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Steel and Composite Structures Volume 23, Number 4, March20 2017 , pages 465-472 DOI: https://doi.org/10.12989/scs.2017.23.4.465 |
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Behavior of fibre reinforced cementitious material-filled steel tubular columns |
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O.F. Kharoob and M.H. Taman
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| Abstract | ||
| This paper presents an experimental study, investigating the compressive behavior of glass-fibre reinforced and unreinforced cementitious material-filled square steel tubular (GFCMFST and CMFST) columns. The specimens were manufactured by using high performance cementitious materials without using coarse aggregate. The influence of adding glassfibres to the mix on the behavior of both axially and eccentrically loaded columns is considered. It was found that adding glass fibre improvesthe confinement behavior, the axial compressive strength, the stiffness and the toughness of both axially and eccentrically loaded columns. The compressive strength of axially loaded columns is compared with strength predictions according to EC4 and the AISC specification. It was found that the design predictions according to EC4 and the AISC codes provide conservative results for CMFST and GFCMFST columns. Alternatively, the axial load.bending moment interaction diagrams specified in theEC4 are conservative for the eccentrically tubular CMFST and GFCMFST tested columns. | ||
| Key Words | ||
| experimental investigation; cementitious material-filled; square hollow section; glass-fibre; axially loaded column; eccentrically loaded column | ||
| Address | ||
| Department of Structural Engineering, Faculty of Engineering, Tanta University, Tanta, Egypt. | ||