CLASSIFICATION SYSTEM OF STRUCTURES FOR WIND-RESISTANT DESIGN
A number of methods for assessing wind-induced vibration of structures are available ranging from simplified procedure using quasi-static methods to the detailed procedure using statistical methods.The appropriate procedure should be selected in accordance with wind sensitivity of structures.The object of this paper is to provide an answer to the problem of how to distinguish between those structures for which can be treated by simple,possibly quasi-static,or more complex method for wind-resistant design.Based on the characteristic of wind-induced response according to different wind-sensitivity,a criterion is proposed to classify structures for wind-resistant design.Three categories are divided according to the characteristic of wind-indused response with different wind-sensitivity:insensitive structure,moderate sensitivity structure and sensitive structure.The boundary definitions between different categories were discussed emphasizely by means of the relationship between the extreme displacement response and the limited displacement response,together with the contribution of background response and resonant response to the fluctuating response.It lays a solid foundation for the further study of wind-induced response analysis with suitable methods for each category.The classification system is verified through the analysis of typical large-span roofs.The results indicate that the classification system for wind-resistant design based on the wind-sensitivity helps to clarify mechanism of wind induced response,propose nichetargeting wind-resistant analysis strategies,and establish the simplified-method for wind-resistant design with the same level of reliability.
Wind-resistant design wind-sensitivity classification system boundary definition
Jiansheng Zhang Yue Wu Di Wu Guangen Zhou
College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, P School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, P.R.China Zhejiang Southeast Space Frame Co.,L TD, Hangzhou 311209, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
556-559
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）