HomeMy WebLinkAboutRISER PAN CERTIFICATIONJoel Falardeau
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email
ASI Builc
Products
3" Riser Pan Certification
Figure 1: Aluminum pan test stand with full load applied.
Abstract:
This report investigates the structural integrity of the 3"x12"x0.32" alumintun pan.
Rational analysis and full scale material testing were used in determining the allowable
clear span for hurricane wind loads and point loads according to the Florida Building code,
6th Edition, and ASCE 7-10. Five panels were assembled with both ends simply supported
with the load concentrated mid -span, as shown in Figure 1. Three-point bending is
achieved with this configuration; plain strain remains plain. Loads were applied in two
steps with vertical displacement values recorded. The fifth pan on the right tended to show
higher displacements than the left and middle locations. This higher displacement is due
to the asymmetry of the pan coupled with this outside edge not being supported. The
measurements on the right side are neglected for this reason. The displacements would be
similar to the left side if stitch screws were installed. This is taken into consideration when
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Joel Falardeau
FL P.E. #70667
Evolution Engineering, 1
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 En
averaging the displa(
B, the allowable clea
Testing:
Figure 2 show the te;
Figure
) mph with exposure
?plied.
Testing Material:
I
Figure 3 shows an aluminum 3" riseri(standing seam), 0.032 inches thick industry standard
5 rib roof panel.
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l
Joel Falardeau
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email loelfalardeau@gmail.com
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3"'RISER (STANDING SEAM) INDUSTRY STANDARD 5 RIB ROOF PANEL
Figure 3: Detailed view of 3" riser aluminum pan.
Clear Span:
Figure 4 shows the clear span is 12 ft.
1
Figure 4: Aluminum pan test stand with full load applied.
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Joel Falardeau
FL P.E. #70667r0�
Evolution Engineering, LLC
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37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email ioelfalardeau@�mail.com
Boundary Conditions: I
Figure 5 shows the ends are simply supported using three #10 screws per pan. Stitch screws
were applied 24 inches on center for the! outer panels on both the left and right sides. This
measure is used for wind uplift and gra4ity loads.
Figure 5: Movement within the
stand is prevented by two 211x2l'A.50" patio
beam.
The test stand is kept rigid by a 2"x2"x0.50" patio beam fixed on both sides of the
specimen. The patio beams are spaced away from the pans to avoid conflicts.
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i
Joel Falardeau
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email
ioelfalardeau@gmail.com
Figures 5 & 6 shows both ends of the�test stand are simply supported.
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Joel Falardeau pl"���j�
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FL P.E. #70667 i
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email loelfalardeau@gmail.com
Loads:
Loading was applied in two steps; first 751b then 170 lb, see concrete blocks, Figure 7.
Vertical Displacement Results:
Figure 7 shows that the displacement on the right pan is considerably higher. This is due
to the asymmetry of the pan with the edge not being supported coupled with edge effects,
as shown in Figure 3.
Results
Table 1: Vertical Displacement of 0.030" pans for two loads.
i
Load (lb)
Ix (in^4)
Span
(ft)
Left Side
Deflection
(in)
Mid Deflection
(in)
Right Side
Deflection
(in)
Ave. Deflection (in)
Ave. Ix (in)^4
75
12
0.06
0.10
044
0.08
Ix
1.53
0.93
-
1.23
170
12
0.24
0.30
9 —1
0.27
Ix
0.88
0.71
-
0.80
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Joel Falardeau
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email
I" Pan with 12 ft s
Load
Ix Required
Ave. Ix Required
Test Span
Allowable Span
(lb)
(in^4)
j (in^4)
(ft)
(ft)
75
1.23
1.02
12
12.0
170
0.80
12.0
Wind
Speed/Exposure
Pan' Ix (in^4)
Allow Span
(ft)
Safety
Factor to
Yield
130/13
I
I1.02
i
i
12.00
2.0
130/C
9.50
2.0
140/13
10.25
2.0
140/C
8.75
2.0
140/1)
8.00
2.1
150/13
10.00
2.0
150/C
8.25
2.0
160/13
9.00
2.0
160/C
7.75
2.0
Table 4: Calculated allowable spans enclosed
0.030"
IX
Wind
Speed/Exposure
Pan Ix (in^4)
Allow Span
(ft)
Safety
Factor
130/13
1.02
12.00
2.0
130/C
9.31
2.0
140/13
10.10
2.0
140/C
8.40
2.0
140/1)
7.52
2.0
150/B
7.90
2.1
150/C
7.84
2.0
160/13
7.55
2.0
160/C
7.36
2.0
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i
Joel Falardeau i
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email ioelfalardeau@gmai
Tables 3 & 4 show the allowable spans
value determined from the material testi
the 0.030" pan calculated based on the IX
for open structures for the 0.02�
Wind
Speed/Exposure
Pan Ix (in^4)
Allow Span
(ft)
Safety
Factor to
Yield
130/13
0.73
I
10.20
2.0
130/C
8.30
2.0
140/13
8.90
2.0
140/C
7.50
2.0
140/D
7.00
2.0
150/B
8.65
2.0
150/C
7.20
2.0
160/I3
7.85
2.0
160/C
6.60
2.0
Wind
Speed/Exposure
Pan Ix (in^4)
Allow Span
(ft)
Safety
Factor
130/13
j
0.73
10.20
2.0
130/C
8.13
2.0
140/13
8.90
2.0
140/C
7.20
2.0
140/D
6.58
2.0
150/13
6.83
2.0
150/C
6.64
2.0
160/I3
6.46
2.0
160/C
6.27
2.0
i
Tables 5 & 6 show the allowable spans for the 0.024" pan
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Joel Falardeau
VOIUI�
FL P.E. #70667
Evolution Engineering, LLC
37841 Hart Circle
Zephyrhills, FL 33542
Cell (765)714-9022 Email loelfalardeau@gmail.com
Conclusion:
Three-point bending is achieved with the II configuration shown in Figure 1; plain strain
remains plain. The material testing produced some anomalous results on the right side
due to asymmetry of the pan coupled with edge effects. Engineering judgment was used
in interpreting these results. The structural integrity of the pan has been determined by
using material testing and rational analysis.
The results were used to determine the pL stiffness Ix value. This value was used in
calculating the allowable spans for various wind speeds and exposures shown in Tables 3
thru 6.
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Digitally signed
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F•.
b ERIK G
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No 77605 `
,STUART
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%9STATE OF ;•ga
Date:
2017.10.26
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10:44:59-04'00'
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