Ground Response Analysis of a Nuclear Power Plant Site in Southern India: A Nonlinear Approach

Abstract

One-dimensional nonlinear ground response analysis is performed for a nuclear power plant site situated in east coast of south India. Since the strong motion records available for the study area are scarce, a synthetic ground motion time history developed for the same site by (James et al., Nat Hazards 71:419–462, 2014) and its scaled-up scaled-down versions are used as the input motion at bedrock level. A few more synthetic ground motion histories are also developed and applied as input motion in order to analyse the deviation in ground response with variation in frequency content and duration of bedrock motion. Martin–Finn–Seed pore pressure model is used to compute development of excess pore pressure during loading. The peak horizontal acceleration (PHA) profile, amplification spectra and response spectra at surface level for 5% damping are plotted for each location.