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In-plane Inelastic Buckling Strength of Parabolic Arch Ribs Subjected Distributed Loading Along the Axis  

Yoon, Ki-Yong (선문대학교 토목공학과)
Moon, Ji-Ho (고려대학교 사회환경시스템공학과)
Kim, Sung-Hoon (고려대학교 사회환경시스템공학과)
Lee, Hak-Eun (고려대학교 사회환경시스템공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.5, no.1, 2005 , pp. 55-62 More about this Journal
Abstract
Parabolic arch ribs are widely used in practical. In case of circular arch ribs. Inelastic in-plane buckling behaviors were investigated by Trahair(1996). Recently Yong-lin Pi & Bradford(2004) investigated about in-plane design equation for circular arch ribs. In $1970{\sim}1980$. In-plane buckling strength about parabolic arch ribs were studied by some japan researchers (Sinke, Kuranishi). Study results of Sinke & kuranishi are only valid for rise-span ratio $0.1{\sim}0.2$. In this paper. The researchers investigated about in-plane inelastic buckling behaviors of parabolic arch ribs having rise-span ratio from 0.1 to 0.4. From the results. When the rise-span ratio increase, flexural moments increase and influence of axial force to in-plane buckling strength decrease. Finally, buckling curves for parabolic arch ribs subjected distributed loading along the axis were suggested.
Keywords
arch; in-plane buckling; inelastic analysis; buckling curve;
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