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ASME BTH-1 Design of Below-the-Hook Lifting Devices - with Errata, 2014
- Errata to ASME BTH-1-2014 Design of Below-the-Hook Lifting Devices
- CONTENTS
- FOREWORD
- COMMITTEE ROSTER
- CORRESPONDENCE WITH THE BTH COMMITTEE
- SUMMARY OF CHANGES
- Chapter 1 Scope, Definitions, and References [Go to Page]
- 1-1 PURPOSE
- 1-2 SCOPE
- 1-3 NEW AND EXISTING DEVICES
- 1-4 GENERAL REQUIREMENTS [Go to Page]
- 1-4.1 Design Responsibility
- 1-4.2 Units of Measure
- 1-4.3 Design Criteria
- 1-4.4 Analysis Methods
- 1-4.5 Material
- 1-4.6 Welding
- 1-4.7 Temperature
- 1-5 DEFINITIONS [Go to Page]
- 1-5.1 Definitions -- General
- 1-5.2 Definitions for Chapter 3
- 1-5.3 Definitions for Chapter 4
- 1-5.4 Definitions for Chapter 5
- 1-6 SYMBOLS [Go to Page]
- 1-6.1 Symbols for Chapter 3
- 1-6.2 Symbols for Chapter 4
- 1-7 REFERENCES
- Chapter 2 Lifter Classifications [Go to Page]
- 2-1 GENERAL [Go to Page]
- 2-1.1 Selection
- 2-1.2 Responsibility
- 2-1.3 Identification
- 2-1.4 Environment
- 2-2 DESIGN CATEGORY [Go to Page]
- 2-2.1 Design Category A
- 2-2.2 Design Category B
- 2-3 SERVICE CLASS
- Chapter 3 Structural Design [Go to Page]
- 3-1 GENERAL [Go to Page]
- 3-1.1 Purpose
- 3-1.2 Loads
- 3-1.3 Static Design Basis [Go to Page]
- 3-1.3.1 Nominal Design Factors.
- 3-1.3.2 Other Design Conditions.
- 3-1.4 Fatigue Design Basis
- 3-1.5 Curved Members
- 3-1.6 Allowable Stresses
- 3-2 MEMBER DESIGN [Go to Page]
- 3-2.1 Tension Members
- 3-2.2 Compression Members
- 3-2.3 Flexural Members [Go to Page]
- 3-2.3.1 Major Axis Bending of Compact Sections.
- 3-2.3.2 Major Axis and Minor Axis Bending of Compact Sections With Unbraced Length Greater Than Lp and Noncompact Sections.
- 3-2.3.3 Major Axis Bending of Solid Rectangular Bars.
- 3-2.3.4 Minor Axis Bending of Compact Sections, Solid Bars, and Rectangular Sections.
- 3-2.3.5 Biaxial Bending.
- 3-2.3.6 Shear on Bars, Pins, and Plates.
- 3-2.4 Combined Axial and Bending Stresses
- 3-2.5 Combined Normal and Shear Stresses
- 3-2.6 Local Buckling
- 3-3 CONNECTION DESIGN [Go to Page]
- 3-3.1 General
- 3-3.2 Bolted Connections
- 3-3.3 Pinned Connections [Go to Page]
- 3-3.3.1 Static Strength of the Plates.
- 3-3.3.2 Combined Stresses.
- 3-3.3.3 Fatigue Loading.
- 3-3.3.4 Bearing Stress.
- 3-3.3.5 Pin-to-Hole Clearance.
- 3-3.3.6 Pin Design.
- 3-3.4 Welded Connections [Go to Page]
- 3-3.4.1 General.
- 3-3.4.2 Groove Welds.
- 3-3.4.3 Fillet Welds.
- 3-3.4.4 Plug and Slot Welds.
