FLEXURAL WEAKENING-SHEAR STRENGTHENING(FWSS)TECHNIQUE FOR THE SEISMIC RETROFIT OF RC FRAMES:EXPERIMENTAL STUDY

摘要：

　　The strong column-weak beam hierarchy has been widely accepted in the design of reinforced concrete(RC)frames for good seismic performance.In many existing RC frames designed according to previous codes,however,such a hierarchy was not enforced.To rectify this deficiency,a novel seismic retrofit method based on the flexural weakening-shear strengthening(FWSS)concept was proposed by the authors group for such frames.To verify the effectiveness of the FWSS technique,an experimental study comprising 8 full-scale RC beams with a web opening was carried out.The test results show that the proposed technique can substantially reduce the flexural capacity of the beam and in the meantime ensure a ductile beam response.More specifically,a web opening of appropriate size can effectively reduce the flexural capacity of a T-section beam,and FRP shear strengthening to avoid shear failure ensures a ductile response.

关键词： beam opening FRP strengthening strong column-weak beam hierarchy seismic retrofit

作者: X.F.Nie S.S.Zhang J.G.Teng G.M.Chen

作者单位: Department of Civil and Environmental Engineering,The Hong Kong Polytechnic University,Hong Kong,Chi School of Civil,Mining and Environment Engineering,University of Wollongong,Northfields Avenue,Wollo School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou,China

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-4

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）