Seismic Installation Manual
This manual provides the design strength capacities and installation guidelines for the Restraint systems brace components for use in the design of an overall bracing/restraint system for suspended nonstructural components, equipment, and systems. 2
Contents / Page Number Section 1: Introduction 1.1 Scope 4 1.2 Kit Contents 5 1.3 System Strengths 6 1.4 Description of Bracing Assemblies 1.4.1 Transverse 7 1.4.2 Longitudinal 8 1.4.3 4-Way 9 1.5 Brace Spacing Guidelines 10-12 Section 2: Seismic Bracing Kit and Components Overview 2.1 Kit Contents 13 2.2 Eyelet & Fastener 14 2.3 Brackets 15 Section 3: Seismic Brace Installation 3.1 Basic Brace Layout 16 3.2 Seismic Fastener Installation 17 3.3 Seismic Bracket Installation 3.3.1 Retrofi t Bracket Installation 18 3.3.2 Bracket Stacking Installation 19 Section 4: Brace Anchor/Attachment Installation 4.1 Basic Guidelines for Concrete Structures 4.1.1 Concrete Wall 20 4.1.2 Concrete Ceiling/Roof 21 4.1.3 Concrete Over Metal Decking 22-24 4.1.4 Concrete Block Wall 25 4.2 Steel Beam 26 4.3 Bar Joists 4.3.1 Transverse or Longitudinal 27 4.3.2 4-Way 28 4.4 Steel Purlins 29 4.5 Timber Members 30 Section 5: Restraint Layout Guide 5.1 Round Ductwork 5.5 Insulated Pipe & Conduit 5.1.1 Transverse 31 5.5.1 Transverse 43 5.1.2 Longitudinal 32 5.5.2 Longitudinal 44 5.1.3 4-Way 33 5.5.3 4-Way 45 5.2 Rectangular Ductwork 5.6 Trapeze Supported Piping or Conduit 5.2.1 Transverse 34 5.6.1 Transverse 46 5.2.2 Longitudinal 35 5.6.2 Longitudinal 47 5.2.3 4 Way 36 5.6.3 4-Way 48 5.3 Flat or Oval Ductwork 5.7 Electrical Cable/Ladder/Basket Tray 5.3.1 Transverse 37 5.7.1 Transverse 49 5.3.2 Longitudinal 38 5.7.2 Longitudinal 50 5.3.3 4-Way 39 5.7.3 4-Way SIGNATURE REQ D 51 5.4 Un-Insulated Pipe & Conduit 5.4.1 Transverse 40 5.4.2 Longitudinal 41 Todd R Hawkinson Professional Engineer 5.4.3 4-Way 42 5.8 Rectangular Units of Equipment 5.8.1 4-Way 52 5.8.2 Linear 4-Way 53 DATE: XX/XX/2009 3
1.1 Introduction / Scope Restraint systems are specifi cally designed and engineered to brace and secure nonstructural equipment and components within a building or structure to minimize earthquake damage to suspended components. Restraint systems are ideal for use on nonstructural components and equipment requiring seismic design, such as in essential facilities that are required for emergency operations in the aftermath of an earthquake. Detailed in this manual are bracing guidelines for a variety of nonstructural components, equipment, and systems. Actual restraint requirements for some sites may vary from these guidelines, and these site-specifi c restraint installations are not limited to the guidelines detailed here. However, ensure that any deviations from the guidelines within this manual are pre-approved by the seismic engineer of record for the particular site. It is the responsibility of the reader and structural engineer for the project/site to ensure that the existing structure is capable of withstanding the full loads that may be induced by the braced equipment or Seismic attachments. The services of a seismic bracing engineer or a professional/structural engineer is required to determine the seismic demand forces, required bracing, spacing, and anchorage of the bracing in accordance with the applicable building code design provisions and conditions for the project. Please note that this manual does not replace code-required industry standard practices. Restraint systems, designed as per the guidelines outlined in this manual, do not guarantee adequacy of the installation, and it is the responsibility of the reader and structural engineer for the site/project to ensure the adequacy of the design and placement of the Seismic bracing kits and their installation to be in compliance with the applicable codes.. Michael J. Griffin Professional Engineer California No. 38184 DATE 6/7/10 Disclaimer: Neither Michael J. Griffi n nor Gripple are the Structural or Professional Engineers of Record. The stability and adequacy of the structural elements, nonstructural components or seismic sway braces, hangers, brackets, bolting, anchorage and any other required attachments are the responsibility of the Structural or Professional Engineer of Record, or the seismic bracing design engineer for the Facility or Project. Any additional or supplementary members required to ensure the adequacy or stability of the structures the seismic sway bracing attaches to are not within the scope of this manual/document. Gripple warrants that the Restraint systems will achieve the applicable design strengths published if installed in accordance with the guidelines contained in this manual. Gripple disclaims any and all other express or implied warranties of fi tness for any general or particular application. Anyone making use of this manual does so at their own risk, and assumes any and all liability resulting from such use. 4
