For the rigid steel frame shown in Figure 3, all the vertical members have an identical cross section (section 1-1). Meanwhile, all the horizontal members have the same cross section (section

2-2). All members have a modulus of elasticity E= 2x10³ MPa. The same frame is subjected to two load cases, as shown in Figure 3. Consider the following load combination: 1.4 Case (a) + 1.7 Case (b) to evaluate the displacement and rotation at points A and B, and draw the shear force and the bending moment diagrams along A- B-C resulting from this load combination. Consider the weight of all elements in both load cases. • Use two elements to model each segment of the horizontal beam, (e.g. use two elements to model beam AB). 3.0 m 3.0 m 3.0 m D E F ਰਮੇਸ਼ 20 kN/m (case b) 15 kN/m (case b) 1 15 kN/m (case b) 10.0 m Ľ Ly-246 x 10 mm, 113.8 x 10 mm A-8600 mm², J-469 x 10¹ mm See 1-1 2 B See 2-2 20 kN/m (case b) Figure 3 30 kN/m (case b) 30 kN/m (case b) 30 kN/m (case b) 10.0 m 10 kN (case a) 20 KN (case a) 20 KN (case a) ly-370 x 10 mm, 1-18.6 x 10 mm A-10400 mm², J-691 x 10 mm