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SCAFFOLDING SAFETY.ppt
- 1. 29 CFR 1910.28 29CFR 1926.452 21/3/2023 1 SCAFFOLDING SAFETY
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- 3. Topics to be discussed…. 21/3/2023 3 ScaffoldDesign Requirements Scaffold Erection Requirements Scaffold Alteration Requirements Scaffold Dismantling Requirements Safe Usage of Scaffolding Tagging System Scaffolding Inspection Checklist Scaffolding Permit
- 4. What is Scaffolding? 21/3/2023 4 Scaffoldis an elevated temporary work platform used for supporting workers (or) materials (or) both.
- 5. Parts of Scaffolding 21/3/2023 5 1. Standard 2.Ledger 3. Transom 4. Cross Bracing 5. Top Rail 6. Mid Rail 7. Toe Board 8. Brick Guard 9. Base Plate & Sole Plate
- 6. 21/3/2023 6 Basic Parts ofScaffolding
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- 8. Top Rail, MidRail & Toe Board 21/3/2023 8
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- 12. Scaffolding 21/3/2023 12 • There arethree 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
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- 14. Scaffolds 21/3/2023 14 Supported scaffolds consistof one or more platforms supported by outrigger beams, brackets, poles, legs, posts, frames, or similar rigid support. 1. Frame (or) Fabricated Scaffold 2. Mobile Scaffold 3. Ladder Jack Scaffold 4. Pump Jack Scaffold 5. Tube & Coupler Scaffold 6. Pole Scaffold
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- 16. Mobile Scaffold Braced toprevent 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. 21/3/2023 16
- 17. Suspended Scaffolds 21/3/2023 17 • Single Point •Two Point • Multi Point • Catenary • Interior Hung • Needle Beam • Multi Level • Float
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- 20. Suspended Scaffold Safety Counterweights secured,and not removed until scaffold disassembled Tiebacks secured to sound anchorage on 21/3/2023 20
- 21. Other Scaffolds –Aerial Lift 21/3/2023 21
- 22. Aerial Lift Ensureproper 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) 21/3/2023 22
- 23. Scaffold Competent Person 21/3/2023 23 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
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- 25. Red Tag…. 21/3/2023 25 Indicates the scaffoldhas not been inspected or is not safe for use “DO NOT USE SCAFFOLD” message must be visible
- 26. Green Tag…. 21/3/2023 26 Indicates scaffold iscomplete, has been inspected, and is safe for use at the time of inspection GREEN scaffold tag valid for a maximum of two weeks 2/28/02 2/14/02 A. SULAIMAN 673-2400 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 3/28/02 A. SULAIMAN 673-2400 A. SULAIMAN 673-2400 A. SULAIMAN 673-2400 6 TANK 105 a 233100 Ahmed Sulaiman 233100 Ahmed Sulaiman 233100 Ahmed Sulaiman 2 233100 Ahmed Sulaiman Insert fits into holder
- 27. Yellow Tag…. 21/3/2023 27 Indicates scaffold hasbeen 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 2 4/10/02 A. SULAIMAN K. SALEH Khaled Saleh 673-2308 431056 6 TANK 105 a 233100 Ahmed Sulaiman 673-2400 Insert fits into holder
- 28. Displaying of Tag…. 21/3/2023 28 REDscaffold tag (holder) to be built into scaffold, near each point of access, by scaffold craftsmen Only qualified scaffold craftsmen are allowed on a scaffold with a RED scaffold tag
- 29. 21/3/2023 29 If Scaffold EQUALTO 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 Supervisor inserts the signed GREEN or YELLOW tag(s) into the RED holder(s) “Date of next inspection” must not be more than 2 weeks ahead
- 30. 21/3/2023 30 If Scaffold MORETHAN 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 Supervisors MUST BE CERTIFIED
- 31. 21/3/2023 31 Scaffold Inspector inspects scaffold Assoon as possible after Scaffold Supervisor’s inspection 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 If Scaffold MORE THAN 6 meters (20 feet) tall:
- 32. 21/3/2023 32 If Scaffold Inspectoragrees 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 If Scaffold MORE THAN 6 meters (20 feet) tall:
- 33. Scaffold Erection Requirement 21/3/2023 33 Onlycompetent & 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.