1.2 Kit Contents Gripple Seismic Kit Size Length Seismic Bracket Rod/Structural Attachment Size Product Code GS12 Max Load: 860 lbs 1.5:1 SF 10ft 15ft 20ft Standard Retrofit Standard Retrofit Standard Retrofit 3/8 1/2 3/8 1/2 3/8 1/2 3/8 1/2 3/8 1/2 3/8 1/2 GS12-10E4-S4 GS12-10S5-S5 GS12-10E4-R4 GS12-10S5-R5 GS12-15E4-S4 GS12-15S5-S5 GS12-15E4-R4 GS12-15S5-R5 GS12-20E4-S4 GS12-20S5-S5 GS12-20E4-R4 GS12-20S5-R5 Range of Sizes GS12 Max Load: 860 lbs GS19 Max Load: 2,450 lbs GS25 Max Load: 4,100 lbs GS19 Max Load: 2,450 lbs 1.5:1 SF 10ft 15ft 20ft Standard Retrofit Standard Retrofit Standard Retrofit 3/8 1/2 5/8 3/8 1/2 5/8 3/8 1/2 5/8 3/8 1/2 5/8 3/8 1/2 5/8 3/8 1/2 5/8 GS19-10S4-S4 GS19-10S5-S5 GS19-10S6-S6 GS19-10S4-R4 GS19-10S5-R5 GS19-10S6-R6 GS19-15S4-S4 GS19-15S5-S5 GS19-15S6-S6 GS19-15S4-R4 GS19-15S5-R5 GS19-15S6-R6 GS19-20S4-S4 GS19-20S5-S5 GS19-20S6-S6 GS19-20S4-R4 GS19-20S5-R5 GS19-20S6-R6 Understanding Gripple Seismic Codes Cable Size GS12=1/8 GS19=3/16 GS25=1/4 End Fitting E=45º Eyelet S=Standard Single Bracket DS=Standard Double Bracket Hole Size in Loose Brackets 4=3/8 5=1/2 6=5/8 8=3/4 10=1 GS12-10E4-S4 GS25 Max Load: 4,100 lbs 1.5:1 SF 10ft 15ft 20ft Standard Retrofit Standard Retrofit Standard Retrofit 5/8 3/4 1 5/8 3/4 1 5/8 3/4 1 5/8 3/4 1 5/8 3/4 1 5/8 3/4 1 GS25-10DS6-DS6 GS25-10DS8-DS8 GS25-10DS10-DS10 GS25-10DS6-DR6 GS25-10DS8-DR8 GS25-10DS10-DR10 GS25-15DS6-DS6 GS25-15DS8-DS8 GS25-15DS10-DS10 GS25-15DS6-DR6 GS25-15DS8-DR8 GS25-15DS10-DR10 GS25-20DS6-DS6 GS25-20DS8-DS8 GS25-20DS10-DS10 GS25-20DS6-DR6 GS25-20DS8-DR8 GS25-20DS10-DR10 Cable Length 10, 15 or 20ft Hole Size in End Fitting 4=3/8 5=1/2 6=5/8 8=3/4 10=1 Style of Loose Bracket S=Standard Bracket R=Retrofit Bracket DS=Double Standard Bracket DR=Double Retrofit Bracket (Double Brackets for GS25 only) 5
1.3 Introduction / System Strengths Hanger rod with stiffener Break strength certifi ed, pre-stretched Gripple Seismic cable brace Anchorage to structure See Section 4 See Section 3 for end bracket installation Attachment to equipment See Section 5 See Section 3 for end bracket installation A = 30º - 60º F h fastener See Section 3 for installation Brace Size Cable Diameter Max System Design Strength* Max Horizontal Force (F h ) @ A = 30º Max Horizontal Force (F h ) @ A = 45º Max Horizontal Force (F h ) @ A = 60º GS12 1/8 860 lbs 745 lbs 608 lbs 430 lbs GS19 3/16 2,450 lbs 2,122 lbs 1,732 lbs 1,225 lbs GS25 1/4 4,100 lbs 3,551 lbs 2,899 lbs 2,050 lbs * Max design strength (LRFD), based on 1.5:1 Safety Factor as per ASCE 19-96 and IBC Section 2207.2 Based on the lowest average failure load from tension tests of the Gripple bracing components (cable, brackets, and fasteners). 2010 2009 6
1.4.1 Introduction / Transverse Brace Assembly 30º- 60º 30º- 60º Run direction Anchorage to structure Hanger rod with stiffener Anchorage to structure Break strength certified, pre-stretched Gripple Seismic cable brace 30º- 60º Fastener See Section 3 for Installation F h End View Transverse bracing acts to restrain the seismic forces in a plane perpendicular to the run of braced piping, conduit, ductwork or equipment, as shown above. The seismic forces that a transverse brace resists are illustrated by F h. A vertical force can be generated during a seismic event and as such, rod stiffeners may be required to help prevent the hanger rod from buckling under this upwards force. Ductile Braced Components: For piping, conduit, and equipment connections manufactured from ductile materials, the maximum allowable brace spacing for transverse bracing is typically 40ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Non-ductile Braced Components: For piping, conduit, and equipment connections manufactured from non-ductile materials, the maximum allowable brace spacing for transverse bracing is typically 20ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Refer to Section 1.5 for spacing guidelines. OVAL ENDING 2009 2010 7
1.4.2 Introduction / Longitudinal Brace Assembly 30º- 60º 30º- 60º Anchorage to structure Run direction Hanger rod with stiffener (as required by design) Anchorage to structure Break strength certified, pre-stretched Gripple Seismic cable brace 30 O -60 O fastener See Section 3 for Installation F h Side View Longitudinal bracing acts to restrain the seismic forces in a plane parallel to the run of braced piping, conduit, ductwork or equipment, as shown above. The seismic forces that a longitudinal brace resists are illustrated by F h. A vertical force can be generated during a seismic event and as such, rod stiffeners may be required to help prevent the hanger rod from buckling under this upwards force. Ductile Braced Components: For piping, conduit, and equipment connections manufactured from ductile materials, the maximum allowable brace spacing for longitudinal bracing is typically 80ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Non-ductile Braced Components: For piping, conduit, and equipment connections manufactured from non-ductile materials, the maximum allowable brace spacing for longitudinal bracing is typically 40ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Refer to Section 1.5 for spacing guidelines. 2010 2009 8
