Abstract
This paper introduces the current safety situation of portal crane and the deficiencies of current supervision methods, and proposes the application of new methods for the safety assessment of equipment. The safety assessment method for portal cranes based on the Analytic Hierarchy Process (AHP) is studied, and the safety assessment method applicable to the portal cranes in service is obtained. By defining the equipment safety performance assessment value D, the real-time status and risk level of equipment can be expressed tangibly and clearly.
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