TY JOUR TI CALCULATION OF THE INFLUENCE OF LOCAL DAMAGE OF FIRE RETARDANT COATING FOR FIRE RESISTANCE OF STEEL STRUCTURES USING SOFTWARE COMPLEX ELCUT 6.3 KW ELCUT 6.3 KW fire resistance KW fire protection KW steel structure KW ELCUT 6.3 JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Minkin, D.A. AU Konstantinova, A.S. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia