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http://dx.doi.org/10.5000/EESK.2010.14.5.001

Nonlinear Seismic Response Analysis for Shallow Soft Soil Deposits  

Park, Hong-Gun (서울대학교 건축학과)
Kim, Dong-Kwan (서울대학교 건축학과)
Lee, Kyung-Koo (단국대학교 건축공학과)
Kim, Dong-Soo (한국과학기술원 건설및환경공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.5, 2010 , pp. 1-12 More about this Journal
Abstract
This study presents a finite element analysis method that can accurately evaluate the nonlinear behaviour of structures affected by shallow soft subsoils and the soil-structure interaction. A two-dimensional finite element model that consists of a structure and shallow soft subsoil was used. The finite element model was used for a nonlinear time domain analysis of the OpenSees program. A parametric study was performed to investigate the effects of soil shear velocities, earthquake input motions, soft soil depth, and soil-structure interaction. The result of the proposed nonlinear finite element analysis method was compared with the result of an existing frequency domain analysis method, which is frequently used for addressing nonlinear soil behavior. The result showed that the frequency domain analysis, which uses equivalent secant soil stiffness and does not address the soil-structure interaction, significantly overestimated the response of the structures with short dynamic periods. The effect of the soil-structure interaction on the response spectrum did not significantly vary with the foundation dimensions and structure mass.
Keywords
Finite element analysis; Soil-structure interaction; Response spectrum; Soft soil; Time domain analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 Lysmer, J. and Kuhlemeyer, R.L., “Finite Dynamic Model for Infinite Media,” Journal of the Engineering Mechanics Division, ASCE, 95 (EM4), 859-877, 1969.
2 김동수, 추연욱, “공진주 시험을 이용한 국내 비점토 지반의 동적변형 특성,” 한국지반공학회 논문집, Vol. 17, No. 5, 115-128, 2001.
3 Kwok, A.O.L., Stewart, J.P., Hashash, Y.M.A., Matasovic, N. Pyke, R. Wang, Z., and Yang, Z., “Use of Exact Solutions of Wave Propagation Problemes to Guide Implementation of Nonlinear Seismic Ground Response Analysis Procedures,” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 133, No. 11, 1385-1398, 2007.   DOI   ScienceOn
4 김용석, “구조물의 시간이력 지진해석을 위한 암반지진기록의 특성분석,” 한국지진공학회논문집, 제12권 1호, 89-95, 2008.   DOI
5 NEHRP, Improvement of Nonlinear Static Seismic Analysis procedures, FEMA 440, Part I(Provisions). and Part 2 (Commentary)., 2005.
6 Veletsos, A. S., Prasad, A. M., and Wu, W. H., “Transfer functions for rigid rectangular foundations.,” Earthquake Eng. Struct. Dyn., 26(1). 5-17, 1997.   DOI   ScienceOn
7 김용석, 구조물-지반 상호작용과 지진해석, 구미서관, 2005.
8 김용석, “건물의 수평방향 내진거동에 영향을 미치는 연약지반의 비선형성 영향,” 한국지진공학회논문집, 제5권 2호, 23-31, 2001.
9 NEHRP, Recommended Provisions for Seismic Regulation for New Buildings and Other Structures, FEMA 450, Part I(Provisions). and Part 2(Commentary)., 2003.
10 윤종구, 김동수, 방은석, “국내 지반특성에 적합한 지반분류 방법 및 설계응답스펙트럼 개선에 대한 연구(Ⅰ)-국내 내진설계기준의 문제점 분석,” 한국지진공학회논문집, 제10권 2호, 39-50, 2006.   DOI
11 윤종구, 김동수, 방은석, “국내 지반특성에 적합한 지반분류방법 및 설계응답스펙트럼 개선에 대한 연구(II)-국내 내진설계기준의 문제점 분석,” 한국지진공학회논문집, 제10권 2호, 51-52, 2006.   DOI
12 윤종구, 김동수, 방은석, “국내 지반특성에 적합한 지반분류 방법 및 설계응답스펙트럼 개선에 대한 연구(III)-국내 내진설계기준의 문제점 분석,” 한국지진공학회논문집, 제10권 2호, 51-52, 2006.
13 Kim, Y-S., and Roesset, J.M., “Effect of Nonlinear Soil Behavior on Inelastic Seismic Response of a Structure,” International Journal of Geomechanics, Vol. 4, No. 2, 104-114, 2004.   DOI   ScienceOn
14 Schnalbel, P.B., Lysmer, J. and Seed, H.B., SHAKE: a computer program for earthquake response analysis of horizontally layered sites, Report EERC 72-12, Earthquake Engineering Research Center, University of California, Berkeley, 1972.
15 Yoshida, N., Kobayash, S., Suetomi and I., Miura, K., “Equivalent linear method considering frequency dependent charateristics of stiffness and damping,” Soil Dynamics and Earthquake Engineering, Vol. 22, No. 3, 205-222, 2002.   DOI   ScienceOn
16 박두희, 정찬균, 곽동엽, “주파수와 변형률에 지배받는 등가선형 해석기법 개발 및 검증,” 한국지진공학회논문집, 제24권 12호, 113-120, 2008.
17 http://opensees.berkeley.edu/
18 PEER, Benchmarking of Nonlinear Geotechnical Ground Response Analysis Procedures, 2008.
19 Jeremic, B., Jie, G., and Tafaazoli, N., “Numerical Modeling and Simulations of a Complete Earthquake Soil Pile Bridge Seismic Performance,” 2009 International Foundation Congress and Equipment Expo, ASCE, 2009.
20 AIK, Korea Building Code-Structural, Architectural Institute of Korea, Seoul, Korea, 2009.
21 ICC, International Building Code, International Code Council, Country Club Hills, Illinois, 2006.