EVALUATING MODEL UNCERTAINTY OF AN SPT-BASED SIMPLIFIED METHOD FOR RELIABILITY ANALYSIS FOR PROBABILITY OF LIQUEFACTION

NCUIR > Engineering College > Graduate Institute of Civil Engineering > journal & Dissertation > Item 987654321/26268

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26268

Title:	EVALUATING MODEL UNCERTAINTY OF AN SPT-BASED SIMPLIFIED METHOD FOR RELIABILITY ANALYSIS FOR PROBABILITY OF LIQUEFACTION
Authors:	Juang,CH;Fang,SY;Tang,WH;Khor,EH;Kung,GTC;Zhang,J
Contributors:	土木工程研究所
Keywords:	SEISMIC SOIL LIQUEFACTION;POTENTIAL EVALUATION;RESISTANCE;CPT
Date:	2009
Issue Date:	2010-06-29 17:09:36 (UTC+8)
Publisher:	中央大學
Abstract:	In this paper, an innovative procedure is developed for estimating the uncertainty of an empirical geotechnical model. Here, the Youd et al. (2001) method, a deterministic model for liquefaction triggering evaluation, is examined for its model uncertainty. The procedure for evaluating this model uncertainty involves two steps: 1) deriving a Bayesian mapping function based on a database of case histories, and 2) using the calibrated Bayesian mapping function as a reference to back-figure the uncertainty of the model. Details of the developed procedure within the framework of the first-order reliability method (FORM) are presented. Using FORM with the calibrated model uncertainty, the probability of liquefaction can be readily determined, and thus, the results presented in this paper extend the use of the Youd et al. (2001) method.
Relation:	SOILS AND FOUNDATIONS
Appears in Collections:	[Graduate Institute of Civil Engineering] journal & Dissertation

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