(哈尔滨工业大学土木工程学院  150090)
【提要】  采用随机模拟时程分析方法，对Kiewitt66型单层球面网壳结构的风振性能进行了系统的参数分析，考察了几何、气动、结构等参数变化对结构风振响应规律的影响。通过对计算结果的进一步统计处理，给出了可供该类结构抗风设计参考的风振系数拟合公式。研究结果表
明，该类结构的风振响应规律性较好，风振系数取值为3.0左右。
【关键词】  网壳结构  风振响应  随机模拟时程分析  风振系数
Study on Windinduced Vibration of Singlelayer Spherical Reticulated Shell Structures/Zhang Jiansheng,Wu Yue,Shen Shizhao(Harbin Institute of Technology,Harbin 150090,China)
Abstract:Systematic parameter analysis of windinduced response of Kiewitt66 type singlelayer spherical reticulate shells structures has been performed using random simulation method in time domain.The effects of geometric parameters，structural parameters and aerodynamic parameters on windinduced response are generalized.Moreover,a linear regression expression of the windinduced vibration coefficient is obtained,which can be used for the reference of the windresistance design of reticulated shell structures.In the end,the windinduced vibration coefficient is approximately 30 as result.
Keywords:reticulated shell structures；windinduced response；random simulation;time domain；vibration coefficient
*国家自然科学基金重点项目(50078018)资助。