A new seismic hazard analysis using FOSM algorithms

NCUIR > Engineering College > Department of Civil Engineering > journal & Dissertation > Item 987654321/100094

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/100094

Title:	A new seismic hazard analysis using FOSM algorithms
Authors:	王瑞斌;Wang, J.P.;Wu, Yih-Min
Contributors:	工學院土木工程學系
Keywords:	Algorithms;Assessments;Computer simulation;Earthquake design;Earthquake engineering;Estimating;FOSM algorithms;Seismic hazard;Seismic hazard assessment;Seismic phenomena;Strong ground motion;Taiwan
Date:	2014-12-01
Issue Date:	2026-04-21 13:48:56 (UTC+8)
Publisher:	Elsevier BV;Elsevier Ltd
Abstract:	摘要： From recent lessons, it is evident that earthquake prediction is immature and impractical as of now. Under the circumstances, seismic hazard analysis is considered a more practical approach for earthquake hazard mitigation, by estimating the annual rate of earthquake ground motions (or seismic hazard) based on seismicity and other geological evidences. Like other earthquake studies for the high-seismicity region around Taiwan, this study aims to conduct a new seismic hazard assessment for the region using the well-established FOSM (first-order second-moment) algorithm, on the record of 55,000 earthquakes observed in the past 110 years. The new seismic hazard analysis from a different perspective shows that the annual rate for earthquake-induced PGA to exceed the current design value (i.e., 0.23g) in two major cities in Taiwan should be relatively low, with it no greater than 0.0006 per year. Besides, the FOSM estimates were found very close to those with Monte Carlo Simulation (MCS), mainly because the skewness of the three random variables (i.e., earthquake magnitude, location, and model error) considered in the probabilistic analysis is not very large. •Apply to well-established FOSM algorithms to seismic hazard assessment.•Evaluate seismic hazard at two cities in Taiwan with earthquake statistics since 1900.•Current earthquake-resistant design in Taiwan should be robust based on the new seismic hazard assessment. 出版者： Elsevier Ltd 出版日期： 2014-12 出處： Soil dynamics and earthquake engineering (1984), 2014-12, Vol.67, p.251-256 資源來源： Elsevier ScienceDirect Journals 版權： 2014 Elsevier Ltd 識別號： ISSN: 0267-7261 識別號： EISSN: 1879-341X 識別號： DOI: 10.1016/j.soildyn.2014.10.006
Appears in Collections:	[Department of Civil Engineering] journal & Dissertation

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