Table 6 The determination criterion of wind-pressure non-Gaussian characteristics of the two greenhouses
Wind direction | Vaulted roof | Pitched roof | ||
|---|---|---|---|---|
The critical skewness coefficient S | The critical kurtosis coefficient C | The critical skewness coefficient S | The critical kurtosis coefficient C | |
0° | 0.25 | 3.60 | 0.18 | 3.61 |
15° | 0.08 | 3.84 | 0.12 | 4.24 |
30° | 0.06 | 3.87 | 0.08 | 4.21 |
45° | 0.07 | 3.81 | 0.09 | 4.16 |
60° | 0.10 | 3.75 | 0.11 | 4.20 |
75° | 0.07 | 3.90 | 0.10 | 4.20 |
(15° – 75°) | (0.08) | (3.83) | (0.10) | (4.20) |
90° | 0.04 | 4.21 | 0.18 | 4.04 |