A column for a building is made by encasing a W× 15 wide-fiange shape in concrete, as show...

A column for a building is made by encasing a W× 15 wide-fiange shape in concrete, as shown in Figure. The concrete helps to protect the steel from the heat of a fire and also shares in carrying the load. What stress would be produced in the steel and the concrete by a total load of 50 kip? See Section for concrete properties. Use f. — 2000 psi.

Figure:

                                                   

                                    FIGURE Steel column encased in concrete for Problem.