Quantitative Risk Assessment for the Components of Crane Based on the Risk-Based Inspection

Traditional inspections for cranes predominantly rely on periodic testing, which often involves unreasonable inspection intervals and insufficient attention to high-risk equipment and critical components. A quantitative risk assessment model for crane parts has been adopted from the Risk-Based Inspection (RBI) for pressure equipment. First, a failure probability calculation model was developed based on the coefficient correction method. The weights of each influence factor were calculated using the Analytical Hierarchy Process (AHP). And finally, the grey comprehensive evaluation was selected to calculate the correction factors, thereby determining the actual failure probability of the components. A quantitative risk assessment model for crane components was ultimately proposed, which incorporates a quantitative economic evaluation of failure consequences for components. The model for crane components based on RBI provides a foundation for establishing reasonable inspection strategies for cranes scientifically. Furthermore, it offers valuable insights for research on accident prevention and safety assessment for cranes.