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This paper experimentally and numerically (using the finite element analysis) examines cross-section shape effects on damaged SCC short columns enhanced with CFRP sheet wrapping. The impact of various strengthening techniques on the structural behaviour of columns was investigated, with the convergence between the experimental and numerical results verified numerically in ABAQUS. The experimental strengthening process included partial or full wrapping in CFRP sheets, with specimens in the first group enhanced with three or five CFRP sheets of 100 mm width and those in the latter group enveloped in CFRP sheet to the full column height. The numerical results agreed well with the experimental results and demonstrated that the square cross-section SCC short column exhibited higher strength capacity than other shapes.

Experimental and numerical investigation of the effect of cross-section shape on damaged self-compacting concrete columns