-0
S
SR
EW
N
OSHPD Pre-Approved System
Multi-Directional Bracing For Electrical Conduit,
Cable Tray And Mechanical Piping Systems
SYSTEMS THAT MAKE SENSE
2
SEISMIC RESTRAINTS
INTRODUCTION
INTRODUCTION
What is Seismic Bracing?
Seismic forces are exerted on a building and its contents during an earthquake. These forces act
horizontally upon the structure itself, as well as the piping, cable trays, ductwork, and other building
systems within. Typical supports for piping, trays, and other equipment are designed for the gravity,
or vertical, loads but do not take into account the horizontal loading caused by earthquakes. Seismic
restraints (i.e. braces) resist the horizontal forces and keep the systems in place and secure. The main
purpose of seismic bracing is safety- to minimize the loss of life due to an earthquake.
Seismic Bracing Requirements
The rules and requirements for the seismic restraints are published in the model building codes: The
Uniform Building Code (International Conference of Building Officials), National Building Code
(Building Officials and Code Administrators) and the Standard Building Code (Southern Building Code
Congress International). Each code is similar in nature, and has a chapter on structural forces which
defines the level of seismic force must be used in the design of seismic restraints.
The amount of seismic force (as determined by the building code) is given as a percent of the
components’ weight, or g-force. If the horizontal force is determined to be 50 percent of the piping
weight, for example, the seismic force is .5g.
The seismic "g-value" can vary greatly depending on the nature of the project. Critical buildings in a
high seismic zone have larger g-value requirements than warehouses in zone 1.
Factors that govern the seismic g-values used for design:
• Seismic Zone
• Soil Type
• Building Type
• Distance from known faults
• Elevation within building
• Anchorage Type
• System being braced
The design professional should use these factors and the applicable building code requirements to
determine the proper g-values to be used for the project.
While this manual has been developed under the requirements of the 2001 California Building Code,
this manual may also be used under other building codes as the California Building Code requires more
stringent seismic design criteria.
This brochure contains seismic bracing details that can be used for seismic bracing projects up
to 1.0g (ASD) or 1.4g. The brace spacing charts, required details, and rod loads must be determined
for the specific g-value for the project and shall be submitted to the engineer of record prior to
construction. The determination of the seismic force level shall also be submitted to the engineer of
record and to OSHPD for hospital projects in the state of California prior to construction. However,
the seismic force level need not be submitted to the engineer of record or OSHPD if included in the
original construction documents. This brochure contains charts for a variety of g values, however
custom charts can be created to reflect different g-values as required for the project. Contact B-Line
Engineering at 618-654-2184 with your requirements.
A copy of the complete Seismic Restraints Manual shall be on the jobsite for the duration of the
project.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
i
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
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Page 1
TABLE OF CONTENTS
General Information & Notes
................................
.......
12 - 16
....................................
17 - 20
........................................................
21 - 22
Single Pipe/Conduit Bracing Selection
Trapeze Bracing Selection
Trapeze Members
1 - 11
Structural Attachment Selection ................................. 23
Concrete .......................................................................... 24 - 33
Wood ................................................................................. 34 - 37
Steel .............................................................................................. 38
Hanger Rod Attachments &
Approved Components ....................................................... 39
Concrete .......................................................................... 40 - 46
Wood ............................................................................................ 47
Steel ................................................................................... 48 - 56
Approved Components
Rod Stiffeners ................................................................ 57 - 58
Adjustable Hinge .......................................................... 59 - 60
Hardware ......................................................................... 61 - 62
Pipe Hangers/Clamps
..............................................
Anchoring Components
..........................................
63 - 71
72 - 78
Metric Conversion Charts .................................. 79
Seismic Map ....................................................... 80
Appendix 1
Additional Support Spacing Charts For
Single Pipe/Conduit Applications (.15g, .30g,
.45g, .50g, .75g and 1.00g) ................... 82 - 106
Appendix 2
Additional Support Spacing Charts For
Trapeze Applications (.15g, .30g, .45g, .50g,
.75g and 1.00g) .................................. 108 - 145
Appendix 3
Proof Test Instructions For Concrete
Anchors (IR26-6) ........................................... 146
Appendix 4
Calculating Your Seismic Force Level .... 147 - 155
Appendix 5 (Beyond the scope of OSHPD)
Additional Engineering Approvals ................... 156
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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GENERAL INFORMATION
B-LINE SEISMIC RESTRAINT SYSTEMS are designed to resist seismic loading while minimizing
installation time and providing superior performance. On the following pages, several methods of seismic
bracing are illustrated. The choice of brace design should be governed by the system requirements and location
of supports.
Actual applications may vary and are not strictly limited to the combinations of fittings and supports shown.
Any changes to the depicted designs should be in accordance with standard engineering practices and be
approved by OSHPD (California Office of Statewide Health Planning & Development) if necessary.
For additional information on hangers, channels, fittings, and hardware shown, see the latest B-Line Strut
Systems Catalog or Pipe Hangers and Supports Catalog.
Seismic restraints are designed to resist the horizontal seismic force in two primary directions: Transverse
(perpendicular) and Longitudinal (parallel) to the run. The braces are attached to the building with a structure
attachment (for concrete, steel, wood, etc.) of various anchor sizes. Typically, the stronger the structure
attachment, the greater the brace spacing allowed.
The following steps detail how to use the brochure:
Step 1: Select the bracing details for single pipe hangers or trapeze supports.
Step 2: Obtain required force level (%g) from applicable code for local jurisdiction or from the structural
engineer of record.
Example: 2001 California Building Code
As defined in the 2001 California Building Code, Chapter 16A, Section 1632A, the seismic horizontal
force, Fp, may be calculated using the following formula:
Fp =
h
apCaIp
(1 + 3 • x )Wp
Rp
hr
Except that: Fp shall not be less than 0.7 Ca Ip Wp and need not be more than 4 Ca Ip Wp.
Where:
Fp = Seismic Force Level
ap = Amplification Factor (Table 16A-O)
Rp = Component Response Modification Factor (Table 16A-O)
= 3.0 for electrical, mechanical and plumbing equipment and associated
conduit, ductwork and piping utilizing deeply embedded anchors. (Table 16A-O)
= 1.5 for installations using concrete anchors with an embedment-to-diameter
ratio less than 8.
i.e. a 1/2" diameter concrete anchor with an embedment of less than 4" inches.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
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Structural Engineer
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GENERAL INFORMATION
Ip = Importance Factor (Table 16A-K)
= 1.5 for Essential facilities such as Hospitals, Fire Stations, Police Stations,
Aviation Control Towers, etc. consult Table 16A-K in CBC for a detailed listing.
= 1.0 for most other occupancies
Ca = Seismic Coefficient. This is a cumulation of several factors:
Zone, Soil Properties, and distance from known fault.
