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  1. RobStruct

    Snow Drift - Parapet - Corner of Roof

    I'm designing a building in Aurora, CO that will have 10'-0" tall parapets. The building is rectangular 77'x180'. My question is how should the snow drift at the corners of the building be calculated? Should I simply sum the North/South drift and West/East drifts together while using the maximum...
  2. RobStruct

    Fire Rating: Metal Stud Joists & Concrete Floor

    Can anyone point me in the right direction. We are hoping to use a floor system of cold-formed metal studs (14" deep @ 2'-0" o.c. max) & 0.6C non-composite roof deck with 2.4" of normal weight concrete (3" total slab thickness). We need a 1 hour fire rating. From what I can tell, the IBC does...
  3. RobStruct

    Underground Mech'l Duct

    Thanks for the feed back. To touch on a few items brought up. The trench will be water proofed and possibly filled with a flowable fill to eliminate the risk of ponding water. The Texas soils are very expansive, however they will be conditioned appropriately resulting in a maximum PVR of 3/4" or...
  4. RobStruct

    Underground Mech'l Duct

    I have a job in Dallas, TX. Interior slab is on grade. Some how the architect has brewed up the idea of running mech'l duct work under the building footprint to AC the building. This building is very much like a storage warehouse in that there will be large vehicles driving around the...

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