[3I01-08] Reactor Design, Nuclear Power Plant Construction and Seismic Resistance

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[3I07] Soil-Structure Interaction Analysis for Concrete Structures(1) Structural Nonlinearity for RC and SC Structures

*Yuki Sato¹, Ma Ella Candice Mag-Alasin¹, Dan M. Ghiocel², Shunji Kataoka¹, Yasutomi Morimoto¹ (1. JGC Corporation, 2. GP Technologies Inc.)

Keywords:

Soil-Structure Interaction,Reinforced Concrete,Steel-Composite Concrete,Nonlinear Seismic Response Analysis

During severe earthquakes, the inelastic structure behaviour should be considered in the seismic analysis of nuclear facilities. To capture soil-structure interaction (SSI) effects accurately, dynamic substructuring approaches were developed in complex frequency. These SSI substructuring approaches have been widely used in practice especially in the United States. Since the application of these substructuring approaches in complex frequency are limited to the elastic material behaviour, more recently, efficient iterative hybrid frequency-time SSI approaches were implemented to capture nonlinear structure behaviour. The presentation describes such an approach based on a highly efficient iterative equivalent linearization procedure. In this study, the differences between the seismic structure behaviour for the RC and SC designs were investigated using Japanese standards, for a typical 3DFEM building.