00 MATERIAL DETAILS 700 MATERIAL DETAILS


Materials shall conform to the stated requirements and/or the requirements of the
referenced specifications including modifications as noted.


Copies of all Supplemental Specifications referenced in this section are on file
with the City of Columbus Transportation Division.

710 - FENCE AND GUARDRAIL


710.01 Barbed Wire. ASTM A 121, Type Z, Class 3 galvanizing or ASTM A
585, Type I, -, with the following modifications:

1.
Modifications to ASTM A 121, Type Z, Class 3.

7.1 Barbed wire strand wires shall be No. 12 1/2, 13 1/2, or 15 1/2 steel
wire gage. Barbs shall be 4 point round steel wire spaced 5 inches (130
mm) center to center.



6.3.1 The weight of coating for various gages of wire composing the
strands and barbs shall be not less than 0.80 ounces per square foot (244
g/m2) of surface.

9.1 One sample, as per Section 9.1, shall be selected from each 50 spools
or fraction thereof.

9.2 Sufficient completed barbed wire shall be cut from the end of a spool
to provide a sample length of 5 feet (1.5 m).

11 Inspection shall be done at the project site. Random samples shall be
obtained from material delivered to the project site or at other locations
designated by the Laboratory.


2.
Modifications to ASTM A 585, Type I.




12.3 Does not apply.



14 Inspection shall be done at the project site. Random samples shall be
obtained from material delivered to the project site or at other locations
designated by the Laboratory.


710.02 Woven Steel Wire Fence Type 47. ASTM A 116, Type Z, Class 3
galvanizing, with the following modifications:


7.1 The fence fabric shall be design number 1047-26.9.

11 Inspection shall be done at the project site. Random samples shall be obtained
from material delivered to the project site or at other locations designated by the
Laboratory.

Galvanizing. In addition, all hardware and attachments shall be galvanized in
accordance with 711.02.


710.03 Chain-Link Fence. AASHTO M 181, with the following modifications:

3.1 Posts, gate frames, post branches and top rails shall be Type I or Type III
material. Type I shall also conform to the requirements of Table 710.03-1. Type
III shall also conform to the requirements of Table 710.03-2.

TABLE 710.03-1
STEEL POSTS, GATE FR AMES, POST BRACES, AND TOP RAILS


Usage
nominal
fence height
6 ft or less
Section
Thickness
Outside
Diameter or
Dimensions
(in)
Weight
Nominal
lb/ft
Tolerance
(%)
Minimum
Yield
Strength
(psi)
Grade 1 Pipe
2.375
3.65
-5
25,800
Grade 2 Pipe
2.375
3.12
-5
50,000
C-Section
2.250
×
1.700
2.73
-6
45,000
Line posts
H-Section
2.250
×
1.700
3.26
-5
45,000
Grade 1 Pipe
2.875
5.79
-5
25,800
Grade 2 Pipe
2.880
4.64
-5
50,000
Square
2.500
5.70
-3
40,000
End, corner pull
posts
Roll-form
3.500
×
3.500
5.14
-6
35,000










Gate Posts, for
nominal width of
gate (single or one
leaf of Double):





Grade 1 Pipe
2.880
5.79
-5
25,800
Grade 2 Pipe
2.880
4.64
-5
50,000
Square
2.500
5.70
-3
40,000
Up to 6 ft incl.
Roll-form
3.500
×
3.500
5.14
-6
35,000
Grade 1 Pipe
4.000
9.11
-5
25,800
Grade 2 Pipe
4.000
6.56
-5
50,000
Over 6 to 13 ft incl.
Square
3.000
9.35
-3
40,000
Over 13 to 18 feet
incl.
Grade 1 Pipe
6.630
18.97
-5
25,800
Over 18 feet
Round
8.625
24.70
-5
25,800
Grade 1 Pipe
1.900
2.72
-5
25,800
Grade 2 Pipe
1.900
2.28
-5
50,000
Gate frames
Square
2.000
2.66
-3
40,000
Grade 1 Pipe
1.660
2.27
-5
25,800
Grade 2 Pipe
1.660
1.84
-5
50,000
H-Section
1.500
×
1.310
2.25
-5
45,000
Roll-form
1.6250
×
1.250
1.35
-6
35,000
Top rails,
[1]
post
braces
Round tubing
1.660
1.38
-5
50,000
[1] When tension wire is specified, it shall be of 0.177 in diameter.

