Resilience Based Earthquake Design of Buildings: Current Practice, Problems, and Opportunities in Indian Scenario

Abstract

Resilience based design (RBD) gives an advantage in designing for both direct and indirect losses. It was observed that most significant losses to the economy is due to indirect losses incurred due to long downtime—inability of common mass to resume to their jobs and return home. With the use of RBD methods it is possible to control the downtime and its losses. In Indian scenario one of the major problem associated with carrying out RBD is lack of ground motion database and guidelines for selection and scaling ground motions. It is required to have hazard consistent ground motions to perform non-linear time history analysis (NLTHA) and using this analysis results, downtime assessment such as repair cost, repair time along with direct loss could be assessed. In this paper, current practices and their limitation in resilience based earthquake design are discussed along with the selection of proper ground motion and scaling methods. This paper also suggests various alternative methods such as use of SPO2IDA in cases where hazard consistent ground motion cannot be produced easily.