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Three‐dimensional nonlinear soil–structure interaction for Rayleigh wave incidence in layered soils

Nguyen, Kien T. and Kusanovic, Danilo S. and Asimaki, Domniki (2022) Three‐dimensional nonlinear soil–structure interaction for Rayleigh wave incidence in layered soils. Earthquake Engineering and Structural Dynamics, 51 (11). pp. 2752-2770. ISSN 0098-8847. doi:10.1002/eqe.3700.

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We propose a methodology to analyze three-dimensional (3D) nonlinear soil–structure interaction (SSI) problems for Rayleigh (R) wave incidence in horizontally layered soils. The methodology comprises of two steps: (i) we calculate the free-field displacement histories of the layered soil subjected to incident R wave using thin-layer method (TLM) and (ii) we compute the effective input forces using domain reduction method (DRM) and simulate the responses of the structure and its vicinity using finite element analysis. Through a comprehensive verification study, we find good agreement with published research on SSI problems that implement boundary elements in the free-field; as well as on layered media problems with no structures that implement the propagator matrix technique and TLM. The agreement is consistently good for homogeneous and layered soils in 2D and 3D. Finally, we illustrate the capability of the methodology through a nonlinear analysis of a 12-story building on a two-layer soil overlaying a homogeneous halfspace, subjected to R wave incidence. The presented example highlights the influence of incident wave azimuth on measures of the building response, such as peak acceleration, inter-story drift ratio, and rocking motions.

Item Type:Article
Related URLs:
URLURL TypeDescription
Nguyen, Kien T.0000-0001-5761-3156
Kusanovic, Danilo S.0000-0002-0935-2577
Asimaki, Domniki0000-0002-3008-8088
Additional Information:© 2022 John Wiley & Sons Ltd. Issue Online: 08 August 2022; Version of Record online: 13 June 2022; Manuscript accepted: 31 May 2022; Manuscript revised: 17 May 2022; Manuscript received: 13 January 2022. Data Availability Statement: The data that support the findings of this study are available from the corresponding author upon reasonable request.
Subject Keywords:domain reduction method; finite element analysis; layered soils; Rayleigh wave; soil–structure interaction; thin-layer method; wave propagation
Issue or Number:11
Record Number:CaltechAUTHORS:20220708-315781900
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:115432
Deposited By: Tony Diaz
Deposited On:08 Jul 2022 23:17
Last Modified:13 Sep 2022 22:29

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