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Fall Protection (AGC Susan Harwood Grant Training Program)
AGC construction fall protection training with good/better photo comparisons: guardrails, scaffolds, ladders, nets and personal fall arrest.
Slide text
· 147 slides · by Associated General Contractors of America (AGC)
The words on each slide as the author wrote them, read from the file by software so they can be searched. Layout, pictures and tables are not shown here: the slides above and the download are the original.
- Slide 1
Fall Protection
- Susan Harwood Grant Training Program
- Slide 2
Disclaimer/Usage Notes
- Photos shown in this presentation may depict situations that are not in compliance with applicable OSHA requirements.
- It is not the intent of the content developers to provide compliance-based training in this presentation, the intent is more to address hazard awareness in the construction industry, and to recognize the overlapping hazards present in many construction workplaces.
- It should NOT be assumed that the suggestions, comments, or recommendations contained herein constitute a thorough review of the applicable standards, nor should discussion of “issues” or “concerns” be construed as a prioritization of hazards or possible controls. Where opinions (“best practices”) have been expressed, it is important to remember that safety issues in general and construction jobsites specifically will require a great deal of site- or hazard-specificity – a “one size fits all” approach is not recommended, nor will it likely be very effective.
- No representation is made as to the thoroughness of the presentation, nor to the exact methods of remediation to be taken. It is understood that site conditions vary constantly, and that the developers of this content cannot be held responsible for safety problems they did not address or could not anticipate, nor those which have been discussed herein or during physical presentation. It is the responsibility of the employer, its subcontractors, and its employees to comply with all pertinent rules and regulations in the jurisdiction in which they work. Copies of all OSHA regulations are available from your local OSHA office, and many pertinent regulations and supporting documents have been provided with this presentation in electronic or printed format. This presentation is intended to discuss Federal Regulations only - your individual State requirements may be more stringent.
- It is assumed that individuals using this presentation or content to augment their training programs will be “qualified” to do so, and that said presenters will be otherwise prepared to answer questions, solve problems, and discuss issues with their audiences.
- Areas of particular concern (or especially suited to discussion) have additionally been marked with a ? symbol throughout the program…as a presenter, you should be prepared to discuss all of the potential issues/concerns, or problems inherent in those photos particularly.
- Slide 3
Introduction
- Why Fall Protection?
- Why Now?
- Slide 4
Construction worker dies in fall from condo project
- Worker Hurt In Fall At University Project
- Bridge construction accident injures six
- Elementary school construction accident sends 2 to hospital
- Ironworker who fell had been on job only 3 weeks
- Worker injured in second floor fall
- These headlines are all from the third and fourth quarter of 2003
- Slide 5
Anatomy of a Fall
- .33sec./2 feet
- .67 sec./7 feet
- 1 sec./16 feet
- 2 sec./64 feet
- It takes most people about 1/3 of a second to become aware.
- It takes another 1/3 of a second for the body to react.
- A body can fall up to 7 feet in 2/3 of a second.
- Slide 6
Acceleration = 32 ft/sec² Deceleration = 0 ft/sec²
- Slide 7
Statistics
- How Can the Numbers Focus Our Efforts?
- Slide 8
Falls
- Falls are the leading cause of fatalities in the construction industry.
- An average of 362 fatal falls occurred each year from 1995 to 1999, with the trend on the increase.
- The cost of care for injuries related to falls is a financial burden for the entire construction industry
- Slide 9
Fatal Falls Most Often From
- Floors, Loading
- Docks, Ground
- Level 4%
- Structural Steel
- 9%
- Ladders 15%
- Non-moving Vehicles 3%
- Other 12%
- Roofs 37%
- Scaffolds 20%
- Slide 10
Non- Fatal Falls Most Often From
- Scaffolds 15%
- Other 22%
- Roofs 12%
- Non-moving Vehicles 9%
- Ladders 35%
- Stairs/Steps 7%
- Slide 11
Citations
- What is OSHA Focusing On?
