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Abstract

This article presented a method that c ombined the forward-back analysis method and the difference iteration method to solve the initial cable tension according to the state of a built bridge for an arch bridge.Given the known target state of the bridge,a reasonable set of initial cable tensions was determined as the initial value of iteration by the forward-back method.These initial tensions were then applied to the calculation model based on the actual construction process.Through the difference iteration method,the initial cable tensions were optimized.The results show that the method can effectively determine the final cable tension that meets engineering precision requirements,significantly saving computation time.The article provides two bridge examples to illustrate the implementation process of the method in practical engineering applications,obtaining a set of cable tensions that meet the desired requirements and validating the effectiveness of the method.The method can be widely applied to the determination of initial cable tensions in various types of bridges.

Publication Date

12-24-2025

DOI

10.14048/j.issn.1671-2579.2025.06.017

First Page

146

Last Page

158

Submission Date

December 2025

Reference

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