Question: A five - story building has the elevation shown below. The building has typical column grids at 3 0 f t . on center in

A five-story building has the elevation shown below. The building has typical column grids at 30ft. on center in both orthogonal directions. The floor dead load is 100psf and the live load is 50psf. The roof dead load is 30psf with a flat roof snow load of 40psf. In order to span over a large atrium area at the ground floor, a series of transfer plate girders spanning 60ft. and spaced at 30ft. on center are to be used at the second-floor level. Neglect any live load reduction and ignore diagonal tension field action. Assume grade 50 steel and that the compression flange is fully braced.
a. Calculate the maximum moment Mu and Vu for a typical interior secondfloor transfer plate girder to support the column loads from above as well as the second floor.
b. Perform initial sizing of the interior plate girder based on the Moments and Shears calculated in part (a) above and (:tw
A five - story building has the elevation shown

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