HomeMy WebLinkAboutSTRUCTURAL CALCULATIONSSTRUCTURAL CALCULATIONS
for
Solar Photovoltaic System
SCANNED
BY
St. Lucie County
Project: Ruscoe Residence
Address: 1717 Primrose Ct, Port St Lucie, FL 34952-2624
GSN: 1902047
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
BT.WCIE COUNTY
PLAN REVIEW
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1109 US-1, VERO BEACH, FL 32960 (772) 20S-3244 permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations.
_
Project: Ruscoe Residence No. 1902047
Analyst: Amjad Mardi Revision
GOGDIN'SOLAR
Engineer: Holly Hoover, PE
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
FhrRisk Category II Table 1.5-1
Jtc Ile Exposure Category C Sec. 26.7.3
1 1
ELEVATION
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
9.0
ft
FS/Eagleview
50 % eave height
4.5
ft
Mean roof height
h,
13.8
ft
"
40% mean roof height
5.5
ft
Calculated
Primary Roof Slope (0)
6:12
27
deg
Eagleview
Parapet height
hpt
N/A
ft
FS/Eagleview
Mean canopy height
h,
N/A
ft
"
Building length
WL
64.0
ft
"
4% building length
2.6
ft
"
Building width
W,(B)
60.0
ft
"
10% Least Horiz. Dim.
LHD
6.0
ft
Calculated
Dead Load
D
20
psf
HUD
Live Load
L
20
psf
"
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 andshall match in specifications, codes and regulations. 1
Project: Ruscoe Residence No. 1902047
Analyst: Amjad Mardi Revision
GO�LLOW SOLAR
Engineer: Holly Hoover, PE
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
160
mph
Directional factor
Kd
0.85
mph
Table 26.6-1
Elevation factor
Ke
1.0
< 1000 ft
Table 26.9-1
Topographic factor
Ka
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
13.8
ft
Velocity pressure =
q:=h
50
psf = 0.00256 Kr Kt Kd VZ
a = 4'4"
h/B = 0.2
Factors
Range
Equalization
ya
0.40
(Figure 29.4-8)
_�_y _�_ �{
I "I 1 I I`
Array Edge
yE
1.50
Exposed (-)
Array Edge
yE
1.00
All (+) Nonexposed
Parapet
yp
-
min (1.2, 0.9+hpt/h)
Chord
yc
3.94
max (0.6+0.06Lp, 0.8)
q O ; (q O p
Exposed Panel within
1.51-p
8.3
ft
Edge Distance > 2h2
dl
1.0
ft (min)
�
®T ®�-CaY®
Array Separation =
dz>
4.0
ft
PLAN
Gable roof
Determine Wind Pressures P = gh(GCp)(yE)(ya) on Array as Composite
Total Modules:
18
Array Area:
328
Zone
M (#)
M (SF)
GCp (+)
GCp (-) Exposed %
1
17
274
0.3
-0.8 17 100%
2
12
55
0.3
-1.7 12 100%
3
GCp: External pressure coefficient, Table C30.3-4. Gable Roofs, 20° < 0 <_27"
(Figure 30.3-2C)
Zone
-YE' (-)
yE W
ya
%
1
1.50
1.00
0.40
59%
2
1.50
1.00
0.40
41%
Wind Pressure (psf) P (+) P (-)
Module Design 76 -56
Effective 6 -35
Margin 70 -21 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: Ruscoe Residence No. 1902047
Analyst: Amjad Mardi Revision
GOLDIN'SOLAR
Engineer: Holly Hoover, PE
ML' Step 2-7: ENV Data & Calculations
SUPERIMPOSED LOAD
Roof Dead Load
Roof Live Load
Total Load
Module Weight
Safety Factor
Module Deadload
Roof Deadload
Live Load
Total Load
Withdrawal Capacity
W = 1800 G3/2D %
Short Duration Factor
W * SDF =
Total Capacity
Uplift Pressure
Tributary Area (TA)
Uplift
Assembly Weight/TA
Net Tension / 2 screws
Set Chord Edge Distance
L/D =
L/D >_6.0;1.5D=
Provide
CONNECTOR CAPACITY
20
psf
Truss Member Type
SYP
20
psf
Spacing
24
in o/c
40
psf
Specific Gravity (G)
0.55
Section
2 x 4
in x in
2.3
psf
Source: NDS 2015 (TR12), FBC 2017
2
Connector Type
Lag Screw
Diameter
5/16
in
4.5
psf
Penetration
2.5
in (min)
20
psf
Number
2
0
psf
25
psf
25 <
40
OK
Lateral Resistance
(Table 12J)
307
lb/in
1-3/4", Z
140
lb
1.6
Group Factor (Table 11.2.6A)
0.98
lb
1227
Ib / screw
LR * GF * STF =
220
lb
2455
lb
Lateral Pressure (max)
75
psf
-35
psf
Tributory Area
0.5
sf
12
sf
Lateral Load on screws
38
lb/screw
-426
lb
Safety Factor
1.67
31
lb
Shear Force / screw
31
lb
2060
lb
31
<
220
OK
OK
(Table
12.5.1C)
Set Connector Spacing
(Table 12.5.11))
8.0
psf
L/D >_ 6.0; 5D =
1.6
in
0.5
in
Provide
2.5
in o/c
0.75
in o/c
1109 US-1, VERO BEACH, FL 32960 (772) 205-3244 EMAIL: PERM ITTING�1a GOLDINSOLAR.COM
Note: The Calculations are part of the Construction Documents and sholl match in specifications, codes and regulations. 3
GOLDINfSOLAR
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Wind Details and Roof Zones
Wind Details x
:! I• KI Wind Speed 160 Vmph
,ill a I! 90year MR1 87Vmph - k
fI,I
25-year MRl 107 Vmph
sa.•u�N' '50-yearMRl 120 Vmph
Couch
100-year MM 131 Vmph -
-SovonrtiClubaltar /�' '
JI ���' Jt .J 11 Value provided is 3-sernnd gust wind speeds at 33 ft above groundfor I
? Exposure C Category, based on linear Interpolation between contours. Wind 1
-
1 speeds are Interpolated in accordance with the?-16 SterMerd. YAM speeds, i f
SENllpao Spin4b lnYoc
'C W�Coevawo. } correspond to opgoximateya 7% probability of exceetlanceN50 years
(annualexceedanceprbbab[ y=g.00l4 .MR1=700yeam).
