Cranes

If there are cranes in the structure, the MasterPort interface will not only set up the column stub members to support the crane, but will also evaluate the vertical and horizontal loads which the crane applies to the structure. Load cases which include the crane loads are automatically generated. There are options to consider Dead + Crane Loads case (ie, no live) and also to consider the crane loading as the leading variable action in an EC design.

The values entered in the above table will generate the column stubs and the crane reactions.

h1 is the height to the stub from the bottom of the column.

The position of the crane wheel runner rail is defined by the ev (vertical eccentricity) and eh (horizontal eccentricity) from the centreline of the column.

The cranes capacity should be defined in tonnes, along with the total crane self-weight, and the weight for the crab and beam.

Finally, defining the end clearance distance of the crab (Min D), the wheel centres (W), and whether the crane is electric of manual, gives the program enough information to calculate the standard vertical and horizontal frame loads.

If you have specific manufacturers information on the crane's capacity you can click on the  button and enter the information directly yourself.