- 34. Scaffold Erection Requirement 21/3/2023 34 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
- 35. Top Rail, MidRail & Toe Board 21/3/2023 35
- 36. Scaffold Erection Requirement 21/3/2023 36 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.
- 37. Scaffold Erection Requirement 21/3/2023 37 Shouldbe 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
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- 39. Scaffold Erection Requirement 21/3/2023 39 •Must be able to support its own weight and 4 times the maximum intended load. • Scaffolds must be designed by a qualified person.
- 40. Scaffold Erection Requirement 21/3/2023 40 Anyscaffold damaged or weakened from any cause shall be immediately repaired and shall not be used until repairs have been completed.
- 41. Planking 21/3/2023 41 All planking orplatforms 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.
- 42. Platform Construction 21/3/2023 42 No painton 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.
- 43. Tips Never use scaffolds that donot have proper guardrails installed 21/3/2023 43
- 44. Common Scaffold Safety Tips Mustbear on adequate foundations Unstable objects will not be used as working platforms 21/3/2023 44
- 45. Common Scaffold Safety Tips Lifeline support mustbe checked for compatibility prior to use. 21/3/2023 45
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- 47. Access Must have safe access Cross-braces prohibitedas means of access Rest platforms required at 35 feet intervals Slip-resistant on all steps and landings 21/3/2023 47
- 48. PFAS Workers mustbe trained how to properly use PFAS. PFAS include anchorage, lifeline and full body harness with double lanyard. Both Active & 21/3/2023 48
- 49. 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 21/3/2023 49
- 50. Over Head PowerLines Proper clearance near overhead lines Keep 10 foot minimum unless de- energized, Relocated, or installed protective covering installed! 21/3/2023 50
- 51. Restrictions No work on snow,or ice covered platforms No barrels, boxes or ladders on top of scaffolds 21/3/2023 51
- 52. Training Required Employeesmust receive training from qualified person that covers: Nature of hazards, electrical, falls, and falling items Use of scaffold / handling Maximum intended load and load carrying capabilities of scaffold Procedures for setup, dismantling or moving the system 21/3/2023 52
- 53. Follow themanufacturer's instructions when erecting the scaffold. Do not work on scaffolds outside during stormy or windy weather. Do not climb on scaffolds that wobble or lean to one side. Initially inspect the scaffold prior to mounting it. Do not use a scaffold if any pulley, block, hook or fitting is visibly worn, cracked, rusted or otherwise damaged. Do not use any scaffold tagged "Out of Service". Do not work on platforms or scaffolds unless they are fully planked. In General…. 21/3/2023 53
- 54. In General…. Donot walk or work beneath a scaffold unless a wire mesh has been installed between the top rail and the toe board or planking. Use your safety belts and lanyards when working on scaffolding at a height. Attach the lanyard to a secure member of the scaffold. Do not climb the cross braces for access to the scaffold. Use the ladder. Do not jump from, to, or between scaffolding. Do not move a mobile scaffold if anyone is on the scaffold. Chock the wheels of the rolling scaffold, using the wheel blocks, and also lock the wheels by using your foot to depress the wheel-lock, before using the scaffold.21/3/2023 54
- 55. Resources 21/3/2023 55 http://www.osha.gov/SLTC/etools/scaffolding/ind ex.html http://www.osha.gov/pls/oshaweb/owadisp.show _document?p_table=STANDARDS&p_id=9720 http://www.hse.gov.uk/construction/safetytopics/ scaffoldinginfo.htm Scaffold Safety Hand book – Saudi Aramco