Wind‐Induced Response of Structurally Asymmetric High‐Rise Buildings

The results of a comprehensive three‐dimensional dynamic analysis of structurally asymmetric high‐rise buildings subjected to stochastic wind forces are summarized. Random vibration theory is used to obtain the response statistics that are important for checking the serviceability of the building. Surface pressures measured in wind‐tunnel tests are analyzed to determine the spectra and cross spectra among the force components. The effects on building response of eccentricities in centers of rigidity and/or mass' and of the correlation among the force components are examined. A simple approach is proposed that could be used at the preliminary design stage to assess potential building vibration problems and to identify situations that warrant a more comprehensive treatment.