PorterSIPs
ALLOWABLE HEADER
LOADS
FOR TYPE A and TYPE C SANDWICH PANELS
|
Panel A is made of two equal layers
of 7/16" APA rated (24/16) OSB.
Panel C is made of a layer of 7/16"
OSB APA rated (24/16) and a layer of 19/32" plywood.
Each skin is rated
(24/16). Each type has a core of 0.95 pcf minimum density EPS foam
adhered to the sheathing with glue and set under pressure.
|
| |
SANDWICH PANEL DIMENSIONS |
|
Skin Thickness
Core Thickness
Panel Depth |
7/16"
3 5/8"
4 1/2" |
7/16"
5 5/8"
6 1/2" |
7/16"
7 3/8"
8 1/4" |
7/16"
9 3/8"
10 1/4" |
7/16"
11 3/8"
12 1/4" |
| Panel span between supports |
DEFL. LIMIT |
ALLOWABLE HEADER LOAD FOR
PANELS WITH SINGLE TOP & BOTTOM PLATES
(Load in plf and Moment in ft-lbs.) |
|
4 ft |
L/240
L/360
Mmax |
332
190
1700 |
332
190
1700 |
332
190
1700 |
332
190
1700 |
408
235
2594 |
|
6 ft |
L/240
L/360
Mmax |
148
85
1700 |
148
85
1700 |
148
85
1700 |
148
85
1700 |
181
104
2594 |
|
8 ft |
L/240
L/360
Mmax |
83
48
1700 |
83
48
1700 |
83
48
1700 |
83
48
1700 |
102
59
2594 |
|
10 ft |
L/240
L/360
Mmax |
53
30
1700 |
53
30
1700 |
53
30
1700 |
53
30
1700 |
65
38
2594 |
|
12 ft |
L/240
L/360
Mmax |
70
50
2679 |
70
50
2679 |
70
50
2679 |
70
50
2679 |
78
58
2891 |
|
Notes:
1. Values shown are allowable loads for the shown spans (DL + LL).
2. Table reflects two deflection criteria, the L / 360 values should be
used if the
header will be support for floor loadings.
3. These headers must have a dimensional lumber single plate at top and
bottom
and along both end edges.
4. All values shown are for normal duration loads. No increases shall be
allowed.
5. All values listed are for single spans supported at each end.
6. Since the bottom plate will be used for transfer of the transverse
loadings the
following loads cannot be exceeded or a double plate will be required:
4' = 222.8 plf 6' = 99.02 plf 8' = 55.70 plf 10' = 35.65 plf 12' = 24.76
plf
|
Table H-1
|
Header Loads on Sandwich Panels
|
Updated
|
11/30/99
|
PorterSIPs
ALLOWABLE HEADER LOADS
FOR TYPE A and TYPE C SANDWICH PANELS
|
Panel A is made of two equal layers
of 7/16" APA rated (24/16) OSB.
Panel C is made of a layer of 7/16"
OSB APA rated (24/16) and a layer of 19/32" plywood.
Each skin is rated
(24/16). Each type has a core of 0.95 pcf minimum density EPS foam
adhered to the sheathing with glue and set under pressure.
|
| |
| |
SANDWICH PANEL DIMENSIONS |
|
Skin Thickness
Core Thickness
Panel Depth |
7/16"
3 5/8"
4 1/2" |
7/16"
5 5/8"
6 1/2" |
7/16"
7 3/8"
8 1/4" |
7/16"
9 3/8"
10 1/4" |
7/16"
11 3/8"
12 1/4" |
| Panel span between supports |
DEFL. LIMIT |
ALLOWABLE HEADER LOAD FOR
PANELS WITH DOUBLE TOP & BOTTOM PLATES
(Load in plf and Moment in ft-lbs.) |
|
4 ft |
L/240
L/360
Mmax |
466
297
2482 |
466
297
2482 |
446
297
2482 |
446
297
2482 |
536
366
4465 |
|
6 ft |
L/240
L/360
Mmax |
207
132
2482 |
207
132
2482 |
207
132
2482 |
207
132
2482 |
238
163
4465 |
|
8 ft |
L/240
L/360
Mmax |
117
74
2482 |
117
74
2482 |
117
74
2482 |
117
74
2482 |
134
92
4465 |
|
10 ft |
L/240
L/360
Mmax |
75
48
2482 |
75
48
2482 |
75
48
2482 |
75
48
2482 |
86
59
4465 |
|
12 ft |
L/240
L/360
Mmax |
95
71
3884 |
95
71
3884 |
95
71
3884 |
95
71
3884 |
106
83
4818 |
|
Notes:
1. Values shown are allowable loads for the shown spans (DL + LL).
2. Table reflects two deflection criteria, the L / 360 values should be
used if the
header will be support for floor loadings.
3. These headers must have a dimensional lumber double plate at top and
bottom and along both end edges.
4. All values shown are for normal duration loads. No increases shall be
allowed.
5. All values listed are for single spans supported at each end.
6. Since the bottom plates will be used for transfer of the transverse
loadings the
following loads cannot be exceeded on the bottom plates:
10' = 71.30 plf 12' = 49.52 plf
|
Table H-2
|
Header Loads on Sandwich Panels
|
Updated
|
11/30/99
|
