Wind Load Characteristics and Action Mechanism on Internal and External Surfaces of Super-Large Cooling Towers under Wind-Rain Combined Effects

Table 1

Classifications of rainfall intensity.

Grade of rainfall intensity	Light rain	Moderate rain	Heavy rain	Rainstorm	Downpour
					Weak	Moderate	Strong	Extreme
Daily (mm/24h)	10	25	50	100	250
Hourly (mm/h)	2.5	8	16	32	64	100	200	709.2