(Table 16A-I, Table 16A-J, Table 16A-Q, Table 16A-S, and Table 16A-U)
hx = Element or component attachment elevation with respect to grade.
Note: hx shall not be taken less than 0.0
hr = Structure Roof Elevation with respect to grade.
Special Note: This manual is based on allowable stress design (ASD), where as the seismic force level
(%g or Fp) for non-structural components provided in building codes are based on strength design. For
use in this manual, the seismic force level (Fp) from the building code are converted to allowable stress
design by dividing the result by 1.4.
Example: If the building code yields, (Fp) = 1.4g, this value is converted to allowable stress design (ASD)
as used in this catalog as follows: Fp=1.4g/1.4=1.0 g
Strength Design to Allowable Stress Design Conversions
.21g from building code
=
.15g (ASD)
.42g from building code
=
.30g (ASD)
.63g from building code
=
.45g (ASD)
.70g from building code
=
.50g (ASD)
1.05g from building code
=
.75g (ASD)
1.40g from building code
=
1.00g (ASD)
Example One, Deeply Embedded Anchors:
Cable tray system is suspended on the 1st floor of a 40-foot tall, 2-story surgical center in California.
The cable tray is actually suspended from the bottom of the 2nd floor, which has an elevation of 20 feet
above grade. Location of the surgical center is in seismic zone 4 with a rock soil profile.
Fp =
apCaIp
h
(1 + 3 • x )Wp
Rp
hr
ap = 1.0 from Table 16A-O
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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GENERAL INFORMATION
Ca = .40Na from Table 16A-Q, which is combination of Zone and Soil profile
Zone 4 = .40, from Table 16A-I
Rock Soil Profile = SB, from Table 16A-J
Seismic Source Type = B, for faults other than Type A & C (Table 16A-U)
Near Source Factor (Na) = 1.0, for 5 km from known seismic source (Table 16A-S)
Ip = 1.5 from Table 16A-K, Occupancies having surgery and emergency treatment areas.
Rp = 3.0 from Table 16A-O for deep embedded anchors
hx = 20 feet
hr = 40 feet
Fp =
(1.0)(0.40(1.0))(1.5)
20
(1 + 3 •
)Wp = 0.50Wp = 0.50g
3.0
40
Check if value falls within limits:
Fp shall not be taken less than, 0.7CaIpWp = 0.7(.40)(1.5)Wp = .42g
Fp shall not be greater than, 4.0CaIpWp = 4.0(.40)(1.5)Wp = 2.4g
2.4g > .5 > 0.42g Therefore allowing the use of 0.50g
To convert this Fp from a strength design to an Allowable Stress Design (ASD) used in this catalog
divide by 1.4.
0.50g
Fp =
= 0.36g (ASD)
1.4
0.36g is the Allowable Stress Design Seismic Load Factor determined from 2001 California
Building Code.
Special Note: A table for .36g (ASD) is not available in this catalog. When seismic force levels (%g or
Fp) falls between catalog table values (i.e.: .15g, .3g, .45g, etc.) the seismic force level shall be rounded
up to the next highest cataloged force level.
Example: If Fp = .36g (ASD), then use catalog tables for .45g (ASD).
Example Two, Shallow Embedded Anchors:
Special Note: Installations using concrete anchors installed with an embedment length-to-diameter
ratio of less than 8, also referred to as shallow embedment anchors, have an adjusted Component
Response Factor. The adjusted factor Rp = 1.5.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
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Structural Engineer
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GENERAL INFORMATION
Cable tray system is suspended on the 1st floor of a 40-foot tall, 2-story surgical center in California.
The cable tray is actually suspended from the 2nd floor, which has an elevation of 20 feet above
grade. Location of the surgical center is in seismic zone 4 with a rock soil profile, shallow
embedment anchors are used for brace locations.
Fp =
h
apCaIp
(1 + 3 • x )Wp
Rp
hr
ap = 1.0 from Table 16A-O
Ca = .40Na from Table 16A-Q, which is combination of Zone and Soil profile
Zone 4 = .40 from Table 16A-I
Rock Soil Profile = SB from Table 16A-J
Seismic Source Type = B for faults other than Type A & C (Table 16A-U)
Near Source Factor (Na) = 1.0 for 5 km from known seismic source (Table 16A-S)
Ip = 1.5 from Table 16A-K, Occupancies having surgery and emergency treatment areas.
Rp = 1.5 adjusted for Shallow Embedment Anchors
hx = 20 feet
hr = 40 feet
(1.0)(0.40(1.0))(1.5)
20
Fp =
(1 + 3 •
)Wp = 1.0Wp = 1.0g
1.5
40
Check if value falls within limits:
Fp shall not be taken less than, 0.7CaIpWp = 0.7(.40)(1.5)Wp = .42g
Fp shall not be greater than, 4.0CaIpWp = 4.0(.40)(1.5)Wp = 2.4g
2.4g > 1.0g > 0.42g Therefore allowing the use of 1.0g
To convert this Fp from a strength design to an Allowable Stress Design (ASD) used in this catalog
divide by 1.4.
1.0g
Fp =
= 0.71g (ASD)
1.4
0.71g is the Allowable Stress Design Seismic Load Factor determined from 2001 California
Building Code for shallow embedment anchors.
Special Note: A table for .71g (ASD) is not available in this catalog. When seismic force levels (%g or
Fp) falls between catalog table values (i.e.: .15g, .3g, .45g, etc.) the seismic force level shall be rounded
up to the next highest cataloged force level.
Example: If Fp = .71g (ASD), then use catalog tables for .75g (ASD).
Note: For other Code examples see Appendix 4
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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GENERAL INFORMATION
Step 3: With required force level (%g), obtain the transverse and longitudinal brace spacing from
Appendix 1 (single pipe) or Appendix 2 (trapeze hanger). The following notes shall be followed:
a) Break the length of pipe into separate straight runs, which are considered to be a single straight
section between any bends in the pipe except where the bend is at an offset of less than the
maximum offset length as defined below.
Table 1 - Steel Pipe or Conduit
Nominal
Pipe
Size
5
6
8
10
Table 2 - Copper Tubing
Max. Offset Length (ft)
0.15g 0.3g
4
6
10
10
4
6
10
10
Nominal
Tubing
Size
0.5g 0.75g 1.0g
4
6
10
10
4
6
9
10
3
5
7
9
12
Max. Offset Length (ft)
0.15g 0.3g
4
4
0.5g 0.75g 1.0g
4
4
4
Note: The tabulated values represent pipe and tubing with moment and shear transfering joints.
Therefore, for use of these tables pipes shall have welded, brazed, or UL Listed grooved joints. Pipe and
tube sizes not listed above or joined as reqiuired shall be limited to a maximum offset length of 2 ft.
