Synopsis Amid expectations for the application of nonlinear finite element analysis to performance verification of concrete structures, the 2012 edition of the "Design" volume of the Standard Specifications for Concrete Structures includes a section on "Verification by Nonlinear Finite Element Analysis". Conventionally, the application of finite element analysis to performance verification has been done within the framework of traditional performance verification by replacing the stress and

more »

... in obtained from the analysis with sectional forces and deformation, but this approach did not allow full utilization of the results of nonlinear finite element analysis as it does not directly make use of detailed information on local material damage. In this regard, the 2012 edition introduces generic verification indices that use strain and stress, allowing performance verification of structures based on material damage. This paper explains the basic concept of the performance verification method using nonlinear finite element analysis as defined by the Japan Society of Civil Engineers, and introduces assessment cases of concrete structures using material damage indices. Keywords: nonlinear finite element analysis, performance verification, material damage indices, response value, limit value