Improving seismic performance of deficient reinforced concrete columns using carbon fiber-reinforced polymers

Seismic retrofit of square reinforced concrete columns using basalt and carbon fiber-reinforced polymer sheets: A comparative study

“…The experimental and numerical results have demonstrated that the use of FRP composites as a confining material can enhance the strength and ductility of the concrete column. Unlike the monotonic behavior, there are limited studies conducted on the cyclic behavior of FRP-confined concrete columns under simulated seismic loads (e.g., [8,[24][25][26][27][28][29][30][31][32]). Of these limited studies, FRP composites are commonly made from carbon, glass, and aramid fibers (referred to as conventional fibers hereafter).…”

Seismic retrofit of rectangular RC bridge columns using wire mesh wrap casing

“…Retrofitting circular or rectangular bridge columns by adding a cylindrical or an elliptical steel jacket in the potential plastic hinge region was effective as a retrofit measure to enhance flexural and shear strength and flexural ductility (Chai et al, 1991;Priestley et al, 1994). As an alternative to steel jackets, advanced composite material has been developed for retrofitting concrete columns, resulting in significantly improved hysteretic response and increased ductility (Ma et al, 1999;Ghosh et al, 2007;Ozcan et al, 2008;Harajli et al, 2008).…”

Seismic behavior of strengthened RC columns under biaxial loading: An experimental characterization

“…To increase the shear strength jackets can be added (in steel, concrete, or other types) across the column length. A variety of techniques have been subjected to experimental studies [12][13][14][15][16][17][18][19][20][21] in order to evaluate their performances. From the analysis of the available experimental work, it was possible to verify that all the strengthening techniques improve the bending strength, the stiffness, the ductility and the shear capacity.…”