Improved equivalent mass-spring model for seismic response analysis of two-dimensional soil strata

Chong Li; Yong Yuan; Pengfei He; Juyun Yuan; Haitao Yu

doi:10.1016/j.soildyn.2018.05.001

Improved equivalent mass-spring model for seismic response analysis of two-dimensional soil strata

Chong Li, Yong Yuan, Pengfei He, Juyun Yuan, Haitao Yu

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

This paper presents an improved development of the mass-spring model initially proposed by Okamoto and Tamura for seismic response analysis of two-dimensional soil strata. The new model is based on the mode equivalence method and is constructed as a two-dimensional equivalent multi-degree-of-freedom (MDOF) system. Physical parameters of the model are derived and formulated in terms of modal properties. Dynamic response of the model from inclined SH-waves is obtained and the accuracy and validity are confirmed by comparing with the solution of wave propagation. The improved model is further discussed through a performance comparison with the mass-spring model.

Original language	English
Pages (from-to)	198-202
Number of pages	5
Journal	Soil Dynamics and Earthquake Engineering
Volume	112
DOIs	https://doi.org/10.1016/j.soildyn.2018.05.001
State	Published - Sep 2018
Externally published	Yes

Keywords

Amplification
MDOF system
Mass-spring model
Mode equivalence
Seismic analysis

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10.1016/j.soildyn.2018.05.001

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title = "Improved equivalent mass-spring model for seismic response analysis of two-dimensional soil strata",

abstract = "This paper presents an improved development of the mass-spring model initially proposed by Okamoto and Tamura for seismic response analysis of two-dimensional soil strata. The new model is based on the mode equivalence method and is constructed as a two-dimensional equivalent multi-degree-of-freedom (MDOF) system. Physical parameters of the model are derived and formulated in terms of modal properties. Dynamic response of the model from inclined SH-waves is obtained and the accuracy and validity are confirmed by comparing with the solution of wave propagation. The improved model is further discussed through a performance comparison with the mass-spring model.",

keywords = "Amplification, MDOF system, Mass-spring model, Mode equivalence, Seismic analysis",

author = "Chong Li and Yong Yuan and Pengfei He and Juyun Yuan and Haitao Yu",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = sep,

doi = "10.1016/j.soildyn.2018.05.001",

language = "English",

volume = "112",

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T1 - Improved equivalent mass-spring model for seismic response analysis of two-dimensional soil strata

AU - Li, Chong

AU - Yuan, Yong

AU - He, Pengfei

AU - Yuan, Juyun

AU - Yu, Haitao

PY - 2018/9

Y1 - 2018/9

N2 - This paper presents an improved development of the mass-spring model initially proposed by Okamoto and Tamura for seismic response analysis of two-dimensional soil strata. The new model is based on the mode equivalence method and is constructed as a two-dimensional equivalent multi-degree-of-freedom (MDOF) system. Physical parameters of the model are derived and formulated in terms of modal properties. Dynamic response of the model from inclined SH-waves is obtained and the accuracy and validity are confirmed by comparing with the solution of wave propagation. The improved model is further discussed through a performance comparison with the mass-spring model.

AB - This paper presents an improved development of the mass-spring model initially proposed by Okamoto and Tamura for seismic response analysis of two-dimensional soil strata. The new model is based on the mode equivalence method and is constructed as a two-dimensional equivalent multi-degree-of-freedom (MDOF) system. Physical parameters of the model are derived and formulated in terms of modal properties. Dynamic response of the model from inclined SH-waves is obtained and the accuracy and validity are confirmed by comparing with the solution of wave propagation. The improved model is further discussed through a performance comparison with the mass-spring model.

KW - Amplification

KW - MDOF system

KW - Mass-spring model

KW - Mode equivalence

KW - Seismic analysis

UR - http://www.scopus.com/inward/record.url?scp=85047260248&partnerID=8YFLogxK

U2 - 10.1016/j.soildyn.2018.05.001

DO - 10.1016/j.soildyn.2018.05.001

M3 - Article

AN - SCOPUS:85047260248

SN - 0267-7261

VL - 112

SP - 198

EP - 202

JO - Soil Dynamics and Earthquake Engineering

JF - Soil Dynamics and Earthquake Engineering

ER -

Improved equivalent mass-spring model for seismic response analysis of two-dimensional soil strata

Abstract

Keywords

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