Process for integrally assembling multilayer steel anchor beams of main towers of cable-stayed bridges

Abstract

The invention relates to a process for integrally assembling multilayer steel anchor beams of main towers of cable-stayed bridges. The process includes integrally assembling the multilayer steel anchor beams in factories; secondarily pre-assembling the multilayer steel anchor beams under the matching effects of positioning connecting plates. The process has the advantages that the multilayer steelanchor beams are integrally assembled in the factories, accordingly, the time can be saved during hoisting and general assembling, the process can be carried out under safe working conditions, and the field general assembling mounting precision can be guaranteed against being affected by mounting environments such as monsoon on sea surfaces; the multilayer steel anchor beams only need to be locked by high-strength bolts and accordingly can be easily and safely hoisted; problems of general assembling in the factories can be timely discovered and timely solved, accordingly, the inconvenience infield modification can be prevented, and workload can be reduced.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to an overall assembly process of multi-layer steel anchor beams for the main tower of a cable-stayed bridge. Background technique [0002] A cable-stayed bridge is a bridge whose deck system is under compression and its support system is under tension. The deck system is composed of stiffened beams, and its support system is composed of steel cables. Since the Stromsun Bridge in Sweden opened the prelude to the construction of modern cable-stayed bridges in 1956, with the development of material science and computer science, a large number of cable-stayed bridges have been built at home and abroad, and their spans are gradually increasing. Cable-stayed bridges develop rapidly due to their large spanning capacity, good structural performance, simple construction, easy maintenance, low cost and light and beautiful appearance. The main feature of the cable-stayed bridge is to use t...

AI Technical Summary

Problems solved by technology

[0007] In the above construction process, in the process of assembling the steel anchor beam, it still needs to transport the steel anchor beam to the site of the main tower and then assemble it. In this way, it will be affected by the installation environment such as the sea surface during the assembly process. Influenced by monsoons, etc., there are potential safety hazards during hoisting, and hoisting is not convenient; and if there is a problem with the installation at the main tower site, subsequent modification will be troublesome and the workload will be heavy; in addition, during the installation process Among them, the installation accuracy needs to be realized with the cooperation of assembled tire frame, cable tower installation platform, etc., which is very troublesome, and it is also necessary to make a specific tire frame, which increases the time-consuming

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