TY JOUR TI I-BEAM WITH ZGSP CHORNS AND A CORRUGATED WALL KW steel beam KW corrugated wall KW prestressed tightening KW ZGSP chords KW stress-strain state KW efficiency of constructive solution JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Vodyahin, N.V. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov