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http://dx.doi.org/10.5000/EESK.2016.20.7.485

Collapse Probability of a Low-rise Piloti-type Building Considering Domestic Seismic Hazard  

Kim, Dae-Hwan (Nabih Youssef Associates Structural Engineers)
Kim, Taewan (Department of Architectural Engineering, Kangwon National University)
Chu, Yurim (Department of Architectural Engineering, Kangwon National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.20, no.7_spc, 2016 , pp. 485-494 More about this Journal
Abstract
The risk-based assessment, also called time-based assessment of structure is usually performed to provide seismic risk evaluation of a target structure for its entire life-cycle, e.g. 50 years. The prediction of collapse probability is the estimator in the risk-based assessment. While the risk-based assessment is the key in the performance-based earthquake engineering, its application is very limited because this evaluation method is very expensive in terms of simulation and computational efforts. So the evaluation database for many archetype structures usually serve as representative of the specific system. However, there is no such an assessment performed for building stocks in Korea. Consequently, the performance objective of current building code, KBC is not clear at least in a quantitative way. This shortcoming gives an unresolved issue to insurance industry, socio-economic impact, seismic safety policy in national and local governments. In this study, we evaluate the comprehensive seismic performance of an low-rise residential buildings with discontinuous structural walls, so called piloti-type structure which is commonly found in low-rise domestic building stocks. The collapse probability is obtained using the risk integral of a conditioned collapse capacity function and regression of current hazard curve. Based on this approach it is expected to provide a robust tool to seismic safety policy as well as seismic risk analysis such as Probable Maximum Loss (PML) commonly used in the insurance industry.
Keywords
Collapse Probability; Piloti-type building; Seismic Hazard; Fragility; Risk-based assessment; Incremental Dynamic Analysis;
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Times Cited By KSCI : 5  (Citation Analysis)
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