For citations:

Grebenyuk G.I., Maksak V.I., Yankov E.V. STIFFNESS ANALYSIS AND OPTIMIZATION OF STEPPED COLUMNS UNDER COMBINED BENDING AND COMPRESSION. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2020;22(5):111-121. (In Russ.) https://doi.org/10.31675/1607-1859-2020-22-5-111-121