HomeMy WebLinkAboutSTRUCTURAL CALCULATIONSFF3 1 5 Z019
-ST.-Lucie-County,.
%,R
STRUCTURAL CALCULATIONS
for
Solar Photovoltaic System
Project: Defabio Residence
Address: 913 Jackson Way, Hutchinson Island, FL 34949-8518
GSN: 1901005
INDEX
Scope and Data
ENV Data & Calculations
Module and Attachment Loads
Wind Details & Roof Zones
Module Specification
Attachment Detail
Attachment Detail
Span Table
Rack Certification & Load Table
PAGE
1
2
3
Al
A2
A3
A3a
A4
A4a
SCANNED
BY
St. Lucie County
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CENSF F�
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wc�/�
STATE OF ° G;
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s/ONA1.E
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1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations.
Project: Defabio Residence No. 1901005
Analyst: Amjad Mardi Revision
GOmOLAR
ter' - Engineer: Holly Hoover, PE
0-- Step 1: Scope and Data
Purpose: Determine Wind Loads on MWFRS Solar Equipment
Method: Directional Procedure for Appertenances
Reference Standards: FBC 2017 (ASCE 7-10/7-16, Chap. 26-30), NEC 2015 (Art.690), IBC 2015, HUD
hr
Risk Category II Table 1.5-1
he lie Exposure Category C Sec. 26.7.3
ti 1
ELEVAMON
STRUCTURE DATA
ABBR
Bldg Type
Enclosed
Low -Rise <60 ft, hr < LHD
Sec. 26.2
Roof Construction
Gable
Composite Shingle
Field Survey (FS)
Mean eave height
he
8.0
ft
FS/Eagleview
50 %eave height
4.0
ft
Mean roof height
hr
14.0
ft
"
40% mean roof height
5.6
ft
Calculated
Primary Roof Slope (0)
4:12
18
deg
Eagleview
Parapet height
hpt
N/A
ft
FS/Eagleview
Mean canopy height
h,
N/A
ft
"
Building length
Wt
69.0
ft
"
4% building length
2.8
ft
"
Building width
Ws (B)
46.0
ft
"
10% Least Horiz. Dim.
LHD
4.6
ft
Calculated
Dead Load
D
20
psf
HUD
Live Load
L
20
psf
I.
PV MODULE(M)DATA
ABBR
SOURCE
Chord Length
Lp
5.56
ft
Module Spec. (A2)
Width
w
3.28
ft
"
Area
A
18.25
ftz (panel : panel gap > 0.25 in)
"
Thickness
T
0.11
ft
"
Weight
W
41.45
lb
"
Low Module Edge
hl
0.5
ft
See: Plan Sheet S1, S2
High Module Edge
hz
0.5
ft (10 in min.)
"
Angle to roof
w
0
" (tolerance of 2°)
Calculated
Distance to Roof Edge =
2h2
1.0
ft (min.)
Test Pressure
113
psf
Design Pressure
76 psf
Test Pressure
-84
psf
Design Pressure
-56 psf
1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations. 1
Project: Defabio Residence No. 1901005
Analyst: Amjad Mardi Revision
GOLUItJSOLAR
Engineer: Holly Hoover, PE
i
Step 2-7: ENV Data &Calculations
ENVIRONMENTAL DATA
ABBR
ASCE Source
Basic Wind Speed
V
160
mph
ASCE 7 Hazard Tool
Use per Bldg. Dept.
V
170
mph
-Directional-factor -
- -Ka
0.85
mph
Table26.6-1
Elevation factor
Ke
1.0
< 1000 ft
Table 26.9-1
Topographic factor
Kn
1.0
Table 26.8-1
V pressure exposure
K,h
0.90
Table 26.10-1
Gust effect Factor
Gf
0.85
Rigid Bldg
N/A
Mean elevation
h
14.0
ft
Velocity pressure =
q,=h
57
psf = 0.00256 Kr Kt Kd Vz
a = 4.0
h/B = 0.3
Factors
Range
Equalization
ya
0.40
(Figure 29.4-8)
'a"rl` �_
Array Edge
-YE
1.50
Exposed (-)
K ®J _ K ® A
ArrayEde
g
-/E
1.00
All (+) Nonexposed (-)
1 I I I
Parapet
-/p
-
min (1.2, 0.9+hpt/h)
1 I 1 1
Chord
'/C
3.94
max (0.6+0.06Lp, 0.8)
Exposed Panel within
1.51-p
8.3
ft
1 1 I 1
Edge Distance > 2h2
d1
1.0
ft (min)
I I 1 1
I 1 I 1
iSF
t ®
Array Separation =
dZ>
4.0
ft
PLAN
Gable roof
Determine Wind Pressures P = gh(GCp)(yJ(ya) on Array as Composite
Total Modules:
26
Array Area:
474
Zone
M (#) M (SF)
GCp (+)
GCp (-) Exposed %
1
26 374
0.3
-0.8 26 100%
2
26 100
0.5
-1.2 26 100%
3
GCp: External pressure coefficient; Table C30.3-3. Gable Roof, 7° < 0 <_20° (Figure 30.3-2B)
Zone
-/E (-)
YE (+)
-/a
%
1
2
1.50
1.50
1.00
1.00
0.40
0.40
50%
50%
Wind Pressure (psf) P (+) P (-)
Module Design 76 -56
Effective 9 -34
Margin 67 -22 OK
1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 EMAIL: PERMITTING@GOLDINSOLAR.COM
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations. _2
Project: Defabio Residence No.
