Multi-support point bridge rotation system and method for performing bridge rotation construction with same

Abstract

The invention relates to a multi-support point bridge rotation system and a method for performing bridge rotation construction with the same. The system comprises a lower bearing platform structure and a rotary table, a circular track is arranged on the lower bearing platform structure, multiple rolling carts are arranged on the circular track in a walking manner, each rolling cart comprises a bogie frame, a walking mechanism and support pillars arranged on the bogie frame, the support pillars support the rotary table commonly and are respectively connected with the corresponding bogie framesthrough hydraulic jacks, and loads borne by the corresponding support pillars are controlled through the hydraulic jacks. The rotary table above and a bridge to rotate are commonly supported through multiple support points, upper loads can be transferred to the support points uniformly, the support structure is stable and reliable, compressing the transverse dimensions of piers is not needed, andstructural stress and stability after completion of the bridge are improved; the loads borne by the support pillars can be adjusted through the jacks and are evenly borne by the support points, complex load variation during the rotation of the bridge is self-adaptive, and the anti-overturning capability during the rotation construction is improved.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a multi-support point bridge swivel system and a bridge swivel construction method using the multi-support point bridge swivel system. Background technique [0002] In recent years, with the speed up of existing railways and a large number of new high-speed railways put into operation, the railway department has higher and higher requirements for the safety of cross-railway bridge construction. Highway and urban road cross-railway viaducts generally adopt swivel construction, especially cross-railway bridges. When there are many railway tracks or railway yards, large-span bridge swivels are used. [0003] At present, the plane swivel of the bridge adopts the single spherical hinge swivel system, which has great limitations: [0004] (1) During the swivel process, the upper load is all borne by the ball joint, and the diameter of the ball joint increases w...

AI Technical Summary

Problems solved by technology

[0003] At present, the plane swivel of the bridge adopts the single spherical hinge swivel system, which has great limitations:

For bridges with a deck width greater than 30m, especially cable-stayed bridges, the transverse dimensions of the piers need to be compressed, which is not conducive to the mechanical properties of the whole bridge

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