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942 Main Street • Suite 300 • Hartford, CT 06103 (800) 552-4WRI [4974]
TECH FACTS
www.wirereinforcementinstitute.org
Excellence Set in Concrete
WIRE REINFORCEMENT INSTITUTE®
TF 306-R-10
Concrete pipe producers everywhere have long relied on welded wire reinforcement (WWR) in the manufacture of their products. Government agencies and private developers have come to rely on the structural integrity and performance of these products to provide a safe and healthy living environment. The producers of WWR continue to play an importantrole in the ever expanding proven track record of reinforced concrete pipe by supplying quality materials in the most efficient configurations.
This document is intended to provide sound recommen-dations for use in estimating the reinforcing steel in a concrete pipe. The information on the following pages was compiled using the published reinforcing designs of the American Society for Testing and Materials “Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe,” Designation C 76
WWR for the reinforced concrete pipe (RCP) industry is produced in accordance with ASTM A 1064, Standard Specification for Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete.The RCP industry uses a unique nomenclature when describ-ing WWR that is different from most other reinforced products. The wires providing the structural integrity to the pipe run circumferentially within the pipe wall. These wires are referred to as circumferential wires. The wires which run from spigot to bell, or tongue to groove, are called cross wires.
Although C 76 does not require any longitudinal rein-forcement in the pipe, cross wires are present primarily for three reasons. First, the cross wires provide assur-ance that the circumferential wires remain at the correct spacing during cage fabrication and pipe casting. Second, the cross wires provide support for the freshly cast pipe while it cures. Third, a minimum cross wire area equal to 40% of the circumferential wire area is required by ASTM specifications A 1064 to ensure strong welds.
The tables on the following pages list only the most com-mon styles used throughout the RCP industry today. They are also some of the most efficient. Here are the conventions that were used to develop these tables:
• The minimum cross wire size is W2.5.• Cross wire spacing in single cage pipe is 6 inches, and in double cage pipe is 8 inches.
• Maximum circumferential wire size is W12.• Wire size increments are by half W-number.• Only B-wall and C-wall, Class II through Class V
designs are shown.• Weights were calculated using a style width of 93”
(+1,+1) for 3” spaced styles, and a width of 94” (+1,+0) for 2” spaced styles for pipe with a laying length of 8’-0”.
• Expandable bell reinforcing cages were excluded.• Cage lengths were calculated to provide 1” clear
cover, a minimum 2” welded lap, then rounded to the next higher cross wire space.
• Elliptical cage configurations are not shown.• Elliptical areas are shown for reference only.
Wire sizes are based on nominal diameters and/orweights per LF. Tolerances per ASTM A 1064 apply. The user of this document is responsible for making any adjustments necessary to meet specific conditions, should they differ from these conventions. Wire size increments of 0.1 W-number and sizes larger than W12 are available upon request. C 76 provides the RCP pro-ducer with several provisions regarding reinforcing cage configuration. The tables on the following pages take advantage of all these provisions to arrive at the most efficient cage configuration possible with the conventions listed. One such provision is found in C 76 Table 4,footnote B, which states that C-wall 24-in. to 33-in.diameter pipe may utilize a single cage having anarea not less than the sum of the inner and outerspecified areas. This provision creates efficienciesover the standard two-cage design simply becausethere is one less cage to fabricate.
A similar provision is found in two places in C 76. Tables 2 and 3, footnote E permits the use of a single reinforcing cage for 36-in. diameter B-wall and C-wall pipe, but calls out specific areas to be met.
Another provision is found in all the tables underfootnote B which permits the use of quadrant mats.This may very well be the single most economicalconfiguration available in the C 76 specification.This provision is used primarily where steel areasabove 0.60 in.2 per linear foot are required. Whenapplied to both the inner and outer cages, steelsavings can range from 20% to 37%. Figures 1 and 2 illustrate the concept of quadrant mat reinforcing. Very
WELDED WIRE REINFORCEMENT FOR CIRCULAR CONCRETE PIPE
© Wire Reinforcement Institute, Inc. 2010
simply, this provision allows the producer to concentrate the placement of the steel to the regions or "quadrants" of the pipe wall where it is needed. When a concrete pipe is loaded, tension develops in the crown and invert on the inside face of the pipe wall, and at the springline on the outside face of the pipe wall. The quadrant mats are placed in these areas to resist the tensile forces that develop. Opposite these locations the pipe wall is in compression, which the concrete alone can resist. The typical quadrant mat configuration consists of a full cir-cular cage having an area of at least 25% of the specified area for that cage, with the remaining area provided by each of two 90° quadrant mats placed as shown in Figure 1. The combined areas of the full circular cage and either single quadrant mat must be equal to or greater than the area specified for that cage.
