維持・管理（耐荷性能）

[I-113] estimation of axial force in thickness-reduction in steel plate repaired by patch plates with high-strength bolts

*八重垣 諒太¹、石川 敏之² (1. 関西大学大学院理工学研究科、2. 関西大学)

Keywords:cross-sectional steel, patch repair , high-strength bolted, axial force distribution

For the calculation of axial force in thickness-reduced plate repaired by patch plates with high-strength bolts, the equation to estimate axial force is proposed. In this paper, the axial force in the thickness-reduce plate repaired by the patch plates with high-strength bolts was estimated by the simple equation. Several thickness-reduced patterns were analyzed by the FEM. By the comparison of FE result and equation values, it is revealed that the axial force in the thickness-reduced plate repaired by patch plates with high-strength bolts was able to calculate by the simple equation within 5% error of FE results.