고강도 용접구조용 강재 적용 장스팬 보부재의 해석적 내화성능 비교 연구

Comparative Study for Long Span Beams built up with Sub-marine High Strength Structural Steels at High Temperature using Analytical Method

Recently, the building has been changed into high-rise and long span and this yields a development of high performance structural steels in construction market. According to this effect, the SM 520 and the SM 570 were developed and utilized into steel building industry. However, the study for fire resistance of them were not done actively. In this study, to know and comparative the fire resistance performance of long span beams built up with high strength structural steels an analytical method is going to applied using mechanical and thermal properties at high temperature.