Retrofitting and Strengthening of Damaged Reinforced Concrete Columns Using Steel Angels Wrapped with Steel Wire Mesh
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 12
Abstract
Six reinforced concrete rectangular columns with a cross section 120x160 mm and 800 mm length were casted and tested until failure. Two control columns were tested under axial load and four columns were tested under different eccentricities e/t= (6.30%, 12.5%, 18.75% and 25%). All specimens were retrofitted by replacing the loose concrete part by grout mortar. Strengthening was carried out using four vertical steel angles, two angles 30x30x3mm in eccentricity direction and two angles 15x15x3 mm in the reverse direction all wrapped with expanded three plies steel wire mesh. However, the steel wire mesh jacket was injected by cement mortar. The test results showed that columns strengthened with four vertical steel angles wrapped with three plies steel wire mesh tested under different eccentricity recorded a higher failure load than that wrapped with three plies steel wire mesh only. The increase in column carrying capacity ranged from 102.5% to 112%.
Authors and Affiliations
Abd-ELhamed, M. K , Ezz-Eldeen, H. A
Keywords
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