Thang, N.T. and Kien, N.T. 2021. Calculation of reinforced concrete beams’ shear strengths at ambient and fire conditions according to Russian design standards. Journal of Science and Technology in Civil Engineering (JSTCE) - HUCE. 15, 4 (Oct. 2021), 157-171. DOI:https://doi.org/10.31814/stce.huce(nuce)2021-15(4)-14.