USE OF RADAR CHART AS A TOOL TO EVALUATE ACCURACY OF SEISMIC RESPONSE ANALYSIS OF GROUND AND APPLICABILITY OF VARIOUS SEISMIC RESPONSE ANALYSES

Abstract

The use of earthquake motion indices, which have been used to evaluate earthquake damage, is proposed in order to improve the evaluation of accuracy of the seismic response analysis of ground. The effective stress analysis shows the best simulation, but other methods are also good depending on the index. It is shown that the proposed method is useful to see the error or accuracy from various points of view. The results clearly indicate that the compatible strain ranges for equivalent linear and total stress truly nonlinear analyses depend on the purpose of analysis.