Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (3): 35-42.doi: 10.3969/j.issn.1000-565X.2013.03.006

• Architecture & Civil Engineering • Previous Articles     Next Articles

Assessment of Seismic Performances of Overrun SRCFrame-Supported Shear Wall Structure

Yang Chun1 Li Guang-xing2 Wu Yi3 Chen Liang-xing3 Zhang Chun-mei3   

  1. 1.School of Civil Engineering and Transportation∥State Key Laboratory of Subtropical Building Science,SouthChina University of Technology,Guangzhou 510640,Guangdong,China; 2.Guangzhou City Construction andDevelopment Design Institute Co.Ltd. ,Guangzhou 510620,Guangdong,China; 3.School of Civil Engineering,Guangzhou University,Guangzhou 510006,Guangdong,China
  • Received:2012-02-23 Revised:2012-11-19 Online:2013-03-25 Published:2013-02-01
  • Contact: 吴轶(1973-)，女，博士，教授，主要从事钢－混凝土组合结构与结构抗震减震研究． E-mail:wya2103@163．com
  • About author:杨春(1973-)，男，博士，副教授，主要从事钢－混凝土组合结构与高层建筑结构研究．E-mail: chyang@scut．edu．cn
  • Supported by:

    国家自然科学基金青年基金资助项目( 51108104) ; 广东省自然科学基金资助项目( S2012010010074) ; 亚热带建筑科学国家重点实验室资助项目( X2TJ-C709025z) ; 亚热带建筑科学国家重点实验室自主研究课题( 2011ZC25，2011ZC28) ;亚热带建筑科学国家重点实验室开放基金资助项目( 2011KB06) ; 华南理工大学中央高校基本科研业务费专项资金资助项目( 2009ZM0230， 2011ZM0112) ; 市属高校“羊城学者”科研项目( 12A001D)

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Abstract:

The dynamic time history and push-over analyses of SRC ( Steel-Reinforced Concrete) frame-supportedshear wall structures with and without viscous dampers were carried out to obtain the seismic demand and capacitycurves,and the seismic performances of the structures were evaluated and the expected performance objects wereverified.Then,by analyzing the distribution and development of plastic hinges,the failure mechanism of the structureswas investigated.The results show that viscous dampers effectively decrease the seismic responses of the structures,that the peak displacement and the maximum inter-story drift angle of the structures respectively decrease by35% and 38% under earthquake actions with different intensities,that the seismic demand of the structure withviscous dampers decreases by 14% to 54%,that beam hinge failure is dominant in the structure fai-lure,and thatmost of transfer components and shear walls are still kept in weakly nonlinear state when the structure fails.Thus,the seismic performance object,namely transfer components and shear walls at the transfer and refuge stories are inelastic state under medium earthquake actions,is achieved.

Key words: steel-reinforced concrete, frame-supported shear wall, seismic performance, viscous damper, dynamictime history analysis, push-over analysis, peak displacement, maximum inter-story drift angle

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