Wind-SolarPanels (www.theengineeringcommunity.org).xlsx

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O
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2					PROJECT :								PAGE :
3					CLIENT :								DESIGN BY :
4					JOB NO. :				DATE :				REVIEW BY :
5	Wind Design for Rooftop Solar Panels Based on ASCE 7-16
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7		INPUT DATA & DESIGN SUMMARY
8		Exposure category (B, C or D, ASCE 7-16 26.7.3)						B
9		Basic wind speed (ASCE 7-16 26.5.1 or 2015 IBC)					V =	115	mph, (177.03 kph)
10		Topographic factor (ASCE 7-16 26.8 & Table 26.8-1)					Kzt =	1	Flat
11		Mean roof height					h =	17	ft, (6.10 m)
12		Mean parapet height (ASCE 7-16 Figure 29.9-1)					hpt =	0	ft, (0.61 m)
13		Overall building length					WL =	46	ft, (55.47 m)
14		Overall building width					WS =	42	ft, (33.53 m)
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16		Array location
17			To North	dN =	1	ft, (15.24 m)
18			To South	dS =	1	ft, (3.05 m)
19			To West	dW =	1	ft, (24.38 m)
20			To East	dE =	1	ft, (9.14 m)									Solar Panel Net (toward & away) LRFD Pressure
21											North-West corner 1 =	34,4	psf, ( 1648		N/m2)
22		Effective wind area for structural element being designed									North-East corner 2 =	47,4	psf, ( 2268		N/m2)
23			A =	5	ft2 (	0.29	m2)				South-West corner 3 =	47,4	psf, ( 2268		N/m2)
24											South-East corner 4 =	56,0	psf, ( 2680		N/m2)
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26															Min pressures for any solar arrays on the roof
27											pmin =	22,9	psf, ( 1099		N/m2)
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29
30		ANALYSIS
31		Velocity pressure
32		qh = 0.00256 Kh Kzt Kd Ke V2				=	18,43	psf
33		where:	qh = velocity pressure at mean roof height, h. (Eq. 26.10-1 page 268)
34			Kh = velocity pressure exposure coefficient evaluated at height, h, (Tab. 26.10-1, pg 268)									=	0,70
35			Kd = wind directionality factor. (Tab. 26.6-1, for building, page 266)									=	0,85
36			h = mean roof height									=	20,00	ft
37			Ke = ground elevation factor. (1.0 per Sec. 26.9, page 268)
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39		Design pressures for rooftop solar arrays
40		p = qh (G Crn)
41		where:	p = pressure on solar panels (ASCE 7-16 Eq. 29.4-5).
42			pmin =	16,00	psf (ASCE 7-16 30.2.2)
43			(G Crn) = gp gE [(G Crn)nom (gc)]				, (ASCE 7-16 Eq. 29.4-6)
44			gp =	1,00	, (ASCE 7-16 Eq. 29.4-6)
45			gE = arry edge factors, (ASCE 7-16 Eq. 29.4-6).
46			(G Crn)nom = nominal net pressure coefficient, (ASCE 7-16 Figure 29.4-7).
47			gc =	0,90	, (ASCE 7-16 Eq. 29.4-6)
48			w =	0,00	deg, angle of plane of panel to roof. (ASCE 7-16 Figure 29.4-7)
49			Lp =	5,00	, chord length of solar panel. (ASCE 7-16 Figure 29.4-7)
50			Lb = Min [ h , 0.4 (h WL )0.5, WS] =					20,00	ft
51			An = 1000 A / [max(Lb , 15 ft)]2 =				7,83	ft2 , (ASCE 7-16 Figure 29.4-7 Notes)
52			h1 =	0,50	ft, solar panel height above roof at low edge.
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54			Corner	No. Zone	0o - 5o	(15o - 35o) gc		(G Crn)nom gc		gE	p (psf)
55			1	1	1,12	1,37		1,25		1,50	34,42
56			2	2	1,49	1,94		1,71		1,50	47,36
57			3	2	1,49	1,94		1,71		1,50	47,36
58			4	3	1,70	2,35		2,02		1,50	55,98
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60		Minimum pressures for any solar arrays on this roof
61		p = qh (G Crn) =		22,95	psf						0,8030501089
62		where:	gp =	1,00
63			gE =	1,00
64			gc =	0,90
65			(G Crn)nom =		1,38
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72						LICENSE NUMBER: Package License Including New Software Based on ASCE 41-17, ASCE 7-16, AISC 360/341/358-16
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74						www.Engineering-International.com
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