An interior wide-flange beam connects to a perimeter wide-flange beam using three 7/8-inch diameter high-strength bolts and a 1/2-inch thick plate. The connection incorporates a 1/4-inch fillet weld applied on three sides typically. Vertical bolt spacing is dimensioned with 2 inches to the first bolt and 4-inch spacing between subsequent bolts. A specific note dictates that where the interior wide-flange beam is part of a moment frame, a full-depth shear plate matching the perimeter beam must be provided.
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