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Strength Evaluation of Steel Box Beam-to-Column Connections with Axial Load  

Hwang, Won Sup (인하대학교 토목공학과)
Park, Moon Su (인하대학교 대학원 토목공학과)
Kim, Young Pil ((주)코퍼레이션 구조부)
Publication Information
Journal of Korean Society of Steel Construction / v.19, no.1, 2007 , pp. 117-127 More about this Journal
Abstract
In this study, we evaluate the strength of steel box beam-to-column connections subjected to axial loads in steel frame piers. The T-connection strength was reduced due to the column axial force in the two-story pier structure. To examine this phenomenon, non-linear FEM analysis was carried out and the analytical procedure was verified by comparing it with experimental results. To clarify the effect of the axial force and major design parameters in connection with strength, influence of panel zone width-thickness ratio, sectional area, and axial force was investigated using FEM analysis. Also, the theoretical strength equations were suggested by stress distribution of panel zone. The strength of the T-connection was compared with one of the one-story pier structure connections. As a result, the strength evaluation equations are proposed in consideration of the panel zone width-thickness ratio and sectional area ratio for the T-connections.
Keywords
box beam-to-column connection; axial load; panel zone; width-thickness ratio; sectional area ratio;
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