Seismic Comparison of Steel Frame with Improved Beam-column Connection
Zhang Yanxia1,2 Wang Zongyang1 Ning Guang1 Li Jiarui1
1. School of Civil and Transportation Engineering，University of Civil Engineering and Architecture，Beijing 100044，China；
2. Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials，University of Civil Engineering and Architecture，Beijing 100044，China
Abstract：After finishing the experiment and finite element analysis towards the improved connections, which included reduced beam flange connection, widened beam flange connection and widened-reduced beam flange connection, the finite element models of three steel frames with improved connections and rigid frame were built by using ABAQUS software, and the modal analysis, the dynamic time-history analysis of three improved steel frame were carried out to analyze the seismic behavior compared with the rigid steel frame. The analysis results indicate that three improved steel frames could shift away the plastic hinge from the panel zone and protect the beam end welding under the 8-degree rare earthquake. Compared with the reduced-beam flange steel frames, the widened-reduced beam flange steel frame controlled effectively the story drift. Compared with the widened-beam flange steel frame, the widened-reduced beam flange steel frame had little influence on the base shear force and lead smaller development of the plastic strain to the column base and panel zone. Therefore, the widened-reduced beam flange steel frame had better seismic behavior.
张艳霞1,2 王宗洋1 宁广1李佳睿1 . 改进型节点钢框架整体模型的抗震性能对比分析[J]. 振动与冲击, 2016, 35(18): 152-158.
Zhang Yanxia1,2 Wang Zongyang1 Ning Guang1 Li Jiarui1 . Seismic Comparison of Steel Frame with Improved Beam-column Connection. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(18): 152-158.
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