- Slide 12
2003 Most Frequently Cited Construction Standards
- Fall protection – unprotected sides and edges
- 501(b)(1)
- 1908
- Scaffolds - fall protection
- 451(g)(1)
- 1415
- PPE - hard hats
- 100(a)
- Fall Protection - residential construction
- 501(b)(13)
- 1244
- Scaffolds - access
- 451(e)(1)
- Excavation - Protection of employees
- 652(a)(1)
- 453(b)(2)(v)
- 1087
- Scaffolds - platform construction
- 1051
- Training & education
- 21(b(2)
- Ladders -three foot above
- 1053(b)(1)
- 1202
- 1180
- Aerial lifts - Fall protection
- 451(b)(1)
- 1377
- 1000
- 1500
- Plus 1,192 General Duty Clause Citations
- 2000
- 2500
- Slide 13
2003 Subpart L 1926.450-454 Scaffolds
- Scaffolds over 10 feet with no fall protection
- 451(g)(1)
- 1415
- Access to scaffolds
- 451(e)(1)
- 1202
- Aerial lifts - Fall protection
- 453(b)(2)(v)
- 1087
- Scaffold platform construction
- 451(b)(1)
- 1051
- Employee training for scaffold use
- 454(a)
- 1000
- 1200
- 1400
- 1600
- Slide 14
2003 Subpart M 1926.500-503 Fall Protection
- Fall protection - Unprotected sides & edges
- 501(b)(1)
- 1907
- Fall protection for residential construction
- 501(b)(13)
- 1240
- Fall hazards training program
- 503(a)(1)
- Fall protection for low-slope roofs
- 501(b)(10)
- Fall protection for steep roofs
- 501(b)(11)
- 1000
- 1500
- 2000
- 2500
- Slide 15
2003 Subpart R 1926.750-761 Steel Erection
- Fall Protection 15 Feet
- 760(a)(1)
- Fall Hazard Training
- 761(b)
- Commencement of Steel Erection
- 752(b)
- Connectors PFAS over 15 Feet
- 760(b)(3)
- Concrete Strength Tested
- 752(a)(1)
- Slide 16
2003 Subpart X 1926.1050-1060 Ladders
- Portable ladders not extending three feet above the landing surface
- 1053(b)(1)
- Stair rails & handrails
- 1052(c)(1)
- Stairways/ladders required
- 1051(a)
- Appropriate use of ladders
- 1053(b)(4)
- Training program
- 1060(a)
- 1000
- Slide 17
2003 Most Frequently Cited
- Construction Standards
- In Fiscal Year 2003, 50% of the top 25 OSHA Construction standards violated were Fall Related.
- Slide 18
What Is Fall Protection?
- A series of reasonable steps taken to cause elimination or control of the injurious effects of an unintentional fall while accessing or working at height
- Slide 19
Philosophies of Fall Protection
- Stop/Prevent The Fall
- Catch The Fall
- Restraint/Positioning
- Fall Arrest
- Guardrails
- Safety Nets
- Warning Lines
- Catch Platforms
- Controlled Access Zones
- Controlled Decking Zones
- Safety Monitors
- Do these stop/prevent the fall?
- Slide 20
Planning for Fall Protection
- Best practice dictates that fall protection becomes an integral part of the project planning process, from constructability, to systems installation, to use and maintenance
- A project cannot be truly safe unless fall protection is incorporated into every phase of the construction process
- Planning will keep workers safe and minimize liability for all parties involved
- Slide 21
The Steps of Fall Protection?
- Is this the correct order?
- Slide 22
Controlling Fall Exposures
- Select fall protection systems appropriate for given situations.
- Use proper construction and installation of safety systems.
- Supervise employees properly.
- Use safe work procedures.
- Train workers in the proper selection, use, and maintenance of fall protection systems.
- Evaluate the effectiveness of all steps
- Slide 23
Competent Person
- means one who is capable of identifying existing and predictable hazards in the the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has the authorization to take prompt corrective measures to eliminate them.
- Slide 24
Qualified Person
- means one who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training and experience, has successfully demonstrated his/her ability to solve or resolve problems related to the subject matter
- Slide 25
By the Numbers
- Some of the Applicable Triggers
- Slide 26
Falls onto dangerous equipment
- 0’ Allowable Fall
- Distance
- (You Must Be Protected)
- Slide 27
Break in elevation without a step
- 19”
- Slide 28
First step onto a scaffold system
- 2’
- Slide 29
Work on forms or steel reinforcing
- 6’
- Slide 30
Work on surfaces such as decks, non-residential roofs, ramps, etc
- 6’
- Slide 31
Scaffold platforms without guardrails
- 10’
- Slide 32
- Vertical fixed ladders without cages, etc.
