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http://dx.doi.org/10.7734/COSEIK.2014.27.6.493

Fragility Assessment of Agricultural Facilities Subjected to Volcanic Ash Fall Hazards  

Ham, Hee Jung (Department of Architectural Engineering, Kangwon National Univ.)
Choi, Seung Hun (Department of Architectural Engineering, Kangwon National Univ.)
Lee, Sungsu (School of Civil Engineering, Chungbuk National Univ.)
Kim, Ho-Jeong (Department of Architecture, Dankook Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.27, no.6, 2014 , pp. 493-500 More about this Journal
Abstract
This paper presents findings from the assessment of the volcanic ash fragility for multi-hazard resisting vinyl greenhouse and livestock shed among the agricultural facilities. The volcanic ash fragility was evaluated by using a combination of the FOSM (first-order second-moment) method, available statistics of volcanic load, facility specifications, and building code. In this study, the evaluated volcanic ash fragilities represent the conditional probability of failure of the agricultural facilities over the full range of volcanic ash loads. For the evaluation, 6 types(ie., 2 single span, 2 tree crop, and 2 double span types) of multi-hazard resisting vinyl greenhouses and 3 types(ie., standard, coast, and mountain types) of livestock sheds are considered. All volcanic ash fragilities estimated in this study were fitted by using parameters of the GEV(generalized extreme value) distribution function, and the obtained parameters were complied into a database to be used in future. The volcanic ash fragilities obtained in this study are planning to be used to evaluate risk by volcanic ash when Mt. Baekdu erupts.
Keywords
volcanic ash fragility; agricultural facility; FOSM method; GEV distribution function;
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Times Cited By KSCI : 2  (Citation Analysis)
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