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Re: Seismic Design of a Garden Trellis

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Yeah, these things have a tendency to fall down during a seismic event or even a good wind.   San Jose isn't too far from where Loma Preita took place.  I'll bet the architect figured the bolted connections in the wood would work as a rigid joint!!.
Is he also putting potted plants on this? 

Neil Moore, S.E.
neil moore and associates
in zone 3

At 11:27 AM 9/12/2003 -0700, Gerard Madden, SE wrote:

On a recent residential project I worked on, the architect designed some trellises/pergolas thingies for a porch. They are not attached to the house and are free standing. The architect provided footings and thrubolt connections at the top and bottom. The plan checker wants seismic calculations done to get a permit.


Is common in California? I find it odd that someone can build a house without engineering (if they follow the prescriptive code) but not garden trellis to let plants grow over and create shade.