Analyst: Amiad Mardi Revision
GOSOLAR Engineer: Holly Hoover, PE
w Step 2-7: ENV Data & Calculations
SUPERIMPOSED LOAD
CONNECTOR CAPACITY
Roof Dead Load
20
psf
Truss Member Type
SYP
RooiLive Loa -
20
psf
Spacing
24
in o/c
Total Load
40
psf
Specific Gravity (G)
0.55
Section
2 x 4
in x in
Module Weight
2.3
psf
Source: NDS 2015 (TR12), FBC 2017
Safety Factor
2
Connector Type
Lag Screw
Diameter
5/16
in
Module Deadload
4.5
psf
Penetration
2.5
in (min)
Roof Deadload
20
psf
Number
2
Live Load
0
psf
Total Load
25
psf
25
<
40
OK
Withdrawal Capacity
Lateral Resistance
(Table 12J)
W = 1800 G3/2D %
307
Win
1-3/4", Z
140
lb
Short Duration Factor
1.6
Group Factor (Table 11.2.6A)
0.98
lb
W * SDF =
1227
lb / screw
LR * GF * STF =
220
lb
Total Capacity
2455
lb
Lateral Pressure (max)
85
psf
Uplift Pressure
-34
psf
Tributory Area
0.5
sf
Tributary Area (TA)
12
sf
Lateral Load on screws
42
lb/screw
Uplift
-408
lb
Safety Factor
1.67
Assembly Weight/TA
31
lb
Shear Force / screw
35
lb
Net Tension / 2 screws
2078
lb
35 <
220
OK
OK
Set Chord Edge Distance
(Table
12.5.1C)
Set Connector Spacing
(Table 12.5.11))
L/D =
8.0
psf
L/D 2 6.0; 5D =
1.6
in
L/D >_ 6.0; 1.51) =
0.5
in
Provide
2.5
in o/c
Provide
0.75
in o/c
1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 EMAIL: PERMITTING@GOLDINSOLAR.COM
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations. 3
t.�
G0 -E)IN:SOL.AR Wind Details and Roof Zones
41 -
't. BM'\
w
f
rVEW SpeaH" 160Vmph
25y0af MM 107Vmph
soy `:&Ii 1l9 VmpM1
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SMbn 2h123.
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SCPIP3 V = ZD'-Ir O ZME 2
O ZMEI
1109 US-1, VERO BEACH, FL 32960 (772)205-3244permitting@goldinsolar.com
Note: The Calculations are port of the Construction Documents and shall match in specifications, codes and regulations.
Al
GOLDIN:SOLAR
MODULE SPECIFICATION
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Im
P� IYl1 315 320 325 330' j
I:i EA] 10.04 10._0920.14 1020
V. M 3997 40.13 40.4D
Ir r W 955 9I 9.GG 971
vw M 32,98 3332 33.G5 33.98
7 1Y61 SIIi7 219.0 �— a193 a19.6
iRa1AL GPERATIMG CONDITIONS, NOV .
PY, On 233.4 2372 - _ _ 240.9 _ 2/.4.G ;
Ys M_ 3730 37.54 3779 38.04 �
Ier W 7.51 7.56 7.60---_-7.G4
YPS....__m 31.07 3139 31.70 32.01
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1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 permitting@goldinsolar.com
A2
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations.
