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Seismic Restraint Manual: Guidelines for Mechanical Systems, 3rd Edition, 2008
- FOREWORD
- SEISMIC RESTRAINT TASK FORCE
- NOTICE TO USERS OF THIS PUBLICATION
- TABLE OF CONTENTS
- CHAPTER 1 INTRODUCTION [Go to Page]
- 1.1 OVERVIEW
- 1.2 WHAT ARE SEISMIC LOADS?
- 1.3 WHAT HAPPENS DURING AN EARTHQUAKE?
- 1.4 HOW TO RESIST SEISMIC LOADS
- 1.5 KINDS OF BRACING
- 1.6 WHY DIFFERING REQUIREMENTS?
- CHAPTER 2 INSTRUCTIONS FOR USING THE GUIDELINES [Go to Page]
- 2.1 THE SEISMIC HAZARD LEVEL (SHL)
- 2.2 HOW TO READ THE SIZING TABLES
- 2.3 USING THE SIZING TABLES
- 2.4 EXAMPLE: DUCT BRACING
- CHAPTER 3 GENERAL REQUIREMENTS [Go to Page]
- 3.1 GENERAL REQUIREMENTS
- 3.2 MATERIAL SPECIFICATIONS
- 3.3 GENERAL REQUIREMENTS FOR BRACING OF DUCTS
- 3.4 GENERAL REQUIREMENTS FOR BRACING OF PIPES
- 3.5 ITEMS TO BE PROVIDED BY THE DESIGN PROFESSIONALS
- 3.6 NOTES ON ATTACHMENT TO THE BUILDING STRUCTURE
- Table 3-1 Standard Sheet Metal Gages
- Table 3-2 Minimum Allowable Cable Strength
- Table 3-3 Minimum Allowable Design Values for Expansion Anchors
- CHAPTER 4 DETAIL DRAWINGS OF BRACING [Go to Page]
- 4.1 INSTRUCTIONS FOR BRACING INDIVIDUALLY SUPPORTED PIPE
- EXAMPLE 1. AT PIPE DROP TO MECHANICAL EQUIPMENT
- FIGURE 4-1 TYPICAL LOCATIONS OF BRACING
- FIGURE 4-2 SIDE BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-3 SIDE BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-4 CABLE SIDE BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-5 SIDE BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-6 CENTER BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-7 CABLE CENTER BRACING FOR RECTANGULAR DUCTS
- FIGURE 4-8 FLOOR SUPPORTED DUCT
- FIGURE 4-9 SINGLE HANGER BRACING FOR ROUND DUCTS 33-36 INCHES (838-900 MM)
- FIGURE 4-10 SINGLE HANGER CABLE BRACING FOR ROUND DUCTS 33-36 INCHES (838-900 MM)
- FIGURE 4-11 DOUBLE HANGER BRACING FOR ROUND DUCTS UP TO 84 INCHES (2100 MM)
- FIGURE 4-12 DOUBLE HANGER BRACING FOR ROUND DUCTS UP TO 84 INCHES (2100 MM)
- FIGURE 4-13 TRANSVERSE BRACING FOR PIPES
- FIGURE 4-14 STRUT BRACING FOR PIPES
- FIGURE 4-15 ALTERNATE ATTACHMENT TO HANGER FOR PIPE BRACING
- FIGURE 4-16 LONGITUDINAL BRACING FOR PIPES
- FIGURE 4-17 ALTERNATE BRACING FOR PIPES
- FIGURE 4-18 CABLE BRACING FOR PIPES
- FIGURE 4-19 LONGITUDINAL CABLE BRACING FOR PIPES
- FIGURE 4-20 STRUT BRACING FOR PIPE TRAPEZE
- FIGURE 4-21 CABLE BRACING FOR PIPE TRAPEZE
- FIGURE 4-22 FLOOR SUPPORTED PIPES
- CHAPTER 5 TABLES FOR SEISMIC HAZARD LEVEL A [Go to Page]
- 5.1 USE OF TABLES
- Table 5-1 Side Bracing For Rectangular Ducts, SHL A, L=2 ft 8 in. (Max.)
- Table 5-1M Side Bracing For Rectangular Ducts, SHL A, L=.81 m (Max.)
