Abstract
This paper presents experimental results of a full-scale fire test with loading by Fire Resistant steel (FR steel) columns and their numerical analysis. Because of the elements it contains, FR steel excels, compared to conventional structural steels, in strength at elevated temperatures. Sprayed rockwool and an intumescent coating are used in providing FR steel's fire protection. Experimental results show that FR steel columns can bear a load corresponding to two-thirds of their room temperature yield point at 600℃, reduce the thickness of rockwool compared to conventional steel columns, and provide one hour of fire resistance with an intumescent coating. Also, a numerical analysis shows that it is possible to simulate fire, resistance time and deformation behavior by the numerical properties of FR steel and an elasto-plastic creep thermal deformation analysis.
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