A more practical quadrant mat configuration is the use of a "quadrant cage" and a single quadrant mat (Figure 2). The quadrant cage is rolled 11/4 turns (450°) and overlapped by 90 to include the first "quadrant mat". Then a single 90° quadrant mat is rolled and placed opposite the 90° overlap. The quadrant cage and quad-rant mat are rolled from the same style which is at least 50% of the specified cage area. Where the overlap occurs and where the quadrant mat is placed, the total area is equal to or greater than the specified cage area. When this configuration is used, labor is minimized and a steel savings of up to 25% is realized. This quadrant cage (QC) and quadrant mat (QM) configuration is used throughout the following tables where specified areas exceed 0.60 in.2 per linear foot of pipe wall.
Probably the least understood provision in C76 is found under Permissible Variations Section 12.5.2 – Area of Reinforcement. It uses the alternate elliptical cage area listed in the table for a given pipe diameter and class to calculate the permissible variations of the inner and outer cages. It states that when inner and outer circular cages are used, the area of the inner cage must be at least 85% of the specified alternate elliptical cage area and the area of the outer cage must be at least 51% of the elliptical area, but the total area of the inner and outer cages must be at least 140% of the elliptical area. This allows for small adjustments in the inner and outer cage areas that can result in savings of nearly 10% (see page 10 – 66" Class III C-wall design). The designs cre-ated using Permissible Variations Section 12.5.2 are identified by a u in the following tables.
The format of the tables on the following pages has been revised from previous printings of this Tech Fact. The left third of each table lists the design requirements of ASTM C 76-97, including diameter, class, 0.01-inch crack and ultimate D-Loads, wall designation and thick-ness, and concrete strength. The center third lists the inner cage data, including minimum area required, wire
spacing, wire size, cage length, and cage weight per linear foot of pipe. The right third lists the corresponding outer cage data, and along the far right side of each table is the total cage weight per linear foot of pipe and the specified alternate elliptical cage area used in Section 12.5.2 calculations.
The purpose of this document is to provide guidance and suggestions for reinforcing configurations that meet the minimum reinforcing requirements of the ASTM C 76-97 Specification. Naturally there are many other con-figurations available to the concrete pipe producer for their use. These are simply the most common being used in today’s market.
Contact a WRI member producer for specific requests and conditions that are not addressed in this document. Styles and wire sizes other than those shown in the tables are available upon request. This Tech Fact was prepared under the direction of the Pipe Reinforcement Committee of the Wire Reinforcement Institute, Inc.
Publication of the data herein is not intended as a warranty on the part of the Wire Reinforcement Institute, Inc. or its member c o m p a n i e s , with respect to its suitability for any general or particular use, or of freedom from infringe-ment on any existing patent or patents. The user assumes all liability aris-ing from any such contin-gencies.
Note: In the following tables, where quadrant designs appear below an alternate design identified by a ◆, the quadrant design represents the alternate design.
Key QC - 450° Quadrant Cage QM - 90° Quadrant Mat FC - 360° Full Circular Cage
TF 306-R-10 • Page 2
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
3 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
re a
vaila
ble.
12"
IV2,
000
3,00
0B
2"4,
000
0.07
3 x
62.
0 x
2.5
4'-0
"1.
76-
--
--
1.76
-
C2
3/4"
4,00
00.
073
x 6
2.0
x 2.
54'
-0"
1.76
--
--
-1.
76-
12"
V3,
000
3,75
0B
2"6,
000
0.10
3 x
62.
5 x
2.5
4'-0
"2.
03-
--
--
2.03
-
C2
3/4"
6,00
00.
073
x 6
2.0
x 2.
54'
-0"
1.76
--
--
-1.
76-
15"
III1,
350
2,00
0B
2 1/
4"4,
000
0.07
3 x
62.
0 x
2.5
5'-0
"2.
20-
--
--
2.20
-
C3"
4,00
00.
073
x 6
2.0
x 2.
55'
-0"
2.20
--
--
-2.
20-
15"
IV2,
000
3,00
0B
2 1/
4"4,
000
0.10
3 x
62.
