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The design angle for a connected member is taken from LCS rotation angle of the member. It is to be defined in the properties of a connected member. The design angle has to be equal to 0, or a multiple of 180 degrees. In all other cases the geometry of a connection is not valid and design will end with an error.
It is crucial, that Alpha rotation angle is set to zero. Breaking of this rule may cause connection design discrepancies.
The direction of z-axis of local coordinate system for both beams in any splice connection has to be the same. Breaking of this rule may cause connection design discrepancies.
In SCIA Engineer it is possible to define both top and bottom structural haunch in a connection. The top haunch is placed on the positive LCS z-axis side of the beam. On the other side the bottom haunch is placed on the negative LCS z-axis side of the beam.
In column base connections, left side of a connection is considered on the positive LCS z-axis side of the beam. Right side of a connection is considered on the negative LCS z-axis side of the beam. The border between left and right side is centroid of the cross-section, calculated without roundings in the cross-section.