I’m working on a project with curved GLB roof framing, ~16’ span, 5’o.c. w/ joists hung btwn them. The architect is expecting a tie rod at plate level, but I’m wondering how to calc the thrust at the base of these things. Considering how they’re manufactured, it seems like there should be a lot less horizontal force at the plate than a simple statics analysis would indicate.
thanks,
Gordon Goodell