5 x
2.5
5'-0
"2.
54-
--
--
2.54
-
C3"
4,00
00.
073
x 6
2.0
x 2.
55'
-0"
2.20
--
--
-2.
20-
15"
V3,
000
3,75
0B
2 1/
4"6,
000
0.14
3 x
63.
5 x
2.5
5'-0
"3.
22-
--
--
3.22
-
C3"
6,00
00.
073
x 6
2.0
x 2.
55'
-0"
2.20
--
--
-2.
20-
18"
III1,
350
2,00
0B
2 1/
2"4,
000
0.07
3 x
62.
0 x
2.5
5'-6
"2.
42-
--
--
2.42
0.07
C3
1/4"
4,00
00.
073
x 6
2.0
x 2.
55'
-6"
2.42
--
--
-2.
420.
07
18"
IV2,
000
3,00
0B
2 1/
2"4,
000
0.14
3 x
63.
5 x
2.5
5'-6
"3.
54-
--
--
3.54
0.11
C3
1/4"
4,00
00.
073
x 6
2.0
x 2.
55'
-6"
2.42
--
--
-2.
420.
07
18"
V3,
000
3,75
0B
2 1/
2"6,
000
0.19
3 x
65.
0 x
3.0
5'-6
"4.
85-
--
--
4.85
0.16
C3
1/4"
6,00
00.
103
x 6
2.5
x 2.
55'
-6"
2.79
--
--
-2.
79-
AS
TM
C 7
6W
ELD
ED
WIR
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EIN
FO
RC
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CIR
CU
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INF
OR
CE
ME
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0.01
"-
-
DESI
GN R
EQUI
REME
NTS
FOR
REIN
FORC
ED C
ONCR
ETE
PIPE
INN
ER
CA
GE
lbs.
/ft.
/ft.
lbs.
/ft.
/ft.
Ult.
Alte
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Are
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eq
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Sp
aci
ng
Wir
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ize
ssq
.in./
ft.
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W o
r D
ft.-
in.
Ca
ge
Le
ng
thC
ag
eW
eig
ht
lbs.
/ft.
OU
TE
R C
AG
E
Are
aR
eq
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ire
Sp
aci
ng
Wir
eS
ize
ssq
.in./
ft.
in.
W o
r D
ft.-
in.
Ca
ge
Le
ng
thC
ag
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eig
ht
lbs.
/ft.
lbs.
/ft.
Tota
lC
ag
eW
eig
ht
sq.in
./ft
.
21"
III1,
350
2,00
0B
2 3/
4"4,
000
0.07
3 x
62.
0 x
2.5
6'-6
"2.
86-
--
--
2.86
0.07
C3
1/2"
4,00
00.
073
x 6
2.0
x 2.
56'
-6"
2.86
--
--
-2.
860.
07
21"
IV2,
000
3,00
0B
2 3/
4"4,
000
0.20
3 x
65.
0 x
3.0
6'-6
"5.
73-
--
--
5.73
0.17
C3
1/2"
4,00
00.
073
x 6
2.0
x 2.
56'
-6"
2.86
--
--
-2.
860.
07
21"
V3,
000
3,75
0B
2 3/
4"6,
000
0.24
2 x
64.
0 x
2.5
6'-6
"6.
40-
--
--
6.40
0.21
C3
1/2"
6,00
00.
103
x 6
2.5
x 2.
56'
-6"
3.30
--
--
-3.
30-
24"
III1,
350
2,00
0B
3"4,
000
0.07
3 x
62.
0 x
2.5
7'-6
"3.
30-
--
--
3.30
0.07
C3
3/4"
4,00
00.
073
x 6
2.0
x 2.
57'
-6"
3.30
--
--
-3.
300.
07
24"
IV2,
000
3,00
0B
3"4,
000
0.27
2 x
64.
5 x
2.5
7'-6
"8.
15-
--
--
8.15
0.23
C3
3/4"
4,00
00.
073
x 8
2.0
x 2.
57'
-4"
2.92
0.07
3 x
82.
0 x
2.5
8'-0
"3.
196.
110.
08
C3
3/4"
4,00
00.
143
x 6
3.5
x 2.
57'
-6"
4.83
--
--
-4.
83-
24"
V3,
000
3,75
0B
3"6,
000
0.30
2 x
65.
0 x
3.0
7'-6
"9.