- 3-4 FATIGUE DESIGN [Go to Page]
- 3-4.1 General
- 3-4.2 Lifter Classifications
- 3-4.3 Allowable Stress Ranges
- 3-4.4 Stress Categories
- 3-4.5 Tensile Fatigue in Threaded Fasteners
- 3-4.6 Cumulative Fatigue Analysis
- 3-5 OTHER DESIGN CONSIDERATIONS [Go to Page]
- 3-5.1 Impact Factors
- 3-5.2 Stress Concentrations
- 3-5.3 Deflection
- Chapter 4 Mechanical Design [Go to Page]
- 4-1 GENERAL [Go to Page]
- 4-1.1 Purpose
- 4-1.2 Relation to Chapter 3
- 4-2 SHEAVES [Go to Page]
- 4-2.1 Sheave Material
- 4-2.2 Running Sheaves
- 4-2.3 Equalizing Sheaves
- 4-2.4 Shaft Requirement
- 4-2.5 Lubrication
- 4-2.6 Sheave Design
- 4-2.7 Sheave Guard
- 4-3 WIRE ROPE [Go to Page]
- 4-3.1 Relation to Other Standards
- 4-3.2 Rope Selection
- 4-3.3 Environment
- 4-3.4 Fleet Angle
- 4-3.5 Rope Ends
- 4-3.6 Rope Clips
- 4-4 DRIVE SYSTEMS [Go to Page]
- 4-4.1 Drive Adjustment
- 4-4.2 Drive Design
- 4-4.3 Commercial Components
- 4-4.4 Lubrication
- 4-4.5 Operator Protection
- 4-5 GEARING [Go to Page]
- 4-5.1 Gear Design
- 4-5.2 Gear Material
- 4-5.3 Gear Loading
- 4-5.4 Relation to Other Standards
- 4-5.5 Bevel and Worm Gears
- 4-5.6 Split Gears
- 4-5.7 Lubrication
- 4-5.8 Operator Protection
- 4-5.9 Reducers
- 4-6 BEARINGS [Go to Page]
- 4-6.1 Bearing Design
- 4-6.2 L10 Life
- 4-6.3 Bearing Loadings
- 4-6.4 Sleeve and Journal Bearings
- 4-6.5 Lubrication
- 4-7 SHAFTING [Go to Page]
- 4-7.1 Shaft Design
- 4-7.2 Shaft Alignment
- 4-7.3 Operator Protection
- 4-7.4 Shaft Details
- 4-7.5 Shaft Static Stress
- 4-7.6 Shaft Fatigue [Go to Page]
- 4-7.6.1 Fatigue Stress Amplification Factor.
- 4-7.6.2 Endurance Limit.
- 4-7.6.3 Fatigue Stress.
- 4-7.7 Shaft Displacement
- 4-8 FASTENERS [Go to Page]
- 4-8.1 Fastener Markings
- 4-8.2 Fastener Selection
- 4-8.3 Fastener Stresses
- 4-8.4 Fastener Integrity
- 4-8.5 Fastener Installation
- 4-8.6 Noncritical Fasteners
- 4-9 GRIP SUPPORT FORCE [Go to Page]
- 4-9.1 Purpose
- 4-9.2 Pressure-Gripping and Indentation Lifter Support Force
- 4-10 VACUUM LIFTING DEVICE DESIGN [Go to Page]
- 4-10.1 Vacuum Pad Capacity
- 4-10.2 Vacuum Preservation
- 4-10.3 Vacuum Indicator
- 4-11 FLUID POWER SYSTEMS [Go to Page]
- 4-11.1 Purpose
- 4-11.2 Fluid Power Components
- 4-11.3 Power Source/Supply
- 4-11.4 Fluid Pressure Indication
- 4-11.5 Fluid Pressure Control
- 4-11.6 System Guarding
- 4-12 LIFTING MAGNETS
- Chapter 5 Electrical Components [Go to Page]
- 5-1 GENERAL [Go to Page]
- 5-1.1 Purpose
- 5-1.2 Relation to Other Standards
- 5-1.3 Power Requirements
- 5-2 ELECTRIC MOTORS AND BRAKES [Go to Page]
- 5-2.1 Motors
- 5-2.2 Motor Sizing
- 5-2.3 Temperature Rise
- 5-2.4 Insulation
- 5-2.5 Brakes
- 5-2.6 Voltage Rating
- 5-3 OPERATOR INTERFACE [Go to Page]
- 5-3.1 Locating Operator Interface
- 5-3.2 Unintended Operation
- 5-3.3 Operating Levers
- 5-3.4 Control Circuits
