Figure 5.4.7.4a Figure 5.4.7.4a In the storey of exercise 5.4.7-1 calculate the results for the following cases: (a) replacement of columns C5, C12, C14 with walls of cross-section 2000/300 parallel to the respective sides of the perimeter. Using the same file (sheet B_547-4a) and modifying the geometric data of the C5, C12, C14 from 500/500 to 2000/300 the results obtained are listed in the following table (k=5 and k=1,5 for the walls): The displacement of the centre of stiffness CT is δxo=2.84 mm. The maximum primary and secondary displacements are δ xx=3.37 mm (3.37/2.84=119%) and δxy=0.37 mm (0.37/2.84=10%) respectively, whereas the minimum values RE δxx =2.63 mm (2.63/2.84=92%) and δxy=0.12 mm (0.12/2.84=4%) respectively. rx=8.06 m, ry=9,60 m (E=797/1067), θz=0,00004929, Kθ=64.899.8 MN·m (b) replacement of the columns C12, C14, with walls of cross-section 2000/300 parallel to the respective sides of the perimeter. 
Figure 5.4.7.4b Figure 5.4.7.4b The results obtained from modifying the geometric data of the C12, C14, from 500/500 to 2000/300, in the same file (sheet B_547-4b), are listed in the following table (k=5 and k=1,5 for walls): The displacement of CT is δxo=2.83 mm. The maximum primary and secondary displacements are δxx=3.62 mm (3.62/2.83=128 %) and δxy=0.33 mm (0.33/2.83=12%) respectively, whereas the minimum values are δxx=2.49 mm (2.49/2.83=88%) and δxy=0.05 mm (0.05/2.80=2%) respectively. rx=7.69 m, ry=7,69 m (E=858/858), θz=0,00007498, Kθ=41.877.5 MN·m (c) replacement of the columns C5, C12, with walls of cross-section 2000/300 parallel to the corresponding sides of the perimeter. 
Figure 5.4.7.4c Figure 5.4.7.4c The results obtained from modifying the geometric data of the C5, C12 from 500/500 to 2000/300, in the same file (sheet B_547-4c), are listed in the following table (k=5 and k=1,5 for walls): The displacement of CT is δxo=4.84 mm. The maximum primary and secondary displacements are δxx=5.25 mm (5.25/4.84=108 %) and δxy=0.41 mm (0.41/4.84=8 %) respectively, whereas the minimum values are δxx=4.44 mm (4.44/4.84=92 %) and δxy=0.14 mm (0.14/4.84=3 %) respectively. rx=7.43 m, ry=11.58 m (E=560/1205), θz=-0,00005422, Kθ=55.325.8 MN·m (d) replacement of the column C5 with wall of cross-section 2000/300 in parallel to the respective side of the perimeter. 
Figure 5.4.7.4d Figure 5.4.7.4d The results obtained from modifying the geometric data of the C5 from 500/500 to 2000/300, in the same file (sheet B_547-4d), are listed in the following table (k=5 and k=1,5 for walls): The displacement of CT is δxo=4.80 mm. The maximum primary and secondary displacements are δxx=5.49 mm (5.49/4.80=114%) and δxy=0.41 mm (0.41/4.80=8%) respectively, whereas the minimum values are δxx=4.11 mm (4.11/4.80=86%) and δxy=-ΧΧ mm (0.96/4.78=4%) respectively. rx=6.74 m, ry=8,81 m (E=604/971), θz=-0,00009149, Kθ=32.303.2 MN·m Synopsis of results of the six cases
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