16-
--
--
9.16
0.24
C3
3/4"
6,00
00.
123
x 8
3.0
x 2.
57'
-4"
3.92
0.07
3 x
82.
0 x
2.5
8'-0
"3.
197.
110.
13
27"
II1,
000
1,50
0B
3 1/
4"4,
000
0.13
2 x
62.
5 x
2.5
8'-0
"5.
43-
--
--
5.43
0.11
C4"
4,00
00.
073
x 6
2.0
x 2.
58'
-0"
3.52
--
--
-3.
520.
07
27"
III1,
350
2,00
0B
3 1/
4"4,
000
0.16
3 x
64.
0 x
2.5
8'-0
"5.
70-
--
--
5.70
0.14
C4"
4,00
00.
083
x 6
2.0
x 2.
58'
-0"
3.52
--
--
-3.
520.
07
AS
TM
C 7
6W
ELD
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WIR
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EIN
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INF
OR
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ME
NT
0.01
"-
-
DES
IGN
REQ
UIR
EMEN
TS F
OR
REI
NFO
RC
ED C
ON
CR
ETE
PIPE
INN
ER
CA
GE
lbs.
/ft.
/ft.
lbs.
/ft.
/ft.
Ult.
Alte
rna
teE
llip
tica
lA
rea
D-L
oa
dP
ipe
Cla
ssIn
tern
al
Dia
me
ter
in.
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Wa
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on
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thp
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Are
aR
eq
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Sp
aci
ng
Wir
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ize
ssq
.in./
ft.
in.
W o
r D
ft.-
in.
Ca
ge
Le
ng
thC
ag
eW
eig
ht
lbs.
/ft.
OU
TE
R C
AG
E
Are
aR
eq
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ire
Sp
aci
ng
Wir
eS
ize
ssq
.in./
ft.
in.
W o
r D
ft.-
in.
Ca
ge
Le
ng
thC
ag
eW
eig
ht
lbs.
/ft.
lbs.
/ft.
Tota
lC
ag
eW
eig
ht
sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
4
Wire
siz
e in
crem
ents
of
0.1
W-n
umbe
r an
d si
zes
larg
er t
han
W12
are
ava
ilabl
e.
27"
IV2,
000
3,00
0B
3 1/
4"4,
000
0.31
2 x
65.
5 x
3.0
8'-0
"10
.59
--
--
-10
.59
0.25
C4"
4,00
00.
083
x 8
2.0
x 2.
58'
-0"
3.19
0.07
3 x
82.
0 x
2.5
9'-4
"3.
726.
910.
09
C4"
4,00
00.
152
x 6
2.5
x 2.
58'
-0"
5.43
--
--
-5.
43-
3 x
64.
0 x
2.5
8'-0
"5.
70-
--
--
5.70
-
27"
V3,
000
3,75
0B
3 1/
4"6,
000
0.38
2 x
86.
5 x
3.0
8'-0
"11
.82
0.23
2 x
84.
0 x
2.5
8'-8
"8.
1619
.98
0.42
0.3
62
x 8
6.0
x 3.
08'
-0"
11.0
0 0
.24
2 x
84.
0 x
2.5
8'-8
"8.
1619
.16
C4"
6,00
00.
143
x 8
3.5
x 2.
58'
-0"
4.82
0.08
3 x
82.
0 x
2.5
9'-4
"3.
728.
540.
16
30"
II1,
000
1,50
0B
3 1/
2"4,
000
0.14
3 x
63.
5 x
2.5
9'-0
"5.
80-
--
--
5.80
0.12
C4
1/4"
4,00
00.
073
x 6
2.0
x 2.
59'
-0"
3.96
--
--
-3.
960.
07
30"
III1,
350
2,00
0B
3 1/
2"4,
000
0.18
3 x
64.
5 x
2.5
9'-0
"7.
02-
--
--
7.02
0.15
C4
1/4"
4,00
00.
103
x 6
2.5
x 2.
59'
-0"
4.57
--
--
-4.
570.
08
30"
IV2,
000
3,00
0B
3 1/
2"4,
000
0.35
2 x
66.
0 x
3.0
9'-0
"12
.83
--
--
-12
.83
0.28
C4
1/4"
4,00
00.
093
x 8
2.5
x 2.
58'
-8"
4.04
0.07
3 x
82.
0 x
2.5
10'-0
"3.
988.
020.
10
C4
1/4"
4,00
00.
