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SCAFFOLDING SAFETY

SCAFFOLDING SAFETY. 29 CFR 1910.28 29 CFR 1926.452. Topics to be discussed…. Scaffold Design Requirements Scaffold Erection Requirements Scaffold Alteration Requirements Scaffold Dismantling Requirements Safe Usage of Scaffolding Tagging System Scaffolding Inspection Checklist

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SCAFFOLDING SAFETY

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  1. SCAFFOLDING SAFETY 29 CFR 1910.28 29 CFR 1926.452

  2. Topics to be discussed…. • Scaffold Design Requirements • Scaffold Erection Requirements • Scaffold Alteration Requirements • Scaffold Dismantling Requirements • Safe Usage of Scaffolding • Tagging System • Scaffolding Inspection Checklist • Scaffolding Permit

  3. What is Scaffolding? Scaffold is an elevated temporary work platform used for supporting workers (or) materials (or) both.

  4. Parts of Scaffolding • Standard • Ledger • Transom • Cross Bracing • Top Rail • Mid Rail • Toe Board • Brick Guard • Base Plate & Sole Plate

  5. Basic Parts of Scaffolding

  6. Top Rail, Mid Rail & Toe Board

  7. Brick Guard

  8. Cross Bracing

  9. Base Plate

  10. Types of Scaffolding • There are three basic types of scaffolds: Supported scaffolds, which consist of one or more platforms supported by rigid, load- bearing members, such as poles, legs, frames, outriggers, etc. • Suspended scaffolds, which are one or more platforms suspended by ropes or other non-rigid, overhead support. • Other scaffolds, principally man lifts, personnel hoists, etc., which are sometimes thought of as vehicles or machinery, but can be regarded as another type of supported scaffold.

  11. Supported Scaffolds Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, posts, frames, or similar rigid support. • Frame (or) Fabricated Scaffold • Mobile Scaffold • Ladder Jack Scaffold • Pump Jack Scaffold • Tube & Coupler Scaffold • Pole Scaffold

  12. Frame (or) Fabricated Mobile

  13. Mobile Scaffold • Braced to prevent collapse. • Casters and wheels locked to prevent movement while in a stationary position. • Platforms must not extend beyond the base supports of the scaffold, unless stability is ensured. • Not allowed to ride on scaffolds unless the surface on which scaffold is being moved is free of pits, holes and obstructions.

  14. Suspended Scaffolds • Single Point • Two Point • Multi Point • Catenary • Interior Hung • Needle Beam • Multi Level • Float

  15. Single Point Two point

  16. Multi Point Catenary

  17. Suspended Scaffold Safety • Counterweights secured, and not removed until scaffold disassembled • Tiebacks secured to sound anchorage on the building or structure

  18. Other Scaffolds – Aerial Lift

  19. Aerial Lift • Ensure proper fall protection prior to using • Includes use of guardrails • Never exceed load capacity • Do not move lift truck with workers in basket unless adequately designed (upper controls – personnel carriers) • Brakes set for outrigger use (wheels chocked)

  20. Scaffold Competent Person • Inspect scaffolding and components prior to each work shift • Determine possibility of providing fall protection and access • Evaluate connections to support load • Determine structural soundness • Train erectors and dismantlers to recognize work hazards

  21. Scaffold Tagging System

  22. “DO NOT USESCAFFOLD” message must be visible Red Tag…. Indicates the scaffold has not been inspected or is not safe for use

  23. TANK 105 a 6 2 A. SULAIMAN A. SULAIMAN A. SULAIMAN A. SULAIMAN Ahmed Sulaiman 673-2400 673-2400 673-2400 673-2400 Ahmed Sulaiman 233100 Ahmed Sulaiman Ahmed Sulaiman 233100 233100 233100 K. SALEH Khaled Saleh 673-2308 431056 K. SALEH Khaled Saleh 673-2308 431056 K. SALEH Khaled Saleh 673-2308 431056 K. SALEH Khaled Saleh 673-2308 431056 3/14/02 2/14/02 2/28/02 3/28/02 Insert fits into holder Green Tag…. Indicates scaffold is complete, has been inspected, and is safe for use at the time of inspection GREEN scaffold tag valid for a maximum of two weeks

  24. TANK 105 a 6 2 K. SALEH Khaled Saleh 673-2308 431056 A. SULAIMAN Ahmed Sulaiman 673-2400 233100 4/10/02 Insert fits into holder Indicates scaffold has been inspected and may be used only by workers wearing a properly anchored personal fall arrest system, including a full body harness and lanyard YELLOW scaffold tag valid for two weeks maximum Yellow Tag….

