Steel Buildings in Europe

Title A.3 Worked Example – Simply supported, secondary composite beam 3 of 10 4 – 73 Yield strength Steel grade S355 The maximum thickness is 10,2 mm < 40 mm, so: f y = 355 N/mm 2 EN 1993-1-1 Table 3.1 Note: The National Annex may impose either the values of f y from Table 3.1 or the values from the product standard. Profiled steel sheeting: Thickness of sheet t = 0,75 mm Slab depth h = 120 mm Overall depth of the profiled steel sheeting h p = 58 mm Trapezoidal ribs b 1 = 62 mm b 2 = 101 mm e = 207 mm Connectors: Diameter d = 19 mm Overall nominal height h sc = 100 mm Ultimate tensile strength f u = 450 N/mm 2 Number of shear connectors studs n = L / e = 7500 / 207 = 36 Number of studs per rib n r = 1 0,5h p h p h sc h h 0 b 1 b 2 e Figure A.3 Trapezoidal decking Concrete parameters: C 25/30 Value of the compressive strength at 28 days f ck = 25 N/mm 2 Modulus of elasticity of concrete E cm = 33000 N/mm 2 EN 1992-1-1 § 3.1.3 Table 3.1