"801mm2" - 1 õppematerjal

“RAUDBETOONKONSTRUKTSIOONID. PROJEKT”

9 ( 0.85 13.3 + 0.02 340 ) b= A = 111448 = 334mm Valin posti mõõduks b = 350mm NSd - fcd A 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