Non linear static analysis of stiffness irregular RC structures

Abstract

Vertical structures exhibit flexibility than ordinary structures and also they show sensitivity in earthquake excitation. As per the safety standards of construction, structures are built with simple and uniform configurations. Focusing on aesthetic view of these vertical structures, discontinuity in stiffness occurs there by resulting in soft storey. this feature is highly undesirable in buildings especially in seismic active zones. However soft storey cause large deformations at the junction of building lead a greater failure for life and property. An attempt has been made to predict seismic performance of these structures considering G+ 14 storeys. Developing soft storey at base and mid level of G+14 structure and evaluating its seismic performance under non linear static analysis by using SAP2000. A comparative study is made based on, with and without soft storey of G+14 structure and results are tabulated.