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  • Users: SMR8611
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  1. SMR8611

    Is Gravel Backfill Lighter?

    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...
  2. SMR8611

    Live Load Pattern RISA Software

    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!

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