Wood Post Knife Plate Design
Wood Post Knife Plate Design
(OP)
Bottom Line up Front: How does one calculate the capacity of the bolt-wood interface for bolts going through a knife plate?
Background: An owner wants to connect a 10" post to the concrete footer using a knife plate. I have about 7500 lb (LFRD) uplift I need to chase through this connection. How do I go about sizing the bolts and the connection types? I just realized I only know the NDS Connection Tables (Table 12A - S). Using an internal knife plate and through bolts isn't one of the options in there (unless I am missing something).
Thank you all in advance.
Background: An owner wants to connect a 10" post to the concrete footer using a knife plate. I have about 7500 lb (LFRD) uplift I need to chase through this connection. How do I go about sizing the bolts and the connection types? I just realized I only know the NDS Connection Tables (Table 12A - S). Using an internal knife plate and through bolts isn't one of the options in there (unless I am missing something).
Thank you all in advance.






RE: Wood Post Knife Plate Design
No worries.
Mike McCann, PE, SE (WA)
RE: Wood Post Knife Plate Design
RE: Wood Post Knife Plate Design
RE: Wood Post Knife Plate Design
The clip below shows how one might use the tool that Deker recommended to simulate the condition. No doubt your "side members" are thicker than 0.5".
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Wood Post Knife Plate Design
Great publication...
Dik
RE: Wood Post Knife Plate Design
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.