东南大学学报（英文版）2009，Vol.25Issue(3)：372-375,4.
独柱塔空间缆索自锚式悬索桥主鞍座空间受力分析
Spatial structural analysis of main saddle for single tower spatial cable self-anchored suspension bridge
摘要
Abstract
Based on the engineering background of the Jiangxinzhou Bridge in Nanjing, issues related to the spatial main saddle of the self-anchored suspension bridge are studied.The refinement finite element model is established by the secondary development technology based on the platform of the general finite element program, and a reasonable load pattern is used in its spatial structural analysis, by which its path of force transference and stress distribution are obtained.Matched with the spatial main cable, the tangency point correction method is also discussed.The results show that the lateral wall stress of the saddle groove is higher than the stress within the wall due to the role of lateral forces in the finished bridge state; the horizontal volume force of the main cable can generate a gradient distributed vertical extrusion pressure on the saddle clamping device and the main saddle body; the geometric nonlinear effect of the self-anchored suspension bridge cable system in the construction process is significant, which can be reflected in the spatial tangent point position of the main cable with the main saddle changes a lot from free cable to finished cable.关键词
自锚式悬索桥/有限元/主鞍座/空间缆索/结构设计Key words
self-anchored suspension bridge/ finite element/ main saddle/ spatial cable/ structural design分类
交通工程引用本文复制引用
李建慧,李爱群,袁辉辉,李喜平..独柱塔空间缆索自锚式悬索桥主鞍座空间受力分析[J].东南大学学报（英文版）,2009,25(3):372-375,4.基金项目
The National High Technology Research and Development Program of China(863 Program) (No. 2006AA04Z416), the National Science Fund for Distinguished Young Scholars(No. 50725828). （863 Program）
