斜拉索索状态的精确计算  

Accurate Calculation of Cable State of Cable Stayed Bridge

作　　者：邵旭东[1] 张欣[1] 李立峰[1] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082

出　　处：《中南公路工程》2005年第1期33-35,43,共4页Central South Highway Engineering

摘　　要：介绍了计算斜拉索的 3种方法 :悬链线法、抛物线法和有限元法 ,推导了悬链线法弹性伸长的计算公式 ,推导出了斜拉索精确的计算公式。结合长沙洪山庙大桥实际施工中的挂索问题 ,运用 3种方法对 3根代表性的索进行了计算 ,分析了Three methods for cable calculation, that is, catenary method, parabola method and finite element method, are introduced in this paper. The formula of elastic stretching is derived for the catenary method, followed by the accurate formula for cable calculation. In conjunction with the practice of cable hanging in the construction of Hongshan Bridge, three representative cables are analyzed with the three methods. Finally, the advantages and disadvantages of the three methods are compared.

关 键 词：斜拉索 精确计算 状态 悬链线法 计算公式 有限元法 抛物线法 弹性伸长 代表性 优缺点 推导 挂索 大桥 

分 类 号：U448.27[建筑科学—桥梁与隧道工程] TU323.01[交通运输工程—道路与铁道工程]