增设翼墙RC框架结构的抗震性能研究

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Abstract Attaching wing walls is a common measure in the seismic retrofit of RC frames. A 7-story RC frame designed in accordance with the conventional design norm was taken as an example to study the seismic behavior of this combined system. Pushover analysis and a 1:4 scale shaking table test were performed. The results show that lateral resistance of the structure was enhanced, distribution of story drifts became more uniform and the realization of "strong column-weak beam" mechanism was facilitated based on the attached wing walls. Damage procedure observed during the tests showed that wing walls first damaged to dissipate the seismic energy. In the extreme shaking, reinforcement in the bottom of wing walls was bucking, while the reinforcement in the bottom of columns have not reached the yielding strain. It proved that wing walls can protect the frame columns and an extra seismic fortification line was achieved.

Key words： wing-wall strengthening pushover analysis strain analysis damage mechanism control; shaking table test

Received: 15 August 2014 Published: 25 December 2015

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	Articles by authors
	Yang Weisong1
	Guo Xun2
	Xu Weixiao1
	Yuan Xing3

Cite this article:

Yang Weisong1,Guo Xun2,Xu Weixiao1, et al. Study on seismic behavior of RC frame retrofitted with wing walls[J]. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(24): 144-152.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2015/V34/I24/144

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