- 24’
- Slide 33
Climbing steel reinforcing
- 24’
- Slide 34
Steel erection work
- 15-30’, or two stories, whichever is less
- Slide 35
Roofs with pitches 8:12 or less in residential-type (wood frame) construction
- 25’
- Slide 36
Falls into safety nets
- 30’
- Slide 37
Height of scaffold ladders requiring rest platforms
- Over 35’
- Slide 38
Falls from portable extension ladders
- No Limit
- Slide 39
Which Standards Apply?
- It’s Not Just Subpart M!
- Slide 40
Which Standards Apply?
- Slide 41
Which Standards Apply?
- Slide 42
Which Standards Apply?
- Slide 43
Which Standards Apply?
- Slide 44
Which Standards Apply?
- Slide 45
Which Standards Apply?
- Slide 46
Which Standards Apply?
- Slide 47
Which Standards Apply?
- Slide 48
Which Standards Apply?
- Slide 49
Which Standards Apply?
- Slide 50
Hazard Recognition
- Allowable Controls and
- Best Practices
- Slide 51
Vertical Exposures
- Rebar
- Formwork
- Slide 52
Vertical Rebar
- OSHA allows:
- Climbing to 24’
- Tie-off at work location over 6’
- Recommended:
- Tie during the climb
- Slide 53
Formwork
- Required Fall Protection at 6’
- Recommended:
- Use scaffold brackets
- Ensure safety over/on top of the wall
- Slide 54
Steel Erection
- Connectors
- Detail Work
- Decking
- Fall Protection Systems in Accordance With Subpart M Systems Criteria (1926.502)
- Slide 55
Connector Safety
- Personal Fall Arrest Systems required at 15’
- Connector option to 30’ or two stories, whichever is less
- Best Practice: NO OPTION
- Slide 56
Detail Work
- Fall Protection
- Required at 15’
- Guardrails
- Nets
- Personal Fall Arrest
- Systems
- Slide 57
Decking
- PFAS
- Controlled Decking
- Zones
- Guardrails (after leading edge work is complete)
- Slide 58
Controlled Decking Zones
- Required where PFAS cannot be used, from 15-30’
- Limited in size
- Must be marked
- Training required
- Not applicable over 30’, or two stories, whichever is less
- Slide 59
Decks (Walking & Working Surfaces)
- Open-sided Floors
- Holes
- Leading Edges
- Slide 60
Open Sided Floors
- Guardrails
- Catch Platforms
- Restraint Devices
- Safety Nets
- Slide 61
Guardrails
- Primary Issues
- Complete System
- Full coverage
- Accessways/Ladderways
- Material Handling Areas
- Proper construction
- Strength
- Deflection
- Maintenance
- Custody & Control
- Slide 62
Coverage
- Bad
- Better
- Slide 63
Accessways/Ladderways
- Bad
- Better
- Slide 64
Material Handling
- When areas have been opened, PFAS is required
- Gates are preferred to removable rails
- Slide 65
Wood Guardrail Construction
- Proper Height
- Midrails
- Toeboards
- Adequate Strength
- Slide 66
Cable Guardrail Construction
- Proper Height
- Cannot deflect below 39”
- Marked every 6’
- Terminations and Attachments
- Maintenance!
- Slide 67
Holes
- Covers
- Guardrails
- Slide 68
Skylights
- Must be protected
- Slide 69
Leading Edges
- Catch Platforms
- PFAS
- Nets
- In some instances (residential construction and pre-cast concrete), a site-specific fall protection plan
- Slide 70
Scaffolds
- Supported
- Fabricated Frame
- Tube & Coupler
- Wall Brackets
- Form Brackets
- Ladder Jacks
- Pump Jacks
- Slide 71
Scaffolds
- Suspended
- Swings
- Multi-point
- Catenary
- Slide 72
Scaffolds
- Access
- Planking
- Guardrails
- Erection &
- Dismantling
- Training
- Slide 73
Scaffold Access
- Bad
- Better
- Slide 74
Scaffold Platform Construction
- Bad
- Better
- Slide 75
Scaffold Guardrails
- Bad
- Better
- Be especially aware of scaffold ends!