  25. Only qualified scaffold craftsmen are allowed on a scaffold with a RED scaffold tag Displaying of Tag…. RED scaffold tag (holder) to be built into scaffold, near each point of access, by scaffold craftsmen

  26. If Scaffold EQUAL TO or LESS THAN 6 meters (20 feet) high: Scaffold Supervisor signs GREEN or YELLOW scaffold tag(s) and prints date when next inspection is due “Date of next inspection” must not be more than 2 weeks ahead Supervisor inserts the signed GREEN or YELLOW tag(s) into the RED holder(s)

  27. If Scaffold MORE THAN 6 meters (20 feet) tall: Scaffold Supervisor signs tag(s) and leaves “Date of Next Inspection” blank Supervisor gives the signed GREEN or YELLOW tag(s) to a Scaffold Inspector • All Scaffold Inspectors and Scaffold SupervisorsMUST BE CERTIFIED

  28. If Scaffold MORE THAN 6 meters (20 feet) tall: As soon as possible after Scaffold Supervisor’s inspection Scaffold Inspector inspects scaffold Scaffold Inspector also fills in and signs separate “Scaffold Field Inspection Checklist” Inspector gives this checklist to Work Permit Issuer’s unit, who will keep it until scaffold is taken down

  29. If Scaffold MORE THAN 6 meters (20 feet) tall: If Scaffold Inspector agrees that scaffold is safe to use, he will: • Fill in and sign GREEN or YELLOW scaffold tag(s) • Previously given to him by Scaffold Supervisor

  30. Scaffold Erection Requirement • Only competent & experienced person must be permitted to erect & dismantle the scaffolding at site. • Guardrails, mid rails & toe boards must be placed on all open side of platforms more than 1.2 meters above ground (or) floor.

  31. Scaffold Erection Requirement • The top rail must be placed approximately 1200 mm high from the platform. • The mid rail must be placed approximately 600 mm high from the platform. • The toe board must be placed approximately 300 mm from the platform.

  32. Top Rail, Mid Rail & Toe Board

  33. Scaffold Erection Requirement • All scaffolds shall be provided with an access ladder that extends to at least 1 meter above the platform. • Platforms should be 220mm wide & 25mm thick and it should be tightened with scaffolding to prevent movements in high winds. • Scaffolds should be cleaned after the completion of work.

  34. Scaffold Erection Requirement • Should be on a firm foundation with base plates. • Should be properly braced & tied up. • Should have a properly tightened platform. • Should have guardrails over 1.2 meters. • Should have adequate means of ingress & egress.

  35. Ladder Safety

  36. Scaffold Erection Requirement • Must be able to support its own weight and 4 times the maximum intended load. • Scaffolds must be designed by a qualified person.

  37. Scaffold Erection Requirement • Any scaffold damaged or weakened from any cause shall be immediately repaired and shall not be used until repairs have been completed.

  38. Planking • All planking or platforms shall be overlapped (minimum 12 inches) or secured from movement. • Scaffold planks shall extend over their end supports not less than 6 inches nor more than 18 inches.

  39. Platform Construction • No paint on wood platforms, except edges that may be marked for identification. • Fully planked. • No mixed components, unless compatible and integrity maintained. • No modification of mixed components unless approved by competent person.

  40. Common Scaffold Safety Tips • Never use scaffolds that do not have proper guardrails installed

  41. Common Scaffold Safety Tips • Must bear on adequate foundations • Unstable objects will not be used as working platforms

  42. Common Scaffold Safety Tips • Lifeline support must be checked for compatibility prior to use.

  43. Life Line LIFE LINE

  44. Access • Must have safe access • Cross-braces prohibited as means of access • Rest platforms required at 35 feet intervals • Slip-resistant on all steps and landings

  45. PFAS • Workers must be trained how to properly use PFAS. • PFAS include anchorage, lifeline and full body harness with double lanyard. • Both Active & Passive Fall Protection.

  46. Restrictions • Don’t overloaded. • Don’t Erect & move near power lines . • Repair damaged components. • Restrict horizontal movement of workers unless provided with fall protection. • Prohibit work activities during high winds unless authorized. • Remove whole scaffold from service until repaired. Note – Scaffolds must be erected 10 feet away of the overhead power line with 300 volts to 50KV.

  47. Over Head Power Lines Proper clearance near overhead lines Keep 10 foot minimum unless de-energized, Relocated, or installed protective covering installed!

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