Adam, don't worry about how the other engineers in your office can whipp up design lickety split. Often when you are first starting out you need to do everything from scratch, then as you get more farmilliar with the codes and develope a feel for the material you too can design quickly. Right...
I am adding hoist beams and cranes to the underside of a roof in an existing building, and am not sure about the loading combinations. I am using the National Building Code of Canada where live load is described as min loads, snow and cranes including impact. I don't think it is reasonable to...