Steel and Composite Structures

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Behavior of fibre reinforced cementitious material-filled steel tubular columns

  • Kharoob, O.F. (Department of Structural Engineering, Faculty of Engineering, Tanta University) ;
  • Taman, M.H. (Department of Structural Engineering, Faculty of Engineering, Tanta University)
  • Received : 2016.11.09
  • Accepted : 2017.01.20
  • Published : 2017.03.20
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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 glass-fibres 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.

Keywords

Acknowledgement

Supported by : Tanta University

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