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Lumped - parameter models for impedance matrix of rigid rectangular foundations of the half-space

HOU Xing-min; LIAO Zhen-peng(Institute of Engineering Mechanics, China Seismological Bureau, Harbin 150080, China)  
Widespread and profound works are studied on structure-soil interaction both intheoretical and experimental fields for its importance and complication. Although the idea usingdiscrete models to represent unbounded soil has been put forward for a long time, littleapplication finds in practice for frequency-dependence of the introduced parameters. Thelumped-parameter models of the rigid rectangular foundation are obtained in this paper.Comparison between the lumped-parameter model solution and the accurate solution showsgood results achieved. And also the application of lumped-parameter models in soil-structureinteraction is discussed.
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