6..Scaffolding_8ff89334-6060-4f89-816a-1b85d14313a1.pptx

Scaffolding, also called scaffold or staging, is a
temporary structure used to support a work
crew and materials to aid in the construction,
maintenance and repair of buildings, bridges
and all other man-made structures.

1. SCAFFOLDING

2. Scaffolds Temporary elevated platform made for safety working at height Estimation says that 2.3 million construction worker deals with scaffolding each year. More than 10,000 workers are injured 80 are killed in scaffolding related accidents

3. Types of scaffolds Frame scaffolding Tube and clamp scaffolding Modular system scaffolding Rolling scaffolding Suspended scaffolding

4. Frame scaffolding

5. Tube and Clamp

6. Modular System Scaffolding

7. Rolling scaffolding (Mobile Scaffolding)

8. Suspended Scaffolding

9. Common Parts of Scaffold Sole Board/Sills Base Plate Standard / Post Ledger Brace Transom Coupler Working Platform Guard Rails Access Ladder

10. Sole Board / Sills Silver oak wooden base plate To distribute load 300X300X6mm For soft ground – Large size

11. Base Plate Small metal plate Used to spread load Size : 150 mm X 150 mm X 6 mm

12. Standard / Post It is vertical scaffold tube Sprit level is used It carries whole weight Distance separation 2m

13. Ledger It is horizontal scaffold tube Vertical distance between two ledger 1.8m First ledger near to ground should be 150mm Overhand pipe range : 50 m to 150 mm

14. Brace T ube placed to the vertical and horizontal members (diagonal) To give strong support and stability

15. Transom Tubes fixed at right angle across the ledgers, adjacent to each pair of standards to support the scaffold boards Place inside the standard and over the ledger Only fixed clamp is used Distance separation : 1.5 m Overhand pipe range : 50 m to 150 mm

16. Coupler A device for locking together components parts of tube and coupler scaffold

17. Right Angle Coupler A class load – 610 Kg B class load – 910 Kg Used to join 90 degree

18. Swivel coupler Join any pipe in any degree

19. Sleeve coupler

20. Plank Coupler

21. Putlog coupler

22. Beam Clamp Coupler

23. Ladder clamp coupler

24. Working Platform

25. Guard Rails

26. Hazards - Scaffolding Fall from scaffold during erection Fall from working platform Electrocution from overhead power lines Falling object Scaffold collapse

27. Cause of scaffold collapse Over load work platform Soft ground Not tied properly Brazing insufficient High wind Incorrect coupler Scaffold erected by incompetent workers Scaffold not inspected prior to use

28. Safety Arrangements Use appropriate scaffold construction method Proper inspection Trained and certified worker Not exceed safe load Erection on a level ground 10 feet safe distance from power line Proper fall protection system

29. Scaffold Fall Protection System Guard rail Top rail Mid rail Toe board Training Barrication Full body harness Safety nets Safety monitoring PFAS – Personal Fall Arrest system

30. Scaffold Fall Protection System Full body harness

31. Parts of Harness

32. SAFETY NETS

33. Guard Rails

34. Scaffold Inspection Check List Check for missing planks on platform Check for missing guard rail system Check for proper access Check for house keeping on scaffold platform Check for proper tying of building

35. SCAFF TAG SYSTEM Red Tag – Don’t Use Green Tag – OK to use Yellow Tag – Check with supervisor If there is NO SCAFF TAG - DON’T USE the scaffold

36. Ladder Safety Use only approved ladders Inspect before use One person only Use fall arrester if working at more than 6 ft. Extend 3 feet above access or working level Use 3 point contact

37. Safe Ladder Placing Ladder should be set an angle of about 75 degrees One meter for every four meter rise

38. Monkey Ladder

39. Step Ladder