1.4.3 Introduction / 4-Way Bracing Assembly 40º - 50º Hanger rod with stiffener Run direction 30º- 60º Anchorage to structure Anchorage to structure F h Anchorage to structure Top View Anchorage to structure 4-Way bracing acts to restrain the seismic forces of the run of braced piping, conduit, ductwork or equipment, in both the transverse and longitudinal directions, as shown above. The seismic forces that a 4-Way brace resists are illustrated by F h. A vertical force can be generated during a seismic event and as such, rod stiffeners may be required to help prevent the hanger rod from buckling under this upwards force. Ductile Braced Components: For piping, conduit, and equipment connections manufactured from ductile materials, the maximum allowable brace spacing for 4-Way bracing is typically limited to 80ft, so long as transverse bracing is used in addition, every 40ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Non-ductile Braced Components: For piping, conduit, and equipment connections manufactured from non-ductile materials, the maximum allowable brace spacing for 4-Way bracing is typically limited to 40ft, so long as transverse bracing is used in addition, every 20ft; this brace spacing is dependent on pipe size, seismic forces, and brace components selected. Refer to Section 1.5 for spacing guidelines. O AL ENDING 2009 2010 9
1.5 Introduction / Brace Spacing Guidelines Bracing must be installed on the vertical support system comprised of threaded rod (all-thread rod) hanger suspensions, or directly to a suspended individual equipment component. Seismic bracing shall be designed in accordance with: - the applicable building code or local city/county code requirements for seismic design. - the engineering drawings and specifi cations of the specifi c project requirements. Component hanger spacing will typically be less than the required seismic spacing. Typical maximum allowable brace spacing limits The maximum allowable brace spacing for piping/conduit/ductwork constructed of ductile materials (e.g. steel, copper, aluminum) are typically: - 40ft for transverse bracing (piping larger than 2½ dia, general conduit and ductwork) - 80ft for longitudinal bracing (piping larger than 2½, general conduit and ductwork) - 30ft for transverse bracing (piping smaller than 2½ dia) - 60ft for longitudinal bracing (piping smaller than 2½ dia) The maximum allowable brace spacing limits for piping/conduit/ductwork constructed of non-ductile materials (e.g. cast iron, plastic) are: - 20ft for transverse bracing - 40ft for longitudinal bracing The brace spacing could be considerably less than this for a specifi c run, depending on the seismic demand loads, the size and load capacity of the cable brace system used, and the strength of the structural members/components and structural anchors which resist the resulting seismic brace forces. Reduced spacing may also be required to prevent: - collisions between the piping/conduit/ductwork/equipment and other non-structural components. - rupture/shearing/slippage of fl exible joints between piping/conduit/ductwork and fl oor/ceiling mounted equipment. Brace size and spacing should not vary considerably during a run to ensure uniform defl ection of the piping/conduit/ductwork along the run, and uniform loading of the individual braces during a seismic event. 1. Transverse Maximum longitudinal spacing 4-Way Maximum transverse spacing Less than 24 Transverse bracing can be used as longitudinal bracing for an adjacent run (at 90º changes of direction) where the brace is located less than 24 from the change in direction. Longitudinal/Transverse sway bracing shall also be required within 24 of every fl exible coupling due to differential movement of the pipe or conduit. Maximum transverse spacing 2010 2009 10
1.5 Introduction / Brace Spacing Guidelines (continued) 2. Transverse Maximum transverse spacing 4-Way Piping/conduit/duct run may be considered a continuous run if the horizontal offset is less than 24. Otherwise, if the offset is greater than 24, each straight segment shall be treated as an independent run and appropriately braced. Offset less than 24 3. Transverse Maximum transverse spacing Less than 24 4-Way 1. The minimum bracing required for runs longer than 5ft is a transverse brace at each end, and a longitudinal brace at one of these two positions. This bracing could be sourced using points 1 and 2 above. Less than 24 2. More than 5ft but less than transverse spacing Maximum transverse spacing P OVAL N I G 2009 2010 11
