ESTIMATION OF AXIAL-FORCE SHARING OF CROSS-SECTIONAL LOSS IN STEEL MEMBERS REPAIRED BY PATCH PLATES WITH HIGH-STRENGTH BOLTS UNDER AXIAL LOADING

Abstract

 In this paper, the axial-force sharing of cross-sectional loss in steel members repaired by patch plates with high-strength bolts under axial loading is estimated by applying the displacement compatibility conditions between cross-sectional loss steel members and patch plates between the distance of high-strength bolts near the defects. The estimated axial-forces sharing of cross-sectional loss in steel members with patch repair are in good agreement with that calculated by the finite element result, as well as that given by the tensile test results. Additionally, when the cross-sectional loss was deep and its length short, it fractured at the defective area even after the repair by the patch plates.