Does any one have some cookbook recipes for making space frames? The kind used to make those protection roofs over the roads around construction sites.

Make the columns and beams for my workshop was how I practiced my welding. I think however I oversized and ended up spending more than I should have.

I'm no structure engineer and I slept through my engineering science subject related to this so please layman terms and procedures only.

A reference to a cookbook would be nice.