A nonlinear ground response analysis is conducted for the Niigata-ken Chuetsu-oki earthquake recorded at a free-field vertical array near the Kashiwazaki-Kariwa Nuclear Power Plant in Japan. A bidirectional site response analysis is carried out using LS-DYNA which allows user defined stress-strain relationships to dictate soil behavior subjected to dynamic loading. Dynamic soil behavior is characterized using a two-stage hyperbolic backbone curve implemented with modifications to consider the peak strength of soil layers as well as the strain at which the peak strength is fully mobilized. The effects of bidirectional input motions, strain rate, and the shape of the shear modulus degradation curves are investigated, and it is demonstrated that each factor can have a significant influence on the results.
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Research Article|
May 01, 2016
Improved Approach for Modeling Nonlinear Site Response of Highly Strained Soils: Case Study of the Service Hall Array in Japan
Ramin Motamed, M. EERI;
Ramin Motamed, M. EERI
a)
University of Nevada, Reno, 1664 N. Virginia St., Mail stop 258, Reno, NV 89557
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Kevin Stanton;
Kevin Stanton
a)
University of Nevada, Reno, 1664 N. Virginia St., Mail stop 258, Reno, NV 89557
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Ibrahim Almufti, M. EERI;
Ibrahim Almufti, M. EERI
b)
Arup, 560 Mission St., San Francisco, CA 94105
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Kirk Ellison;
Kirk Ellison
b)
Arup, 560 Mission St., San Francisco, CA 94105
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Michael Willford, M. EERI
Michael Willford, M. EERI
b)
Arup, 560 Mission St., San Francisco, CA 94105
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Ramin Motamed, M. EERI
a)
University of Nevada, Reno, 1664 N. Virginia St., Mail stop 258, Reno, NV 89557
Kevin Stanton
a)
University of Nevada, Reno, 1664 N. Virginia St., Mail stop 258, Reno, NV 89557
Ibrahim Almufti, M. EERI
b)
Arup, 560 Mission St., San Francisco, CA 94105
Kirk Ellison
b)
Arup, 560 Mission St., San Francisco, CA 94105
Michael Willford, M. EERI
b)
Arup, 560 Mission St., San Francisco, CA 94105
Publisher: Earthquake Engineering Research Institute
Received:
17 Dec 2014
Accepted:
20 Aug 2015
First Online:
04 Jun 2020
Online ISSN: 1944-8201
Print ISSN: 8755-2930
© 2016 Earthquake Engineering Research Institute
Earthquake Engineering Research Institute
Earthquake Spectra (2016) 32 (2): 1055–1074.
Article history
Received:
17 Dec 2014
Accepted:
20 Aug 2015
First Online:
04 Jun 2020
Citation
Ramin Motamed, Kevin Stanton, Ibrahim Almufti, Kirk Ellison, Michael Willford; Improved Approach for Modeling Nonlinear Site Response of Highly Strained Soils: Case Study of the Service Hall Array in Japan. Earthquake Spectra 2016;; 32 (2): 1055–1074. doi: https://doi.org/10.1193/121714eqs212m
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Index Terms/Descriptors
- acceleration
- arrays
- Asia
- case studies
- degradation
- dynamic loading
- dynamic properties
- earthquakes
- Far East
- faults
- finite element analysis
- ground motion
- Japan
- loading
- Niigata-ken Chuetsu-Oki earthquake 2007
- nuclear facilities
- peak ground acceleration
- power plants
- seismic networks
- seismic response
- soil mechanics
- soil profiles
- soil-structure interface
- strain
- strength
- stress
- structures
- two-dimensional models
Latitude & Longitude
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