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Title:Estimation of Non-Linear Seismic Site Effects for Deep Deposits of the Mississippi Embayment
Author(s):Park, Duhee
Doctoral Committee Chair(s):Hashash, Youssef M.
Department / Program:Civil and Environmental Engineering
Discipline:Civil and Environmental Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Civil
Abstract:The second part of the thesis describes the probabilistic seismic hazard analysis with non-linear site effect performed in the ME to develop site coefficients. Current site coefficients, proposed in National Earthquake Hazard Reduction Program (NEHRP), are used with USGS hazard maps to develop site specific recommended response spectrum. The coefficients are developed for 30 m thick soil profile and do not account for the depth of the soil column. A suite of ground motion time histories are developed that in sum result in the same hazard level as USGS hazard maps. The generated motions are propagated through the generic profiles of the ME using DEEPSOIL. The results of the analyses are presented in the form of site coefficient as functions of (a) depth of the soil profile and (b) level of shaking (spectral accelerations at 0.2 and 1.0 sec, both at B/C boundary). The site coefficients are comparable to NEHRP coefficients for 30 m thick profiles, but they show significant depth dependence for thicker soil profiles. A wide range of depth dependent site coefficients is developed for the ME.
Issue Date:2003
Description:311 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003.
Other Identifier(s):(MiAaPQ)AAI3101943
Date Available in IDEALS:2015-09-25
Date Deposited:2003

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