QUESTION TWO $(40)$

a$)$ Draw the Axial, Shear, and Bending moment diagrams and qualitative deflected shape for the frame shown in Figure Q$2.$ Joint A and D are supported with a roller and a pin support respectively and joint B is fixed. Show all your calculations and label your drawings

$$ accordingly.

b$)$ Suppose column BD is made from Rectangular Hollow Section $1501005m.$ Determine the critical buckling stress for the column BD$.($for $k$ value refer to Figure $2$ in Annexure A and $E=200{10}^3$MPa $).$

Figures Q$2$: Frame with loading