- Table 5-2 Side Bracing for Rectangular Ducts with Rod Hangers, SHL A
- Table 5-2M Side Bracing for Rectangular Ducts with Rod Hangers, SHL A
- Table 5-3 Center Bracing For Rectangular Ducts, SHL A, L=7 ft
- Table 5-3M Center Bracing For Rectangular Ducts, SHL A, L=2.1 m
- Table 5-4 Center Bracing For Rectangular Ducts, SHL A, L=10 ft
- Table 5-4M Center Bracing For Rectangular Ducts, SHL A, L=3.0 m
- Table 5-5 Floor Supported Ducts, SHL A
- Table 5-5M Floor Supported Ducts, SHL A
- Table 5-6 Bracing For Round Ducts, SHL A
- Table 5-6M Bracing For Round Ducts, SHL A
- Table 5-7 Schedule for Bracing Pipes and Conduit, SHL A
- Table 5-7M Schedule for Bracing Pipes and Conduit, SHL A
- Table 5-8 Schedule for Bracing Pipes on Trapeze, SHL A
- Table 5-8M Schedule for Bracing Pipes on Trapeze, SHL A
- Table 5-9 Floor Supported Pipes, SHL A
- Table 5-9M Floor Supported Pipes, SHL A
- CHAPTER 6 TABLES FOR SEISMIC HAZARD LEVEL B [Go to Page]
- 6.1 USE OF TABLES
- Table 6-1 Side Bracing For Rectangular Ducts, SHL B, L=2 ft 8 in. (Max.)
- Table 6-1M Side Bracing For Rectangular Ducts, SHL B, L=0.81m (Max.)
- Table 6-2 Side Bracing for Rectangular Ducts with Rod Hangers, SHL B
- Table 6-2M Side Bracing for Rectangular Ducts with Rod Hangers, SHL B
- Table 6-3 Center Bracing For Rectangular Ducts, SHL B, L=7 ft
- Table 6-3M Center Bracing For Rectangular Ducts, SHL B, L=2.1 m
- Table 6-4 Center Bracing For Rectangular Ducts, SHL B, L=10 ft
- Table 6-4M Center Bracing For Rectangular Ducts, SHL B, L=3.0 m
- Table 6-5 Floor Supported Ducts, SHL B
- Table 6-5M Floor Supported Ducts, SHL B
- Table 6-6 Bracing For Round Ducts, SHL B
- Table 6-6M Bracing For Round Ducts, SHL B
- Table 6-7 Schedule for Bracing Pipes and Conduit, SHL B
- Table 6-7M Schedule for Bracing Pipes and Conduit, SHL B
- Table 6-8 Schedule for Bracing Pipes on Trapeze, SHL B
- Table 6-8M Schedule for Bracing Pipes on Trapeze, SHL B
- Table 6-9 Floor Supported Pipes, SHL B
- Table 6-9M Floor Supported Pipes, SHL B
- CHAPTER 7 TABLES FOR SEISMIC HAZARD LEVEL C [Go to Page]
- 7.1 USE OF TABLES
- Table 7-1 Side Bracing For Rectangular Ducts, SHL C, L=2 ft 8 in. (Max.)
- Table 7-1M Side Bracing For Rectangular Ducts, SHL C, L=0.81m (Max.)
- Table 7-2 Side Bracing for Rectangular Ducts with Rod Hangers, SHL C
- Table 7-2M Side Bracing for Rectangular Ducts with Rod Hangers, SHL C
- Table 7-3 Center Bracing For Rectangular Ducts, SHL C, L=7 ft
- Table 7-3M Center Bracing For Rectangular Ducts, SHL C, L=2.1 m
- Table 7-4 Center Bracing For Rectangular Ducts, SHL C, L=10 ft
- Table 7-4M Center Bracing For Rectangular Ducts, SHL C, L=3.0 m
- Table 7-5 Floor Supported Ducts, SHL C
- Table 7-5M Floor Supported Ducts, SHL C
- Table 7-6 Bracing For Round Ducts, SHL C
- Table 7-6M Bracing For Round Ducts, SHL C
- Table 7-7 Schedule for Bracing Pipes and Conduit, SHL C
- Table 7-7M Schedule for Bracing Pipes and Conduit, SHL C
- Table 7-8 Schedule for Bracing Pipes on Trapeze, SHL C
- Table 7-8M Schedule for Bracing Pipes on Trapeze, SHL C
- Table 7-9 Floor Supported Pipes, SHL C
- Table 7-9M Floor Supported Pipes, SHL C
- CHAPTER 8 TABLES FOR SEISMIC HAZARD LEVEL D [Go to Page]
- 8.1 USE OF TABLES
- Table 8-1 Side Bracing For Rectangular Ducts, SHL D, L=2 ft 8 in. (Max.)
- Table 8-1M Side Bracing For Rectangular Ducts, SHL D, L=0.81m (Max.)
