Seismic damage evaluation of RC buildings using nonlinear static method

Abstract

The main objective of this chapter is to evaluate the expected seismic damage in reinforced concrete buildings from a deterministic point of view. To do that, a typical low-rise and mid-rise RC building is designed for two design cases according to the provisions of Indian codes IS 456 and IS 1893 as a gravity load and earthquake-resistant designed building. These are analyzed using nonlinear static procedure as ATC 40 and fragility analysis by HAZUS methodology. Starting from the determination of capacity curves from capacity spectrum-based method which revealed the nonlinear performances of buildings together with fragility curves, damage probability matrices (DPM) are formed for maximum considered earthquake (MCE) and design basis earthquake (DBE) to evaluate the damage state. The study suggests that the earthquake-resistant designed buildings show better performances and lie in low-level damage as compared to gravity load designed buildings.