Modal analysis method by response spectrum for complicated building structures under vertical earthquake action

作者：Zhiyong Yang · 发表于：Jianzhu jiegou xuebao · 年份：2009 · 研究领域：Structural Engineering and Vibration Analysis、Vibration and Dynamic Analysis、Civil and Geotechnical Engineering Research

Under vertical earthquake action,vertical shearing response may become prominent in most multi-storey or high-rise building structures,and the secondary resonance may be excited in large-span structures.In the vertical earthquake resistant design of building structures,the vertical shearing response occurring in shear wall to shear wall on shear wall to column or column to column should be attached importance to and the secondary resonance in large-span structures should be avoided purposely.The simplified method to calculate vertical earthquake response recommended in code is unable to calculate the secondary resonance and the vertical shearing response,but the modal analysis method by response spectrum can accurately calculate these effect.To provide a reasonable and effective tool for the vertical earthquake resistant design,the modal analysis method by response spectrum of vertical earthquake is implemented in the PMSAP program,which is a commercial computer software for seismic analysis and design of complicated multi-story or high-rise building structure.