NUMERICAL STUDY ON COMPARISON BETWEEN DUCTILITY OF UNSTIFFENEE BOX SECTIONED STEEL STUB COLUMNS AND SIMPLY SUPPORTED STEEL PLATES

Abstract eng:
This study is aimed at grasping differences between ductility formulations of unstiffened box sectioned steel stub column subjected to bending moment and simply supported steel plates subjected to axial force. For this purpose, numerical model about steel stub column and simply supported steel plate were pre-pared. At first, ductility formula of simply supported steel plates subjected to axial load were developed. Secondary, strength and ductility as seismic performance were calculated, through numerical analysis subjected to between compression load and bending moment. As a result, it is found that strength of compression flange plate in steel stub column is 1.2 times of simply supported steel plate. However, it is required to carry out more numerical study, for investigating ductility of these structures. Finally, deformation shape of these structures were discussed.

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