HomeMy WebLinkAboutOrion Span Chart_finalFINA
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May 2, 2014
Orion Solar Racking
2917 Vail Ave.
Commerce, California 90040
TEL: (310) 258-9900
FAX: (310) 258-9909
Attn.: Engineering Department,
Re: Engineering Certification for the Orion Solar Venus Racking Mounting System
PZSE, Inc.-Structural Engineers has reviewed Orion Solar’s Venus rail span chart, rail allowable
uplift wind force table and performed rail components capacity check including the L foot
bracket, end clamp, mid-clamp and stand off base. All information, data and analysis are based
on, and comply with the following:
1. Minimum Design Loads for Buildings and other Structures, ASCE/SEI 7-05
2. 2009 International Building Code, by International Code Council, Inc.
3. 2005 Aluminum Design Manual, by The Aluminum Association
This letter certifies that the structural calculations contained within Orion Solar’s Venus rail span chart,
rail allowable uplift wind force table and rail components capacity check are in compliance with the
above Codes.
If you have any questions on the above, do not hesitate to call.
Sincerely,
Paul Zacher, SE - President
1 of 4
1.0 1.2 1.4 1.0 1.2 1.4 1.0 1.2 1.4
85 8.5 8.5 8.5 8.0 7.5 7.0 6.5 6.0 5.5
90 8.5 8.5 8.0 7.5 7.0 6.5 6.5 5.5 5.5
100 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.5 4.5
110 8.0 7.5 7.0 6.5 6.0 5.5 5.5 4.5 4.5
120 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.5 4.0
130 7.0 6.5 6.5 5.5 5.0 4.5 4.5 4.0 3.5
140 6.5 6.5 5.5 5.0 4.5 4.0 4.0 3.5 3.5
150 6.5 5.5 5.5 4.5 4.0 4.0 3.5 3.5 3.0
85 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.5 4.5
90 8.0 7.5 7.5 6.5 6.0 5.5 5.5 5.0 4.5
100 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.5 4.0
110 7.0 6.5 6.5 5.5 5.0 4.5 4.5 4.0 3.5
120 6.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.5
130 6.5 5.5 5.5 4.5 4.0 4.0 3.5 3.5 3.0
140 5.5 5.5 5.0 4.0 4.0 3.5 3.5 3.0 3.0
150 5.5 5.0 4.5 4.0 3.5 3.0 3.0 3.0 2.5
85 8.0 7.5 7.0 6.5 6.0 5.5 5.5 4.5 4.5
90 8.0 7.0 6.5 6.0 5.5 5.5 5.0 4.5 4.0
100 7.0 6.5 6.5 5.5 5.0 4.5 4.5 4.0 3.5
110 6.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.5
120 6.5 5.5 5.5 4.5 4.0 3.5 3.5 3.5 3.0
130 5.5 5.5 5.0 4.0 3.5 3.5 3.5 3.0 3.0
140 5.5 5.0 4.5 4.0 3.5 3.0 3.0 3.0 2.5
150 5.0 4.5 4.0 3.5 3.0 3.0 3.0 2.5 2.5
a.
b.
c. Wind exposure category II per ASCE7‐05
Maximum mean roof height is 30 ft. For mean roof height greater than 30 ft and less than 45 ft, reduce the
d. span length by 0.5 ft.
e. Average parapet height is 0 ft
f. Roof pitch is between 7 degree and 27 degree
g.Ground snow load is 0 psf
h.Maximum solar panel weight is 60 lbs
i. Height of solar panel is between 2" and 10" to roof
The rail components including the L foot bracket, end clamp, mid‐clamp and stand off base are adequate to support the
loading conditions listed above.
kzt (Topographic Factor)
ZONE 1ZONE 3
Orion Standard Rail Span (ft)
B
C
D
kzt (Topographic Factor)kzt (Topographic Factor)WIND SPEED
(mph)
EXP
ZONE 2
The table above ONLY includes Orion rail capacity check. For roof attachment refer to the allowable uplift force table.
Roof deck capacity check is provided by others.
