Can someone help me understand the following?
I can do it all, but I don't understand how M(z,cat) equals 0.79?
The Site Wind Speed, Vz, is all the five wind factors multiplied together
Vz = V * Mls* M(z,cat) * Mt * Mr (m/s)
The information for M(z,cat) is :
Terrain
Category 3
Building Height (m) 7.5
(z,cat) 0.79
The numbers pertaining to the above are taken from a table, I will recreate here :
Multiplier, M
(z,cat)
Height, z Terrain Category 3
(m)
≤3 0.75
5 0.75
10 0.83
15 0.89
I really don't get the relationship between 0.75, Category 3 and 0.79 are,
I don't understand what I need to do to have the answer equal 0.79?!
Can someone help me please?!
Thanks,
WTF