ESTIMATION OF AXIAL-FORCE SHARING OF CROSS-SECTIONAL LOSS 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 steel members repaired by patch plates with high-strength bolts under axial loading is estimated by applying the displacement conformance condition between cross-sectional loss steel members and patch plates among the distance of high-strength bolts. The estimated axial-forces of cross-sectional loss 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 was short, it fractured from the cross-sectional loss even after the repair by the patch plates.