Stress analysis of the additional loading device of the bridge crane for weights up to 500 t

Abstract

In this work, additional loading device of the bridge crane for loads up to 500t, used at the „Đerdap” Hydro power plant, is analysed. The main aim is to determine the stress state, especially the stress distribution along the cross sections at the position of the opening for weight attachment. The main reason for conducting this analysis was the fact that non-destructive examination (NDE) revealed some defects in the material. The stress values are determined using analytical and numerical methods. Both of them have shown that the safety factor value in the cross sections around the opening are acceptable, and that the material has sufficient remaining strength despite the defects observed using NDE.