1.5 Introduction / Brace Spacing Guidelines (continued) 4. Max transverse spacing Less than 24 max Transverse 4-Way 4-Way braces required if vertical run exceeds 3ft Vertical runs must have both transverse and longitudinal bracing, or a 4-Way brace at each end of the vertical run. These bracing points must be located within 24 of the end of the vertical run, away from the change in direction. 4-way braces shall be provided at the top of all pipe risers exceeding 3ft in length. Less than 24 max Max transverse spacing 5. Maximum transverse spacing Maximum transverse spacing 4-Way braced equipment Transverse Less than 24 4-Way Each unit of equipment connected to a run of piping/conduit/ductwork should be individually and independently braced. If rigidly connected to the piping/conduit/ductwork, then the equipment bracing shall also be designed for the tributary piping/ conduit/ductwork seismic forces. If the piping/conduit/ductwork is not rigidly connected, i.e. fl ex joints, then the equipment bracing cannot be used to brace the adjacent piping/conduit/ductwork and shall be independently braced. Suspended rectangular units of equipment shall be provided with a minimum of one sway brace at each corner (4 total braces). See Section 5 for details. 2010 2009 12
2.1 Seismic Bracing Kit and Components Overview / Kit Contents 1 3 4 2 5 1. Cable Break strength certifi ed, pre-stretched cable. Available in lengths of 10ft, 15ft and 20ft. 2. Color Coded Tags Pre-assembled color coded tags for easy fi eld verifi cation of cable diameter. 3. End Fitting E-45º Eyelet S-Standard Single Bracket* DS-Standard Double Bracket* Eyelet Standard Bracket Double Bracket 4. Fastener GS12 - Max Load 860 lbs GS19 - Max Load 2,450 lbs GS25 - Max Load 4,100 lbs Green Yellow Purple 5. Loose bracket Standard Bracket or Retrofi t Bracket as Single or Double Brackets. Standard Bracket Retrofit Bracket * Zinc plated copper ferrules 2009 2010 13
2.2 Seismic Bracing Kit and Components Overview / Eyelet & Fastener Gripple Eyelet C E 45º A D B Eyelet Size GSE4 A 1 Dimensions B C ø 19/32 53/64 D ø 7/16 E 1/8 Fastener B C A Brace Size A Dimensions B C Cable Construction Lowest System Component Break Strengths Max System Design Strength (Safety factor 1.5:1) GS12 (1/8 cable) 1 9/64 3 1/4 35/64 7 x 7 1,278 lbs 860 lbs GS19 (3/16 cable) 1 11/32 3 3/4 9/16 7 x 19 3,669 lbs 2,450 lbs GS25 (1/4 cable) 1 23/32 4 21/32 11/16 7 x 19 6,085 lbs 4,100 lbs 2010 2009 14
2.3 Seismic Bracing Kit and Components Overview / Brackets Standard Bracket E 45º A Code will alter according to size D B C Standard Bracket Size GSS4 GSS5 GSS6 GSS8 GSS10 A 25/32 13/16 13/16 1 11/16 B 19/16 1 9/16 19/16 1 31/32 1 31/32 Dimensions C ø 19/16 1 21/32 1 21/32 1 31/32 1 31/32 D ø 1/2 19/32 11/16 13/16 1 5/64 E 5/32 5/32 5/32 5/32 5/32 Retrofit Bracket 45º G D A B Code will alter according to size E Retrofit Bracket Size GSR4 GSR5 GSR6 GSR8 GSR10 A 345/64 33/4 33/4 4 9/64 97/16 B 29/16 45/8 45/8 31/16 35/16 C 131/32 131/32 131/32 21/4 27/16 C Dimensions D 1/2 19/32 3/4 53/64 11/16 F E 11/16 15/16 15/16 1 13/32 117/32 F 47/64 45/64 45/64 55/64 29/32 G 1/4 1/4 1/4 1/4 1/4 2009 2010 15
3.1 Seismic Brace Installation / Basic Brace Layout Attachment to structure Gripple cable end fi tting (GSE or GSS bracket) Break strength certifi ed, pre-stretched Gripple Seismic Cable Fastener (GS12, GS19, GS25) Color tag Hanger rod with stiffener 30º - 60º Attachment to equipment/strut Gripple GSS or GSR Bracket Strut 2010 2009 16
3.2 Seismic Brace Installation / Seismic Fastener Installation 1. 2. 1. Thread the tail end of the cable through the first channel of the Fastener. 2. Thread the cable through the hole of the Bracket 3. 4. X 3. Thread the cable back through the second channel of the Gripple Fastener. A 2 tail is recommended for any future adjustments. Hand-tighten cable to remove all slack. For isolated equipment, leave 1/8 visible sag in the cable. 4. Hand-tighten the locking bolts until tight. Installation of the Brace is complete. 2009 2010 17
3.3.1 Seismic Brace Installation / Retrofi t Bracket Installation Retrofit Bracket Installation 1. 2. 3. 1. Loosen nut and washer. 2. Attach Retrofi t Bracket in direction of brace. 3. Tighten down nut on top of the Retrofi t Bracket. Double stacking for GS25 Kit Note: When using GS25 the attachment to the braced equipment must use double stacked Retrofi t Brackets. Hanger rod with stiffener GS25 to structure attachment X To GS25 brace 2010 2009 18
3.3.2 Seismic Bracing Installation / Bracket Stacking Installation Typical bracket installation for Transverse bracing Hanger rod with stiffener Note: When using GS25 brackets, they must be double stacked (see Section 3.3.1) To brace Strut Typical stacking for Longitudinal bracing Hanger rod with stiffener To brace Strut To brace Typical stacking for 4-Way bracing To brace Hanger rod with stiffener 40º - 50º 40º - 50º Strut To brace 2009 2010 19
