Bonding and bolting angle reinforcement for distortion-induced fatigue in steel girder bridges

Physical fatigue tests and numerical simulation were conducted to verify the effectiveness of cold reinforcement methods of distortion-induced fatigue cracks at web gaps in steel girder bridges. Test results indicate that stop-holes could temporarily arrest crack growth. However, bolting and bonding angle could effectively arrest further cracking, and reduce distortions and fatigue stresses. Numerical simulation analysis results show that the...