I have developed a pipe rack model with several basic load cases. I have developed different load combinations for both, ASD and LRFD. Under load conditions, I have assigned "Design-Steel" and "Service" for ASD combinations and "Design" for LRFD combinations. When checking for base plate and anchors, I notice none of the LRFD load combinations are accounted for. Please advise; provide documentation if possible. I also have the following questions:
1- Do I need all three types (Design-Steel, Service, Design) to design steel with ASD and anchors?
2 - What is the difference between "Design-Steel and Service"? Do I need both for ASD steel design only?
3- How is the Design (Hot-rolled ASD or LRFD) and load conditions type (3 mentioned) interact? Do they need to match (Hot-rolled ASD with Design-steel & Service or Hot-rolled LRFD with Design)?
I have exhausted resources (e.g.: manual, web) trying to understand the differences between them.
Thanks!