Question 3 The base width of stiffeners is varied. The table 2 and figures 2 below shows the position in bending the torsional loadings stiffeners. The stiffeners are set to be equal to the wall thickness. By referring to the table 2 and the figure 2 below, answer the questions Table 2: Effect of External Vertical Bottom Stiffeners Bending Torsion Structure amm Per cent weight Stiff/Wt. ratio Per cent rigidity 100.0 247.0 Per cent rigidity 100.0 Stiff/wt. ratio ST - UR 100.0 1.000 1.000 ST-A.M. 223.8 ST - A.1 60 103.8 124.8 1.203 146.0 1.408 ST - A.2 60 103.8 124.6 1.200 150.1 1.449 ST - A.3 60 108.6 132.6 1.221 153.9 1.416 ST - A.4.1 20 107.6 115.4 1.073 131.9 1.226 ST - A.4.2 40 111.4 185.9 1.669 171.1 1.536 ST-A.4.3 60 115.5 189.8 1.643 176.2 1.526 ST - A.4.4 80 119.4 193.1 1.617 177.2 1.484 ST-A-4 ST-A-5 ST-A-6 DOE LEMAAN ST-A-1 ST-A-2 ST-A-3 Figure 2: External Vertical Bottom Stiffeners b) Does applying the external rib will enhance the rigidity if the column? Question 3 The base width of stiffeners is varied. The table 2 and figures 2 below shows the position in bending the torsional loadings stiffeners. The stiffeners are set to be equal to the wall thickness. By referring to the table 2 and the figure 2 below, answer the questions Table 2: Effect of External Vertical Bottom Stiffeners Bending Torsion Structure amm Per cent weight Stiff/Wt. ratio Per cent rigidity 100.0 247.0 Per cent rigidity 100.0 Stiff/wt. ratio ST - UR 100.0 1.000 1.000 ST-A.M. 223.8 ST - A.1 60 103.8 124.8 1.203 146.0 1.408 ST - A.2 60 103.8 124.6 1.200 150.1 1.449 ST - A.3 60 108.6 132.6 1.221 153.9 1.416 ST - A.4.1 20 107.6 115.4 1.073 131.9 1.226 ST - A.4.2 40 111.4 185.9 1.669 171.1 1.536 ST-A.4.3 60 115.5 189.8 1.643 176.2 1.526 ST - A.4.4 80 119.4 193.1 1.617 177.2 1.484 ST-A-4 ST-A-5 ST-A-6 DOE LEMAAN ST-A-1 ST-A-2 ST-A-3 Figure 2: External Vertical Bottom Stiffeners b) Does applying the external rib will enhance the rigidity if the column