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PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Confined High Strength Concrete Columns subject to Flexure and Axial Loads
R. Meziani, M. Bentalha, A. Boufedah Badissi and B. Bousalem
Laboratory Building Materials, Department of Civil Engineering, Faculty of Engineering, University Constantine 1, Algeria
R. Meziani, M. Bentalha, A. Boufedah Badissi, B. Bousalem, "Confined High Strength Concrete Columns subject to Flexure and Axial Loads", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 240, 2014. doi:10.4203/ccp.106.240
Keywords: columns, curvature, confinement, ductility, high-strength concrete..
The fragile and explosive behaviour of high-strength concrete structural elements remains a problem and risks the lives' of occupants inside the structure during an earthquake. This paper reports the numerical simulation results of high-strength concrete columns under flexure and axial load. In addition, the best reinforcement configuration to achieve the desired ductile behaviour was researched. The columns ductility was studied by observing the moment-curvature curve of different columns with different configurations by varying the following parameters: concrete compressive strength, spacing, yield strength, diameter of the hoops, longitudinal reinforcement rate, and the rate of the axial load applied to the column. It appears that the influence of different parameters is sometimes important, the interaction between them is variable and adequate confinement with transverse reinforcement can be a good option to solve this problem.
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