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Steel and Composite Structures Volume 15, Number 5, November 2013 , pages 507-518 DOI: https://doi.org/10.12989/scs.2013.15.5.507 |
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Cyclic testing of weak-axis steel moment connections |
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Kangmin Lee, Rui Li, Heetaek Jung, Liuyi Chen and Kyunghwan Oh
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| Abstract | ||
| The seismic performance of six types of weak-axis steel moment connections was investigated through cyclic testing of six full-scale specimens. These weak-axis moment connections were the column-tree type, WUF-B type, FF-W type, WFP type, BFP-B type and DST type weak-axis connections. The testing results showed that each of these weak-axis connection types achieved excellent seismic performance, except the WFP and the WUF-B types. The WFP and WUF-B connections displayed poor seismic performance because a fracture appeared prematurely at the weld joint due to stress concentrations. The column-tree type connection showed the best seismic behavior such that the story drift ratio could reach 5%. | ||
| Key Words | ||
| moment resisting frame; weak-axis steel moment connection; cyclic testing; seismic performance; ductility | ||
| Address | ||
| (1) Kangmin Lee, Rui Li: Department of Architectural Engineering Chungnam National University, Daejeon, Korea; (2) Heetaek Jung: 3D Engineering Co., Ltd., Seoul, Korea; (3) Kyunghwan Oh: Engineering & Construction Group, Samsung C&T Corporation, Seoul, Korea. | ||