163
x 6
4.0
x 2.
59'
-0"
6.41
--
--
-6.
41-
30"
V3,
000
3,75
0B
3 1/
2"6,
000
0.41
2 x
87.
0 x
3.0
8'-8
"13
.69
0.25
2 x
84.
5 x
2.5
9'-4
"9.
7423
.43
0.46
0.4
22
x 8
7.0
x 3.
08'
-8"
13.6
9 0
.24
2 x
84.
0 x
2.5
9'-4
"8.
7922
.48
-
C4
1/4"
6,00
00.
183
x 8
4.5
x 2.
58'
-8"
6.40
0.11
3 x
83.
0 x
2.5
10'-0
"5.
3411
.74
0.20
0.1
83
x 8
4.5
x 2.
58'
-8"
6.40
��
��
��
0.1
03
x 8
2.5
x 2.
510
'-0"
4.66
11.0
6-
33"
II1,
000
1,50
0B
3 3/
4"4,
000
0.15
2 x
62.
5 x
2.5
9'-6
"6.
44-
--
--
6.44
0.13
3 x
64.
0 x
2.5
9'-6
"6.
77-
--
--
6.77
AS
TM
C 7
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WIR
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0.01
"-
-
DES
IGN
REQ
UIR
EMEN
TS F
OR
REI
NFO
RC
ED C
ON
CR
ETE
PIPE
INN
ER
CA
GE
lbs.
/ft.
/ft.
lbs.
/ft.
/ft.
Ult.
Alte
rna
teE
llip
tica
lA
rea
D-L
oa
dP
ipe
Cla
ssIn
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Dia
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ht
lbs.
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Tota
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sq.in
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◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
5 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
re a
vaila
ble.
33"
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4 1/
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0.07
3 x
62.
0 x
2.5
9'-6
"4.
18-
--
--
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0.07
33"
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2,00
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3 3/
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3 x
65.
0 x
3.0
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"8.
38-
--
--
8.38
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1/2"
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123
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--
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2 x
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3 x
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5 x
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--
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3 x
82.
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3 x
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2.5
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2.5
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82.
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OU
TE
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ft.
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ht
lbs.
/ft.
lbs.
/ft.
Tota
lC
ag
eW
eig
ht
sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
6 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
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vaila
ble.
36"
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000
3,00
0B
4"4,
000
0.30
2 x
85.
0 x
3.0
10'-8
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.49
0.18
3 x
84.
5 x
2.5
11'-4
"8.
3620
.85
0.33
C4
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00.
143
x 8
3.5
x 2.
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'-8"
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0.08
3 x
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2.5
12'-0
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3,75
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0.50
2 x
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10'-8
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0.30
2 x
85.
0 x
3.0
11'-4
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33.6
50.
56
C4
3/4"
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00.
272
x 8
4.5
x 2.
510
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11.1
40.
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x 8
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512
'-0"
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42"
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2 x
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x 8
2.5
x 2.
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40.
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x 8
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14.2
5
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00.
103
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3 x
82.
0 x
2.5
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83.
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2.5
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C5
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0 x
3.0
12'-0
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2 x
83.
5 x
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13'-4
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27.7
00.
393
x 8
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x 3.
013
'-4"
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62
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0 0
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85.
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3.0
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3.0
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x 8
3.0
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60.
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0.60
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86.
0 x
3.0
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2.5
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0 x
2.5
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0.15
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TM
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ft.
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ht
lbs.
/ft.
lbs.
/ft.
Tota
lC
ag
eW
eig
ht
sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
7 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
re a
vaila
ble.
48"
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350
2,00
0B
5"4,
000
0.24
2 x
84.
0 x
2.5
13'-4
"12
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0.14
3 x
83.
5 x
2.5
15'-4
"9.
2321
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0.27
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00.
163
x 8
4.0
x 2.
513
'-4"
8.93
0.10
3 x
82.
5 x
2.5
15'-4
"7.
1516
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0.18
48"
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000
3,00
0B
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000
0.42
2 x
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0 x
3.0
13'-4
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0.25
2 x
84.
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2.5
15'-4
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37.0
70.
47 0
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2 x
87.
0 x
3.0
13'-4
"21
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42
x 8
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-
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4.5
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x 2.
515
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3.0
15'-4
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13'-4
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84.
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2.5
15'-4
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5 1/
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85.
5 x
3.0
15'-4
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83.
5 x
2.5
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30.