�� en "U mo Site Is In a hurricane -prone region as defined In ASCE/SEI 7-16 Section 26.2
-- Oozed openings shall be protested against wind-borne debris as specified in 1
Section 26.123. 1 '
Data source i
i Y s ASCVSE17-16,Fig. 26.5-111 and rigs.. CC.2-1-CC.24
�tr • F r 51 t - —1 C r J
t
lfzpo5.�
nd
% sc nmor will _ t s IMF %
1109 US-1, VERO BEACH, FL 32960 (772)205-3244permitting@goldinsolar.com
Note: The Calculations are part of the Construction Documents and shall match in specifications, codes and regulations. Al
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GO OLAR
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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.
SNAPHRACK SERIES 100 RAOIUIG SYSTEM TYPICAL ROOF LAYOUT
NOTES:
- STANDARD LAG BOLT SPEC ASSUMES
5/16' LAG BOLTS WITH 25•
EMBEDMENT IN ROOFSTRUCTURAL
MEMBERSIRAFTERS
- TORQUE ALL&I HARDWARE TO THE
FOLLOWING:
- SILVER S.S. ID•.16 FT-LHS
- BLAOL S.S. 7.9 FP- BS
RAIL CAN MOUNT TO EITHER SIDE OF
POST (UPSLOPE V& DOWNSLOPE)
- FOR UNEVEN ROOF SURFACES, USE
UP TO TWO LEVELING SPACERS PER L
FOOT OR STANDOFF. SEE CRAYANG
'STANDARD RAIL LEVELING' FOR
DETAILS AND LIMITATIONS
'RAIL SPAN'
DISTANCEBETWEEN
6DOFATTACHNENT6
ROOFRAFTERS OR
STRUCTURAL MEMBERS
MODULE
'RAIL EN D OVERRAN G'
GNAPHRACK MODULE
MID CLAMPS
MODULE OVERHANG
(NOT TO OCCff030%
OR MANUFACTURER'S
RQOTMENDATIONS)
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Pi d�SiB � HTIm'A`,Dtll: aa: 120113
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ATTACHMENT DETAIL
BASE FOR PLANE 1-3 (COMPOSITE 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 andshall match in specifications, codes and regulations. A3a
GO`.L�DI�N;SOLAR
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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Theatud" span tablesindude consideration of the attachment device capacity, baud on UL2703load testing
performed bySmphirack. Tested loadvaluesare developedwilh 5116' 0188snmvswith an effective embedmenta12•
17T Into a Douglas Fasubstratewithamferercewithdrawal(uplifter pullout) load cop ary oIS32 lb, and a reference
shear (sldeor retest) lmdmpatlryolvif Its forreshUng sborr•Ic+m wind orseiuNt loads. Referencevaluesare the
ba wlm,belouanyadJustmentismdeperthe NDS. WtalWtbnslntoalta iesubsbateswwblchtnealternate
fasteners shall be Pemdned; provided LWI the fastener has testcdor codederlvedalbxable loadcapadties, and meets
one ofthe following two niterWA) The anowableloadwluesfor the alternate fastenersha0 meet aceacaed the
agarwblevaluesnmed above fie ft51IV OUgsauvsin Douglas FU;m8j the span length Identified inthe'sptn
tables'shallbemdumdamendingmthemoreres ktiveafthero0aWMtwoformulas:
Rail Span =TableSpan s Almrnate Reference MrIthdrawl Capacity
5321b
Or
Rail Span - Table Span. Alternate Reference Shea Capacity
270lb
These fmmulasshall mtbe used to increase the allowable span beyond the spans [sled In the span tables.
Allachment Devices:
llsespan Tables haw been grouped Into 6 separate setsolaluchment deslces called 'Eirewhich are presented below.
70 use th8 table, find theamadanentdwke tobeusedin theWtbebw, then mad anac sm detcrmbe which bin the
attachment hin. The spans may then bedelermined from themhle Wth Ihemnesponditsg Binnumbet Structural
deta[s for lhesyscem arrd attarbmentsmaybe found lnApplendk C. Noten Side load dlrcW n is parallel tonfier.
Attachment Dedm N
gin No.
Madmum Reactlon Loadsame:
Down
Up
Side
Standard Base Scam Clamp with L•Fool
Wide Base Seam Clamp with L•Foot
3
235
235
312
Universal7velbok
FLatTle Hook
2
394
lie
417
Hanger8oli Clamp
Flashed UFoal(92 Deg)
3
1469
309
251
Tile Replacement
4
1333
445
93
AR Purpose L•Foot (90 Deg)
Umbrella ComplOt
Corrugated Straddle Black with L Foot
Metal Roar face with bFoot
S
788
405
236
Metal Roof Base with 7in Standoff
5.1f21n Standoff on 4-Hole Base
Tin HD Standoff on &Hole Base
5.3/21n, 71n;or B•1/2'Sla2dL_ 1•Holc Dasc
a 112b Sundoffon 4dblc Oau
6
788
a45
163
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BISOSkrm CmoBo eauWvvd Suao 150. Finav4a,G95661
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