自锚式悬索桥主缆无应力长度的计算分析研究  

Calculation Analysis and Study of Un-stressing Length of Main Cable for Self-anchored Suspension Bridge

作　　者：李子奇[1] 樊燕燕[1] 

机构地区：[1]兰州交通大学,甘肃兰州730070

出　　处：《城市道桥与防洪》2007年第12期91-94,共4页Urban Roads Bridges & Flood Control

摘　　要：该文基于悬链线计算分析理论,将自锚式悬索桥空缆状态,简化为受沿弧长均布的自重荷载与吊索处集中力作用的柔性索,对成都市清水河自锚式悬索桥主缆的无应力长度进行了计算分析。可为类似的桥梁设计和施工提供参考。Based on the catenary calculation analysis theory, the article simplifies the open cable state of self-anchored suspension bridge into the flexible cable born by the deadweight load equally distributed along the arc length and the force action centralized at the suspended cable, and calculates and analyzes the un-stressing length of the main cable for the self-anchored suspension bridge of Clearing Water River in Chengdu City, which can be referred for the design and construction of the similar bridges.

关 键 词：悬链线 自锚式悬索桥 空缆状态 主缆 无应力长度 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]