Rotation of a point on beam

A point of the structure may be subject to a prescribed rotation. The displacement means that the 1D member is "cracked" and both parts are bent. The imposed load is clear from the picture below. The magnitude defined is equal to the angle between the tangents to two parts of the 1D member.

The definition of this load type and the meaning of the individual parameters is analogous to Point force on beam. However, due to the nature of the load, the number of parameters is reduced.