Experimental Study on Making Databases for Fire Resistant Steel at High Temperature

Abstract

Fire at building can occur enormous damages to life, properties, and environment and the risk of fire breakout is going up higher because of application of combustible materials than before. Therefore, the steel industries are trying to develop fire resistant steel in order to sustain the load bearing capacity of steel structures during fire situation. In this paper, to give the basis data-bases for evaluation of structural stability of steel structures applied fire resistant steel, FR 490, the tests of mechanical and thermal properties at high temperature were conducted and the comparisons are done with the SM 490 that has the same mechanical one. Keywords :Fire resistant steel, 0.2% offset proof stress, Mechanical property at high temperature, Thermal property at high temperature 1. 서 론 1

Study for the Method to Secure the Safety of Fire-fighters in the Building Damaged by a Fire by Using Fire-resistant Design Theories - Mainly about Suggesting the Process and the Method for a Real-time Safety Evaluation by a Fire-fighter -

“…집성목재보의 건축구조물 위험성 평가를 실시한 결과, Figure 10과 같이 목재표면 탄화에 의한 부재단면축소로 부재강도는 시간이 지남에 따라 감소하여 90 min 후에는 부재 단면력보다 작아져 항복하는 것으로 나타났다. (12) .…”

Study of Structural Stability for H-section Beams Made of Fire Resistant Steels (FR 490) at High Temperatures by Analytical Method

“…따라서 본 연구에서 는 고온 시의 특성을 활용하여 FR 490강재로 구성된 보부 재의 고온 시 구조적 거동을 해석적으로 평가하고자 한다. 의 그리고 권인규 (6) 가 대표적이다. 부재측면의 연구는 Sakumoto (7,8) , Yang (9,10) 에 의해서 수행된 기둥부재에 관한 것이 대부분이며, 일부 보-기둥부재에 관한 Chung (11) 의 연 구가 제한적으로 수행되었다.…”