E11.2 a. based on gross area of tie equation [6.2]- as above – NRd = 70 x 10 x 275/103 = 192.5 kN based on net area of tie equation [6.3] – NRd = (70-22) x 10 x 0.9 x 410/(1.1 x 103) = 161.0 kN b. on slip resistance - equation [11.5] Fv = 2 x 0.7 x 1 x 0.5 x 800 x 245 x 10-3/1.25 = 109.80 kN c. on bearing capacity - equation [11.4] Fb = 2 x 400 x 20 x 10 x 10-3/1.25 = 128 kN Design resistance, = NRd 109.8 kN E11.3 Item yn Y Ay2 Iself A(cm2) (cm) Ayn(cm3) (cm) (cm4) (cm4) Plate 60 53.8 3228 17.4 18166 20 Beam 104 26.6 2746 10.0 10400 47500 164 5974 47520 = 5974/164 = 36.4 cm Ŷ 28566 + 47520 = 76086 cm4 Equation [11.9] shear flow/weld, q = VQ/I = 2500 x 60 x 17.4/76086 = 17.15 kN/cm = 1.72 kN/mm From 10.1 Use 12 mm fillet weld (strength = 1.87 N/mm)
E11.2 a. based on gross area of tie – equation [6.2]- as above NRd = 70 x 10 x 275/103 = 192.5 kN based on net area of tie – equation [6.3] NRd = (70-22) x 10 x 0.9 x 410/(1.1 x 103) = 161.0 kN b. on slip resistance - equation [11.5] Fv = 2 x 0.7 x 1 x 0.5 x 800 x 245 x 10-3/1.25 = 109.80 kN c. on bearing capacity - equation [11.4] Fb = 2 x 400 x 20 x 10 x 10-3/1.25 = 128 kN Design resistance, NRd = 109.8 kN E11.3 Item A(cm2) yn (cm) Ayn(cm3) Y (cm) Ay2 (cm4) Iself (cm4) Plate 60 53.8 3228 17.4 18166 20 Beam 104 26.6 2746 10.0 10400 47500 164 5974 47520 Ŷ = 5974/164 = 36.4 cm 28566 + 47520 = 76086 cm4 Equation [11.9] shear flow/weld, q = VQ/I = 2500 x 60 x 17.4/76086 = 17.15 kN/cm = 1.72 kN/mm From 10.1 Use 12 mm fillet weld (strength = 1.87 N/mm)
Solutions-to-the-end-of-chapter-exercises.docx