Steel Buildings in Europe

4 - 64 A.2 Worked Example – Simply supported beam with intermediate lateral restraints 1 of 7 Made by CZT Date 06/2009 Calculation sheet Checked by ENM Date 07/2009 2. Simply Supported Beam with Intermediate Lateral Restraints 2.1. Scope This example deals with a simply supported roof beam, with intermediate lateral restraints, under a uniformly distributed load:  self-weight of the beam  roofing with purlins  climatic loads. The beam is a rolled I-profile in bending about the strong axis. This example includes:  the classification of the cross-section  the calculation of bending resistance  the calculation of shear resistance  the calculation of the deflection at serviceability limit state. 2.2. Partial safety factor  G,sup = 1,35 (permanent loads)  G,inf = 1,0 (permanent loads)  Q = 1,50 (variable loads)  M0 = 1,0  M1 = 1,0 EN 1990 Table A1.2(B) EN 1993-1-1 § 6.1 (1) 2.3. Basic data Span length: 15,00 m Bay width: 6,00 m Roof: 0,30 kN/m 2 Climatic load: Snow 0,60 kN/m 2 Climatic load: Wind - 0,50 kN/m 2 (suction) Steel grade: S235 The climatic loads are characteristic values assumed to have been calculated according to EN 1991.