The figure below shows the arrangement of beams and girders that are used to support a5 inch thick normal weight reinforced concrete (150 pcf) floor slab for a small industrial

building. Design the beams AND girders assuming that they are simply supported. Assume full lateral support of the compression flange and a live load of 80psf. Note that the floor and arrangement of beams, girders, and columns continues in the same manner shown onall sides of the framing plan.