I have designed a few trusses in the past and these just look underdesigned. The lower chord (the ones pulled apart) is in tension and wants to pull apart -- just like they did. It has nothing to do with the support walls and everything to do with the roof load. Either snow or wind or probably a combination, just overloaded those lightly designed trusses and the weakest link broke. Just pull them together and put on adequate splice plates, like about twice as long, and things will be fine.
The trouble with the local codes boys is that they are cookbook engineers and have never really designed anything so have no experience to judge with. If their book has a misprint all is lost. So much for government control of everything in our lives. They guy that OKed that truss is not there to take the responsibiliy I bet!
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Today's Featured Article - The Collection of a Lifetime - by Sherry Schaefer. The larest gathering of orphan tractors ever assembled by one collector will be auctioned off on May 15 in Rock Island, IL. Ed Spiess was a well known tractor buff who spent most of his time dreaming of rare and unknown tractors. His background as an agricultural engineer sparked his interest in the unique attributes of the models built from 1939-1959.
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