A s,tot = = fyd 1816 103 - 0.9 0.85 13.3 350 2 = = 1862mm2 0.9 340 0.15 NSd 0.15 1816 10 3 A s,min = = = 801mm2 fyd 340 0.003 A = 0.003 350 2 = 368mm2 A s = 1862mm2 Valin 4 25 A S = 1963mm2 - Kandevõime lo 1800 = =6 b 300 NSd1 =1 NSd Siis c = 0.92 ja sc = 0.92 fyd A s 340 1963 s = = = 0.48 fcd A 0.85 13.3 350 2 = c + 2 ( sc - c ) s = 0.92 + 2 ( 0.92 - 0.92) 0.48 = 0.92 NRd = ( fcd A + fyd A s ) = ( ) = 0.92 0.85 13
x 85, 6 = = = 0, 1591 < c = 0, 667 (159) d1 519 y = 0, 8 · x = 0, 8 · 85, 6 = 68, 6mm (160) MRd = · fcd · b · y · (d1 - 0, 5 · y) = 1, 0 · 16, 7 · 300 · 68, 6 · (519 - 0, 5 · 68, 6) = 173, 5kN m (161) Vahetoel (425 As1 = 1963mm2 ): fyd · As1 350 · 1963 x= = = 171, 4mm (162) 0, 8 · · fcd · b 0, 8 · 1, 0 · 16, 7 · 300 x 171, 4 = = = 0, 3180 < c = 0, 667 (163) d1 519
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