Maximum Offset Length (ft.)
b) Brace each straight run in the transverse direction at both ends. Where several short runs occur,
see note e) on the following page.
Straight Run
Transverse bracing at both ends of the pipe run
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
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Sheet Number:
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Structural Engineer
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GENERAL INFORMATION
c) Check the required spacing for transverse bracing (Appendixes 1 & 2) and compare it to the
length of the straight run. If the length of the straight run is greater than the allowable distance
for transverse bracing add transverse braces until the spacing does not exceed the allowable
transverse brace distance.
Straight Run
Additional Transverse Braces
d) Each straight run must have at least one longitudinal brace. Add longitudinal braces so that the
spacing does not exceed the allowable longitudinal brace spacing in Appendixes 1 & 2.
Straight Run
Longitudinal Brace (Transverse brace
for the adjacent run)
Longitudinal Brace
24” (610mm) Max.
Longitudinal Brace
(Transverse brace for
the adjacent run)
24” (610mm) Max.
Note: A transverse brace may dually act as a longitudinal brace for an adjacent run when it is
located within 24” of the adjacent straight run. However, Appendixes 1 & 2 shall be reviewed to
use the stronger of the longitudinal or transverse brace requirements, i.e. anchor and other
component sizes.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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GENERAL INFORMATION
e) In many cases, several short runs occur one after the other. Based on previous requirements,
each straight run requires a longitudinal brace when the adjacent short runs exceed the maximum
offset length (ft.). When the adjacent short runs do not exceed the maximum offset length (ft.) the
longitudinal braces can act as transverse braces as long as the allowable transverse brace spacing
(Appendixes 1 & 2) is not exceeded.
In the following layout, transverse braces are used as longitudinal braces when the straight runs
are less than the maximum offset length (ft.). When a straight run exceeds the maximum offset
length (ft.) additional braces are required.
Second Transverse Brace
First Transverse Brace
Longitudinal
brace
Two braces may
be required.
Short run less
than the maximum
offset length (ft.)
Straight run
exceeding the
maximum offset
length (ft.)
Longitudinal
brace
Multiple offsets can be treated as a single run when the
total offset is less than the maximum offset length (ft.).
Plan or Elevation
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
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Sheet Number:
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Structural Engineer
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GENERAL INFORMATION
f)
When a flexible connection or swing joint is used, such as at a pipe drop to mechanical
equipment, the pipe may cantilever at a length equal to or less than half the allowable transverse
brace spacing (Appendixes 1 & 2). When greater than half the allowable transverse brace
spacing, support to the floor is required as shown below.
Transverse brace at the
end of horizontal run
Straight Run
Requires a flexible connection or
swing joint between equipment.
Allowable Transverse Brace Spacing
2
Mechanical equipment.
If < 6 ft.
Support to Floor
Is Required.
Floor
Step 4: Note the structure connection type (brace anchor requirements) from the Appendix,
and select the brace anchorage detail to suit (pages 23 thru 38).
Step 5: Note the hanger rod load from the Appendix, and select a rod attachment to structure
to suit (pages 39 thru 56).
Step 6: Check if rod stiffeners are required (pages 57 & 58) to prevent the hanger rod from
buckling.
Seismic restraints may typically be omitted from the following installations:
(Verify with structural engineer of record for site specific project.)
1. Fuel piping less than 1 inch (25 mm) inside diameter.
2. All other piping less than 21/2 inches (63 mm) inside diameter, except medical gas including
vacuum piping.
3. All piping suspended by individual hangers 12 inches (305 mm) or less in length from the top of
the pipe to the bottom of the support for the hanger; where rod hangers are not subject to
bending moments. (To eliminate bending moment flexible connections may be used such as the
B752 on page 49 or B446 & B446C on page 56)
4. All electrical conduit less than 21/2 inches (63 mm) trade size.
5. All rectangular air handling ducts less than 6 sq. ft. (.56 m2) in cross sectional area.
6. All round air handling ducts less than 28 inches (711 mm) in diameter.
7. All ducts suspended by hangers 12 inches (305 mm) or less in length from the top of the duct to
the bottom of the support for the hanger; where rod hangers are not subject to bending
moments. (To eliminate bending moment flexible connections may be used such as the B752 on
page 49 or B446 & B446C on page 56)
NOTE: Reference building code enforced by local authority having
jurisdiction for specific requirements.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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GENERAL NOTES FOR SEISMIC BRACING
GENERAL NOTES FOR SEISMIC BRACING
A) The seismic restraint assemblies shown in this pre-approval document are designed to resist
vertical loading simultaneously with seismic loading (transverse & longitudinal loading). Design
recommendations shown are for single standard weight steel pipes filled with water. Contents
other than water shall be evaluated by the user. Pipes of other approved materials shall be
supported in accordance with their approved installation standards. Details not shown in this
pre-approval shall be submitted to OSHPD for approval before installation if necessary.
B) This bracing system is limited to the pipe sizes and support details shown. Special
consideration must be given for pipe material and connections, insulation, thermal movement,
vibration, and building seismic joints.
C) Transverse and longitudinal braces shall be no more than 45° above or below the centerline of
the pipe, duct, or tray.
D) All channel and pipe clamp nuts and bolts shall be tightened to the following torques:
1/4"-20 to 6 ft.-lbs. (8 N•m)
3/8"-16 to 19 ft.-lbs. (26 N•m)
1/2"-13 to 50 ft.-lbs. (68 N•m)
5/8"-11 to 65 ft.-lbs. (88 N•m)
3/4"-10 to 75 ft.-lbs. (101 N•m)
E) The transverse and longitudinal bracing spacing listed in Appendix 1 & 2 is based on ductile
piping (steel, copper, etc.) with ductile connections (welded, brazed, etc.) and has the following
limitations:
1) Transverse bracing shall not exceed 40’-0” (12.2 m).
Longitudinal bracing shall not exceed 80’-0” (24.4 m).
2) Fuel piping shall have transverse bracing 20'-0" (6.1 m) o.c. maximum and
longitudinal bracing 40'-0" (12.2 m) o.c. maximum.
3) Non-ductile piping, and piping with non-ductile connections shall have transverse
bracing 20'-0" (6.1 m) o.c. maximum and longitudinal bracing 40'-0" (12.2 m) o.c.
maximum or 1/2 of the calculated brace spacing indicated in Appendix 1 or 2,
whichever is more restrictive.
F)
Transverse bracing for one pipe section may also act as longitudinal bracing for the pipe
section connected to it, if the bracing is installed within 24 inches (609 mm) of the elbow or tee
of similar size. Figures 2 and 4 do not serve as adequate longitudinal braces.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
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of
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Structural Engineer
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GENERAL NOTES FOR SEISMIC BRACING
G) Branch lines of a smaller diameter shall not be used to brace main lines.
