CALCULATION OF RESIDUAL USAGE PERIOD OF BUILDING CRANE STEEL STRUCTURE.

The suitable management of residual usage period for building cranes is impossible without fatigue failure analysis and fatigue assessment of their steel structures. The present paper presents a methodology for calculation of residual usage period of building crane steel structures. The proposed method includes determination of weak points of crane steel structure, working cycle analysis, stress history analysis and calculation of the real stress history parameter for a selected weak point (element), on the basis of which is calculated residual usage period for building crane according to the new European standard EN 13001. [ABSTRACT FROM AUTHOR]