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SNAFNRAOC SERIES COD RACIONG SYSTE14 TYPICAL ROOF LAYOUT
NOTES:
- STANDARD LAG BOLT SPEC ASSUMES
5116' LAG BOLTS WITH 25-
EMBEDMENTIN ROOFSTRUCTURAL
MEMBERS/RAFTERS
-TORQUE ALL(G°HARDWARE TOTHE
FO.LOWU.G:
- SILVER S.S. ID 16 FT-LBS
- BLAIX S.S. 7.9 FT-LBS
RAILCAN MOUNT TO EITHER SIDE OF
POST (UPSLOPE vs DOWNSLOPE)
- FOR UNEVEN ROOF SURFACES, USE
UP TO TWO LEVELING SPARS PER L
FOOT OR STANDOFF. SEE DRAWING
'STANDARD RAIL LEVELING' FOR
DETAILS AND LIMITATIONS
•RAILSPAN'
DISTANCEBETWEEN
ROOF ATTACH HEN13
RROOFRAFTERS OR
STRUCTURALMERBERS
9NAPURAOC MODULE
MID CLAMPS
'RAIL END OVERHANG' (MOTTO EXCEED
M% OF ACCEPTABLE RAIL SPAN 1
(NOT TO EXCEED 30%
OR MANUFACTURER'S
RECOMMENDATIONS)
DES
rc&lNeuTek nlA.^ St00D(6 SER�SIODTYPICALlATOUf F
fv I WIC 130113
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GO<C�Dsl„WSQLAR
ATTACHMENT DETAIL
BASE FOR PLANE 1-3 (COM
jPOSITE SHINGLE)
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1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations.
A3a
GO DL - IN�SOLAR
s
RACK SPAN TABLE
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1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations. A4
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The attached span tables Indu de conLdemtbn of the attachment device UPadry, based on U L 2103 bad testing
pedomaedby SnapNmdc Tested loadvalues are devebpedwith 5/16'0lagscrevn,withaneffecWeembedmemofl•
2/2'Intoa Douglas Fbsubsvaw,withareferencewithdrawal(uPNtorpAoset)bad'u cityofS32Ib,andareference
shear(sbe mlalemQ load mpadtyof270m for resisting short-term Wnd«xk ipnieads. Referencavaluesarelhe
baxvalues,befommyadjwtmentismdeparlhe NDS. WtalWUominwaltem tc substmtMorwNchusealternate
fastenersshe0 bepermdtted; provided Uutthe tastenerhas tested croadededved allaaableloadcapacities,and mecU
one of the fdlovMg two of tech: A) The allowable bad values for lM alternate fastener shall meet «e+ceed the
allmbleYA" noted above f«the 5116, 0lag screws in Douglas Fir; «B) thespan length Wentifled in the'span
tables'shall bareduced aoonding to the more resuktiveof thefollowblgtwo formulas:
Ralf Span a TableSpan. Alrermre Reference IYlthdrawl Capacity
5321b
Or
Rail Span - Table Span . Altemate Reference Shear Capacity
270lb
These formulas Shall net be used to Increase the allowable span beyond the spans fated In the span tables.
Attachment Devimc
The span tables haw been grouped Into sepamtesets ofattachmemdevices aued'Sire, wNdrare presented below.
To use this table, find the attachment dMce to be used In the Est below, then read across to determine which bin the
attachmentisin The span may then be determined from thetabiewilh the comespondng Bin amber. Strunuml
deu0sfor thespitem and attachmentsmaybe loud In AppeMoG Note: Side loaddlreNm U parallel to roller.
Table 1:Allmableload Capacities of Snpfirad F1uskrMountAtuchmenl DOOM
8I50 Scm Wow Balaverd SWo 150. Rowrao, CA96661
1 916.9613960 m 916.961.396S w procom
f :f tar — 1 1 F10",rv.o
wwnn�ry,:r
AltaNment Ocvice Name:
(lln No.
Madmum RmNonlopds
Dawn
UD
Side
Standard Base Seam Clamp with L•Foot
Wide Dam Scam ClamDwiN LFoot
I
235
235
III
UnNcnalTOe Hook
I
PolTilc Hank
2
394
318
417
Na�cr Bdl[tamp
Hashed L•Foot(9i Deg)
3
1469
309
ISi
TdaAeDbCerment
4
1333
669
93
AB Purymal•iWt(90 Deg(
Umbrella Caret, pt
Corrugated Straddle Blod with L FootMe
WI Roof Box withL•Foot
S
78B
405
x
Metal goal BawdN)b Standoff
I36
5•I/21n Standoff on 4-Hole Box
71n HD Standoff on 6• Nolc Box
5.1/ZIn, Tin, ore•1/1' Standoflon 1-Hole Oase
8•Il2ln Standollon4NokBase
6
788 i
045
163
D
A
d
rD