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RE: Tack Welds

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>The engineer who designed the new joists increased the size of all the 
>joist members even though it was an obvious failure of the tack welds.
>  In effect, locking the barn door after the horse escapes.
The failure was caused by omitted structural welds compounded by 
incomplete or slovenly inspection. The tack welds are not part of the 
structure. Making the members stronger doesn't counteract a connection 
failure--I've seen cases where stiffer, heavier members aggravate 
connection inadequacy.

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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