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I have now confirmed that the 0.8 factor in Eq. 12.10-8 is in error. ASCE will be issuing an errata to both ASCE 7-16, where the formula originally appeared and also ASCE 7-22 where it also appears to correct this Thank you for being diligent in your review and sending the message over the forum...
It appears you may be correct. Members of the ASCE 7 seismic committee are reviewing this but the history is quite long and dates back to 2014 (when the Provisions were first consdiered). I hope to provide a more helpful response soon. -- Ronald Hamburger, SE Consulting Principal Simpson...
This message was posted by a user wishing to remain anonymous I believe there is a typo in the ASCE/SEI 7-22, Eq. 12.10-8. Would someone please verify? Alternative design provisions for diaphragms, including chords and collectors states that the design acceleration coefficient, Cpi = 0...
Design of Steel Lighting System Support Pole Structures, ASCE/SEI 72-21 provides design parameters applicable to self-supporting structures, with base plates for installation on a concrete pier foundation, or as direct embedded, backfilled poles with the base section being either steel or...
Minimum Design Loads and Associated Criteria for Buildings and Other Structures, ASCE/SEI 7-22 provides the most up-to-date and coordinated loading provisions for general structural design. This standard prescribes design loads for all hazards including dead, live, soil, flood, tsunami, snow,...