Free concentrated loads are single forces or moments at any point of a surface.
The single forces act positively if the load arrows point in the direction of the positive axis of the respective coordinate system. The positive concentrated moments act right-handed about the corresponding positive axis of the coordinate system.
Entering in RFEM
Free concentrated loads can be entered and defined in RFEM using the menu "Insert" → "Loads" → "Free Concentrated Loads" → "Dialog Box", or in tables.