Abstract
<jats:p>The research in this paper focuses on issues related to determining the real working duty classification for a tower crane engaged with urban housing construction. First, the generally accepted requirements regulated in the international standards, which are most often used to determine the design working duty of tower crane, are examined. After that, an example numerical solution with real input data, by which the values of the real working duty parameters were obtained, is considered. The results for the tower crane engaged with urban housing construction are obtained with the design working duty parameters for tower cranes given in the international standard ISO 4301-3:2021. Thus, important conclusions are drawn, which could be useful for engineers and technical staff committed to the operation, repair and maintenance of tower cranes at the building sites in the cases of clarifying the real working duty classification for a tower crane engaged with urban housing construction, as well as in cases when important decisions related to determination of the maximal useful life of a tower crane are taken.</jats:p>