- 5-3.5 Push-Button Type
- 5-3.6 Push-Button Markings
- 5-3.7 Sensor Protection
- 5-3.8 Indicators
- 5-4 CONTROLLERS AND AUXILIARY EQUIPMENT [Go to Page]
- 5-4.1 Control Considerations
- 5-4.2 Control Location
- 5-4.3 Control Selection
- 5-4.4 Magnetic Control Contactors
- 5-4.5 Static and Inverter Controls
- 5-4.6 Lifting Magnet Controllers
- 5-4.7 Rectifiers
- 5-4.8 Electrical Enclosures
- 5-4.9 Branch Circuit Overcurrent Protection
- 5-4.10 System Guarding
- 5-5 GROUNDING [Go to Page]
- 5-5.1 Grounding Method
- 5-6 POWER DISCONNECTS [Go to Page]
- 5-6.1 Disconnect for Powered Lifter
- 5-6.2 Disconnect for Vacuum Lifter
- 5-6.3 Disconnect for Magnet
- 5-6.4 Generator Supplied Magnets
- 5-7 BATTERIES [Go to Page]
- 5-7.1 Battery Condition Indicator
- 5-7.2 Enclosures
- 5-7.3 Battery Alarm
- Figures [Go to Page]
- Fig. 4-2.6-1 Sheave Dimensions
- Fig. 4-2.7-1 Sheave Gap
- Fig. 4-9.2-1 Illustration of Holding and Support Forces
- Tables [Go to Page]
- Table 2-3-1 Service Class
- Table 3-2.2-1 Limiting Width–Thickness Ratios for Compression Elements
- Table 3-3.4.2-1 Minimum Effective Throat Thickness of Partial-Penetration Groove Welds
- Table 3-3.4.3-1 Minimum Sizes of Fillet Welds
- Table 3-4.3-1 Allowable Stress Ranges, ksi (MPa)
- Table 3-4.4-1 Fatigue Design Parameters
- Table 4-5.3-1 Strength Factors for Calculating Load Capacity (American Standard Tooth Forms)
- Table 4-6.2-1 L10 Life
- Table 4-7.5-1 Key Size Versus Shaft Diameter (ASME B17.1)
- Table 4-7.5-2 Key Size Versus Shaft Diameter (DIN 6885-1)
- Table 4-7.6.1-1 Fatigue Stress Amplification Factors
- NONMANDATORY APPENDIX A COMMENTARY FOR CHAPTER 1: SCOPE, DEFINITIONS, AND REFERENCES1 [Go to Page]
- A-1 PURPOSE
- A-2 SCOPE
- A-3 NEW AND EXISTING DEVICES
- A-4 GENERAL REQUIREMENTS [Go to Page]
- A-4.1 Design Responsibility
- A-4.2 Units of Measure
- A-4.3 Design Criteria
- A-4.4 Analysis Methods
- A-4.5 Material
- A-4.6 Welding
- A-4.7 Temperature
- A-5 DEFINITIONS
- A-6 SYMBOLS
- A-7 REFERENCES
- NONMANDATORY APPENDIX B COMMENTARY FOR CHAPTER 2: LIFTER CLASSIFICATIONS1 [Go to Page]
- B-1 GENERAL [Go to Page]
- B-1.1 Selection
- B-1.3 Identification
- B-1.4 Environment
- B-2 DESIGN CATEGORY [Go to Page]
- B-2.1 Design Category A
- B-2.2 Design Category B
- B-3 SERVICE CLASS
- NONMANDATORY APPENDIX C COMMENTARY FOR CHAPTER 3: STRUCTURAL DESIGN1 [Go to Page]
- C-1 GENERAL [Go to Page]
- C-1.1 Purpose
- C-1.2 Loads
- C-1.3 Static Design Basis
- C-1.5 Curved Members
- C-1.6 Allowable Stresses
- C-2 MEMBER DESIGN [Go to Page]
- C-2.2 Compression Members
- C-2.3 Flexural Members [Go to Page]
- C-2.3.1 Major Axis Bending of Compact Sections.
- C-2.3.2 Major Axis and Minor Axis Bending of Compact Sections With Unbraced Length Greater Than Lp and Noncompact Sections.
- C-2.3.3 Major Axis Bending of Solid Rectangular Bars.
