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Wind and Structures
  Volume 14, Number 3, May 2011 , pages 239-252

Wind-induced responses of Beijing National Stadium

    The wind-induced mean, background and resonant responses of Beijing National Stadium are investigated in this paper. Based on the concepts of potential and kinetic energies, the mode participation factors for the background and the resonant components are presented and the dominant modes are identified. The coupling effect between different modes of the resonant response and the coupling effect between the background and resonant responses are analyzed. The coupling effects between the background and resonant components and between different modes are found all negligible. The mean response is approximately analogous to the peak responses induced by the fluctuating wind. The background responses are significant in the fluctuating responses and it is much larger than the resonant responses at the measurement locations.
Key Words
    background response; resonant response; mode participation coefficient; coupling effect; mode participation factor; stadium.
YANG Q.S.and TIAN Y.J. : School of Civil Engineering, Beijing Jiaotong University, Beijing 100044

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