Euro Code Wind load calculation as per EN 1991-1-4
The calculation for wind load as per EN 1991-1-4 for a gas plant located in a terrain category I includes parameters such as a fundamental basic wind velocity of 32.30 m/s, a directional factor and season factor of 1.00 each, and various terrain factors and roughness lengths. Wind turbulence intensity and peak velocity pressure vary with height.
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Terrain Category |
I |
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Type of structure = |
Permanent |
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Location/area of structure = |
Gas Plant |
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Fundamental Basic Wind Velocity (Vb,o) |
32.30 |
m/s |
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Directional Factor (Cdr) |
1.00 |
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Season Factor (Cseason) |
1.00 |
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Basic Wind Velocity (Vb) |
32.30 |
m/s |
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Orography factor (Co(z)) |
1.00 |
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Roughness factor (Cr(z)) = |
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Roughness Length for Terrain category-I (Zo) = |
0.010 |
m |
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0.05 |
m |
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Terrain factor (Kr) = |
0.17 |
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Wind Turbulence intensity (Iv(z)) :- |
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1.00 |
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5.48 |
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Peak velocity Pressure (Qp(z)) :- |
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air density (ρ) = |
1.25 |
kg/m3 |
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Basic Wind Velocity (Vb) :-
Mean Wind Velocity (Vm(z)) :-
Roughness Length for Terrain category-II (Zo,II) =
standard deviation of the turbulence =
| GRADE ELE | HEIGHT ABOVE GRADE (M) | Vm(z) | Iv(z) | Qp(z) | |
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5 | 34.075 | 0.161 | 1.54 | |
| 110.00 | 10 | 37.876 | 0.145 | 1.81 | |
| 115.00 | 15 | 40.099 | 0.137 | 1.97 |