25 - Wind-load-calculation-as-per-IS-875-part-3.xlsx

	B	C	D	E	F	G	J	K	L	M	N
1	Wind load calculation as per IS 875 (Part -3)
2	Design wind pressure						Interpolation For K2			Interpolation For Ka
3	Basic wind speed (VB)		47	m/s	pg 51/pg 6		Height	K2		Area	Ka
4	Terrain category		2				15	0.91		25	0.9
5	Probability factor (k1)		1		pg 7/ table 1		12	0.874		48	0.8693333333
6	Topography Factor (k3)		1				20	0.97		100	0.8
7	Importance factor for cyclonic region (K4)		1
8
9	Wind directionality factor (Kd)		0.9	m/s
10	Area averaging factor (Ka)		0.8693
11	Combination faactor (Kc)		0.9		pg 16				Vz = K1K2K3K4Vb
12									Pz = 0.6*Vz^2
13									Pd = PzKaKd*Kc
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15	Height	Terrain and height multiplier (K2)	Wind pressure (Pz) N/m2	P (kN/m2)	0.7*Pz (kN/m2)	Pd max of 0.7Pz and P (kN/m2)
16	12	0.874	1012.4	0.712893295	0.709	0.713
17	0	0.9412	1174.1	0.827	0.822	0.827
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19		pg 8/ table 2
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23		Solidatory Ratio	pg 11
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