- Table 8-2 Side Bracing for Rectangular Ducts with Rod Hangers, SHL D
- Table 8-2M Side Bracing for Rectangular Ducts with Rod Hangers, SHL D
- Table 8-3 Center Bracing For Rectangular Ducts, SHL D, L=7 ft
- Table 8-3M Center Bracing For Rectangular Ducts, SHL D, L=2.1 m
- Table 8-4 Center Bracing For Rectangular Ducts, SHL D, L=10 ft
- Table 8-4M Center Bracing For Rectangular Ducts, SHL D, L=3.0 m
- Table 8-5 Floor Supported Ducts, SHL D
- Table 8-5M Floor Supported Ducts, SHL D
- Table 8-6 Bracing For Round Ducts, SHL D
- Table 8-6M Bracing For Round Ducts, SHL D
- Table 8-7 Schedule for Bracing Pipes and Conduit, SHL D
- Table 8-7M Schedule for Bracing Pipes and Conduit, SHL D
- Table 8-8 Schedule for Bracing Pipes on Trapeze, SHL D
- Table 8-8M Schedule for Bracing Pipes on Trapeze, SHL D
- Table 8-9 Floor Supported Pipes, SHL D
- Table 8-9M Floor Supported Pipes, SHL D
- CHAPTER 9 DETAILS OF CONNECTIONS TO STRUCTURAL MEMBERS [Go to Page]
- 9.1 INTRODUCTION
- Table 9-1 Schedule for Typical Connections to Structural Supporting Members1
- Table 9-1M Schedule for Typical Connections to Structural Supporting Members1
- FIGURE 9-1 CONNECTIONS TO CONCRETE
- FIGURE 9-1B CONNECTIONS TO CONCRETE
- FIGURE 9-2 ADJUSTABLE CONNECTIONS TO CONCRETE
- FIGURE 9-3 ALTERNATE HINGED CONNECTIONS TO CONCRETE
- FIGURE 9-4 ALTERNATE CONNECTIONS TO CONCRETE
- FIGURE 9-5 ALTERNATE CONNECTIONS TO CONCRETE
- FIGURE 9-6 CONNECTIONS TO CONCRETE FILL ON STEEL DECK
- FIGURE 9-7 CONNECTIONS TO CONCRETE
- FIGURE 9-8 CONNECTIONS TO STEEL
- FIGURE 9-9 CONNECTIONS TO OPEN WEB STEEL JOISTS
- FIGURE 9-10 ALTERNATE CONNECTION TO OPEN WEB STEEL JOISTS
- FIGURE 9-11 CONNECTIONS TO STEEL
- FIGURE 9-12 CONNECTIONS TO STEEL
- FIGURE 9-13 DUCTS HUNG BELOW STEEL BEAMS
- FIGURE 9-14 ACCEPTABLE DETAILS-WIRE CONNECTIONS TO STRUCTURE
- FIGURE 9-15 HANGER CONNECTION TO WOOD
- FIGURE 9-16 CONNECTIONS TO WOOD I-JOIST
- FIGURE 9-17 CONNECTIONS TO WOOD
- CHAPTER 10 MISCELLANEOUS CONNECTIONS [Go to Page]
- 10.1 INTRODUCTION
- FIGURE 10-1 CABLE CONNECTION TO DUCT FRAME
- FIGURE 10-2 ALTERNATE CABLE CONNECTION TO DUCT FRAME
- FIGURE 10-3 LONGITUDINAL CABLE CONNECTION TO DUCT HANGER
- FIGURE 10-4 ALTERNATE LONGITUDINAL CABLE BRACING CONNECTION TO DUCT HANGER
- FIGURE 10-5 CABLE END CONNECTION
- FIGURE 10-6 PIPE STRUT CONNECTIONS
- FIGURE 10-7 CONNECTIONS FOR FRAMING CHANNEL
- FIGURE 10-8 HANGER ROD CONNECTIONS
- FIGURE 10-9 HUBLESS CAST IRON PIPE
- FIGURE 10-10 RISER BRACING FOR HUBLESS PIPES
- FIGURE 10-11 FRAMING CHANNEL
- FIGURE 10-12 CONNECTIONS FOR PIPES ON TRAPEZE
- FIGURE 10-13 ALTERNATE STIFFENER CONNECTION
- FIGURE 10-14 SAFETY SUPPORTS FOR CEILIING-MOUNTED DISTRIBUTION DEVICE
- FIGURE 10-15 SEISMIC JOINTS IN PIPES
- FIGURE 10-16 TRANSVERSE BRACE AT STEAM PIPES
- FIGURE 10-17 WELDED TABS
- FIGURE 10-18 STIFFENERS AND SADDLES AT PIPE CLAMPS
- FIGURE 10-19 SEISMIC BRACING OF PIPES ON ISOLATORS
- APPENDIX A DETERMINING THE SEISMIC HAZARD LEVEL [Go to Page]