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Steel and Composite Structures Volume 30, Number 6, March25 2019 , pages 591-601 DOI: https://doi.org/10.12989/scs.2019.30.6.593 |
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Experimental and analytical investigations of CFFT columns with and without FRP bars under concentric compression |
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Qasim S. Khan, M. Neaz Sheikh and Muhammad N.S. Hadi
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| Abstract | ||
| This research study investigates experimentally and analytically the axial compressive behaviour of Concrete Filled Fiber Reinforced Polymer Tube (CFFT) columns with and without Fiber Reinforced Polymer (FRP) bars. The experimental program comprises five circular columns of 204-206 mm outer diameter and 800-812 mm height. All columns were tested under concentric axial compressive loads. It was found that CFFT columns with and without FRP bars achieved higher peak axial compressive loads and corresponding axial deformations than conventional steel reinforced concrete (RC) column. The contribution of FRP bars was about 12.1% of the axial compressive loads carried by CFFT columns reinforced with FRP bars. Axial load-axial deformation (P – | ||
| Key Words | ||
| CFFT; FRP bars; axial load-deformation curve; axial load carrying capacity; columns | ||
| Address | ||
| (1) Qasim S. Khan: Civil Engineering Department, University of Engineering and Technology, Lahore, Pakistan; (2) M. Neaz Sheikh, Muhammad N.S. Hadi: School of Civil, Mining and Environmental Engineering, University ofWollongong, Australia. | ||