- C-2.3.4 Minor Axis Bending of Compact Sections, Solid Bars, and Rectangular Sections.
- C-2.3.6 Shear on Bars, Pins, and Plates.
- C-2.4 Combined Axial and Bending Stresses
- C-2.5 Combined Normal and Shear Stresses
- C-2.6 Local Buckling
- C-3 CONNECTION DESIGN [Go to Page]
- C-3.1 General
- C-3.2 Bolted Connections
- C-3.3 Pinned Connections [Go to Page]
- C-3.3.1 Static Strength of the Plates.
- C-3.3.2 Combined Stresses.
- C-3.3.3 Fatigue Loading.
- C-3.3.4 Bearing Stress.
- C-3.3.5 Pin-to-Hole Clearance.
- C-3.3.6 Pin Design.
- C-3.4 Welded Connections
- C-4 FATIGUE DESIGN [Go to Page]
- C-4.1 General
- C-4.2 Lifter Classifications
- C-4.3 Allowable Stress Ranges
- C-4.4 Stress Categories
- C-4.5 Tensile Fatigue in Threaded Fasteners
- C-4.6 Cumulative Fatigue Analysis
- C-5 OTHER DESIGN CONSIDERATIONS [Go to Page]
- C-5.1 Impact Factors
- C-5.2 Stress Concentrations
- C-5.3 Deflection
- NONMANDATORY APPENDIX D COMMENTARY FOR CHAPTER 4: MECHANICAL DESIGN1 [Go to Page]
- D-1 GENERAL [Go to Page]
- D-1.1 Purpose
- D-1.2 Relation to Chapter 3
- D-2 SHEAVES [Go to Page]
- D-2.1 Sheave Material
- D-2.2 Running Sheaves
- D-2.4 Shaft Requirement
- D-2.5 Lubrication
- D-2.6 Sheave Design
- D-2.7 Sheave Guard
- D-3 WIRE ROPE [Go to Page]
- D-3.1 Relation to Other Standards
- D-3.2 Rope Selection
- D-3.3 Environment
- D-4 DRIVE SYSTEMS [Go to Page]
- D-4.1 Drive Adjustment
- D-4.3 Commercial Components
- D-4.5 Operator Protection
- D-5 GEARING [Go to Page]
- D-5.3 Gear Loading
- D-5.4 Relation to Other Standards
- D-5.7 Lubrication
- D-6 BEARINGS [Go to Page]
- D-6.2 L10 Life
- D-6.3 Bearing Loadings
- D-6.5 Lubrication
- D-7 SHAFTING [Go to Page]
- D-7.5 Shaft Static Stress
- D-7.6 Shaft Fatigue
- D-8 FASTENERS [Go to Page]
- D-8.5 Fastener Installation
- D-9 GRIP SUPPORT FORCE [Go to Page]
- D-9.2 Pressure-Gripping and Indentation Lifter Support Force
- D-10 VACUUM LIFTING DEVICE DESIGN [Go to Page]
- D-10.2 Vacuum Preservation
- D-11 FLUID POWER SYSTEMS [Go to Page]
- D-11.2 Fluid Power Components
- NONMANDATORY APPENDIX E COMMENTARY FOR CHAPTER 5: ELECTRICAL COMPONENTS1 [Go to Page]
- E-1 GENERAL [Go to Page]
- E-1.1 Purpose
- E-2 ELECTRIC MOTORS AND BRAKES [Go to Page]
- E-2.1 Motors
- E-2.2 Motor Sizing
- E-2.4 Insulation
- E-2.5 Brakes
- E-2.6 Voltage Rating
- E-3 OPERATOR INTERFACE [Go to Page]
- E-3.1 Locating Operator Interface
- E-3.3 Operating Levers
- E-3.4 Control Circuits
- E-3.5 Push-Button Type
- E-3.6 Push-Button Markings
- E-4 CONTROLLERS AND AUXILIARY EQUIPMENT [Go to Page]
- E-4.2 Control Location
- E-4.4 Magnetic Control Contactors
- E-4.5 Static and Inverter Controls
- E-4.7 Rectifiers
- E-4.8 Electrical Enclosures
- E-5 GROUNDING [Go to Page]
- E-5.1 Grounding Method
- How can you reach us? ItŒs easier than ever! [Go to Page]