H) Where rod stiffeners are required a minimum of two hanger rod stiffener assemblies shall be
installed. (Part number SC-228 or SC-UB)
I)
It is important to check anchorage details against the applicable building code requirements.
Seismic design forces may increase substantially when anchors are considered “shallow”
(embedded less than 8 times the anchor diameter).
J)
When bracing trapeze type hangers, the bracing shall be attached directly to the trapeze hanger
assembly and piping secured to the trapeze assembly with pipe straps.
K) A rigid piping system shall not be braced to different parts of a building that may respond
differently during an earthquake. Example: Solid concrete wall and a roof (metal deck filled with
lightweight concrete). Special care should be taken to avoid bracing rigid pipe on both sides of
a building seismic joint without allowing for pipe and building movement.
L) The pre-approval document is based on British Units (Inches & Pounds) and values noted in
parenthesis (Metric or S.I. Units) are equivalent values. In case of conflicts, British Units will be
the standards for evaluating the proper application of pre-approvals.
M) The designer of the structure shall determine the adequacy of the support structure to carry the
load of the piping and equipment. Engineer of record for a site specific project shall verify that
the structure can support the connection loads of the hanger rod and the bracing attachments.
This pre-approval document is not intended for the seismic design of the piping itself. The
dynamic properties of the building structure and piping should be considered when selecting
the type of piping to be installed.
N) Seismic bracing shall not limit the expansion and contraction of the piping system. Always
consider thermal movements when selecting brace locations and materials. The design for
thermal movements is beyond the scope of OSHPD pre-approval.
P) No portion of this pre-approval shall be taken out of context and used in other systems,
design or purpose.
Q) On transverse bracing, the pipe insulation material may be part of the brace assembly (i.e) in
the load path. In this case the insulating material shall be capable of withstanding the lateral
forces without damage and shall include a pipe shield for hangers or a pipe saddle for rollers.
For longitudinal bracing, clamping must be applied directly to the pipe with any insulation
being installed directly over the hanger and brace assembly. In these applications the
mechanical engineer of record shall be contacted for insulating recommendations.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
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Page 12
B-LINE CHANNEL BRACES
The following B-Line channels may be used as brace members for
Figures 1 - 11 using the following structure connection types:
Channel
Type*
Maximum
Structure
Connection
Type**
B54
IV
B52
IV
B42
V
B32
V
B24
IV
B22
V
B22A
V
B11
IV
Maximum
Brace
Length
Channel
Height
(m)
4’-10”
4’-8”
5’-10”
8’-0”
9’-7”
9’-5”
10’-10”
11’-7”
Channel
Width
(mm)
(1.47)
13/16”
(1.42)
13/16”
(1.78)
1”
(2.44)
13/8”
(2.92)
15/8”
(2.74)
15/8”
(3.30)
31/4”
(3.53)
31/4”
Material
Thickness
(mm)
(mm)
(20.6)
1 5/8”
(41.3)
14 Ga.
(1.9)
(20.6)
1
5/8”
(41.3)
12 Ga.
(2.6)
1
5/8”
(41.3)
12 Ga.
(2.6)
1
5/8”
(41.3)
12 Ga.
(2.6)
1
5/8”
(41.3)
14 Ga.
(1.9)
1
5/8”
(41.3)
12 Ga.
(2.6)
1
5/8”
(41.3)
12 Ga.
(2.6)
1
5/8”
(41.3)
12 Ga.
(2.6)
(25.4)
(34.9)
(41.3)
(41.3)
(82.5)
( 82.5)
*Slotted channel (SH) versions of all the above types may also be used for brace members.
See page 21 for channel details.
**The Structure Connection Type is the brace anchorage requirement.
See pages 23 - 38 for brace attachment details.
Note: Do not exceed the maximum brace length or maximum structure connection
type for the channels listed.
Commentary:
Appendix 1 & 2 list the allowable structure connection type (I, II, III, IV, or V) for each brace spacing listed. The
structure connection type limits the amount of axial load (in tension or compression) which is applied to the
brace member. The axial load is listed for each structure connection detail on pages 23 - 38, and is as follows:
Structure Connection Type
I
II
III
IV
V
Maximum Axial Load in Brace Member
.......................................
......................................
......................................
......................................
......................................
175 lbs.
300 lbs.
450 lbs.
675 lbs.
975 lbs.
(0.78 kN)
(1.33 kN)
(2.00 kN)
(3.00 kN)
(4.33 kN)
The B-Line channel brace member must have a capacity greater than the value listed in the above table for the
maximum recommended brace length.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
11
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 13
SINGLE PIPE/CONDUIT BRACING
Single Rod Hanger Pipe Bracing
1) Layout piping run and determine size and location of piping.
2) Select vertical supports (single rod pipe hangers).
a) Select type of hanger dependent on type of pipe, thermal expansion and contraction, etc.
b) Determine maximum spacing of hanger rods and minimum hanger rod diameter.
(Appendix 1)
c) Select hanger rod connection to the structure based on structure type, rod size and hanger
rod load from Appendix 1. Refer to section on hanger rod attachment for
details (pages 39 thru 56)
d) Engineer of record for a site specific project shall verify that the structure can support
the connection loads.
3) Select lateral bracing (transverse and longitudinal bracing).
a) Select bracing details (transverse & longitudinal) from Figures 1 thru 8.
b) Determine maximum spacing for transverse and longitudinal braces. (Appendix 1)
c) Determine the type of structure connection required. (Appendix 1)
Refer to section on structural attachments for connection details.
d) Determine if rod stiffener is required. (pages 57 & 58)
e) Engineer of record for a site specific project shall verify that the structure can support
the connection loads.
4) Review the design and revise layout where loads exceed the limitations of the hanger rods,
hangers or connection details.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
12
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4:35 PM
Page 14
SINGLE PIPE BRACING
CLEVIS HANGER TRANSVERSE BRACING
(Figure 1)
ATR
All Threaded Rod
Pipe Size
(See Page 57 for
minimum diameter)
Rod Stiffener
(See Pages 57 & 58)
1 (Min.)
B-Line Channel
Transverse Brace
1
Adjustable
Hinge
Part No.
Pipe
Sleeve
Part No.*
N/A
in.
(mm)
Clevis Hanger
Part No.
