Design a bearing plate of A36 steel to support a beam reaction consisting of 20 kips dead load and 50 kips live load. Assume that the bearing plate will rest on concrete with a surface area larger than the bearing area by an amount equal to 1 inch of concrete on all sides of the plate. The beam is a W27 × 94 with Fy = 50 ksi, and the concrete strength is fc′ = 3 ksi.
a. Use LRFD.
b. Use ASD.