Formula 14

Formula

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000711

Mcr = 1.127 · π2 · 21,000 kNcm2 · 10,140 cm41 · 650 cm2 · 11 · 2,883,000 cm610,140 cm4  1.0 · 650 cm2 · 8,076.92 kNcm2 · 292.5 cm4π2 · 21,000 kNcm2 · 10,140 cm4  0.454 · 18 cm2  - 0.454 · 18 cm Mcr = 115,310 kNcm = 1,153.10 kNmλ¯LT = Wpl,y · fyMcr = 2,683 cm3 · 23.5 kNcm2115,310 kNcm = 0.739ϕLT = 0.5 · 1  0.34 · 0.739 - 0.4  0.75 · 0.7392 = 0.762χLT = 10.762  0.7622 - 0.75 · 0.7392 = 0.85 < 1

Formula 14

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