- Slide 76
Use of Braces for Guardrails
- < 48"
- Install Mid Rail
- 38 - 48"
- Platform
- Brace can be used as a Top Rail.
- Slide 77
Use of Braces for Guardrails
- Install Top Rail
- < 48"
- 20 - 30"
- Platform
- Brace can be used as a Mid Rail
- Slide 78
Braces as Guardrails
- The guardrails are in compliance using a 2x4 as one rail and the brace as the other rail.
- May not be the safest way
- Slide 79
Scaffold Erection & Dismantling
- “Competent Person” Determines Where Fall Protection is “Feasible” and Does Not Create a Greater Hazard
- Using Scaffolds as Anchorage Points?
- Slide 80
Aerial Work Platforms
- Boomlifts
- Scissorlifts
- Boom Trucks (Cherry
- Pickers)
- Mast Climbers
- Slide 81
Stairs
- Slide 82
Ladders
- Extension
- Step
- Vertical Fixed
- Job-built
- Slide 83
Ladders
- Extension
- Slide 84
Ladders
- Step
- Slide 85
Roofs
- Slide 86
Methods of Roof Fall Protection
- Safety
- Monitors
- Guardrails and warning lines
- Fall
- Arrest
- Slide 87
Flat/Low Slope
- 4:1 Slope or Less
- Beyond the Use of Guardrails, OSHA Allows the Use of
- Warning Lines
- Safety Monitors
- Recommended:
- Guardrails or PFAS where feasible
- Limited use of lines and monitors on flat roofs only
- Slide 88
Roof Warning Lines
- Must be 6 feet back from edges (10’ with equipment)
- NO CAUTION TAPE!
- Slide 89
Roof Warning Lines
- These lines are down.
- Warning lines must be maintained at 34 - 39” above the working surface
- Slide 90
Safety Monitor
- Oversees work outside the warning lines.
- Establishes the procedure to protect.
- Workers must receive special training.
- Use should be extremely limited
- Slide 91
High Slope
- Over 4:1 Slope
- OSHA Mandates
- Guardrails
- Catch Platforms
- Nets
- Restraint Devices
- Personal Fall
- Arrest Systems
- (PFAS)
- Slide 92
Residential-type Construction
- Wood frame
- Maximum eave height 25’
- Maximum total building height 48’
- Additional definitions
- Slide 93
Residential-type Roof Requirements
- (4:12 or less)
- Safety Monitor Required
- Safety Monitors must not be performing work.
- Warning lines are OK 6 feet back.
- No Slide Guard
- Required, But
- Highly Recommended
- or less
- Total Height
- Less Than
- 48 Feet
- Eave Height Less Than
- 25 Feet
- Slide 94
Roof Edge Slide Guards
- BAD!
- BETTER!
- Slide guard must extend across the entire eave.
- Slide 95
Residential-type Roof Requirements
- (4:12 - 6:12)
- Slide Guard
- Required Along
- Entire Eave Edge
- Total Height
- Less Than
- 48 Feet
- Eave Height Less Than
- 25 Feet
- Guards must be extend across entire eave.
- Slide 96
What’s Wrong on this 6:12 Roof?
- No slide guards
- Ladder is not tied off and does not extend up 3 feet
- Slide 97
Residential-type Roof Requirements
- (6:12 - 8:12)
- While standing on the plank below, the employee must secure roof jacks, then climb up to the plank and continue to install the roof.
- Remove in reverse order.
- Total Height
- Less Than
- 48 Feet
- Slide Guard
- Required Along
- Entire Eave Edge & Every 8 Feet
- Eave Height
- Less Than
- 25 Feet
- Slide 98
Residential-type Roof
- (Over 8:12 pitch or over 25 feet high)
- Personal Fall Arrest System
- Fall Protection
- Required
- And Higher
- Guardrail
- Conventional fall protection must be utilized.