TABLE 710.03-1M
STEEL POSTS, GATE FR AMES, POST BRACES, AND TOP RAILS


Usage nominal
fence height 1.8 m
or less
Section
Thickness
Outside Diameter
or Dimensions
(mm)
Weight
Nominal
(kg/m)
Minimum
Tolerance
(%)
Yield
Strength
(MPa)
Grade 1 Pipe
60
5.4
-5
178
Grade 2 Pipe
60
4.6
-5
348
C-Section
57
×
43
4.1
-6
310
Line posts
H-Section
57
×
43
4.9
-5
310
Grade 1 Pipe
73
8.6
-5
178
Grade 2 Pipe
73.00
6.9
-5
345
Square
64.00
8.5
-3
276
End, corner pull
posts
Roll-form
89
×
89
7.6
-6
241
Gate Posts, for
nominal width of
gate (single or one
leaf of Double):


Grade 1 Pipe
73.00
8.6
-5
178
Grade 2 Pipe
73.00
6.9
-5
345
Square
64.00
8.5
-3
276
Up to 1.8 m incl
Roll-form
89
×
89
7.6
-6
241
Grade 1 Pipe
102.00
13.6
-5
178
Grade 2 Pipe
102.00
9.8
-5
345
Over 1.8 to 4 m incl.
Square
76.00
13.9
-3
276
Over 4 to 5.5 m incl. Grade 1 Pipe
168.00
28.2
-5
178
Over 5.5 m
Round
219
36.8
-5
178
Gate frames
Grade 1 Pipe
48
4.0
-5
178

Grade 2 Pipe
48
3.4
-5
345

Square
51
4.0
-3
276
Grade 1 Pipe
42
3.4
-5
175
Grade 2 Pipe
42
2.7
-5
345
H-Section
38
×
33
3.3
-5
310
Roll-form
41
×
32
2.0
-6
241
Top rails,
[1]

post
braces
Round tubing
42
2.1
-5
345
[1] When tension wire is specified, it shall be of 4.5 mm diameter.



Top rails shall be furnished in lengths not less than 18 feet (5.5 m).


The fabric shall be fastened to the posts using either aluminum alloy or
galvanized steel bands or wires. The wires shall be 0.148 inch (3.7 mm)
minimum diameter and the zinc coating on steel fasteners shall not be less than
0.8 ounces per square foot (244 g/m
2
).

Stretcher bars shall have a 3/16 x 3/4 inch (5x19 mm) cross section or equivalent
cross section with length equal to full height of fabric.


Truss rods shall be steel 3/8 inch (9.5 mm) diameter or equivalent cross section
and shall have suitable adjustment.
Post tops shall be ornamental caps of steel, malleable iron or cast iron. They shall
be provided with a hole suitable for through passage of the top rail. They shall fit
snugly to the post, have a means of attaching securely to the post and exclude
moisture from tubular posts.


Gates shall be swing type, complete with latches, stops, keepers, hinges, locks,
and fabric. They shall be covered with fabric matching the fence. Hinges shall be
of adequate strength to support the gate and shall not twist or turn under action of
the gate. Latches shall be of the plunger bar type and shall be full gate height
located in a manner that will engage the gate stop. Forked latches may be used
for single gates less than 10 feet (3 m) wide. Latches shall provide for locking.
Stops shall consist of a flush plate with anchor to be placed in concrete to engage
the plunger bar of the latch. Other approved types of stops may be used for single
gates less than 10 feet (3 m) wide. Keepers shall be substantial devices for
securing and supporting the free end of the gate in open position.

Top rail couplings shall be outside sleeve type at least 6 inches (150 mm) long. A
minimum of 20 percent of the coupling shall have and internal heavy spring to
take up expansion and contraction.

Gate frames shall be assembled by welding using properly designed, formed sheet
or sandcast fittings. Gates shall be covered with fabric matching the fence.

Hinges shall be the offset type. Latches, stops, and keepers shall be galvanized
malleable iron except plunger bars which may be galvanized tubular or bar steel
conforming to 6.2.


Top rails shall be furnished in lengths not less than 18 feet (5.5 m).


Stretcher bars shall be flat bars 3/4 x 1/4 inch (19 x 6 mm) section.


Rail couplings shall be self-centering of the outside type 6 inches (150 mm) long.

Tie wire shall be 0.148 inch (3.7 mm) minimum diameter and shall meet and
aluminum alloy.


Turnbuckles shall be wrought or cast.

Truss and brace rods shall be 3/8 inch (9.5 mm) outside diameter or equivalent
cross section.


Brace bonds shall be beveled edge bars 1 x 1/8 inch (25 x 3 mm) section.

Bolts shall have anodic coating at least 0.0002 inch (5
µ
m) in thickness, chromate
sealed.
11.1. The size of fabric shall conform to 0.148 inch (3.7 mm) nominal diameter
of coated wire, 2 inch (50 mm) mesh.

14.1. Table 3. Type I Zinc-Coated Steel Chain Link Fabric shall have Class D
weight of coating.


15.5. The vinyl covering shall be uniformly medium green color.

19.1. Inspection shall be done at the project site. Random samples shall be
obtained from material delivered to the project site or at other locations
designated by the Laboratory.

20.1. Certification. Three certified copies of the chemical and physical properties
of each of the aluminum components shall be furnished to the Engineer.


32.2. Does not apply.

32.3.3.2. The minimum weight of interior coating shall be increased to an average
of 0.9 ounces per square foot (275 g/m
2
) and not less than 0.8 ounces per square
foot (244 g/m
2
) on an individual specimen.

Table 710.03-2
Diameters Of Plain End,
Schedule 40 Aluminum Alloy Pipe


The weights and dimensions shall be as specified in ANSI H 35.2.
















Nominal Pipe

Material




Size in (mm)


Brace rails and top rails..1 1/4 (32)

Gate frames and rail couplings......................................................................