TY JOUR TI REPLACEMENT OF INDIVIDUAL COMPONENTS OF RAFTER TRUSSES WITHOUT DISMANTLING THE COATING STRUCTURES KW metal truss KW defect KW reinforcement KW technical condition JO Scientific Papers Collection of the Angarsk State Technical University AU Gorbach, P.S. AU Pilipenko, A.N. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»