- Eave Height Greater Than 25 Feet
- Slide 99
Roof Guardrails
- Guardrails are a positive option on high slope roofs
- Slide 100
Personal Fall Arrest Systems
- Nets
- As a Last Resort
- Slide 101
Primary Concerns
- Impact Force to the Body Less Than 1800# (with a harness)
- Maximum 6’ Free Fall Distance
- May Not Hit Structures Below
- Maximum Weight of Individual w/Tools of 310#
- Slide 102
Impact Force
- Minimize Fall Distance
- Tie off at or above D-ring height wherever possible
- Use Shock Absorbers
- Choose appropriate harnesses, and wear them properly
- Slide 103
Fall Distances
- Total Fall Distance
- Free Fall Distance
- Slide 104
Impacting Structures Below (Total Fall Distance)
- Consider:
- anchorage point location in relation to D-ring height
- lanyard length,
- harness elongation,
- shock absorber opening length,
- body below D-ring
- body viscosity (soft tissue injuries!)
- Slide 105
Impacting Structures Below (Total Fall Distance)
- 6’ Lanyard Length
- 3.5’ Deceleration Device
- 5’ From D-Ring to Worker’s Feet
- 3’ Safety Factor (stretch, bounce, etc.)
- Total 18.5’ below anchorage point
- All distances are approximate, and shown for illustration only. This is why it is critical to maintain the safety factor distance!
- Slide 106
Free Fall Distance
- How far a worker falls before shock absorbing or deceleration equipment begins to take effect
- Affects both impact forces and total fall distance
- Anchorage point location in relation to D-ring height
- Below the D-ring allows excessive falls
- Above the D-ring minimizes free fall to less than 6’
- Slide 107
Free Fall Distance or “Vertical Displacement”
- 5’ From D-Ring to Worker’s Feet
- 6’ Lanyard Length
- 3.5’ Deceleration Device
- 3’ Safety Factor (stretch, bounce, etc.)
- Total 11’ travel distance of d-ring before fall arrest takes effect. This potential impact force exceeds many lanyard capacities (and OSHA standards).
- When added to “total fall distance”, anchoring at the feet can become problematic
- All distances are approximate, and shown for illustration only. This is why it is critical to maintain the safety factor distance!
- Slide 108
Minimizing Free Fall Distance or “Vertical Displacement”
- 6’ Lanyard Length
- 3.5’ Deceleration Device
- Tie to anchor above the D-ring
- Extended Lanyard Length Plus maximum 2’ extension (usually within inches)
- Or use a retractable
- Using an anchorage above the D-ring and a standard lanyard may still allow an employee to fall a distance that may be difficult to rescue from. Using a retractable minimizes forces on the body, and may make rescue easier (and therefore more timely)
- All distances are approximate, and shown for illustration only. This is why it is critical to maintain the safety factor distance!
- Slide 109
Practical Implications of Total & Free
- Fall Distance Added Together
- These workers are tied to the beams they are standing on with choker slings.
- How far will they fall?
- Slide 110
Watch Swing Falls
- This worker is tied off using a retractable lifeline.
- There is a major swing fall potential if he fell to either side.
- Swing Fall
- Slide 111
Personal Fall Arrest Systems
- Anchorage
- Body
- Connector
- Harnesses
- Caribiners
- Rope Grabs
- Beam Wraps
- Lanyards
- Positioning
- Slide 112
Anchorages
- Must support 5000# per employee attached,
- Or as part of a complete personal fall arrest system which maintains a safety factor of at least two
- Or 3000# when using fall restraint or a Self- Retracting Lifeline (SRL, Retractable, or “yo-yo”) which limits free fall distance to 2 feet
- Should always be at or above D-ring height
- Slide 113
Roof & Deck Anchors
- Permanent Anchors
- Wood Roof
- Anchor
- Metal Roof
- Anchor
- Slide 114
Use of Eye Bolts
- Rated for loading parallel to the bolt axis.
- If wall mounted, the rating perpendicular to the axis must be good for 5,000 lbs. per employee
- Rated
- Needed
- Slide 115
Girder Grip Anchorage
- Rings
- These attachments can be mounted through bolt holes on steel members.
- They are rated at 5,000 lbs. in all directions
- Slide 116
Beam Clamps
- Beam clamps can make an effective anchorage when used properly, and with the correct lanyard
- TIGHT
- BEAM
- CLAMP
- PIN SET
- Be sure pin is inserted full length and clamp is tight.
- Slide 117
- Beware of potential for pulling off of coped ends on filler beams!
