Nicholas Sebald's Activities

Instability error - single story platform - rigid diaphragm - OCBF

Nicholas Sebald — Tue, 18 Apr 2023 18:21:17 GMT

Hello,

I am designing a single story platform with a concrete deck (rigid diaphragm) and OCBF's. I am trying to model the columns as pin-pin (fixity shown in screenshot below) and run the lateral model, however, I am running into the following instability error. Can you please provide insight on how to resolve this error?

Please let me know if you need anymore info. I have uploaded the model for reference as well.

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Fri, 11 Jun 2021 00:03:01 GMT

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Seismic Provisions Joint Code Check Output Clarification

Nicholas Sebald — Fri, 11 Jun 2021 15:12:50 GMT

Hi,

I wanted to clarify the output for the seismic provisions joint code check in regards to continuity plate. I am unclear of what the 0.66" under "Tf Prov (in)" is indicating. Do I need a 0.66" thick continuity plate? Also, how is RAM arriving at this 0.66 number? Last question, does this output also show that doubler plates are not required? Thanks for your help.