摘要
通过对钢筋混凝土框架在几条实际地震波作用下非线性动力响应的比较 ,指出非局部化的频谱(如反应谱或功率谱 )对地震波某些特性的反映不够全面 ,据其控制结构在弹塑性时程分析中的选波 ,可能影响选波的合理性 ,由此引入小波分析和局部谱 。
The comparison of some nonlinear responses of a reinforced concrete frame excited by actual earthquake waves is performed in the paper. It is worth to notice that a non?localized spectrum, such as response spectrum or power spectrum, can not reflect some characteristics of earthquake waves completely If some waves for time?history analysis are selected by these spectra, it will reduce reasonability of the selected waves The wavelet transform is a new mathematical tool with a localization resolve ability in time and frequency domain It is widely applied in both theory domains and practical fields The local spectra based on the wavelet transform are good at capturing the local characters of some earthquake waves Thus wavelet transform and local spectra are introduced to improve identifying characteristics of the selected waves
出处
《土木工程学报》
EI
CSCD
北大核心
2001年第4期78-82,共5页
China Civil Engineering Journal
关键词
钢筋混凝土
框架
反应谱
功率谱
地震波
非线性响应
nonlinear analysis, response spectrum, power spectrum, wavelet transform, local spectrum