4.1.1 Brace Anchor/Attachment Installation / Concrete Wall 1. Anchor design shall be in accordance with the applicable building code seismic design provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a concrete wall, that the anchor embedment does not exceed the minimum required wall width as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1.). 6. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 1. Concrete wall Expansion anchor as per the design of the seismic bracing system 2. Warning: Locate steel reinforcement/ rebar before drilling. Follow bolt manufacturer s installation guidelines. 3. Break strength certifi ed, pre-stretched cable 4. 1. Standard Bracket End Fitting Double stacked (GS25 system) 2. Standard Bracket End Fitting (GS12 and GS19 systems) 3. Eyelet End Fitting (GS12 system) 4. Cable looped through a loose Standard Bracket, secured with a Fastener Either factory swaged end fi tting or loop through a Gripple Bracket with Fastener (30º - 60º) 2010 2009 20
4.1.2 Brace Anchor/Attachment Installation / Concrete Ceiling/Roof 1. Anchor design shall be in accordance with the applicable building code seismic provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a concrete surface, that the anchor embedment does not exceed the minimum required depth as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1). 6. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Expansion anchor as per design of the seismic bracing system Concrete slab or roof 1. 2. 3. 4. (30º- 60º) Break strength certifi ed, pre-stretched cable Either factory swaged end fi tting or loop through a Gripple Bracket with Fastener 1. Eyelet End Fitting (GS12 system) 2. Standard Bracket End Fitting (GS12 and GS19 systems) 3. Standard Bracket End Fitting Double stacked (GS25 system) 4. Cable looped through a loose Standard Bracket, secured with a Gripple Seismic Fastener Warning: Locate steel reinforcement/ rebar before drilling. Follow bolt manufacturers installation guidelines. 2009 2010 21
4.1.3 Brace Anchor / Attachment Installation / Concrete over Metal Decking 1. Anchor design shall be in accordance with the applicable building code seismic design provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a concrete surface, that the anchor embedment does not exceed the minimum required depth as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1). 6. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Expansion anchor as per design and orientation at metal decking per manufacturer s instructions Concrete over metal deck 1. 1. Either Gripple Eyelet or Standard Bracket Either factory swaged end fi tting or loop through a Gripple Bracket with Fastener (30º - 60º) Break strength certifi ed, pre-stretched cable 1. Standard Bracket end fi tting (GS12 and GS19 systems) Warning: Locate steel reinforcement/ rebar before drilling. Follow bolt manufacturer s installation guidelines. 2010 2009 22
4.1.3 Brace Anchor / Attachment Installation / Concrete over Metal Decking 1. Anchor design shall be in accordance with the applicable building code seismic design provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a concrete surface, that the anchor embedment does not exceed the minimum required depth as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1). 6. Building structure at anchor locations must be point load capable. Verify loading with registered professional engineer for the site/project. Strut, strut anchors, and bracket anchor to strut per design Concrete slab on metal deck. 1. Either swaged end fi tting or loop through a Gripple Bracket with Fastener 1. Note: Position of strut in line with deck ribs. Either Gripple Eyelet, Standard or Double Bracket (30º - 60º) Angle may not vary from parallel to deck ribs no more than ±5 o Break strength certifi ed, pre-stretched cable 1. Standard Bracket End Fitting (GS12 and GS19 systems) Warning: Locate steel reinforcement/ rebar before drilling. Follow bolt manufacturer s installation guidelines. 2009 2010 23
4.1.3 Brace Anchor / Attachment Installation / Concrete over Metal Decking 1. Anchor design shall be in accordance with the applicable building code seismic design provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a concrete surface, that the anchor embedment does not exceed the minimum required depth as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1). 6. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Strut, strut anchors, and bracket anchor to strut per design Concrete slab over metal deck Either Gripple Eyelet, Standard or Double Bracket 1. Either a factory swaged end fi tting or loop through a Gripple Bracket withfastener Break strength certifi ed, pre-stretched cable 1. Note: position of strut perpendicular with deck ribs. Break strength certifi ed, pre-stretched Gripple Seismic cable (30º - 60º) Angle may not vary more than ±5 o from perpendicular to deck ribs 1. Standard Bracket end fi tting (GS12 and GS19 systems) Warning: Locate steel reinforcement/ rebar before drilling. Follow bolt manufacturer s installation guidelines. 2010 2009 24