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FINA
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1.0 1.2 1.4 1.0 1.2 1.4 1.0 1.2 1.4
85 10.0 10.0 10.0 10.0 9.0 8.5 8.0 7.5 6.5
90 10.0 10.0 10.0 9.0 8.5 8.0 7.5 6.5 6.5
100 10.0 10.0 9.0 8.5 8.0 7.0 6.5 6.0 5.5
110 10.0 9.0 8.5 8.0 7.0 6.5 6.0 5.5 5.0
120 9.0 8.5 8.0 7.0 6.5 6.0 5.5 5.0 4.5
130 8.5 8.0 7.5 6.5 6.0 5.5 5.0 4.5 4.0
140 8.0 7.5 6.5 6.0 5.5 5.0 4.5 4.0 4.0
150 7.5 6.5 6.5 5.5 5.0 4.5 4.5 4.0 3.5
85 10.0 10.0 9.0 8.5 8.0 7.0 6.5 6.0 5.5
90 10.0 10.0 9.0 8.0 7.5 6.5 6.5 5.5 5.5
100 9.0 8.5 8.0 7.0 6.5 6.0 5.5 5.0 4.5
110 8.5 8.0 7.5 6.5 6.0 5.5 5.0 4.5 4.0
120 8.0 7.0 6.5 6.0 5.5 5.0 4.5 4.0 4.0
130 7.5 6.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5
140 6.5 6 5.5 5.0 4.5 4.0 4.0 3.5 3.5
150 6.5 5.5 5.5 4.5 4.0 4.0 3.5 3.5 3.0
85 10.0 9.0 8.5 8.0 7.0 6.5 6.0 5.5 5.0
90 10.0 9.0 8.5 7.5 6.5 6.0 5.5 5.0 4.5
100 8.5 8.0 7.5 6.5 6.0 5.5 5.0 4.5 4.0
110 8.0 7.5 6.5 6.0 5.5 5.0 4.5 4.0 4.0
120 7.5 6.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5
130 6.5 6.0 5.5 5.0 4.0 4.0 4.0 3.5 3.5
140 6.0 5.5 5.0 4.5 4.0 3.5 3.5 3.5 3.0
150 5.5 5.5 5.0 4.0 3.5 3.5 3.5 3.0 3.0
a.
b.
c. Wind exposure category II per ASCE7‐05
Maximum mean roof height is 30 ft. For mean roof height greater than 30 ft and less than 45 ft, reduce the
d. span length by 0.5 ft.
e. Average parapet height is 0 ft
f. Roof pitch is between 7 degree and 27 degree
g.Ground snow load is 0 psf
h.Maximum Solar panel weight is 60 lbs
i. Height of solar panel is between 2" and 10" to roof
The rail components including the L foot bracket, end clamp, mid‐clamp and stand off base are adequate to support the
loading conditions listed above.
The table above ONLY includes Orion rail capacity check. For roof attachment refer to the allowable uplift force table.
Roof deck capacity check is provided by others.
Orion Heavy Duty Rail Span (ft)
ZONE 3
B
C
D
kzt (Topographic Factor)kzt (Topographic Factor)kzt (Topographic Factor)
ZONE 1Z O N E 2
EXP WIND SPEED
(mph)
3 of 4
FINA
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F
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A
L
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Ra
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(f
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6
0
7
0
8
0
9
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1
0
0
1
2
0
1
3
0
1
4
0
1
5
0
1
7
0
1
9
0
2
0
0
2
4
0
2
5
0
3
2
0
4
4
0
6
0
0
2.
5
Std Rail
3
Std Rail HD Rail
3.5
Std Rail HD Rail
4
St
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HD Rail
4.5
St
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Ra
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HD Rail
5
St
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5.5
St
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Ra
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HD
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6
St
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6.5
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(f
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3
1
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1
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1
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1
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6
7
2
4
1
0
3
2
1
3
8
3
4.5
9
1
3
1
2
1
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5
7
9
5
1
0
6
9
5.5
7
5
3
9
9
5
6
6
2
4
8
8
7
6.5
6
0
4
8
1
8
7
4
9
7
7
2
7
7.5
4
5
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6
9
7
8
3
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2
6
5
5
8.5
3
8
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6
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3
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‐‐
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53
9
9.5
‐‐
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46
5
10
‐‐
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0
a.
W
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d
ex
p
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s
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ca
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pe
r
AS
C
E
7
‐05
b.
M
a
x
i
m
u
m
me
a
n
ro
o
f
he
i
g
h
t
is
30
ft
.
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r
me
a
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f
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i
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t
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a
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r
th
a
n
30
ft
an
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s
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a
n
45
ft
,
re
d
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th
e
sp
a
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n
g
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h
by
0.
5
ft
.
c.
A
v
e
r
a
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pa
r
a
p
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t
he
i
g
h
t
is
0 ft
d.
R
o
o
f
pi
t
c
h
is
be
t
w
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e
n
7 de
g
r
e
e
an
d
27
de
g
r
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r
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d
sn
o
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is
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f
f.
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x
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m
u
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so
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pa
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i
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t
is
60
lb
s
g.
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e
i
g
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t
of
so
l
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be
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2"
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(lb
)
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(p
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4
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4
Ta
b
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1
:
Ta
b
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2
: