Abstract
This paper is the last part of five serial reports and consists of two sections. In the first section, an equivalent linear model is proposed to develop simpler analytical model than those used in the computer program OS-1D in the previous papers. The proposed model consists of (a) a tetra-linear skeleton curve having origin-oriented histeretic rule and (b) equivalent viscous damping ratio depending upon the experienced maximum response displacement in terms of ductility factor. It is indicated that the proposed model analysis can simulate well the maximum response displacement obtained by the On-line test. In the second section, the overall view and results of the project are summarized.