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Rigging Study& L ift ing Study

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Rigging Study

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What is Rigging?

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Definition of RiggingRigging is part of the lifting operation which forms the link between the crane and the load

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Rigging Study

Lifting Study

Installation Sequence

Project Management

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START

DATA MATERIAL:DIMENSION & WEIGHT

REFERENCE:RIGGING BOOK + EQUIPMENT MANUAL + Standard Rigging

NEED DUO CRANE

TAILING DESIGNMONO CRANE

NoYes

JSA

RIGGING PLAN

STOP

REPORT

ACTION

CONTROL

Risk

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R i g g i n g S t u d y1. Weight of Material2. Dimension of Material3. Center Gravity

1. Sling Dimension2. Lifting Lug

3. Shackle4. Spreader Beam

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Rigging Study

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L i ft i n g S t u d y1. Site Arrangement2. Site Elevation3. Free Space4. Ground and Access

1. Type of LiftingSolo Crane / Duo Crane

2. Type of CraneRough Terrain / Truck Crane / Crawler / Tower Crane

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Rigging Basics - Hitches

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Rigging Basics - Hitches

• Choker hitches are not suited to long loose bundles

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Rigging Basics - Hitches• Double Wrap Basket Hitch– adjustment of slings is required while taking up

slack to avoid overloading one side of the sling (this applies to all basket hitches)

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Rigging Basics – Sling Angle

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Rigging Basics – Sling Angle

Sling angle has a dramatic effect on the actual load on the sling. Take a sling that has a 1000 pound vertical lifting capacity in a basket hitch:

As angle decreases - tension on each leg increases - increasing the strain on each leg

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Rigging Basics – Sling Angle

A different look, with the same load and sling, changing the angle has a similar dramatic effect

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Rigging Basics

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Sling Angle Example Select slings to pick up the load shown below.

CG2’8’

10,000#

Using wire rope slings, EIPS grade, 6x19 class ropewith a mechanical splice, Sling A needs to be 3/8-in. diameter min.Sling B needs to be ¾-in. diameter min.

60º

16’

2,400#

13.3’

13.44’

8,084#

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Rigging Basics – D/d Ratio• D/d ratio is the ratio of the diameter

around which the sling is bent divided by the body diameter of the sling. Whenever a sling body is bent around a diameter, the strength of the sling is decreased.

Application: 6x19 and 6x37 Class rope, may not apply to cable laid or braided slings

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Rigging Basics – D/d Ratio

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Rigging Basics-Sling Winch

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Rigging Attachments

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Rigging Attachments

• TurnbucklesTurnbuckles can be used to adjust sling length. Be sure to use only load rated components

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Lift ing Study

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What is Lift ing Study?

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Rigging Study

Lifting Study

Installation Sequence

Project Management

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START

DATA MATERIAL:DIMENSION & WEIGHT

REFERENCE:RIGGING BOOK + EQUIPMENT MANUAL + Standard Rigging

NEED DUO CRANE

TAILING DESIGNMONO CRANE

NoYes

JSA

RIGGING PLAN

STOP

REPORT

ACTION

CONTROL

Risk

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R i g g i n g S t u d y1. Weight of Material2. Dimension of Material3. Center Gravity

1. Sling Dimension2. Lifting Lug

3. Shackle4. Spreader Beam

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L i ft i n g S t u d y1. Site Arrangement2. Site Elevation3. Free Space4. Ground and Access

1. Type of LiftingSolo Crane / Duo Crane

2. Type of CraneRough Terrain / Truck Crane / Crawler / Tower Crane

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STEP 1

LIFTING TOOLS IN SPECIAL CONDITION

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STEP 2

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STEP 3

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STEP 4

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Displacement Frame Analysis

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Displacement Stress Analysis

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Safety in Rigging EngineeringCrawler Bearing Reaction

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LiftingProcedure

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RIGGING DEPARTMENT LOGO.LIFT

SWINGMOVE

DOWN

In safety corridor

THINK SAFEDO SAFELYSAFETY FIRST

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www.facebook.com/pages/HaGun-Institute

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