摘要
首先介绍一种高效的用于大跨度桥梁风致振动分析的风场模拟方法 ,在此基础上进一步给出大跨度桥梁抖振力和自激力时域表达式 .运用本文理论对香港汀九大桥进行了风场模拟和气动力计算 ,据此完成了大桥的抖振响应时程分析 .有关计算结果与风洞试验结果相当吻合 。
An efficient wind field simulation technique for wind_induced vibration analysis of long_span bridges is first introduced in this paper. On this basis, the time_domain expressions for the buffeting and self_excited forces acting on long_span bridges are further given. By using the above theory, the wind field and aerodynamic forces acting on the Hong Kong Ting Kau Bridge are obtained. The time_domain buffeting response analysis of the bridge shows that the analytic results are in good agreement with the experimental data. This indicates that the theory presented in this paper is applicable to engineering practice.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第10期81-87,共7页
Journal of South China University of Technology(Natural Science Edition)
基金
香港政府路政署及广东省自然科学基金资助项目 (980 6 34 )~~
关键词
大跨度桥梁
风场
气动力
时域法
long_span bridge
wind field
aerodynamic force
time_domain method
