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Seismic response of buried reservoir structures: a comparison of numerical simulations with centrifuge experiments

Seylabi, E. Esmaeilzadeh and Jeong, C. and Dashti, S. and Hushmand, A. and Taciroglu, E. (2018) Seismic response of buried reservoir structures: a comparison of numerical simulations with centrifuge experiments. Soil Dynamics and Earthquake Engineering, 109 . pp. 89-101. ISSN 0267-7261. http://resolver.caltech.edu/CaltechAUTHORS:20180327-111300790

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Abstract

Centrifuge experiments on seismic performance of relatively stiff underground reservoir structures in dry sand are modeled numerically. The capabilities of numerical simulations with calibrated equivalent linear soil properties in capturing the main features of experimentally measured responses are explored for both low and high amplitude earthquake motions. The scattering effects of the centrifuge container boundaries are also investigated by modeling the same soil deposit resting on an elastic bedrock and extending infinitely laterally, using the domain reduction method. It is observed that the calibrated equivalent linear soil models perform well in predicting accelerations, racking, and bending strains on the buried structure, even for high amplitude motions for which significant soil nonlinearity is expected. While not as accurate, the seismic lateral earth pressures predicted with these models are in fair agreement with direct measurements made with tactile sensors. The mismatches in earth pressures are likely due to local nonlinearities of soil and frictional contact, which were absent from the numerical models. It is also observed that the scattering effects of the container boundaries become more significant closer to the soil surface, and their characteristics are seen to depend on both the side boundaries and the embedded structure's stiffness.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.soildyn.2018.03.003DOIArticle
https://www.sciencedirect.com/science/article/pii/S0267726116302019PublisherArticle
Additional Information:© 2018 Elsevier Ltd. Received 29 August 2016, Revised 31 October 2017, Accepted 4 March 2018, Available online 16 March 2018.
Subject Keywords:Soil-structure interaction; Underground reservoir structures; Centrifuge testing; Equivalent linear soil; Domain reduction method; Perfectly matched layer; Principal component analysis
Record Number:CaltechAUTHORS:20180327-111300790
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180327-111300790
Official Citation:E. Esmaeilzadeh Seylabi, C. Jeong, S. Dashti, A. Hushmand, E. Taciroglu, Seismic response of buried reservoir structures: a comparison of numerical simulations with centrifuge experiments, Soil Dynamics and Earthquake Engineering, Volume 109, 2018, Pages 89-101, ISSN 0267-7261, https://doi.org/10.1016/j.soildyn.2018.03.003. (http://www.sciencedirect.com/science/article/pii/S0267726116302019)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85457
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Mar 2018 18:17
Last Modified:27 Mar 2018 18:17

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