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3 x
85.
5 x
3.0
15'-4
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23
x 8
3.0
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2 x
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85.
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23
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3.5
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88.
0 x
3.5
15'-4
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x 8
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015
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2 x
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86.
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3.0
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lbs.
/ft.
lbs.
/ft.
Tota
lC
ag
eW
eig
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sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
8 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
re a
vaila
ble.
60"
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000
1,50
0B
6"4,
000
0.25
2 x
84.
5 x
2.5
16'-8
"17
.40
0.15
2 x
82.
5 x
2.5
18'-8
"11
.87
29.2
70.
283
x 8
4.0
x 2.
518
'-8"
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129
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0.2
42
x 8
4.0
x 2.
516
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15.7
0 0
.16
3 x
84.
0 x
2.5
18'-8
"12
.51
28.2
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x 8
5.5
x 3.
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90.
133
x 8
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x 2.
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426
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0.24
0.2
23
x 8
5.5
x 3.
016
'-8"
14.9
9 0
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3 x
83.
0 x
2.5
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"10
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25.3
2-
60"
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350
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000
0.34
2 x
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0 x
3.0
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"22
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85.
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"15
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40.
38 0
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5 x
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"21
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03
x 8
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236
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-
60"
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2 x
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5 x
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2 x
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5 x
2.5
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00.
283
x 8
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x 2.
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630
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42
x 8
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x 2.
516
'-8"
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0 0
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84.
0 x
2.5
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2 x
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0 x
3.0
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63.0
30.
66 0
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2 x
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5 x
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x 8
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-
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2 x
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0 x
3.0
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x 8
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3/4"
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412
x 8
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x 3.
016
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20.
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x 8
4.5
x 2.
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20.1
846
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22
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016
'-8"
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2 0
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84.
0 x
2.5
19'-4
"18
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3-
60"
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6 3/
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0.70
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2 x
87.
0 x
3.0
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30.
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811
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5.0
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22
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0 x
3.0
20'-8
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x 8
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536
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C7
1/4"
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252
x 8
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152
x 8
2.5
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3 x
84.
0 x
2.5
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Alte
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lbs.
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◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
9 W
ire s
ize
incr
emen
ts o
f 0.
1 W
-num
ber
and
size
s la
rger
tha
n W
12 a
re a
vaila
ble.
66"
III1,
350
2,00
0B
6 1/
2"4,
000
0.41
2 x
87.
0 x
3.0
18'-0
"28
.43
0.25
2 x
84.
5 x
2.5
20'-8
"21
.58
50.0
10.
46 0
.42
2 x
87.
0 x
3.0
18'-0
"28
.43
0.2
42
x 8
4.0
x 2.
520
'-8"
19.4
747
.90
-
C7
1/4"
4,00
00.
312
x 8
5.5
x 3.
018
'-0"
22.9
20.
193
x 8
5.0
x 3.
021
'-4"
17.7
340
.65
0.34
0.3
02
x 8
5.0
x 3.
018
'-0"
21.0
8 0
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3 x
84.
5 x
2.5
21'-4
"15
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36.8
3-
66"
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000
3,00
0B
6 1/
2"5,
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0.69
2 x
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5.0
18'-0
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2 x
87.
0 x
3.0
20'-8
"32
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79.4
00.
77 0
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2 x
811
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4.5
18'-0
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0.4
22
x 8
7.0
x 3.
020
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32.6
477
.11
-
QC
2 x
85.
5 x
3.0
22'-8
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QM
2 x
85.
5 x
3.0
4'-8
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94F
C2
x 8
7.0
x 3.
020
'-8"
32.6
467
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C7
1/4"
4,00
00.
512
x 8
8.5
x 3.
518
'-0"
34.3
90.
312
x 8
5.5
x 3.
021
'-4"
27.1
661
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0.57
0.5
12
x 8
8.5
x 3.
518
'-0"
34.3
9 0
.30
2 x
85.
0 x
3.0
21'-4
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.99
59.3
8-
QC
2 x
84.
5 x
2.5
22'-8
"23
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QM
2 x
84.
5 x
2.5
4'-8
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87F
C2
x 8
5.0
x 3.
021
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24.9
953
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66"
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4"6,
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0 x
3.0
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2 x
88.
5 x
3.5
21'-4
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97.6
20.
93 0
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2 x
87.
0 x
3.0
18'-0
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82
x 8
8.0
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895
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-
QC
2 x
87.
