Formula 7

Formula

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000704

χ = 1ϕ  ϕ2 - λ¯2  1ϕ = 0.5 · 1  α · λ¯ - 0.2  λ¯2 λ¯z = A · fyNcr,yNcr,y = π2 · E · Iyl2 = π2 · 21,000 kN/cm2 · 43,190 cm4650 cm2 = 21,187.3 kNλ¯z = 180.6 cm2 ·23.5 kN/cm221,187.3 kN = 0.924

Formula 7

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