【摘要】 论述了在地脉动对结构物的环境激励条件下，进行结构物地脉动响应测量的试验原理及方法，提出了固有频率识别与振型识别的互补较正法．通过对实际楼房结构的地脉动响应测量识别结构的模态参数．识别结果表明该理论及试验方法行之有效．更多还原

【Abstract】 The theory and method for ground microtremor experiment of building structures are discussed. An inter revising method (IRM) on identifying the modal frequencies and mode shapes is presented. The structural modal parameters of a five story building are identified by IRM based on power spectrum density analysis. The results show that the theory and the experimental method are effective.更多还原