Based on the assumption that with the upper part fixed the structure possesses classic normal modes, analysis procedure is deduced when the stracture is under earthquake excitation.
Based on the assumption that with the upper part fixed the structure possesses classic normal modes, analysis procedure is deduced when the stracture is under earthquake excitation.
基于上部结构固定时具有正则振型的假设下，推导下地震激励作用下，土－结构动力相互作用对基础隔震结构影响的频域模态分析的步骤。