A design model for stainless steel box columns in fire |
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Authors: | B Uppfeldt T Ala Outinen |
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Affiliation: | a The Swedish Institute of Steel Construction, Vasagatan 52, SE-111 20 Stockholm, Sweden b VTT, Finland c Luleå University of Technology, Sweden |
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Abstract: | A study of stainless steel cold-rolled box columns at elevated temperatures is presented, which is a part of an on-going RFCS project “Stainless Steel in Fire”, 2004-2007. Experimental results of six, class 4, stub columns at elevated temperature, tested by Ala-Outinen Members with Class 4 cross-sections in fire: Work package 3, ECSC project stainless steel in fire. Contract no. RFS-CR-04048, Espoo, Finland; 2005], were used to evaluate the finite element (FE) model. The FE analysis obtained using the commercially available software, ABAQUS, shows that the critical temperature was closely predicted. Further, a parametric study was performed using the same numerical model. This was a basis to check the quality of prediction of a newly proposed improvement for design rules of class 4 cross-sections in fire according to EN 1993-1-4 Eurocode 3 - Design of steel structures — Part 1-4: General rules — Supplementary rules for stainless steels, CEN; 2006] and EN 1993-1-2 Eurocode 3: Design of steel structures — Part 1.2: General rules — Structural fire design, CEN; 2005]. |
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Keywords: | Stainless steel Buckling Column Fire |
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