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Re: big dig structural failure - epoxy anchors overhead supporting gravity

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On Jul 16, 2006, at 2:13 PM, Robert Kazanjy wrote:

It seemed  to me whether an anchor was going to survive a given load level was  related to the strain levles in the bonding material.
That's a useful observation, the main issue then being whether cleanliness or the resin itself as the issue.

I wonder how much of the discussion we've had in this thread is a repeat of discussions in the various 'big dig' structural engineering offices when the project was being put together. I also wonder if any of those engieers might be lurking on this list thinking, 'Where the hell were they when we were designing these anchorages?'

Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)

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