4.1.4 Brace Anchor / Attachment Installation / Concrete Block Wall 1. Anchor design shall be in accordance with the applicable building code seismic design provisions. Typically this will include compliance with ACI318, Appendix D. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. Use caution when drilling or anchoring into a wall, that the anchor embedment does not exceed the minimum required wall width as established by the anchor manufacturer. 5. When using GS25, two double standard brackets must be used (see Section 3.3.1). 6. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Grouted concrete wall block Hollow concrete block wall Anchor per design of the seismic bracing system and specifi c anchor manufacturer instructions Gripple Eyelet, Standard or Double Bracket end fi ttings Break strength certifi ed, pre-stretched Gripple Seismic cable Either factory swaged end fi tting or loop through a Gripple Bracket wtih Fastener (30º - 60º) 2009 2010 25
4.2 Brace Anchor / Attachment Installation / Steel Beam 1. Anchor design shall be in accordance with the applicable building code seismic design provisions and hardware manufacturer s approved design data. 2. Refer to applicable International Code Council evaluation service reports (ICC-ES) for each specifi c anchor and attaching hardware. 3. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 4. When using GS25, two double standard brackets must be used (see Section 3.3.1). 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Metal deck Steel beam Strut and beam clamps as required by design Either a factory swaged end fi tting or a loop through a Gripple Bracket with Fastener Either Gripple Eyelet or Standard Bracket (30º - 60º) Break strength certifi ed, pre-stretched cable Angle may not vary from parallel to the strut no more than ±5 o Beam End View Beam Side View 2010 2009 26
4.3.1 Brace Anchor / Attachment Installation / Bar Joist - Transverse or Longitudinal 1. Details below indicate how braces may be attached to a bar joist structure. 2. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 3. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 4. The Gripple seismic cable shall only be attached to the top chord of the bar joist member. Loop must be formed around top of bar joist in between web members as shown, then secured with Gripple Seismic Fastener Note: For the bracing arrangements detailed here, two seismic fasteners may be required (one at each end of the cable brace supplied without factory swaged on brackets). Joist web member 12 mininum Fastener (30º-60º) Leave a minimum 2 tail when installing Gripple Fastener Break strength certified, pre-stretched Gripple Seismic cable Looped around bar joist, secured with Fastener, as detailed above Hanger location Connection to equipment Looped around bar joist, secured with Fastener, as detailed above Hanger location Hanger location Connection to equipment Connection to equipment 2009 2010 27
4.3.2 Brace Anchor / Attachment Installation / Bar Joist - 4-Way Bracing 1. Details below indicate how braces may be attached to a bar joist structure for a 4-Way brace system. 2. All non-gripple parts, rod hangers, seismic support and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 3. Building structure at anchor locations must be point load capable. Verify loading with structural for the site/project. 4. The Gripple seismic cable shall only be attached to the top chord of the bar joist member. Note: For the bracing arrangements detailed here, two seismic fasteners may be required (one at each end of the cable brace supplied without a factory swaged on bracket). Looped around bar joist, secured with Fastener, as detailed in Section 4.3.1 Hanger location Connection to equipment Break strength certified pre-stretched Gripple Seismic cable. Cable angles shall be per Section 1.4.3 Looped around bar joist, secured with Fastener, as detailed in Section 4.3.1 Hanger location Hanger location Connection to equipment Break strength certified pre-stretched Gripple Seismic cable. Cable angles shall be per Section 1.4.3 2010 2009 28
4.4 Brace Anchor / Attachment Installation / Steel Purlins 1. Details below indicate how braces may be attached to steel purlins in a building structure. 2. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed professional engineer responsible for the design. 3. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Purlin Warning: Obtain approval from site structural engineer before attaching or drilling into purlins. Added reinforcement may be required. * Eyelet end fitting shown. Alternatively a Standard Bracket could be used. * (30º-60º) * (30º-60º) Break strength certifi ed pre-stretched cable Transverse or Longitudinal Hanger location Hanger location Hanger location 4-Way bracing Hanger location Hanger location Hanger location Steel purlin or beam Either run direction s shall be per Section 1.4.3 2009 2010 29
