A small mezzanine floor (shown in the framing plan below) is to be built as a storage area in an industrial building. The beams support a 6" thick concrete slab and a floor live load of 100 psf. Concrete weight is 150lb/ft3. Beam B1 is W 1650. 1. Calculate the ultimate distributed load, wu, supported by beam B1. (Include beam B1 self-weight.) (5 points) 2. Calculate the ultimate distributed load, wu, supported by beam B1. (Include beam B1 self-weight.) (5 points) 3. Assuming the compression flange is continuously laterally braced, what is the moment capacity, bMpx of a W 1650 ? Is this beam adequately sized? (5 points) 4. Calculate the ultimate moment, Mu, for beam B2. (Ignore beam B2 self-weight.) (5 points) 5. Assuming the compression flange of B2 is continuously laterally braced, choose the most economical size to resist Mu. (5 points)