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《China Civil Engineering Journal》 2010-02
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Experimental study on the behavior of recycled-concrete-segment/lump filled steel tubular stub columns subjected to concentrically axial load

Wu Bo1 Liu Wei1 Liu Qiongxiang2 Xu Zhe1(1. State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China;2. Shenzhen General Institute of Architectural Design and Research,Shenzhen 518000,China)  
In order to investigate the axial compressive behavior of recycled-concrete-segment/ lump filled steel tubular (RCS/LFST) stub columns,based on the tests of 17 specimens,the 7d and 28d axial mechanical properties of RCS/LFST stub columns and concrete filled steel tubular (CFST) stub columns are studied,and a comparison is conducted for stiffness,strength and ductility of the two kinds of stub columns. According to the domestic and foreign design codes for CFST structures,the axial load bearing capacities of the specimens are calculated and compared with the test results. Then a suitable formula is chosen to determine the axial ultimate strength of RCS/LFST stub columns. Test and simulation results show that:(a) although 30% ~ 35% of the concrete used in the RCS/LFST specimens is demolished concrete,the axial mechanical properties of these specimens are almost the same as those of the CFST specimens; and (b) the axial load bearing capacities of the RCS/LFST specimens calculated according to the domestic standard JCJ 01—89 are in good agreement with the test results.
【Fund】: 教育部新世纪优秀人才支持计划(NCET-04-0819);; 亚热带建筑科学国家重点实验室人才培养基金(2008ZB15)
【CateGory Index】: TU398.9
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 Wu Bo~1,Liu Qiong-xiang~2,Liu Wei~1,Xu Zhe~1(1.State Key Laboratory of Subtropical Building Science,South China Univerity of Technology,Guangzhou 510640,China;2.Shenzhen General Institute of Architectural Design and Research,Shenzhen 518000,China);Primary Study on Recycled-concrete-segment Filled Steel Tubular Members[J];Earthquake Resistant Engineering and Retrofitting;2008-04
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Wu Bo1,Xu Zhe1,Liu Qiong-xiang2,Liu Wei1(1.State Key Laboratory of Subtropical Building Science,South China Univ.of Technology,Guangzhou 510640,China;2.Shenzhen General Institute of Architectural Design and Research,Shenzhen 518000,China);Test on Flexural Behavior of Reinforced Concrete Beams Filled with Demolished Concrete Lump[J];Earthquake Resistant Engineering and Retrofitting;2010-01
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 XIAO Jian-zhuang,LI Jia-bin,LAN Yang(Tongji University, Shanghai 200092,China);Research on recycled aggregate concrete-A review[J];Concrete;2003-10
2 LI Jia-bin, XIAO Jian-zhuang, HUANG Jian(Department of Building Engineering, Tongji University, Shanghai 200092, China);Influence of Recycled Coarse Aggregate Replacement Percentages on Compressive Strength of Concrete[J];Journal of Building Materials;2006-03
3 Wan Huiwen Shui Zhonghe Lin Zongshou Xiao Kaitao Wan Huiwen: Assoc. prof., School of Materials Science and Engineering, WUT, Wuhan 430070, China.;Environmental Assessment for Regenerated Concrete[J];Journal of Wuhan University of Technology;2003-04
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