期刊
THIN-WALLED STRUCTURES
卷 195, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2023.111359
关键词
Steel moment -resisting frame; Weak -beam mechanism; Earthquake resistance; Square hollow section column; Local buckling; Width -to -thickness ratio
This study conducted incremental dynamic analyses to investigate the relationship between the seismic performance and deformation capacity of weak-beam-type steel moment-resisting frames (MRFs) with square hollow section (SHS) columns. The analytical results obtained a relationship between the required strength of the weak-beam-type steel MRFs and the width-to-thickness ratio of the SHS columns, and evaluated the safety margin of MRFs up to collapse in relation to the width-to-thickness ratio of the SHS column.
This study performed incremental dynamic analyses to investigate the relationship between the seismic performance and deformation capacity of the column of weak-beam-type steel moment-resisting frames (MRFs) with square hollow section (SHS) columns. A hysteresis model that accurately simulates the local buckling cyclic behavior was used for the analysis. From analytical results, a relationship between the required strength of the weak-beam-type steel MRFs and the width-to-thickness ratio of the SHS columns was obtained. Also, safety margin of MRFs up to collapse was evaluated in the relationship with the width-to-thickness ratio of the SHS column.
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