standard fire exposure natural fire exposure Safety factor safety factor for fast Safety factor time of time for minimum fire for fast for γΜ,fi γΜ,fi 30 60 30 minutes 60 moment capacity of fire minutes minutes minutes 10-1 566.69 295.58 1.36 1.49 272.80 1.50 307.05 1.47 10-2 428.17 169.38 1.80 2.60 155.00 2.64 174.95 2.58 10-3 282.30 90.62 2.73 4.86 83.34 4.91 92.87 4.86 Mfi,LT Material 770.70 440.41 409.20 451.37 model [8] Table 8 Material safety factors for Shaw’s H cross section (Figure 6d) Probability Standard fire [17] Natural Parametric fires [17] – of failure Moment for Moment Safety factor Minimum moment Safety factor Safety factor γΜ,fi Pf Capacity(kNm) after Capacity(kNm) after for Capacity(kNm) and for fast γΜ,fi γΜ,fi standard fire exposure natural fire exposure safety factor for fast fire time of time for minimum fire 30 60 30 minutes 60 moment capacity of minutes minutes minutes 10-1 1176.35 779.40 1.33 1.44 701.56 1.44 881.69 1.40 10-2 953.83 483.68 1.64 2.32 433.58 2.33 539.02 2.29 10-3 791.13 267.47 1.98 4.19 241.11 4.19 586.83 4.17 Mfi,LT 1,565.73 1,122.39 1,010.25 1,234.36 Material [8]
standard fire exposure time of natural fire exposure time for minimum moment capacity of Safety factor γΜ,fi for safety factor for fast fire Safety factor γΜ,fi for fast fire 30 minutes 60 minutes 30 minutes 60 minutes 10-1 566.69 295.58 1.36 1.49 272.80 1.50 307.05 1.47 10-2 428.17 169.38 1.80 2.60 155.00 2.64 174.95 2.58 10-3 282.30 90.62 2.73 4.86 83.34 4.91 92.87 4.86 Mfi,LT Material model [8] 770.70 440.41 409.20 451.37 Table 8 Material safety factors for Shaw’s H cross section (Figure 6d) Probability of failure Pf Standard fire [17] Natural – Parametric fires [17] Moment Capacity(kNm) after standard fire exposure time of Safety factor γΜ,fi for Moment Capacity(kNm) after natural fire exposure time for minimum moment capacity of Safety factor γΜ,fi for Minimum moment Capacity(kNm) and safety factor for fast fire Safety factor γΜ,fi for fast fire 30 minutes 60 minutes 30 minutes 60 minutes 10-1 1176.35 779.40 1.33 1.44 701.56 1.44 881.69 1.40 10-2 953.83 483.68 1.64 2.32 433.58 2.33 539.02 2.29 10-3 791.13 267.47 1.98 4.19 241.11 4.19 586.83 4.17 Mfi,LT Material [8] 1,565.73 1,122.39 1,010.25 1,234.36
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