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http://dx.doi.org/10.5762/KAIS.2019.20.11.259

FE Analysis on the Structural Behavior of the Single-Leaf Blast-Resistant Door According to Design Parameter Variation  

Shin, Hyun-Seop (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Kim, Won-Woo (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Park, Gi-Joon (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Lee, Nam-Kon (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Moon, Jae-Heum (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Kim, Sung-Wook (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.11, 2019 , pp. 259-272 More about this Journal
Abstract
Steel-concrete single-leaf blast-resistant doors are protective structures consisting of a steel box and reinforced concrete slab. By the domestic blast-resistant doors, the structure is not designed efficiently because few studies have examined the effects of variables, such as the blast pressure, rebar ratio, and steel plate thickness on the structural behavior. In this study, the structural behavior of the doors was analyzed using the FE method, and the support rotation and ductility ratio used to classify the structural performance were reviewed. The results showed that the deflection changes more significantly when the plate thickness increases than when the rebar spacing is a variable. This is because the strain energy absorbed by the door is reduced considerably when the plate thickness increases, and as a result, the maximum deflection becomes smaller. According to a comparison of the calculated values of the support rotation and the ductility ratio, the structural performance of the doors could be classified based on the support rotation of one degree and ductility ratio of three. On the other hand, more explosion tests and analytical studies will be needed to classify the damage level.
Keywords
Blast-Resistant Door; Support Rotation; Ductility Ratio; Strain Energy; FEM;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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