I was wondering if anyone out there knew the origin of equation 4-11 pg. 4.6 in the SMACNA Round Industrial Duct Construction Standards. The section modulus is calculated as follows: Sf=0.25ΩD^2t. This differs from the section modulus for a thin walled pipe that I am familiar with...
Hello,
I am trying to find any OSHA regulations regarding transitions from an inclined walkway to a fixed ladder. The ladder to be is at the midpoint of an inclined walkway that runs alongside a conveyor. I cant seem to find any guidance on how to deal with this. My first reaction was to...