I am looking for some feedback regarding steel moment frames. In 15 years I have not had a residential plan come in with anything other than a "preapproved"(Simpson) moment frame. I now have someone proposing to have a local shop fab up a moment frame. I am hoping some of you can help me with standards for the design and construction of this system. I am aware that the steel is required to be ASTM A992 grade 50 for shapes and plates. I am aware of the structural welding requirements of AWS D1.1. What else should I be looking for? All help appreciated.
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