Interesting result with anchor design
Interesting result with anchor design
(OP)
Often times we will use Hilti profis or Simpson designer to get values on their respective products. However, I am seeing some funny results that I don't know how to interpret when evaluating a base plate dumping a moment into anchors as with a sign or light post.
Basically, as we increase embedment, the D/C goes down as there is more resistance to tensile breakout and pullout.However, once we cross a "depth threshold" (my name for t - this is what I cant figure out), the tensile breakout capacity starts to climb, often to over capacity. How is it that 8" of embedment works great, but 24" works way worse? I don't get it. What do I not understand?
I can contact Simpson for advice, but if there is some mechanism I am not familiar with, I figure you all might know!
Basically, as we increase embedment, the D/C goes down as there is more resistance to tensile breakout and pullout.However, once we cross a "depth threshold" (my name for t - this is what I cant figure out), the tensile breakout capacity starts to climb, often to over capacity. How is it that 8" of embedment works great, but 24" works way worse? I don't get it. What do I not understand?
I can contact Simpson for advice, but if there is some mechanism I am not familiar with, I figure you all might know!






RE: Interesting result with anchor design
RE: Interesting result with anchor 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.
RE: Interesting result with anchor design
Any chance I could get a link to that thread? I tried the search feature but was unable to find it.
RE: Interesting result with anchor design
RE: Interesting result with anchor design
RE: Interesting result with anchor design
Thanks x2 koot!
RE: Interesting result with anchor 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.
RE: Interesting result with anchor design
I totally agree with this assertion and thus my feelings towards Appendix D:
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RE: Interesting result with anchor design
Ok, now I have another question for a link: this time the one required to buy that shirt!