1/2"
(15)
B3100-1/2
N/A
3/4"
(20)
B3100-3/4
N/A
N/A
1"
(25)
B3100-1
B335-2-3/8
B3100PS-1
11/4"
(32)
B3100-11/4
B335-2-3/8
B3100PS-11/4
11/2"
(40)
B3100-11/2
B335-2-3/8
B3100PS-11/2
2"
(50)
B3100-2
B335-2-3/8
B3100PS-2
21/2"
(65)
B3100-21/2
B335-2-3/8
B3100PS-21/2
3"
(80)
B3100-3
B335-2-3/8
B3100PS-3
31/2"
(90)
B3100-31/2
B335-2-3/8
B3100PS-31/2
B335-2-Bolt Size
Adjustable Hinge
4"
(100)
B3100-4
B335-2-3/8
B3100PS-4
5"
(125)
B3100-5
B335-2-1/2
B3100PS-5
(See Page 59)
6"
(150)
B3100-6
B335-2-1/2
B3100PS-6
8"
(200)
B3100-8
B335-2-5/8
B3100PS-8
10"
(250)
B3100-10
B335-2-3/4
B3100PS-10
12"
(300)
B3100-12
B335-2-3/4
B3100PS-12
(See page 11)
B3100PS Pipe Sleeve
B3100 Series Clevis Hanger
* Not included when ordering standard B3100 Series Clevis Hanger.
(See Page 63)
Notes: Pipe sleeve required over cross bolt of Clevis Hanger when using the brace connection shown above (Figure 1).
Pipe sleeve is not required when clevis hanger is used in conjunction with the bracing shown in Figure 5 - page 15.
Refer to Note Q) on page 10 for installations requiring insulated pipe.
"J" HANGER TRANSVERSE BRACING
(Figure 2)
Rod Stiffener
May Be Required
(See Pages 57 & 58)
1 Min.
Pipe Size
1
ATR
All Threaded Rod
(See Page 57 for
minimum diameter)
B-Line Channel
Transverse Brace
(See page 11)
B335-2-Bolt Size
Adjustable Hinge
(See Page 59)
B3690 Series
'J' Hanger
(See Page 64)
Adjustable
Hinge
Part No.
N/A
in.
(mm)
"J" Hanger
Part No.
1/2"
(15)
B3690-1/2
3/4"
(20)
B3690-3/4
1"
(25)
B3690-1
B335-2-3/8
11/4"
(32)
B3690-11/4
B335-2-3/8
11/2"
(40)
B3690-11/2
B335-2-3/8
2"
(50)
B3690-2
B335-2-3/8
21/2"
(65)
B3690-21/2
B335-2-1/2
3"
N/A
(80)
B3690-3
B335-2-1/2
31/2"
(90)
B3690-31/2
B335-2-1/2
4"
(100)
B3690-4
B335-2-1/2
5"
(125)
B3690-5
B335-2-1/2
6"
(150)
B3690-6
B335-2-1/2
8"
(200)
B3690-8
B335-2-1/2
Note: Refer to Note Q) on page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
13
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 15
SINGLE PIPE BRACING
PIPE CLAMP TRANSVERSE BRACING
(Figure 3)
ATR
All Threaded Rod
Rod Stiffener
May Be Required
(See Page 57)
(See Pages 57 & 58)
1 (Min.)
in.
(mm)
Pipe Clamp *
Part No.
Adjustable
Hinge
Part No.
11/2"
(40)
B3144-11/2
B335-2-1/2
2"
(50)
B3144-2
B335-2-1/2
(65)
B3144-21/2
B335-2-1/2
Pipe Size
21/2"
3"
(80)
B3144-3
B335-2-1/2
4"
(100)
B3144-4
B335-2-5/8
5"
(125)
B3144-5
B335-2-5/8
6"
(150)
B3144-6
B335-2-3/4
8"
(200)
B3144-8
B335-2-3/4
10"
(250)
B3144-10
B335-2-3/4
12"
(300)
B3144-12
B335-2-3/4
B-Line Channel
Transverse Brace
1
B3200 Series
Weldless Eye Nut
(See page 11)
B335-2-Bolt Size
Adjustable Hinge
(See Page 59)
B3144 Series
Double Bolt Pipe Clamp
(See Page 65)
Note: Refer to Note Q) on page 10 for installations requiring insulated pipe.
* See note D) on page 9 for clamp torque values.
PIPE ROLLER TRANSVERSE BRACING
(Figure 4)
ATR
All Threaded Rod
(See Page 57 for
minimum diameter)
Rod Stiffener
(See Pages 57 & 58)
Pipe Size
1 (Min.)
Pipe Roller
Part No.
Adjustable
Hinge
Part No.
in.
(mm)
21/2"
(65)
B3110-21/2
B335-2-1/2
3"
(80)
B3110-3
B335-2-1/2
31/2"
(90)
B3110-21/2
B335-2-1/2
B-Line Channel
Transverse Brace
4"
(100)
B3110-4
B335-2-1/2
5"
(125)
B3110-5
B335-2-5/8
(See page 11)
6"
(150)
B3110-6
B335-2-3/4
1
B335-2-Bolt Size
Adjustable Hinge
(See Page 59)
B3110 Series
Adjustable Steel Yoke Pipe Roll
(See Page 66)
Note: Refer to Note Q) on page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
14
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Page 16
SINGLE PIPE BRACING
TRANSVERSE BRACING
(Figure 5)
1 (Min.)
B2400 Series
Pipe Strap
1
(See Page 71)
B-Line Channel
Transverse Brace
(See page 11)
3” min.
(76mm)
Channel Nuts & Bolts Not Included (See Pages 61 & 62)
Notes: Install brace within 4" (101mm) of hanger. (Hanger not shown for clarity. See Figure 6 below)
Refer to Note Q) on page 10 for installations requiring insulated pipe
LONGITUDINAL BRACING
(Figure 6)
Rod Stiffener May Be Required
(See Pages 63 & 64)
B335V-Bolt Size
Adjustable Half Hinge
in.
(mm)
Pipe
Clamp*
Part No.
1"
(25)
B3140-1
B335V-1/2
B3373-1
B335V-1/2
(32)
B3140-11/4
B335V-1/2
B3373-11/4
B335V-1/2
(40)
B3140-11/2
B335V-1/2
B3373-11/2
B335V-1/2
(50)
B3140-2
B335V-1/2
B3373-2
B335V-1/2
(65)
B3140-21/2
B335V-1/2
B3373-21/2
B335V-1/2
Pipe Size
(See Page 59)
11/4"
B-Line Channel
Longitudinal Brace
11/2"
(See page 11)
21/2"
2"
4” max.
(101mm)
B3140 Pipe Clamp
or B3373 Riser Clamp
Series
(See Pages 67 & 69)
Riser
Clamp *
Part No.
Adjustable
Half Hinge
Part No.
(80)
B3140-3
B335V-1/2
B3373-3
B335V-1/2
31/2"
(90)
B3140-31/2
B335V-1/2
B3373-31/2
B335V-1/2
4"
(100)
B3140-4
B335V-5/8
B3373-4
B335V-1/2
5"
(125)
B3140-5
B335V-5/8
B3373-5
B335V-1/2
6"
(150)
B3140-6
B335V-3/4
B3373-6
B335V-1/2
8"
(200)
B3140-8
B335V-3/4
B3373-8
B335V-5/8
10"
(250)
--
--
B3373-10
B335V-5/8
12"
(300)
--
--
B3373-12
B335V-5/8
3"
Pipe
Hanger
or
Support
Adjustable
Half Hinge
Part No.
