In this paper, complex modal analysis for dam-foundation interaction problem in time domain is presented, and effects of dam-foundation interaction on modal characteristics of the dam are discussed.

• 本文提出在时域内分析水坝与地基动力相互作用问题的复模态分析方法,讨论了水坝与地基动力相互作用对水坝模态特性的影响。