Exhaust stack wind/seismic/frequency calculations?

I was looking around for a tutorial on designing a furnace exhaust stack for wind/seismic/etc. and really not finding much useful online. There are a ton of software options to buy, and we used to use STAAD pro, but what I'm wanting to do is go through the hand calculations so I understand it better. I'm coming at this as a chemical engineer/process engineer who has to work with the mechanical/structural guys. Is there anything useful out there as a reference? I'm tempted to just sit and read STS-1 over and over but after one pass through it doesn't appear to really give me what I need, it's more a reference regulating you once you already know what you're doing.