The Behavior of Low-Yield Point Corrugated Steel Plate Shear Walls in Strengthening RC Frames

Two types of corrugated steel plate shear walls, namely low-yield point (LYP) and convention, are investigated in terms of strengthening reinforced concrete (RC) frames. Within LYP corrugated steel plate shear walls, two layouts are considered: half and full plate. A total of 24 models are considered to assess their performance in the aspect of ultimate strength, stiffness, and mechanical analysis. The objective of this research is to compare and analyze the effectiveness of LYP corrugated steel plate shear walls in enhancing the seismic resistance of RC frames. Based on force analysis and finite element modelling, the equivalent support model is proposed to verify the validity of the models. The deviation was between 1.76 and 14.27%. The findings reveal that LYP corrugated steel plate shear walls demonstrate comparable bearing capacity to conventional methods, with the added advantage of improved ductility. The maximum top displacement increases by 35% and 68% in the case of half and full plate. Although there is minimal variation (9.86%) in stiffness, these characteristics collectively contribute to enhanced seismic resistance and overall performance of the reinforced concrete frames. © The Author(s), under exclusive licence to Shiraz University 2024.