Wind Pressure Coefficients: roof_windward
ASCE 7-22 wind pressure coefficients — external Cp (Figure 27.3-1), internal GCpi (Table 26.13-1), low-rise GCpf (Figure 28.3-1), and gust factor G for MWFRS design of enclosed/partially-enclosed buildings
| surface id | roof slope deg | Cp or GCp max (dimensionless) | Cp or GCp min (dimensionless) | L B ratio | coefficient type | load case | notes | surface category | use with | x h ratio |
|---|---|---|---|---|---|---|---|---|---|---|
| roof_windward | 0 | -0.18 | -0.9 | all | Cp | MWFRS | Flat roof (0 deg) windward half x/h<=0.5; two values per figure | roof | qh | 0.5 |
| roof_windward | 5 | -0.18 | -0.9 | all | Cp | MWFRS | 5 degree slope windward half | roof | qh | 0.5 |
| roof_windward | 10 | -0.18 | -0.7 | all | Cp | MWFRS | 10 degree slope windward; Cp = -0.7 or -0.18 from figure | roof | qh | 0.5 |
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