the concept of erection load 1, 2, 3...

Erection load is not pre-analysis load input generated by user.

What is erection load ? 

 

The Erection Load output is generated in construction stages and represents loads which are distinguished from the Dead Load (CS). Load Cases can be assigned to Erection Load output in the Analysis >> Construction Stage Analysis Control

You can find information on the different types of output from construction stages in the Online Manual (towards the bottom of the page linked below):

Please let us know if there is anything else.

Kind regards,

MIDAS UK