Stochastic Vibration of Long-span Floor under Crowd-induced Rhythmic Excitation
Li Quan, Fan Jiansheng, Nie Jianguo
Department of Civil Engineering, Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University, Beijing 100084, China
Abstract：This paper investigates the dynamic characteristics of long-span floors under crowd-induced rhythmic excitation by using stochastic vibration approach combined with finite element method for modal analysis. For this purpose, a stochastic vibration modal accounting for the multi-modal floor resonance is developed, together with the rules to quantify rhythmic excitation frequencies and loading regions corresponding to specified floor modal resonance. Also, the parameter study on contact ration and floor damping ratio was proposed.
李泉;樊健生;聂建国. 人群节律性运动下大跨楼盖的随机振动问题研究[J]. , 2012, 31(24): 9-15.
Li Quan; Fan Jiansheng; Nie Jianguo. Stochastic Vibration of Long-span Floor under Crowd-induced Rhythmic Excitation. , 2012, 31(24): 9-15.
2012, Vol. 31 
