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INSTRUCTOR:
Richard L Mikut, Jr., P.E., M.ASCE
This course is sponsored by the Construction Institute.
Purpose and Background
In this course, we will be going over the fundamentals of rigging in the construction industry, which can carry over into the manufacturing and material handling industries as well. We will start with going over center of gravity, weights, and reactions and then move on to individual components of rigging. We will walk through rigging safety and major laws that affect the industry. After learning about the components, we will work through basic lifting lug design and spreader design. Then, we will complete full rigging design on modules from the lug to the crane hook. After this course, a person should be able to start with a piece to lift and be able to design a complete rigging system to lift that piece safely and efficiently.
Benefits and Learning Outcomes
Upon completion of this course, you will be able to:
- Identify and calculate the center of gravity of a piece and know its significance.
- Identify individual pieces of rigging and understand their intended use.
- Calculate reaction loads going to each lifting point.
- Design a basic lifting lug and a rigging system to lift a module.
- Size a basic lifting spreader.
- Identify and understand critical information required to size and design lifting components.
- Describe practical safety guidelines related to rigging.
- Identify and size adjustable rigging components and understand when they may be required.
- Describe where to find rigging information and the various manufacturers of the components.
Assessment of Learning Outcomes
Achievement of the learning outcomes by attendees will be assessed through (3) exams.
Who Should Attend?
- Field engineers
- Construction engineers
- Construction managers
- Structural engineers
- Experienced crane operators
How to Earn your CEUs/PDHs
This course is worth 2.4 CEUs/24 PDHs. To receive your certificate of completion, you will need to complete (3) exams and receive a passing score of 70% or higher.
How do I convert CEUs to PDHs?
1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]
Course Outline
Week 1: Center of Gravity
Course Introduction & Week Introduction
What is the center of gravity?
Why is the center of gravity important?
How to find the center of gravity?
Learning Exercise - Center of Gravity
Center of gravity by proportion method
Center of gravity by moment method
Safety moment – Center of Gravity
Learning Exercise - Finding the Center of Gravity
Conclusion
Week 2: Weights and Reactions
Introduction
Weight of the module
How to find/calculate the weight
How to find/calculate the reactions
Learning Exercise - Weight and Reactions
Reactions and center of gravity
Reactions and rigging
Safety moment – weight and reactions
Learning Exercise - Reactions and Rigging
Conclusion
Week 3: Wire Rope
Introduction
Wire rope basics
Wire rope types
Wire rope use and safety factors
Learning Exercise - Wire Rope Basics
Wire rope end terminations
D/d Ratio and capacity effects
Safety Moment – Wire Rope
Learning Exercise - Wire Rope Ends and Capacity
Conclusion
Week 4: Slings
Introduction
Load hitches
Wire rope slings
Synthetic slings
Learning Exercise - Slings
Chain slings
Sling bridles
Safety moment - Slings
Learning Exercise - Bridles
Conclusion
Exam: Weeks 1-4
Week 5: Shackles
Introduction
Shackle terminology and types
Shackle standards and markings
Shackle manufacturers and capacity charts
Learning Exercise - Shackles
Proper use of shackles
Shackle selection examples
Safety Share - Shackles
Learning Exercise - Use and Selection of Shackles
Conclusion
Week 6: Rigging Components
Introduction
Chain falls
Rolling blocks
Snatch/crane blocks
Learning Exercise - Blocks
Beam clamps
Turnbuckles/Steamboats
Other Components
Learning Exercise - Other Components
Conclusion
Week 7: Lifting Lug Design
Introduction
Lifting lug failure modes
Types of lifting lugs
Manufactured lugs
Learning Exercise - Lifting lugs and failure modes
Lifting lug design 1
Lifting lug design 2
Safety moment – lifting lugs
Learning Exercise - Design of lifting lugs
Conclusion
Week 8: Simple Spreader Design
Introduction
How do spreaders work?
Different types of spreaders
Manufactured spreaders
Learning Exercise - Spreaders
Design of spreader 1
Design of spreader 2
Safety moment - spreaders
Learning Exercise - Design of Spreaders
Exam: Weeks 4-8
Week 9: Simple Lift Beam Design
Introduction
How does a lift beam work?
Types of lift beams
Manufactured lift beams
Learning Exercise - Lift Beams
Lift beam design 1
Lift beam design 2
Safety moment – lift beam
Learning Exercise - Lift beam design
Conclusion
Week 10: Upending/Rotating during a lift
Introduction
What is an upending lift?
Module upending techniques
Why is the tailing lug location important?
Learning Exercise - Upending basics
Negative Offset Lug Location
Upending example
Safety moment - upending
Learning Exercise - Upending Solutions
Conclusion
Week 11: Rigging Design 1
Introduction
Two leg bridle example
Three leg bridle example
Four leg bridle example
Learning Exercise - Bridle Calculation 1
Additional example 1
Additional example 2
Safety moment - bridles
Learning Exercise - Bridle Calculation 2
Conclusion
Week 12: Rigging Design 2
Introduction
Spreader lift 1
Spreader lift 2
Lift beam lift 1
Learning Exercise - Design Examples
Lift beam lift 2
Upending lift
Safety moment – lift bars
Learning Exercise - Design Examples
Conclusion
Exam: Weeks 9-12