This paper presents the behavior of precast hollow-core fiber reinforced polymer (FRP)-concrete-steel tubular columns (HC-FCS) under combined axial and lateral loading. The HC-FCS column consisted of a concrete wall sandwiched between an outer FRP tube and an inner steel tube. Two large scale columns, RC-column and HC-FCS column were investigated during this study. The steel tube of the HC-FCS column was embedded into the footing while the FRP tube was stopped at the top of the footing level, i.e., the FRP tube provided confinement only. The hollow steel tube is the only reinforcement for shear and flexure inside the HC-FCS column. The FRP in HC-FCS ruptured at lateral drift of 15.2% while the RC-column displayed 10.9% lateral drift at failure. The RC-column failed due to rebar rupture and the moment capacity suddenly dropped more than 20% after that. However, the HC-FCS suffered gradual failure due to concrete crushing, steel local buckling and yielding, followed by FRP rupture.
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Missouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USAMissouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USA
Abdelkarim, Omar I.
ElGawady, Mohamed A.
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Missouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USAMissouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USA
ElGawady, Mohamed A.
Anumolu, Sujith
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Missouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USAMissouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USA
Anumolu, Sujith
Gheni, Ahmed
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Missouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USAMissouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USA
Gheni, Ahmed
Sanders, Gregory E.
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Cent Off Missouri Dept Transportat, Bridge Div, Jefferson City, MO 65400 USAMissouri Univ Sci & Technol, Dept Civil Architectural & Environm Engn, Rolla, MO 65401 USA
机构:
Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China
Li, L. J.
Fang, S.
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Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China
Fang, S.
Fu, B.
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Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China
Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R ChinaGuangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China
Fu, B.
Chen, H. D.
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Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China
Chen, H. D.
Geng, M. S.
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Guangzhou Metro Design & Res Inst Co Ltd, Guangzhou 510220, Peoples R ChinaGuangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Peoples R China