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Re: Anchor Bolts Again

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Mark,

Part of the answer may have to do with UBC Section 2106.2.14.1, which allows
anchor bolts to be bent anchor bolts, which can be pulled out of the masonry
by straightening of the bend.

Nels Roselund
Structural Engineer
>
>-----Original Message-----
>From: Mark Pemberton [mailto:Markp(--nospam--at)lbdg.com]
>Sent: Wednesday, September 27, 2000 11:19 AM
>To: 'seaint(--nospam--at)seaint.org'
>Subject: Anchor Bolts Again
>
>
>Does anybody know why the tensile strength of an anchor
>bolt in concrete is so much higher than in masonry?
>(Assuming the stress in the bolt governs)
>
>Concrete: Pss = 0.9Ab(fut)
>Masonry: Btn = 0.4Ab(Fy)
>
>For an A36 rod I get: Pss = 0.9Ab(58) = 52.2Ab
>                               Btn = 0.4Ab(36) = 14.4Ab
>
>Am I missing something?
>
>Mark Pemberton, P.E..
>



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