Srđan Milovan Bulatović
Senior Research Associate
Institute IMS Belgrade
Zorica Kovačević
Principal Research Fellow
Institute IMS Belgrade
Vujadin Aleksić
Senior Research Associate
Institute IMS Belgrade
Senior Research Associate
Institute IMS Belgrade
Zorica Kovačević
Principal Research Fellow
Institute IMS Belgrade
Vujadin Aleksić
Senior Research Associate
Institute IMS Belgrade
Stop-hole drilling technique to repair and stop the propagation of fatigue cracks in a steel bridge
Constructions and Design EngineeringFatigue damage in steel bridge joints is one of the most serious and widespread problems in the
maintenance of transport infrastructure worldwide [1, 2]. Such damage occurs as a result of long-term exposure to variable loads (traffic), which are often significantly lower than the yield strength of the steel, but lead to gradual accumulation of damage and the appearance of cracks. As an effective tool in the detection and assessment of fatigue cracks in steel bridges, non-destructive testing (NDT) [3] methods occupy a key place in the infrastructure maintenance and management system. Magnetic particle inspection (MPI) [4] and penetrant testing (PT) [5] are two of the most commonly used, efficient and reliable non-destructive field methods for the detection of surface and subsurface fatigue cracks in steel bridge structures.
