Hi Folks,
I am designing a PWF and have a couple of questions regarding the backfilling.
In the Preservative Wood Foundation Design Specification, the average backfilling equivalent fluid pressure is given as 30psf/ft.
1) How's this number (30psf/ft) derived?
2) Is gravel only backfill...
Does anyone know how to generate load combinations with pattern load for snow or live load?
I assume, RISA Floor is doing that but I can't find it in RISA2D or 3D.
Any thoughts?
Appreciate your response!