Self-centering walls strengthening by high-performance concrete: a feasibility study

Abstract In this research, the feasibility of strengthening self-centering walls by high-performance concrete was investigated through an experimentally validated finite element model. The effects wall’s axial stress and tendons’ prestressing ratios on damage, effectiveness potential approaches were studied 40 independent scenarios, 360 different cases. Using estimated damage from numerical results at compression zone near bottom corners, maximum compressive strain walls’ toe regions estimated. calibrated strain, a practical approach proposed to delimit both damaged height crushed height. heights’ information used investigate two either retrofitting (for walls) or rehabilitating newly constructed walls). Increasing ratio decreased developed in region, whereas did not show significant effects. Moreover, increasing substantially ratio, region increased, opposite effect produced. Based findings it concluded that for with lower (< 0.095), resulted similar outcomes, while higher casting portion HPFRC led sounder/safer designs.