* See note D) on page 9 for clamp torque values.
Notes: Install brace within 4" (101mm) of hanger.
Refer to Note Q) on page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
15
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 17
SINGLE PIPE BRACING - COPPER TUBING
CLEVIS HANGER TRANSVERSE BRACING
(Figure 7)
ATR
All Threaded Rod
Copper
Tubing Size
(See Page 57 for
minimum diameter)
Adjustable
Hinge
Part No.
Pipe
Sleeve
Part No.*
N/A
in.
(mm)
Clevis Hanger
Part No.
1/2"
(15)
B3104CT-1/2
N/A
3/4"
(20)
B3104CT-3/4
N/A
N/A
1"
(25)
B3104CT-1
B335-2-3/8
B3104CTPS-1
11/4"
(32)
B3104CT-11/4
B335-2-3/8
B3104CTPS-11/4
11/2"
(40)
B3104CT-11/2
B335-2-3/8
B3104CTPS-11/2
2"
(50)
B3104CT-2
B335-2-3/8
B3104CTPS-2
21/2"
(65)
B3104CT-21/2
B335-2-3/8
B3104CTPS-21/2
B335-2-Bolt Size Adjustable Hinge
3"
(80)
B3104CT-3
B335-2-3/8
B3104CTPS-3
(See Page 59)
31/2"
(90)
B3104CT-31/2
B335-2-3/8
B3104CTPS-31/2
4"
(100)
B3104CT-4
B335-2-3/8
B3104CTPS-4
Rod Stiffener
(See Pages 57 & 58)
1 (Min.)
B-Line Channel
Transverse Brace
1
(See page 11)
B3104CTPS Pipe Sleeve
* Not included when ordering standard B3104CT Series Clevis Hanger.
B3104CT Series Clevis Hanger
(See Page 68)
Notes: Pipe sleeve required over cross bolt of Clevis Hanger when using the brace connection shown above (Figure 7).
Refer to Note Q) on page 10 for installations requiring insulated pipe.
LONGITUDINAL BRACING
(Figure 8)
Rod Stiffener May Be Required
(See Pages 57 & 58)
B335V-Bolt Size
Adjustable Half Hinge
Copper
Tubing Size
(See Page 59)
B-Line Channel
Longitudinal Brace
(See page 11)
Pipe Hanger
or Support
4” max.
(101mm)
Note: Install brace within 4" (101mm) of hanger.
Refer to Note Q) on page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
S 3913
(mm)
1"
(25)
B3373CT-1
B335V-1/2
B335V-1/2
11/4"
Adjustable
Half Hinge
Part No.
(32)
B3373CT-11/4
11/2"
(40)
B3373CT-11/2
B335V-1/2
2"
(50)
B3373CT-2
B335V-1/2
21/2"
(65)
B3373CT-21/2
B335V-1/2
3"
(80)
B3373CT-3
B335V-1/2
31/2"
(90)
B3373CT-31/2
B335V-1/2
4"
(100)
B3373CT-4
B335V-1/2
* See note D) on page 9 for clamp torque values.
B3373CT
Riser Clamp Series
(See Page 69)
Raafat S. Aboulhosn
Structural Engineer
in.
Riser
Clamp *
Part No.
Date:
Page No.
Sheet Number:
12 - 9 - 02
16
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Page 18
TRAPEZE BRACING
Trapeze Assembly Bracing
1). Layout piping and/or conduit runs and determine number, size and location of items to be supported by
the trapeze
2). Determine trapeze support spacing (LT). This is usually determined by the maximum support spacing of
the smallest pipe or conduit on the trapeze.
3). Select trapeze supports.
a). Determine the total vertical load (TL) for each trapeze.
TL = LT x WT
TL = Total vertical load for each trapeze support (lbs.)
LT = Trapeze support spacing (ft.)
WT = Weight of all piping, cable tray, ductwork, conduit, etc. in lbs./ft. supported by the trapeze
b). Determine length of trapeze, making sure sufficient length is added to attach the all threaded rod and
bracing attachments. All channel nuts shall be fully engaged within strut.
(13/16” (20mm) minimum distance from edge of strut to center line of bolt.)
c). Select type of trapeze member (B22, B22AMIG, etc.) by selecting a member with loading greater
than the total load (TL). See Table 4 on page 22 for strut loading data, noting that the trapeze beam
span is the distance between the hanger rods. Also determine whether the applied load is uniform or
concentrated, and follow notes on page 22 accordingly. Variations in pipe sizes (simular to concentrated
load assembly on page 22) shall be treated as a concentrated load, where as same sized pipes evenly
distributed across the span (similar to uniform load assembly on page 22) may be treated as a uniform
load. Uniform loads on page 22 are converted to a concentrated load by a 50% reduction. Do not
exceed the beam span length given by Table 4A on page 22, which limits overloading due to
longitudinal seismic force.
d). Determine hanger rod size from Appendix 2 based on total weight (WT) and trapeze support spacing
(LT). Rod sizes are given for trapeze supports with braces attached and unbraced trapezes.
e). Select a hanger rod connection to structure (pages 39 thru 56) that is greater than the hanger rod loads
listed in Appendix 2.
4). Select transverse and longitudinal bracing.
a). Select bracing detail from Figures 9 - 11.
b). Determine spacing of transverse / longitudinal bracing from Appendix 2 based on total weight (Wt)
and the trapeze support span (Lt). Note the corresponding structure attachment type (Roman numeral
I - V) for each possible brace interval. When supporting multiple pipe sizes, do not exceed the
maximum spacing for the smallest pipe as given in Appendix 1.
Verify that the specific forces do not exceed the capacity of the pipe clamps on pages 70 & 71.
c). Determine if rod stiffener is required (pages 57 & 58).
d). Engineer of record for a site specific project shall verify that the structure can support the
connection loads.
5). Review the design and revise layout where loads exceed the limitations of the hanger rods, strut trapeze
supports, or connection details.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
17
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 19
TRAPEZE BRACING
TRAPEZE TRANSVERSE AND LONGITUDINAL BRACING (Figure 9)
B-Line Channel
Longitudinal Brace
B335-2-Bolt Size
Adjustable Hinge
(See page 11)
ATR
All Threaded Rod
(See Page 57)
(See Page 59)
Rod Stiffener
(See Pages 57 & 58)
B2400
Series
Pipe Straps
1
(See Page 71)
1 (Min.)
