Performance Based Analysis of Building with Steel Plated Shear Wall

Abstract

A performance-based analysis of building with steel plated shear walls systems with rigid beam-to-column connections is proposed in this work, which sets a specific ductility demand and a preferred yield mechanism as its performance targets. This dissertation presents the fragility analysis of Steel Plate Shear Walls (SPSW) i.e., lateral load resisting systems with conventional RCC shear wall building under seismic excitation. Steel plated shear walls are investigated as a lateral load resisting system towards seismic loads. The investigation includes the seismic behaviour of building for different parameters of IS 1893: 2016 like Torsional Irregularity, Story drift, Story Stiffness, Base Shear, Plate Stresses etc. The design includes 9 story building with conventional RCC shear wall and trending steel plate shear wall governed by earthquake loading. The existing codes and design guidelines for steel plate shear walls (SPSWs) fail to utilize the excellent ductility capacity of SPSW systems to its fullest extent, because these methods do not consider the inelastic displacement demand or ductility demand as their design objective. The effectiveness of the proposed method in achieving these targets is illustrated through sample case studies of 9-story SPSW systems for varied design scenarios. This modified method is found to be more effective than the original proposal, whenever P-Delta effects are significant. Recommendations are made for future projects.