I am trying to understand why the steel guys use 20psf for construction load while the concrete guys use 50psf.
The IBC2006 references the ACI which ACI 6.1.5 references ACI R347 where it states in 2.2.1 "The formwork should be designed for a live load of not less than 50psf of horizontal...
I have a curved stair that is free standing (not connected to a wall) and was wondering how others designed the stringer. I know how to do this if I were using steel, but the requirements are to be wood. The proposal is to use 10 strips of 1/4" plywood (glued & nailed) to make the beam. I...