New algorithm of shape-finding of suspension bridge with spatial cables  

作　　者：Xiao-Kang Deng Zhuo Deng Xin Ren 

机构地区：[1]School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430081,China [2]North China Branch of China Construction Eighth Engineering Bureau Co.,Ltd.,Tianjin,300450,China

出　　处：《Theoretical & Applied Mechanics Letters》2023年第1期33-40,共8页力学快报（英文版）

摘　　要：A new algorithm is proposed to solve the problems of shape-finding of suspension bridge with spatial cables what include tedious iteration,slow convergence speed and even no convergent under some circumstances.In this paper,the stress analysis of the main cable is carried out,and the relationship between the slope change and the coordinate change is found.This paper also discussed how to find the minimum slope point of symmetrical or asymmetric main cable,and the deformation compatibility equation is established and solved to obtain the shape of main cable.The algorithm in this paper can ensure the convergence of the solution for the suspension bridge with spatial cables.The calculation accuracy is high through the demonstration of the calculation examples.

关 键 词：Spatial cables Suspenders Shape-finding Slope of cable Coupling Unequal height main tower 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]