I am looking at a pipe rack that is going to add a new pipe with ASCE 7-16 loads. There has been discussion in my office about how to apply the non-structural pipe loads to the rack. Because it is ASME piping, the R factor per ASCE 7 Chapter 13 is 12. This compares to the R factor of 1 for the...
I am wondering if other engineers use safety factors on the 2021 IBC presumptive load bearing values or overturning checks. Everyone at my office just uses a 1.5 safety factor on all overturning, sliding, and soil bearing checks, but I am wondering if that is too conservative. No one was able to...
I came across the article "Evolution of the Braced Tube" by Structure Magazine that shows the 800 Fulton Market in Chicago as having an X brace with the center of the X shifted up. The article states that when the members are deflection controlled this is more efficient, but doesn't get into...
