DESIGN a welded plate girder to support two columns spanning (50+R) feet in a high-rise building, floor load delivers an equivalent uniform load of 3 kips/ft to the top flange along with the two point loads shown in Fig. 3. This load does not include the self-weight of the girder. Use AISC specification for A36 steel. - (90+R) kips I (50+R)/4 ft (105+R) kips L (50+R)/3 ft (50+R) ft Fig. 3 5(50+R)/12 ft 3 kips/ft