Pseudo-dynamic tests and static pushover analysis for steel frame structures in Chinese archaized buildings
XUE Jian-yang1, QI Liang-jie1, GE Hong-peng2, LIU Zu-qiang1
1. College of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China;
2. Northwestern Architectural Design Institute Co. Ltd, Xi’an 710018, China
Abstract：To study aseismic performances of steel frame structures in Chinese archaized buildings, pseudo-dynamic tests were conducted on a scaled 1:2 model for an archaized building’s steel frame structure built in an area with a fortified aseismic intensity of 8. Seismic waves including El Centro wave, Wenchuan one and Lanzhou one were input with maximum peak accelerations equivalent to common earthquake intensity of 8, fortified earthquake intensity of 8, and rare earthquake intensities of 8 and 9. The frame’s displacement responses, acceleration ones and strain distributions were measured and recorded. The structure’s force-bearing characteristics, hysteretic performance, energy dissipation performance, time-history curves of accelerations and displacements, loading capacity and stiffness degradation laws were studied and the structure’s static pushover analysis was conducted. The results showed that there is no obvious pinch phenomena in hysteretic loops, the structural energy dissipation increases significantly with increase in seismic wave amplitude; under the action of rare earthquake of 9, the arch component’s bottom located at a special-shaped joint and the bucket component located at the side column in the main hall both yield, skeleton curves don’t enter the decline stage, the whole structure has a higher loading capacity; under the action of earthquake waves, the maximum inter-story drift of the model meets the requirements of the current Chinese aseismic code, the steel frame structure has a good aseismic performance.
薛建阳1，戚亮杰1，葛鸿鹏2，刘祖强1. 仿古建筑钢框架结构拟动力试验及静力推覆分析[J]. 振动与冲击, 2018, 37(11): 80-88.
XUE Jian-yang1, QI Liang-jie1, GE Hong-peng2, LIU Zu-qiang1. Pseudo-dynamic tests and static pushover analysis for steel frame structures in Chinese archaized buildings. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(11): 80-88.
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