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008200131s2019 ||||||||||||||||| ||eng d
020 ▼a 9781687956156
035 ▼a (MiAaPQ)AAI22621069
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 624
1001 ▼a Sideras, Samuel S.
24510 ▼a Evolutionary Intensity Measures for More Accurate and Informative Evaluation of Liquefaction Triggering.
260 ▼a [S.l.]: ▼b University of Washington., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 746 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 ▼a Advisor: Kramer, Steven L.
5021 ▼a Thesis (Ph.D.)--University of Washington, 2019.
506 ▼a This item must not be sold to any third party vendors.
506 ▼a This item must not be added to any third party search indexes.
520 ▼a Soil liquefaction is a seismic hazard that can have a devastating effect on the stability of buildings, bridges, dams, and other critical infrastructure elements. Accurate evaluation of liquefaction hazards requires accurate evaluation of the potential for triggering of liquefaction, and its effects. A recently developed framework for evaluation of liquefaction hazards considers the timing of the liquefaction process, and requires consideration of the response of liquefiable soils to transient loading histories - an aspect of behavior of liquefiable soils that has not previously been quantified. The development of this framework served as the motivation for the current study.Specifically, the goal of this study was to evaluate evolutionary intensity measures, or measures of the earthquake loading that build up with time over the duration of the ground motion, for prediction of the initiation of liquefaction. This represents the critical first step in the timing-based framework. This study used both cyclic simple shear and centrifuge testing to systematically investigate the response of liquefiable soils to fully transient earthquake loading histories. The results of these tests were used to evaluate the efficiency of evolutionary intensity measures that are typically associated with the initiation of liquefaction.In addition, observations from these tests identified key aspects of an earthquake loading history that are closely related to the generation of excess pore pressure and the initiation of liquefaction. These observations were used to develop a new evolutionary intensity measure that was able to predict the pore pressure response from the laboratory test programs more efficiently than existing intensity measures. The insights that were generated by this study offer the potential to dramatically reduce the uncertainty in the prediction of the initiation of liquefaction as compared to the conventional procedures used in current design practice.
590 ▼a School code: 0250.
650 4 ▼a Civil engineering.
690 ▼a 0543
71020 ▼a University of Washington. ▼b Civil and Environmental Engineering.
7730 ▼t Dissertations Abstracts International ▼g 81-04B.
773 ▼t Dissertation Abstract International
790 ▼a 0250
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15493780 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK