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Recent content by JohnDeereSurfer

  1. JohnDeereSurfer

    Origin of Drilled Post Foundation Equations in IBC

    To those forum members that are still following this thread, this is an update. Since my last post I’ve been pursuing the two documents referenced by HTURKAK (dated: 10 Dec 23). I believe I located them and I can get copies of them. I haven’t done so yet because of copyright concerns...
  2. JohnDeereSurfer

    Origin of Drilled Post Foundation Equations in IBC

    Flight7, If I can find the original work, I will definitely post my findings here. Be advised though, tracking down 80 year old analyses is not easy. My search may or may not be fruitful. Stay tuned on perhaps a long term basis.
  3. JohnDeereSurfer

    Origin of Drilled Post Foundation Equations in IBC

    HTURKAK, Thank you for your example. I understand the equations are closed form. Their solution is not the problem. I can easily apply any of the three interpretations I have encountered for the caveat in the definition of (d) for the nonconstrained case (S1). I just do not know which...
  4. JohnDeereSurfer

    Origin of Drilled Post Foundation Equations in IBC

    JAE, Thank you for the references and Gaylord’s pages. I will review them as my investigation advances. HUTURKAK, At first glance, your excerpt from the 2018 IBC Illustrated Handbook looks like exactly what I’m looking for. I wasn’t aware of this publication. I’m struggling with the...
  5. JohnDeereSurfer

    Origin of Drilled Post Foundation Equations in IBC

    I’m trying to locate the original development of the equations in the IBC that sizes post footings for lateral loads. I’ve found them in the 2018 IBC, 2001 CBC, and as far back as 1970 UBC. In the 2018 IBC they are in sections 1807.3.2.1 (Eqn.18-1)& 1807.3.2.2 (Eqn. 18-2). I believe their...

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