10A. DIMENSIONING PART 1/4

greater category 2 weather conditions (e.g. direct wetting) Charging duration categories The strength of a member decreases with the duration of the load, which is why the Regulation divides actions into categories according to their duration (EC5 - 2.3.1.2): Duration category Period of time Load example Permanent over 10 years old same weight Long term 6 months to 10 years storage loads Midyears 1 week to 6 months imposed floor loads Short-term up to 1 week snow Instant wind, accidental loads The coefficients Kh , Kshape , Km are automatically calculated by the program according to the respective chapters of EC5. The designer can define his own values by unchecking the checkbox and entering the value in the corresponding field. • Kh is an incremental factor and depends on the type of wood, the size of the member and the type of loading. • Ksys is an incremental factor relating to continuous cross-sectional systems of cargo • Kcr is a decreasing coefficient with a constant value of 0,67 for shear • Kshape is incremental coefficient is incremental torsion • Km involves biaxial bending, alternately reducing one of the 2 torques