The meaning of the distances is displayed in the figure below:

• Length, Thickness, Height and Width - Sets respective dimensions of the purlin shoe.
• Number - Sets the number of bolts in beam direction.
• W3 - Sets the spacing of bolts in beam direction.
• Bottom Length / Side Length - Sets the straight parts of the purlin shoe in beam / purlin side, respectively.

• Bolt Style – Sets the bolt type (e.g. DIN 7990) for the connection, selected from the drop-down list.
• Dia – Sets the bolt diameter for the connection between roof girder and shape.
• Dia Side – Sets the bolt diameter for the connection between shape and purlin course.
• Workloose – Sets the clearance for the connection.
• e1 / e2 – Set the distance of foot hole / side hole, respectively.

• Group – When checked, the purlin socket and the roof girder are assigned to a construction group. If the roof girder is already belonging to another construction group, the purlin socket will be assigned to this other group.
• With Bolts – When checked, the bolts are assigned to the roof girder belonging to the construction group as well.
• Other Side – When checked, the purlin socket is attached at the opposite side of the purlin course.
• User Shapes – Enables using user shape for purlin shoe.
• Backer Plates –Sets the dimensions of backer plates in the corresponding input fields -the Width and thickness of filter plate. These plates have to be used between roof girder and purlin socket. If you enter the value 0, no backer plates will be created.
• Offset – Sets the offset value for the bolted connection in longitudinal direction. This is the offset of the holes to the center of the purlin in the direction of purlin. Positive values, moves the drill holes in shape direction of the purlin course; and negative values moves in opposite direction.

Displays the list of available database entries for the current connection.

Select the desired connection by clicking an entry. In the different list fields, the data on which the connection is based are displayed.