B-Line Channel
Transverse Brace
B-Line Channel
Transverse Brace
(See page 11)
(See page 11)
B335-2-1/2 Adjustable Hinge
Transverse Brace
B335-2-1/2 Adjustable Hinge
Longitudinal Brace
Hex Nut &
(See Page 59)
Square Washer
(See Page 59)
B-Line Channel - Size as Required
B2000 Series
Pipe Straps
(See Page 22 - Table 4 & 4A For
Channel Load Data)
(See Page 62)
(See Page 70)
See Note 3b
on page 17
Notes:
1). B335-2 adjustable hinges for longitudinal braces may be attached on either side adjacent
to the all thread rod, or attached to the all thread rod itself.
2). B335-2 adjustable hinges for transverse braces may be attached to the all thread rod.
3). Two B335-2 adjustable hinges may be attached to the strut trapeze using the same bolt
or all thread rod.
4). It is not necessary to install both transverse braces and longitudinal braces on the same trapeze
support. Either set of braces may be removed to form a longitudinal brace only or a transverse
brace only if desired.
5). Longitudinal braces, when needed, must be installed at both ends of trapeze.
6). The equipment shown on this trapeze support is generic in nature. Any number of pipes,
conduits, ductwork or cable tray may be supported following the system weight and support
spans listed in Appendix 2 - Table 1.
7). Torque all nuts per Note D, page 9.
8). Refer to note Q, page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
18
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Page 20
TRAPEZE BRACING
TRAPEZE TRANSVERSE AND LONGITUDINAL BRACING (Figure 10)
B-Line Channel
Longitudinal Brace
(See page 11)
B335-2-Bolt Size
Adjustable Hinge
ATR
All Threaded Rod
(See Page 57)
(See Page 59)
Rod Stiffener
(See Pages 57 & 58)
1
Cable Tray
1 (Min.)
B-Line Channel
Transverse Brace
B-Line Channel
Transverse Brace
(See page 11)
(See page 11)
B335-2-1/2 Adjustable Hinge
Transverse Brace
B335-2-1/2 Adjustable Hinge
Longitudinal Brace
Hex Nut &
(See Page 59)
Square Washer
(See Page 59)
(See Page 62)
B-Line Channel - Size as Required
B2000 Series Pipe Straps
(See Page 22 - Table 4 & 4A For
Channel Load Data)
(See Page 70)
See Note 3b
on page 17
B2400 Series
Pipe Straps
(See Page 71)
Notes:
1). B335-2 adjustable hinges for longitudinal braces may be attached on either side adjacent
to the all thread rod, or attached to the all thread rod itself.
2). B335-2 adjustable hinges for transverse braces may be attached to the all thread rod.
3). Two B335-2 adjustable hinges may be attached to the strut trapeze using the same bolt
or all thread rod.
4). It is not necessary to install both transverse braces and longitudinal braces on the same trapeze
support. Either set of braces may be removed to form a longitudinal brace only or a transverse
brace only if desired.
5). Longitudinal braces, when needed, must be installed at both ends of trapeze.
6). The equipment shown on this trapeze support is generic in nature. Any number of pipes,
conduits, ductwork or cable tray may be supported following the system weight and support
spans listed in Appendix 2 - Table 1.
7). Torque all nuts per Note D, page 9.
8). Refer to note Q, page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
19
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 21
TRAPEZE BRACING
TRAPEZE TRANSVERSE AND LONGITUDINAL BRACING (Figure 11)
B-Line Channel
Longitudinal Brace
(See page 11)
ATR
All Threaded Rod
(See Page 57)
Rod Stiffener
1
B2400
Series
Pipe Straps
(See Pages 57 & 58)
1 (Min.)
(See Page 71)
B-Line Channel
Transverse Brace
(See page 11)
B-Line Channel Size as Required
(See Page 22 Table 4 & 4A For
Channel Load Data)
B335-2-1/2 Adjustable Hinge
Longitudinal Brace
Hex Nut &
Square Washer
B2000 Series
Pipe Straps
(See Page 59)
(See Page 62)
(See Page 70)
See Note 3b
on page 17
Notes:
1). B335-2 adjustable hinges for longitudinal braces may be attached on either side adjacent
to the all thread rod, or attached to the all thread rod itself.
2). B335-2 adjustable hinges for transverse braces may be attached to the all thread rod.
3). Two B335-2 adjustable hinges may be attached to the strut trapeze using the same bolt
or all thread rod.
4). It is not necessary to install both transverse braces and longitudinal braces on the same trapeze
support. Either set of braces may be removed to form a longitudinal brace only or a transverse
brace only if desired.
5). Longitudinal braces, when needed, must be installed at both ends of trapeze.
6). The equipment shown on this trapeze support is generic in nature. Any number of pipes,
conduits, ductwork or cable tray may be supported following the system weight and support
spans listed in Appendix 2 - Table 2.
7). Torque all nuts per Note D, page 9.
8). Refer to note Q, page 10 for installations requiring insulated pipe.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
20
of
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 22
APPROVED COMPONENTS
Seismic Approvals: Trapeze Hanger, Longitudinal Brace, Transverse Brace, Threaded Stiffener
Single Channel
“A” Channel
Y
15/8"
(41mm)
3/8"
3/8"
7/8"
(9mm)
‘Hx’
(9mm)
(22mm)
9/32"
Y
(7mm)
X
‘H’
X
‘H’
X
X
‘Hx’
Notes:
Y
Y
Standard Lengths: 10 ft. (3.05 m)
& 20 ft. (6.09 m)
Finishes: Plain, Dura-Green
Epoxy, and Pre-Galvanized
13/16"
13/16"
(20mm)
(20mm)
15/8"
(41mm)
Height Dimensions
Channel
‘H’
B54
B52
B42
B32
B24
B22
B22A
B12
B12A
B11
B11A
B_ _SH
‘Hx”
in.
(mm)
13/16”
(20)
13/16”
(20)
1”
13/8”
15/8”
15/8”
31/4”
27/16”
47/8”
31/4”
61/2”
(25)
in.
(mm)
0.3422
0.3366
0.4226
0.6052
0.7304
0.7189
1.6250
1.1127
2.4375
1.5112
3.2500
(35)
(41)
(41)
(82)
(62)
(124)
(82)
(165)
9/16" (14mm)
x 7/8" (22mm) slots
2" (51mm) on centers.
1" (25mm) from end of channel to center of first slot.
(8.7)
(8.5)
(10.7)
(15.4)
(18.5)
B_ _SHA
(18.2)
(41.3)
9/16" (14mm)
x 7/8" (22mm) slots 2" (51mm) on centers.
1" (25mm) from end of channel to center of first slot.
All B12SHA & B11SHA channels are mig welded.
