Steel Buildings in Europe

Title A.3 Worked Example – Simply supported, secondary composite beam 2 of 10 4 – 72 3.3. Partial factors  G = 1,35 (permanent loads)  Q = 1,50 (variable loads)  M0 = 1,0  M1 = 1,0  V = 1,25  C = 1,5 EN 1990 EN 1993-1-1 § 6.1 (1) EN 1994-1-1 § 6.6.3.1 EN 1992-1-1 3.4. Basic data The profiled steel sheeting is transverse to the beam. Span length: 7,50 m Bay width: 3,00 m Slab depth: 12 cm Partitions: 0,75 kN/m 2 Imposed load: 2,50 kN/m 2 Reinforced Concrete density: 25 kN/m 3 Steel grade: S355 3.5. Choose section Try IPE 270 3.5.1. Geometric properties Depth h a = 270 mm Width b = 135 mm Web thickness t w = 6,6 mm Flange thickness t f = 10,2 mm Root radius r = 15 mm Mass 36,1 kg/m Section area A a = 45,95 cm 2 z z y y t f t w b h a Second moment of area about the major axis I y = 5790 cm 4 Elastic modulus about the major axis W el,y = 428,9 cm 3 Plastic modulus about the major axis W pl.y = 484,0 cm 3 Modulus of elasticity of steel E a = 210000 N/mm 2