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ASCE 7-16 (and 7-22) section 12.9.1.4.2 states that, if the MRSA drift base shear is < Cs*W where Cs is determined in accordance with Eq. 12.8-6 (or 12.8-7 in ASCE 7-22), then the MRSA drifts are scaled up by Cs*W / Vt. There seem to be two interpretations of this provision: (a) scale up to Eq....
There is overlap between components covered by ASCE Chapters 13 and 15. Philosophically, Chapter 13 covers relatively small components supported above grade in a building and Chapter 15 covers nonbuilding structures (large components) supported at grade. As I mentioned there is overlap between...
Currently API is using chapter 13 of ASCE for design of pipe supports regardless of whether they are attached to a building or not. In my mind pipe supports not attached to a building would be designed per chapter 15 and not chapter 13 as they are not a mechanical/electrical component of a...
ASCE 7-16 Commentary Section C13.4.6 states that for friction clips “under no circumstances should they be relied on to resist sustained gravity loads” because sustained gravity loads could slip out of the friction clip as the friction diminishes over time. Please note that Section 13.4 states ...
“The provisions of ASCE 7-16 Chapter 13 cannot be circumvented by not attaching nonstructural components to the structure. Components falling from structures have historically been responsible for many deaths and injuries. The intent of Chapter 13 is for these components to be anchored to the...
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