4.5 Brace Anchor / Attachment Installation / Timber Members 1. Details below indicate how braces may be attached to timber structural members. 2. All non-gripple parts, rod hangers, support products and connectors shall be approved for seismic applications where required, and shall be designed by a licensed or registered professional engineer responsible for the site/project. 3. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. Warning: Obtain approval from site structural engineer before attaching or drilling into beams. * Break strength certifi ed, pre-stretched cable * Eyelet end fitting shown. Alternatively a Standard Bracket could be used. (30º-60º) 9x bolt dia minimum Design of bolt must be in upper half of beam 3 min * (30º-60º) 9x lag screw dia minimum Lag screw 3 min * Gripple Eyelet or Gripple Standard Bracket Lag Screw as required by design * (30º-60º) 2010 2009 30
5.1.1 Round Ductwork / Transverse 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Anchorage to structure Hanger rod with stiffener Break strength certified, pre-stretched cable (30º- 60º) Fastener See detail Round ductwork Section View Duct clamp hanger Detail either/or Round ductwork Duct clamp hanger Max deviation ±5 o Looped through a Gripple Seismic Standard or Retrofit Bracket Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) Top View 2009 2010 31
5.1.2 Round Ductwork / Longitudinal 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Max deviation ±5º Hanger rod with stiffener Max deviation ±5º Break strength certified, pre-stretched Gripple Seismic cable Duct clamp hanger ; Duct shall be tightly clamped Round ductwork Looped through a Standard or Retrofit Bracket Round ductwork Section View Fastener Hanger rod with stiffener Duct clamp hanger Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) Top View (30º- 60º) Round ductwork Detail See detail Standard or Retrofit Bracket Side View Duct clamp hanger either/or 2010 2009 32
5.1.3 Round Ductwork / 4-Way 1. Install cable assemblies with 4-Way brace angles in accordance with section 1.4.3. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading wtih structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Anchorage to structure Hanger rod with stiffener by design Break strength certified, prestretched Gripple Seismic cable (30º- 60º) Fastener Round ductwork Section View Duct clamp hanger ; Duct shall be tightly clamped See detail (30º- 60º) Side View Looped through a Gripple Seismic Standard Bracket Standard or Retrofit Bracket (in bolt hole as per threaded rod dia) Detail (30º- 60º) Top View either/or 2009 2010 33
5.2.1 Rectangular Ductwork / Transverse 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Hanger rod with stiffener Anchorage to structure Rectangular ductwork Break strength certified, pre-stretched Gripple Seismic cable (30º- 60º) Fastener See detail Attach duct to strut as required by design Section View Strut Detail Rectangular ductwork Standard or Retrofit Bracket with bolt hole as per threaded rod dia) either/or Max deviation ±5 O Looped through a Gripple Seismic Standard or Retrofit Bracket Top View 2010 2009 34
5.2.2 Rectangular Ductwork / Longitudinal 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Max deviation ±5º Hanger rod with stiffener Rectangular ductwork Max deviation ±5º Break strength certified, pre-stretched cable Fastener Rectangular ductwork Looped through a Standard or Retrofit Bracket Attach duct to strut as required by design Section View Strut Hanger rod with rod stiffener Rectangular ductwork Strut (by others) Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) Top View (30º- 60º) Standard or Retrofit Bracket Duct strut hanger support Detail See detail Side View either/or 2009 2010 35
5.2.3 Rectangular Ductwork / 4-Way 1. Install cable assemblies with 4-Way brace angles in accordance with Section 1.4.3. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Anchorage to structure Rectangular ductwork Hanger rod with stiffener Break strength certified, pre-stretched Gripple Seismic cable (30º- 60º) Strut Fastener Attach duct to strut support as required by design Section View See detail Rectangular ductwork Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) (30º- 60º) Side View Looped through a Gripple Seismic Standard or Retrofit bracket Detail (40º - 50º) Top View either/or 2010 2009 36
5.3.1 Flat or Oval Ductwork / Transverse 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. 9. Use shortest possible screws when penetrating the ductwork to minimize airfl ow noise inside the duct. Break strength certified, pre-stretched Gripple Seismic cable Flat oval ductwork Attach duct to strut support (see note 9) Hanger rod with stiffener Fastener Anchorage to structure (30º- 60º) Strut support Section View See detail Looped through a Gripple Seismic Standard or Retrofit Bracket Flat oval ductwork Note: Alternative location for bracing Detail Max deviation ±5º Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) Strut Fastener either/or Top View 2009 2010 37
