For citations:
Lyakhovich L.S., Akimov P.A., Tukhfatullin B.A. Estimated closeness of optimum piecewise constant section width in I-rods with stability or first eigen-frequency limits to the predicted minimum material consumption with regard to strength requirements. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2020;22(4):114-125. (In Russ.) https://doi.org/10.31675/1607-1859-2020-22-4-114-125