Abstract:Research purposes : With the height and ratio increasing,material being low-weight and high-strength, structure system being complex,super - tall building always suffer acute swing under typhoons. So it is extraordinary importance to choose design parameters,forecast structure response,reinforce data of modal parameters,verify design veracity that time-frequency analysis of dynamic responses for super - tall buildings under typhoons.
Research conclusions : By resorting to full-scale measurements of typhoon effects on a super-tall building,the dynamic characteristics of the super - tall building can be obtained with the measured data. Meanwhile,an evaluation may be carried out on the reliability of typhoon - induced responses. The time - frequency analysis methods of typhoon - induced responses of super -tall buildings mainly include the Fourier transform,wavelet transform,and Hilbert-Huang transform (HHT). This paper demonstrates 3 methods mentioned above in detail to summarize their advantages and disadvantages and to further prospect the trends of future researches in this domain.
顾远生,李春祥,李锦华. 台风作用下超高层建筑动力响应的时频分析[J]. 铁道工程学报, 2008, 25(7): 94-97.
GU Yuan-sheng,LI Chun-xiang,LI Jin-hua. Time - frequency Analysis of Dynamic Responses for Super - tall Buildings under Typhoons. 铁道工程学报, 2008, 25(7): 94-97.
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