- Slide 118
Horizontal Life Lines
- Provide maneuverability.
- Must be designed, installed and used under the guidance of a qualified person
- This could be interpreted as requiring the use of manufactured systems, which is recommended
- Slide 119
Horizontal Line Engineering
- 72,000 lb
- 72,000 lb
- 5,000 lb
- 5,000 lb
- Anchor stress depends on the sag angle of the line.
- Slide 120
Line Stanchions
- 5,000lb.
- The connection
- 3 ft.
- of the line
- stanchion to the flange must support the bending moment applied to the base.
- Bending
- Moment
- 15,000 ft-lb
- Slide 121
Body (Harnesses)
- Need to be inspected frequently (daily before use by the worker, at least monthly by a Competent Person)
- Should never be modified
- Should be taken out of service immediately if defective or exposed to an impact
- Slide 122
Harness Fitting
- Chest strap tightened at mid chest
- “D” ring between shoulder blades
- Proper snugness shoulder to hips
- Leg straps snug but not binding
- Butt strap supports the load
- Harness must be sized for the worker
- Slide 123
Proper Adjustment Is Key
- “Rules of Thumb”
- Be able to reach your D-ring with your thumb
- Maximum Four (flat)
- Fingers of Slack at the legs, straps as high as comfortably possible
- Ensure chest strap is across the chest/breastbone
- Have a buddy double check for twists, etc…
- Slide 124
Harness Pressure Points
- Spread load across butt strap and belt strap if on the harness
- Excess pressure here can cut blood flow to the legs
- Some studies have indicated permanent damage to the lower extremities when the worker hangs for more than twenty (20) minutes
- Slide 125
Connectors (Lanyards)
- Should be inspected before each use
- Should not be tied back to themselves (unless specifically designed for such use)
- Should be worn with the impact absorber/shock pack at the d-ring
- Should have the appropriate clip for the intended anchorage points
- Do not use large climbing/rebar/ladder hooks with “beamers”
- Slide 126
Retractable
- Lifelines
- Very effective for vertical applications.
- Will normally lock up in 1 –2 feet, minimizing total fall distance and impact forces on the worker’s body
- Slide 127
Do Not Hook Lanyards to Retractables!
- This worker is hooked to a retractable lifeline with his lanyard.
- This can cause hook failures and affect the locking capability of the retractable.
- The retractable should be attached directly to the “D” ring.
- Slide 128
Positioning Systems
- Positioning Devices Provide Hands-free Work
- Additional Fall Protection (tie-off) may be required to move or access
- Slide 129
Positioning
- Slide 130
Restraint Devices
- Provide Access but Prevent the Fall
- Limit anchorage requirement to 3000#
- May be more suitable for loading areas, scaffold erection and dismantling
- Should be installed and used under the supervision of a Competent Person
- Slide 131
Fall Restraint
- Restraint Line
- Edge
- Fall restraint assumes the employee cannot reach the edge.
- He is basically on a short leash.
- If the employee could reach to the edge and fall over the edge, he must be in fall arrest.
- Slide 132
Use of Restraint Cables
- Example of restraint cables used during deck anchoring.
- RESTRAINT CABLE
- Slide 133
Will This Work?
- Slide 134
Use of Safety Nets
- Assumes the fall will occur
- Assumes adequacy of the system (or requires testing)
- Slide 135
Nets
- Slide 136
Skyweb
- Slide 137
Planning For Rescue
- Worst-case Scenario?
- Slide 138
When All Works!
- Slide 139
Rescue Plan Put Into Motion
- Slide 140
Safe
- Slide 141
On The Ground And Still Alive!
- Slide 142
Training
- Define “Adequate”
- Slide 143
Training
- By a “qualified” or “competent” person
- The nature of hazards
- Appropriate systems and use
- Limitations
- Evaluated
- Re-training
- Documentation/Certification?
- Slide 144
Classroom
- Slide 145
Hands-on
- Slide 146
Site Specific
- Slide 147
Planning for Fall Protection
- Best practice dictates that fall protection becomes an integral part of the project planning process, from constructability, to systems installation, to use and maintenance
- A project cannot be truly safe unless fall protection is incorporated into every phase of the construction process
- Planning will keep workers safe and minimize liability for all parties involved
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