Steel Buildings in Europe

Part 10: Technical Software Specification for Composite Beams 10 - 12 2.6 Partial factors 2.6.1 Partial factors on actions Within the field of application of the software, the partial factors on actions for the ULS combinations are:  G applied on the permanent actions  Q applied on the variable actions 2.6.2 Partial factors on resistances Expressions for design resistance refer to the following partial factors:  M0 is used for the resistance of the structural steel  M1 is used for the resistance of the structural steel, for an ultimate limit state related to a buckling phenomenon  c is used for the compression resistance of the concrete  V is used for the resistance of headed studs  s is used for the resistance of the reinforcement steel bars The values of the partial factors are given in the National Annexes. Recommended values are given in Table 2.1. Table 2.1 Recommended values for the partial factors Partial factors  G  Q  M0  M1  c  s  V Eurocode EN 1990 EN 1993-1-1 EN 1992-1-1 EN 1994-1-1 Recommended values 1.35 1.50 1.0 1.0 1.5 1.15 1.25 2.7 Other design parameters The values of the following design parameters have to be given:  is a coefficient for the shear resistance as defined in EN 1993-1-5 § 5.1. The value should be taken from the National Annex. The recommended value is 1.2. The percentage of imposed loads for the evaluation of the natural frequency (SLS) has to be given by the user.