Angle between concrete compression strut and beam axis
Angle between concrete compression strut and beam axis perpendicular to the shear force can be calculated automatically or input by user in SEN depending on parameter Type calculation/input angle of compression strut. This parameter can be changed in Concrete setting (if 1D concrete member data is not defined) or in 1D concrete member data. There are the following options:
- Auto - angle of compression strut is calculated automatically as minimal value between θmin and θmax to condition according to equation 6.29 in EN 1992-1-1
where
| TEd | the design torsional moment |
| TRd,max | the design torsional resistance moment |
| VEd | the design resultant of shear forces |
| VRd,max | design value of the maximum shear force which can be sustained by the member, limited by crushing of the compression struts |
- User(angle) - angle of compression strut be input directly by the user as an angle. If the inputted value is outside of the interval θmin and θmax , the minimal or maximum value is taken into account for calculation
- User(cotangent) - angle of compression strut be input directly by the user as cotangent of the angle. If the inputted value is outside of the interval θmin and θmax , the minimal or maximum value is taken into account for calculation.
Minimal and maximal angle of compression strut is parameter of national annex and can be edit in Manager of national annex