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3.0
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84.
0 x
2.5
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87.
0 x
3.0
4'-8
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M2
x 8
4.0
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55'
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8
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2 x
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3.0
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83.
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2.5
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x 8
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85.
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3.0
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2,00
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2 x
88.
5 x
3.5
20'-0
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2 x
85.
0 x
3.0
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88.
0 x
3.5
20'-0
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24'-8
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84.
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554
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Tota
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sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
10
Wire
siz
e in
crem
ents
of
0.1
W-n
umbe
r an
d si
zes
larg
er t
han
W12
are
ava
ilabl
e.
72"
IV2,
000
3,00
0B
7"5,
000
0.79
(2)
2 x
87.
0 x
3.0
20'-0
"63
.16
0.47
2 x
88.
0 x
3.5
22'-8
"40
.99
104.
150.
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0.7
8(2
) 2
x 8
6.5
x 3.
020
'-0"
59.0
8�
0.4
52
x 8
7.5
x 3.
022
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38.1
197
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-
QC
2 x
86.
5 x
3.0
24'-8
"36
.44
QM
2 x
86.
5 x
3.0
5'-4
"7.
88F
C2
x 8
7.5
x 3.
022
'-8"
38.1
182
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C7
3/4"
5,00
00.
612
x 8
10.5
x 4
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47.3
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372
x 8
6.5
x 3.
022
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33.4
880
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0.68
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2 x
810
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4.0
20'-0
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2 x
86.
0 x
3.0
22'-8
"31
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0-
QC
2 x
85.
0 x
3.0
24'-8
"28
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QM
2 x
85.
0 x
3.0
5'-4
"6.
25F
C2
x 8
6.0
x 3.
022
'-8"
31.1
766
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72"
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3,75
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7 3/
4"6,
000
0.99
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2 x
88.
5 x
3.5
20'-0
"76
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0.59
2 x
810
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4.0
22'-8
"50
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127.
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x 8
8.0
x 3.
520
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3.5
24'-8
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QC
2 x
85.
0 x
3.0
28'-0
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QM
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88.
0 x
3.5
5'-4
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x 8
5.0
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06'
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0 x
3.0
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84.
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2.5
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021
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3.5
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524
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85.
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3.0
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0.57
2 x
89.
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4.0
21'-4
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86.
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3.0
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72
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2 x
85.
0 x
3.0
26'-8
"31
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85.
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3.0
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C2
x 8
5.5
x 3.
024
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30.5
668
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x 8
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x 3.
021
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3.0
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ft.
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lbs.
/ft.
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/ft.
Tota
lC
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eW
eig
ht
sq.in
./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
11
Wire
siz
e in
crem
ents
of
0.1
W-n
umbe
r an
d si
zes
larg
er t
han
W12
are
ava
ilabl
e.
78"
IV2,
000
3,00
0C
8 1/
4"5,
000
0.71
2 x
812
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5.0
21'-4
"57
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0.43
2 x
87.
5 x
3.0
24'-8
"41
.47
99.0
70.
79 0
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2 x
811
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5.0
21'-4
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22
x 8
7.0
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024
'-8"
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-
QC
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86.
0 x
3.0
26'-8
"36
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2 x
86.
0 x
3.0
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C2
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023
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2 x
84.
0 x
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96.0
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2 x
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x 8
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193
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-
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2 x
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5 x
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026
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182
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x 3.
523
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x 8
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026
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2 x
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5 x
2.5
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2 x
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026
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2 x
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212
1.92
-
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2 x
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2 x
84.
0 x
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2 x
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M2
x 8
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2 x
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2 x
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84.
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2.5
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x 8
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x 3.
028
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eig
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./ft
.
◆ A
llow
able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
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12
Wire
siz
e in
crem
ents
of
0.1
W-n
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han
W12
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3.5
24'-8
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2 x
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3.5
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x 8
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374
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-
QC
2 x
84.
0 x
2.5
30'-8
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C2
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528
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365
.10
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0B
8 1/
2"5,
000
0.69
2 x
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24'-8
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2 x
87.
0 x
3.0
28'-0
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77 0
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2 x
811
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5.0
24'-8
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0.3
92
x 8
6.5
x 3.
028
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610
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-
QC
2 x
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0 x
3.0
30'-8
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2 x
86.
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3.0
6'-8
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C2
x 8
6.5
x 3.
