simple construction procedures, high construction speed, safety, reliability and low construction costs.

Description

technical field [0001] The invention relates to bridge construction technology, in particular to a horizontal swivel structure and a construction method of a super-large-tonnage asymmetric composite girder cable-stayed bridge. Background technique [0002] A cable-stayed bridge is a structural system composed of towers under pressure, cables under tension and girders under bending. It has the characteristics of large spanning capacity, small girder height, and reasonable stress. Since the combination of steel and concrete can make full use of the properties of the material and improve the mechanical properties and improve the economy, hybrid girder cable-stayed bridges are increasingly favored by bridge builders. [0003] Hybrid girder cable-stayed bridge means that the main girder of the cable-stayed bridge is composed of two different materials along the length direction of the girder. . The hybrid girder cable-stayed bridge has a larger spanning capacity because its mai...

AI Technical Summary

Problems solved by technology

And solve the current problems of complex horizontal swivel construction process and high construction cost of large-tonnage, asymmetric mixed-girder cable-stayed bridges

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