The use of FEM is considered effective in complementing experimental results for high strength bolt tensile joints, and improving analysis accuracy is essential. In this study, we experimentally investigated the residual displacement and ultimate strength of high strength bolt subjected to repeated loads. We also examined a bolt model that can simulate experimental results. The results showed that significant residual displacement of the bolts occurs near the ultimate load. The analysis demonstrated that adjusting material properties improves the accuracy of reproducing both the ultimate load and residual displacement.
