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《Journal of Vibration and Shock》 2015-22
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Inverse analysis of across-wind loads on super tall buildings

FANG Ming-xin;YANG Zhi-yong;ZHI Lun-hai;School of Civil Engineering & Architecture,Wuhan University of Technology;  
An effective inverse method was developed to estimate across-wind loads applied on a structure by using wind-induced responses. The Kalman filter and proper orthogonal decomposition( POD) technique were utilized for the inverse identification based on limited measured responses. The across-wind loads acting on a square shaped super tall building were estimated and compared with those determined by a wind tunnel test. The feasibility and accuracy of the method were examined. The results show that the time history and power spectra of across-wind loads obtained in the present research match well with the results of wind tunnel test. The accuracy of the estimated wind loads at different noise levels is acceptable in engineering practice. The presented results are valuable and referential to the design of super-tall buildings under wind storm or typhoon actions.
【Fund】: 国家自然科学基金项目(51208404 51478371);; 霍英东教育基金会资助项目(141074);; 武汉理工大学自主创新研究基金(155206004)
【CateGory Index】: TU973.213
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