抗震结构的阻尼减振效果分析

Analysis of damping effect on vibration reduction of the aseismic structure

研究了抗震结构的阻尼减振效果。首先，考虑了单自由度体系在不同频率简谐干扰作用下阻尼比对结构反应的减小效果；然后，考虑了阻尼比对结构地震反应谱的影响，分析了我国现行建筑抗震设计规范反应谱，并讨论了不同阻尼比对水平地震影响系数的修正公式。

The damping effects on the vibration reduction of SDF system under harmonic excitation with different frequencies and on the seismic response spectra of the system are analyzed. The response spectra in current chinese seismic design code is expounded and an updating formula of the horizontal seismic coefficient for different damping ratios is discussed.