Residual seismic performance of damaged reinforced concrete walls

• Experimental results of 11 RC walls scaled to 1/4 considering several damage levels and varying parameters were presented. The showed rapid severe stiffness degradation in squat subjected initial damage. with flange boundary elements had relatively greater due prior than columns. No significant deterioration ultimate strength capacity maximum deformation any level previous was observed. Structural engineers face a dilemma assessing the residual seismic damaged buildings after an earthquake, especially for lightly moderately that might not need repair but require be assessed their performance aftershocks future major earthquakes. main purpose this paper is investigate influence pre-damage on reinforced concrete (RC) wall tests, by conducting quasi-static, cyclic loading tests shear walls. A comparison reduction stiffness, capacity, existing guidelines regarding evaluation investigated. This study presents experimental eleven ¼ divided into three series based reinforcement ratio shape elements. Within each series, effect four specimens designed fail represent Onagawa nuclear power plant Japan. no slight