(Solved): 3. (a) A triangle in plan tall bulding af stem width ia lscabad at a looation whth 50 years reoum pa ...
3. (a) A triangle in plan tall bulding af stem width ia lscabad at a looation whth 50 years reoum pariod pask wind velocity of \( 45 \mathrm{~m} / \mathrm{s} \). What is the macimum nohural period of the bulding to avold vultar alodding eflecti which wil libly cause excessive acroes wind viration? (Nate use 10 years retum period peak wind velocly to check vibratonl. (4 Marka) (b) The euposure factar an is the product of 3 tasten. Name the \( \$ \) factom and describe their functions to wind presasure/ablocily. [5 Marks) (c) A 70 m tall Inclusing a short parapet wall HDB building in Singapase, shown in Figure C3. has a plan dimersinn af 20 m I 60 m . Can the wind friction be disvegarded ehen foe wind divection is paralal to the linger aide of the bulding? (Notec Elaborate your angaer with calculajorns). [3 Marka) Note: Question No. 3 continues en pape 7. 6 CVE166 (a) What in the reason for using the correlation reduction factor foar? What is The fier for the HOB builing deecribed in G3/Gi? (3 Marks) (e) The HDE buiding dedicribed is O3(c) is locased on a fla ground. Find fie highest wind presourelmuction for solar panel of \( 25 \mathrm{~m}^{2} \) sive boved on Eurocode 1 Part \( 1-4 \) and MN SS EN 1991-1-4. Additional data are lsted below: * Structurnal factor \( \mathrm{C}_{0} \mathrm{C}_{d}=0.9 \) * Turbulance factor \( \mathrm{ka}=1.1 \) (10 Marka)
