"1805mm" - 1 õppematerjal

“RAUDBETOONKONSTRUKTSIOONID. PROJEKT”

µ= = = 0.0623 fcd b eff d12 0.85 13.3 1387 606 2 µ = 0.0623 < µ c = 0.393 = 1 - 1 - 2 µ = 1 - 1 - 2 0.0623 = 0.0644 fcd b eff d1 0.0644 0.85 13.3 1387 606 A S1 = = = 1800mm2 fyd 340 2 Valin 2 18 + 2 25 + 1 20 A S1 = 509 + 982 + 314 = 1805mm - Kandevõime - 2 18 + 2 25 + 1 20 A S1 = 509 + 982 + 314 = 1805mm2 A S1 1805 1 = = = 0.0119 b w d1 250 606 A S1 fyd 1805 340 = = = 0.0646 fcd b eff d1 0.85 13.3 1387 606 0.0646 µ = 1 - = 0.0646 1 - = 0