%0 Journal Article %T Reconstruction of cantilever stone staircases in the architecture of St. Petersburg. Part 3: how to calculate a straight flight staircase with plane treads %A Weber, M.D. %A Kuznecov, A.V. %K stone structures, cantilever staircases, hanging stairs, inspection, reconstruction, restoration, verification calculations, calculation examples %J Proceedings of Petersburg Transport University %D 2026 %N 23 %P 9 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"