斜拉桥独塔施工状态风载内力的风洞试验研究  

Wind Tunnel Test Study on Wind-Induced Internal Force of a Cable-Stayed Bridge Tower

作　　者：何向东[1] 周述华[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《西南交通大学学报》2000年第5期471-474,共4页Journal of Southwest Jiaotong University

摘　　要：基于均匀流和紊流风场中的桥塔模型风洞试验所测得的桥塔空气力静力系数及塔顶抖振响应的位移均方根 ,采用线性叠加法及有限元法反演 ,给出设计风速下塔底控制截面的顺风向静风及抖振内力。Based on the static wind force factors of a tower and on the root mean square of the buffeting displacement responses of the tower top, which are measured by wind tunnel tests in laminar and turbulent field respectively, the static and buffeting internal forces of the tower bottom control sections under its design wind speed are obtained by linear superposition method and FEM.

关 键 词：斜拉桥 风洞试验 有限元法 独塔施工 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]