2005•Journal of Korean Society of Steel ConstructionRequires access
In-plane buckling strength of fixed arch ribs subjected vertical distributed loading
Jiho Moon, Kim Sung Hoon, Ki-Yong Yoon, Lee Hak Eun
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Abstract
When arch ribs are subjected to vertical loading, they may buckle suddenly towards the in-plane direction. Therefore, the designer should consider their in-plane stability. In this paper, the in-plane elastic and inelastic buckling strength of parabolic, fixed arch ribs subjected to vertical distributed loading were investigated using the finite element method. A finite element model for the snap-through and inelastic behavior of arch ribs was verified using other researchers' test results. The ultimate strength of arch ribs was determined by taking into account their large deformation, material inelasticity, and residual stress. Finally, the finite element analysis results were compared with the EC3 design code.