5.3.2 Flat or Oval Ductwork / Longitudinal 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. 9. Use shortest possible screws when penetrating the ductwork to minimize airfl ow noise inside the duct. Break strength certified, prestretched Gripple Seismic cable Attach duct to strut support (see note 9) Hanger rod with stiffener (as required by design) Max deviation ±5º Break strength certified, pre-stretched Gripple Seismic cable Flat oval ductwork Strut Fastener Flat oval ductwork Section View Hanger rod with stiffener (as required by design) Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) Looped through a Standard or Retrofit Bracket (30º- 60º) Top View Strut support See detail Side View Detail either/or Note: Alternative location for bracing 2010 2009 38
5.3.3 Flat or Oval Ductwork / 4-Way 1. Install cable assemblies with 4-Way brace angles in accordance with Section 1.4.3. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. 9. Use shortest possible screws when penetrating the ductwork to minimize airfl ow noise inside the duct. Hanger rod with stiffener Detail Anchorage to structure Attach to strut support (see note 9) (30º- 60º) Flat Oval Ductwork Break strength certified, pre-stretched Gripple Seismic cable either/or Fastener Strut/trapeze Section View See detail Looped through a Gripple Seismic Standard or Retrofit Bracket Flat oval ductwork Standard or Retrofit Bracket (with bolt hole as per threaded rod dia) (40º - 50º) Top View Note: Alternative location for bracing 2009 2010 39
5.4.1 Un-Insulated Pipe & Conduit / Transverse 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Note: Install clevis hanger/pipe clamp and torque bolts as per manufacturers installation guidelines. Break strength certified, pre-stretched cable Hanger rod or stiffener Anchorage to structure (30º- 60º) Fastener Un-insulated pipe or conduit Pipe clevis hanger may require longer bolt to fit retrofit brackets Detail Section Max deviation ±5º Hanger rod or stiffener Fastener Pipe clevis hanger Fastener Un-insulated pipe or conduit Top View Side View 2010 2009 40
5.4.2 Un-Insulated Pipe & Conduit / Longitudinal 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Note: Install clevis hanger/pipe clamp and torque bolts as per manufacturers installation guidelines. Anchorage to structure Hanger rod or stiffener Break strength certified, pre-stretched Gripple Seismic cable Max deviation ±5º (30º-60º) 6 max. Un-insulated pipe or conduit Pipe clamp Clevis hanger Side View Un-insulated pipe or conduit Clevis hanger Loop cable around clamp bolt, secure with a Fastener Pipe clamp 6 max. Un-insulated pipe or conduit Section View Top View 2009 2010 41
5.4.3 Un-Insulated Pipe & Conduit / 4-Way 1. Install cable assemblies with 4-Way brace angles in accordance with Section 1.4.3. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Note: Install clevis hanger/pipe clamp and torque bolts as per manufacturers installation guidelines. Break strength certified, pre-stretched cable Looped through a Gripple Seismic Standard bracket (30º- 60º) Fastener Un-insulated pipe or conduit Un-insulated pipe or conduit Section View Standard Bracket (with bolt hole as per threaded rod dia) Hanger rod with stiffener 6 Max. (40º- 50º) Top View (30º- 60º) Clevis hanger Un-insulated pipe or conduit Pipe clamp Side View 2010 2009 42
5.5.1 Insulated Pipe & Conduit / Transverse 1. Install cable assemblies with a 60º maximum angle from the horizontal plane. 2. Anchor cable assemblies to structure per Section 4, and as required by design. 3. Tighten cables to remove slack (see Section 3.2). 4. Hanger rod and rod stiffeners shall be by design. 5. Building structure at anchor locations must be point load capable. Verify loading with structural engineer for the site/project. 6. For GS25 two brackets must be used at end fi ttings to cable (see Section 3.3.1). 7. Leave a 2 tag extending out of the Fastener for future adjustments. 8. Ensure locking screws are fully installed into the Fastener on completion of installation. Note: Install clevis hanger/pipe clamp and torque bolts as per manufacturers installation guidelines. Hanger rod with stiffener (as required by (design) Gripple Seismic Fastener Anchorage to structure (30º- 60º) Looped through a Standard or Retrofit Bracket Clevis Bolt may need to be longer to fit Brackets Standard or Retrofit Bracket (with hole as per rod dia) Pipe Section View Clevis hanger Insulation Max deviation ±5 o Bracket Looped through a Bracket Bracket Insulation Top View Clevis hanger Side View Pipe 2009 2010 43