(28.2)
(61.9)
(38.4)
(82.5)
Table 3
SECTION PROPERTIES
Channel
B54
B52
B42
B32
B24
B22
B22A
B12
B12A
B11
B11A
Weight
lbs./ft.
kg/m
1.01
1.31
1.47
1.73
1.44
1.90
3.80
2.47
4.94
3.05
6.10
(1.51)
(1.95)
(2.18)
(2.58)
(2.15)
(2.83)
(5.65)
(3.67)
(7.35)
(4.54)
(9.08)
X -X Axis
Areas of
Section
in.2
(cm2)
Moment of
Inertia (I)
in.4
Section
Modulus (S)
(cm4)
.299 (1.93) .0263
(1.09)
.386 (2.49) .0320
(1.33)
.432 (2.79) .0554
(2.31)
.510 (3.29) .1252
(5.21)
.424 (2.74) .1494
(6.22)
.559 (3.61) .1850
(7.70)
1.118 (7.21) .9379 (39.04)
.727 (4.69) .5203 (21.65)
1.453 (9.37) 2.8132 (117.09)
.897 (5.79) 1.0917 (45.44)
1.794 (11.59) 6.2139 (258.64)
in.3
(cm3)
Y - Y Axis
Radius of
Gyration (R)
in.
.0560 (0.92) .297
.0673 (1.10) .288
.0968 (1.59) .358
.1626 (2.67) .496
.1670 (2.74) .594
.2042 (3.34) .580
.5772 (9.46) .924
.3927 (6.43) .852
1.1541 (18.91) 1.402
.6278 (10.29) 1.112
1.9120 (31.33) 1.876
(cm)
(0.75)
(0.73)
(0.91)
(1.26)
(1.51)
(1.47)
(2.34)
(2.16)
(3.56)
(2.82)
(4.76)
Moment of
Inertia (I)
in.4
(cm4)
.1106
.1404
.1645
.2098
.1857
.2340
.4681
.3306
.6611
.4271
.8542
(4.60)
(5.84)
(6.85)
(8.73)
(7.73)
(9.74)
(19.48)
(13.76)
(27.52)
(17.78)
(35.55)
Section
Modulus (S)
in.3
(cm3)
.1361 (2.23)
.1728 (2.83)
.2025 (3.32)
.2582 (4.23)
.2286 (3.75)
.2880 (4.72)
.5761 (9.44)
.4068 (6.66)
.8137 (13.33)
.5256 (8.61)
1.0513 (17.23)
Radius of
Gyration (R)
in.
.608
.603
.617
.642
.662
.653
.653
.679
.679
.696
.696
(cm)
(1.55)
(1.53)
(1.57)
(1.63)
(1.68)
(1.66)
(1.66)
(1.72)
(1.72)
(1.77)
(1.77)
Calculations of section properties are based on metal thicknesses as determined by the AISI Cold-Formed Steel Design Manual.
For channel loading see page 22.
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Date:
Page No.
Sheet Number:
12 - 9 - 02
21
of
Raafat S. Aboulhosn
Structural Engineer
S 3913
**SRS2002-OSpg.ii-25 (11/02) N
1/3/03
4:35 PM
Page 23
TRAPEZE BRACING
Typical Trapeze
ATR
ATR
Beam Span (BS)
Beam Span (BS)
B-Line Channel
(See below)
Uniform Load
Concentrated Load
Table 4
Channel Type & Uniform Beam Load Rating
Beam Span
(BS)
B22SH
lbs.
(kN)
B22
B22A
B12
B12A*
(kN)
B11
B11A*
in.
(mm)
lbs.
(kN)
lbs.
(kN)
lbs.
(kN)
lbs.
lbs.
(kN)
12"
(305)
2553 (11.35)
2837
(12.62)
8165
(36.32)
5498
(24.45)
3259
(14.49)
4395
(19.54)
4309
lbs.
(19.16)
(kN)
24"
(610)
1276
(5.68)
1418
(6.31)
4083
(18.16)
2750
(12.23)
3259
(14.49)
4395
(19.54)
4309
(19.16)
36"
(914)
851
(3.78)
946
(4.21)
2722
(12.11)
1833
(8.15)
3259
(14.49)
2930
(13.03)
4309
(19.16)
48"
(1219)
638
(2.84)
709
(3.15)
2042
(9.08)
1374
(6.11)
3259
(14.49)
2197
(9.77)
4309
(19.16)
60"
(1524)
511
(2.27)
568
(2.52)
1633
(7.26)
1100
(4.89)
3231
(14.37)
1758
(7.82)
4309
(19.16)
72"
(1829)
426
(1.89)
473
(2.10)
1361
(6.05)
916
(4.07)
2693
(11.98)
1465
(6.51)
4309
(19.16)
84"
(2133)
365
(1.62)
405
(1.80)
1167
(5.19)
785
(3.49)
2308
(10.26)
1256
(5.58)
3824
(17.01)
96"
(2438)
319
(1.42)
354
(1.57)
1021
(4.54)
687
(3.05)
2019
(8.98)
1011
(4.49)
3346
(14.88)
108"
(2743)
284
(1.26)
315
(1.40)
908
(4.04)
611
(2.72)
1795
(7.98)
977
(4.34)
2974
(13.23)
120"
(3048)
255
(1.13)
283
(1.26)
817
(3.63)
550
(2.44)
1616
(7.19)
879
(3.91)
2677
(11.91)
• Loads shown in chart have a safety factor of 2.
• Based on uniformly loaded simple span with adequate lateral bracing using an allowable stress of 21,000 psi (144.7 MPa).
• To determine concentrated load capacity at mid-span, multiply the uniform load by 0.5.
• Refer to note 3c) on page 17 for uniform and concentrated load requirements.
• Use 90% of the solid channel loads for corresponding SH and SHA channels.
• Refer to note Q) on page 10 for installations requiring insulated pipe.
* These back to back channels are mig welded.
Table 4A
Structure
Connection
Type
B22SH
Channel type and maximum beam span for
longitudinal beam loading
B22A
B12
B12A*
B22
B11
B11A*
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
I
176
(4470)
196
(4978)
391
(9931)
276
(7010)
552
(14021)
357
(9068)
714
(18135)
II
103
(2616)
114
(2895)
228
(5791)
161
(4089)
322
(8179)
208
(5283)
416
(10566)
III
68
(1727)
76
(1930)
152
(3861)
107
(2718)
215
(5461)
139
(3530)
278
(7061)
IV
46
(1168)
51
(1295)
101
(2565)
72
(1829)
143
(3632)
93
(2362)
185
(4699)
V
32
(813)
35
(889)
70
(1778)
50
(1270)
99
(2514)
64
(1625)
128
(3251)
COOPER B-Line
509 West Monroe Street
Highland, Illinois 62249
Phone: 618-654-2184
Fax: 618-654-1917
Raafat S. Aboulhosn
Structural Engineer
S 3913
Date:
Page No.
Sheet Number:
12 - 9 - 02
22
of