028
'-0"
41.3
692
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592
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x 4
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'-8"
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x 8
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x 3.
028
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0.5
72
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024
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8 0
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2 x
86.
0 x
3.0
28'-8
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92.2
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QC
2 x
85.
0 x
3.0
30'-8
"35
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85.
0 x
3.0
6'-8
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6.0
x 3.
028
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0.57
2 x
89.
5 x
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26'-0
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3.0
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89.
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4.0
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093
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2 x
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0 x
3.0
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2.5
32'-8
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84.
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030
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QC
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84.
0 x
2.5
36'-8
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86.
0 x
3.0
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4.0
x 2.
57'
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95.5
4
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◆ A
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able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
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13
Wire
siz
e in
crem
ents
of
0.1
W-n
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han
W12
are
ava
ilabl
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350
2,00
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9 3/
4"5,
000
0.70
2 x
812
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26'-0
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2 x
87.
0 x
3.0
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117.
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QC
2 x
86.
0 x
3.0
32'-8
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QM
2 x
86.
0 x
3.0
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C2
x 8
7.0
x 3.
030
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47.3
810
1.47
102"
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1,50
0B
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2"5,
000
0.68
2 x
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.5 x
5.0
28'-0
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0.41
2 x
87.
0 x
3.0
31'-4
"49
.48
122.
23-
QC
2 x
86.
0 x
3.0
34'-8
"47
.68
QM
2 x
86.
0 x
3.0
7'-4
"10
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FC
2 x
87.
0 x
3.0
31'-4
"49
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107.
25
C10
1/4
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0.62
2 x
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4.5
28'-0
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2 x
86.
5 x
3.0
32'-0
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113.
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QC
2 x
85.
5 x
3.0
34'-8
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85.
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032
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2 x
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5 x
3.0
28'-0
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2 x
89.
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4.0
31'-4
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QC
2 x
87.
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3.0
34'-8
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2 x
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2.5
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3.0
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88.
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3.0
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84.
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2.5
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87.
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3.0
36'-0
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87.
0 x
3.0
34'-0
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./ft
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◆ A
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able
alte
rnat
e de
sign
per
AS
TM
C76
Sec
tion
12.5
.2.
TF 3
06-R
-10
• P
age
14
Wire
siz
e in
crem
ents
of
0.1
W-n
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han
W12
are
ava
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108"
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-
QC
2 x
89.
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4.0
36'-0
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QC
2 x
85.
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2 x
88.
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2 x
810
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4.0
34'-0
"76
.21
188.
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QC
2 x
88.
5 x
3.5
36'-0
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QC
2 x
85.
0 x
3.0
42'-0
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2 x
88.
5 x
3.5
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2 x
85.
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142.
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lbs.
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◆ A
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able
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per
AS
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C76
Sec
tion
12.5
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TF 3
06-R
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• P
age
15
Wire
siz
e in
crem
ents
of
0.1
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umbe
r an
d si
zes
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er t
han
W12
are
ava
ilabl
e.
N
ote:
AS
TM
C76
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was
use
d as
ref
eren
ce f
or t
he p
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atio
n.
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NA
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VE
RH
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GS
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r D
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lish
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ric
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umbe
r
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met
er2"
51 m
m(s
q. in
. x 1
00)
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13 m
m(in
.)(s
q. in
.)(lb
./ft.)
3"76
mm
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mm
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AN
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ER
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36E
nglis
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etric
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52"
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lish
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25
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ers
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527�
141"
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472
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595
EX
AM
PLE
:2
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8.5
X W
3.5
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(+
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etric
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vers
ion
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g ta
bles
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ve …
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19.5
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X 2
03 -
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55 X
MW
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388m
m (
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m R
OLL
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0
AP
PE
ND
IX B
WIR
E P
RO
PE
RT
IES
Are
aW
eigh
t
MW
32
MW
16M
W13
(sq.
mm
)
MW
29M
W26
MW
23M
W19
MW
45M
W42
MW
39M
W35
MW
58M
W55
MW
52M
W48
AP
PE
ND
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ME
TR
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S F
OR
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D W
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INF
OR
CE
ME
NT
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ric
CO
NV
ER
SIO
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AC
TO
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MW
77M
W74
MW
71M
W68
MW
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W61
CIR
CU
MFE
RE
NTI
AL
SP
AC
ING
TF
306
-R-1
0 •
Pag
e 16
