상세정보
Export to Refworks부가기능
Evolutionary Intensity Measures for More Accurate and Informative Evaluation of Liquefaction Triggering
상세 프로파일
| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Evolutionary Intensity Measures for More Accurate and Informative Evaluation of Liquefaction Triggering. |
| 개인저자 | Sideras, Samuel S. |
| 단체저자명 | University of Washington. Civil and Environmental Engineering. |
| 발행사항 | [S.l.]: University of Washington., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 746 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
| ISBN | 9781687956156 |
| 학위논문주기 | Thesis (Ph.D.)--University of Washington, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Kramer, Steven L. |
| 이용제한사항 | This item must not be sold to any third party vendors.This item must not be added to any third party search indexes. |
| 요약 | 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. |
| 일반주제명 | Civil engineering. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
