Mike,
with Poles, special connectors maybe required but for trusses, they shall be engineered and have the appropriate connectors. I am not sure if Simpson connectors are rated for eF3 or eF4 or even ef5 class tornados. They use the eF system nowadays. or EF (whatever).
The bottom line, we are...
With tornados, it might be worth considering aerodynamics of the building's form and allow the tornado to ride over. I would require the roof to be entirely tied and anchored to grown with each anchor with 1 Million psf pull up strength and anchored at intervals not exceeding 24" o.c.
I would...
fastline12
What state are you located in?
If it is an exempted building, I might be able to assist in the design. However, I am a building designer. If you are in a state that exempts SFRs under both architect and engineer's law. I could possibly work out the calcs.
However, I am in Oregon so...
Dave Adkin wrote: "dpa (Civil/Environme) 16 Sep 03 12:23
I was recently asked to design a rock retaining wall whose height varied from about 4 feet to 16 feet along a 150 foot course. I turned it down because I had never done one before. I have a bunch of questions about this type of...