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http://dx.doi.org/10.5762/KAIS.2016.17.9.724

Seismic Vulnerability Assessment of RC Frame Structures Using 3D Analytical Models  

Moon, Do-Soo (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)
Lee, Young-Joo (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)
Lee, Sangmok (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.9, 2016 , pp. 724-731 More about this Journal
Abstract
As the structural damage caused by earthquakes has been gradually increasing, estimating the seismic fragility of structures has become essential for earthquake preparation. Seismic fragility curves are widely used as a probabilistic indicator of structural safety against earthquakes, and many researchers have made efforts to develop them in a more accurate and effective manner. However, most of the previous research studies used simplified 2D analytical models when deriving fragility curves, mainly to reduce the numerical simulation time; however, in many cases 2D models are inadequate to accurately evaluate the seismic behavior of a structure and its seismic vulnerability. Thus, this study provides a way to derive more accurate, but still effective, seismic fragility curves by using 3D analytical models. In this method, the reliability analysis software, FERUM, is integrated with the structural analysis software, ZEUS-NL, enabling the automatic exchange of data between these two software packages, and the first order reliability method (FORM), which is not a sampling-based method, is utilized to calculate the structural failure probabilities. These tools make it possible to conduct structural reliability analyses effectively even with 3D models. By using the proposed method, this study conducted a seismic vulnerability assessment of RC frame structures with their 3D analytical models.
Keywords
3D frame structure; Fragility curve; Nonlinear dynamic analysis; Seismic vulnerability; Structural reliability analysis;
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Times Cited By KSCI : 3  (Citation Analysis)
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