An Efficient Method for Removing Arch Ring Buckle Cables

Abstract

The invention discloses an efficient method for dismantling the buckle cables of an arch ring. The method comprises the steps that: the line shape of the arch ring after the last sway bracing is installed and the line shape of the arch ring after all buckle cables are dismounted are obtained; the line shape of the arch ring after the last sway bracing is installed is compared with the line shape of the arch ring after all the buckle cables are removed, and a control point corresponding to the intersection point of the two line shapes is found out; the buckle cables are alternately removed fromtwo sides of the control point, and a plurality of buckle cable removing sequences are determined; and a buckle cable dismantling sequence of which the arch ring linear fluctuation range meets a requirement is selected. With the method of the invention adopted, under the condition that the requirement of the linear fluctuation range of the arch ring is met, the mode that the buckle cables of thearch ring are alternately dismantled one by one on the two sides of the control point replaces the traditional mode that the buckle cables are dismantled step by step and sequentially and circularly dismantled; the workload of the method is 1 / 9-1 / 7 of that of the traditional method; workload is small; the construction efficiency of the dismantling of the buckle cables is greatly improved, and construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to an efficient method for removing arch ring buckle cables. Background technique [0002] Arch bridges have the advantages of beautiful appearance, convenient construction, good economy and good mechanical performance. As far as the mechanical performance is concerned, under the action of vertical load, there are not only vertical reaction forces but also horizontal thrusts at the supports at both ends of the arch. [0003] Due to the effect of horizontal thrust, the bending moment of the arch ring is small, and the structure is mainly under compression. Therefore, arch bridges are mostly made of materials with good compression properties such as stone, concrete, and steel tube concrete, and are widely used in mountains, rivers and valleys. Existing arch bridge construction technologies mainly include support method, swivel method and cable hoisting cable-stayed buckle...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide an efficient method for removing the arch ring buckle in view of the problem that the traditional buckle cable removal method in the prior art has a very large workload.

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