Using the LRFD procedure, select the lightest W10, 16 ft long beam-column in an unbraced frame. Based on a first-order analysis, the member supports the following factored loads: Pnt load of 148 k and Plt load of 106 k. The member also supports factored moments:Mntx moment of 92 ft-k and Mltx moment of 64 ft-k.The moments are equal at each end and the member is bent in single curvature. There are no transverse loads between the ends.Kx = 1.5,Ky =1.0,Pstory = 2800 k,Pe storyx = 72,800 k,Cb = 1.0 and Fy = 50 ksi.

c. Determine critical load and critical stress for the column/axial member. Justify selection of the formulas for the calculationsInformation provided: i) Boundary/end conditions: In this instance, the column is assumed to be fixed at both ends, simulating conditions where the column is integrally connected to the floor slabs above and below, a common condition in many mechanical design contexts. ii) External axial load: Assuming the column supports a floor with a uniformly distributed load, we've calculated the total axial load on the column to be 453.589 kN. iii) Properties of the column: The cylindrical column is composed of steel, a commonly used material with a known Young's modulus (E) of approximately 200 GPa. The steel has a yield stress of around 250 MPa and ultimate stress near 400 MPa. The diameter (d) of the column is 0.3048 m, providing a cross-sectional area (A) of π*(d/2)² = 0.073 m².

Need help with parts a-e

Design a wide flange W column 8 m in height to support an axial dead load of 1000 kN and a live load of 1200kN in the interior of a building. The column base is rigidly fixed to the footing and the top of the column isrigidly framed to very stiff girders. Assume that bracing is provided to prevent side sway in the weak axis/planeof the column (you don’t have to consider slenderness in this direction), but side sway is not prevented aroundits strong axis. Select an economical W shape.

Please help me answer this question.