Mode-based equivalent method for seismic response analysis of soil column

C. Li, Y. Yuan, J. Y. Yuan, H. T. Yu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper presents a mode-based equivalent method for seismic response analysis of soil column. The key to this method is the equivalence of modal properties between two linear systems. Four principles of mode equivalence are prescribed in terms of four modal properties which are independent of mode normalization. Based on this method, an equivalent Multi-Degree-Of-Freedom (MDOF) system is developed to idealize a soil column. Seismic response of the equivalent MDOF system is analytically derived through mode superposition method. The physical parameters of the equivalent MDOF system such as the mass, spring and damping constants, and the mass heights are formulated. The equivalent MDOF system is validated by comparing its seismic response with the solution of wave propagation. Results show that the proposed method can provide considerably accurate seismic response of soil column with few degrees of freedom.

Original languageEnglish
Title of host publicationMechanics of Structures and Materials
Subtitle of host publicationAdvancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016
EditorsChunwei Zhang, Hong Hao
PublisherCRC Press/Balkem
Pages721-726
Number of pages6
ISBN (Print)9781138029934
StatePublished - 2017
Externally publishedYes
Event24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 - Perth, Australia
Duration: 6 Dec 20169 Dec 2016

Publication series

NameMechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016

Conference

Conference24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016
Country/TerritoryAustralia
CityPerth
Period6/12/169/12/16

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