Seismic Evaluation of Vertically Irregular RC Buildings

Abstract

Classification of seismic damage indices proposed in the published literature is popularly known as local damage indices and global damage indices. Multiple parameters for each of them are studied to predict the seismic performance of structures. Such a parameter is chosen in this study. For a building to fail by ground motion excitations, certain limiting values of the above-mentioned indices (performance-based limit states) are given in the codes and published literature. A review of a probabilistic detailed seismic analysis, carried out for a regular and geometrically irregular RC framed buildings subjected to typical site hazard, is presented in this paper. Natural ground motions are used to verify the probability of failure of such frames rather than using synthetic ground motion.