DYNAMIC WIND PRESSURE (qs) (www.theengineeringcommunity.org).xls

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2	X Y and Partners					Project	SPORTS HALL - TYPE 1			Wind Loading Calculations
3	address					Client				Made by	Date	Job No
4						Description	DYNAMIC WIND PRESSURE (qs)
5	tel & fax nos					Description	DYNAMIC WIND PRESSURE (qs)			Checked	Revision	Page No
6	Originated from Wind Designers Workbook © 2000 Chris Buczkowski						Beta Test Version
7												Design in accordance with BS 6399 : Part 2 : 1997
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9		Dynamic Augmentation Factor (Cr)				Site Wind Speed, Vs
10		Dynamic Augmentation Factor (Cr)				Vb	Site	Sa	Sd	Ss	Sp	Vs
11		Kb	H (m)	Cr		m/s	Altitude					m/s
12		4	15	0,098		25	2	1,002	1	1	1	25,05
13		Cr okay - proceed with design										equ (8)
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15		Effective Wind Speed, Ve							Dynamic Pressure
16			Sb
17		Hr	He	Distance	Terrain		Sb	Ve	qs
18		m	m	km				m/s	N/m²
19		15	15	10	town		1,82	45,59	1274,14		equ (1)
20								equ (12)
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22		WIND NORMAL TO:			LONG FACE		SHORT FACE			Building Dimensions
23		Breadth B (m)			49,7		31,7			Length L (m)	Width W (m)	Height H (m)
24		Inwind depth D (m)			31,7		49,7			Length L (m)	Width W (m)	Height H (m)
25		D/H			2,11		3,31			49,7	31,7	15
26		Scaling length, b			30		30
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28		External pressure coefficients Cpe for vertical walls
29		Windward (front) face			0,726		0,646
30		Leeward (rear) face			-0,226		-0,146
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33		Size effect factor for external pressures, Ca
34		Site exposure type			B		B
35		Diagonal dimension (m)			51,914		35,070
36		Ca			#REF!		#REF!		fig 4
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38		Overall horizontal loads on building			pe	P	pe	P
39		Overall horizontal loads on building			N/m²	kN	N/m²	kN
40		Front face, å Pfront			#REF!	#REF!	#REF!	#REF!
41		Rear face, å Prear			#REF!	#REF!	#REF!	#REF!
42		Overall load, P			-	#REF!	-	#REF!	equ (7)
43		Note. -ve sign indicates suction.
44		Frictional Drag on side walls
45		Is depth D>b ?			Yes		Yes
46		Zone length C (m)			1,7		19,7
47		Area, As (m²/m height)			1,7		19,7
48		Frictional drag coefficient, Cf			0,04		0,04
49		Ca			#REF!		#REF!
50		Pf (kN/m height)			#REF!		#REF!		equ (7a)
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52		Frictional Drag on roof								Roof size effect factor, Ca
53		Is depth D>b/2 ?			Yes		Yes			Site exposure type		B
54		Zone length D (m)			16,7		34,7			Diagonal dim. (m)		58,949
55		Area, As (m²/m width)			16,7		34,7			Ca		#REF!
56		Cf			0,04		0,04
57		Ca			#REF!		#REF!
58		Pf (kN/m width)			#REF!		#REF!		equ (7a)
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