ASCE/SEI 37 Provides Design Loads for Structures during Construction.
My questions is, are these loads applicable to tower cranes and exterior gantry cranes?
It appears not, so what is the governing document for design loads on cranes in the US?
There is an ASME standard for them, but I don't know if it covers design loads like a building code does- you can view the table of contents on the link, and any loading info would have to be pretty brief: