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An opening in the floor is considered a hole when it is more than 24 in. True False Stairway openings do not need fall protection. True False Railings.

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Presentation on theme: "An opening in the floor is considered a hole when it is more than 24 in. True False Stairway openings do not need fall protection. True False Railings."— Presentation transcript:

1 An opening in the floor is considered a hole when it is more than 24 in. True False Stairway openings do not need fall protection. True False Railings in Subpart D must withstand 800 lbs. thrust in any direction. True False The vertical posts of railings must be at 20 ft. centers. True False Fixed stairs must have a minimum width of 22 in. True False Subpart D Test Circle the appropriate answer and locate appropriate standard QuestionStandard (e)(3)(iv) (e)(3)(i) & (ii) & (iii) (a)(1) (a)(1) (d)

2 Part 1910 Subpart D - Walking- Working Surfaces Definitions General requirements Guarding floor and wall openings and holes Fixed industrial stairs Portable wood ladders Portable metal ladders Fixed ladders Safety requirements for scaffolding Manually propelled mobile ladder stands and scaffolds (towers) Other working surfaces.

3 Open sided Floors Housekeeping Stair rails - 93 Floor holes (c)(1) 22(a)(1) 24(h) 23(a)(8) Subpart D - Walking/Working Surfaces ( ) Number of Serious Violations - FY 98 Wet Floors (a)(1)

4 (a)(1) & (a)(2) - Floor hole vs floor opening

5 Floor Covering

6 (a)(1) Housekeeping

7 (a)(1) All places of employment, passageways, storerooms, service rooms shall be kept clean and orderly and in a sanitary condition.

8 Debris on floor

9 Housekeeping

10 (a)(2) - Floors Where wet processes are used, keep floors clean and dry as possible

11 (a)(3) - Protruding nails

12 (b) - Aisles and passageways (1) Safe clearances; clean and good repair; no obstacles in aisles where mechanical handling equipment is used. (2) Aisles and passageways shall be permanently marked

13 (d) - Floor loading protection (1) Loads approved by building official shall be marked.

14 (d) (continued) (1) Signs shall be marked & affixed in conspicuous place (2) Unlawful to overload

15 Guarding floor and wall openings and holes

16 Guard Rail System Top Rail Mid Rail Toe Board (a)- Protection for floor openings (1) Every stairway floor opening shall be guarded by a standard railing constructed in accordance with paragraph (e) of this section.

17

18 Types of materials

19 (a)(2) - Ladderway floor openings, platforms - Guarded by standard railing, toeboard

20 (a)(3) Hatchway/chute floor opening Guarded by hinged cover or removable railing/toeboard

21 (a)(4) Skylight floor opening Guarded by standard skylight screen/or fixed standard railing

22 Protected sky light

23 (a)(6) Manhole floor opening - Guarded by standard manhole cover

24 (a)(8) Floor hole opening - Guarded by standard railing/cover

25 (a)(8)(ii) - Floor hole opening

26 (b) - Wall openings/holes (1) Drop greater than 4’ shall be guarded

27 (c)(1) Open sided floors, platforms and runways

28 Work platform

29

30 Elevated runway Runway

31 Unguarded

32 Adequate platform guardrail

33

34 What’s the problem here? No toe board

35 What’s up with this???

36 (c)(3) Adjacent to dangerous equipment (regardless of height) - Guarded by standard railing with toeboard Open screw auger directly underneath

37 (d) Stairway railings and guards

38 (d)(1) Stairway railings and guards 4 or more risers require standard stair railings or handrails

39 (d)(1)(i) Stairways less than 44” wide - At least one handrail

40 (d)(1)(ii) Less than 44” wide with one open side - At least one railing on open side

41 (d)(1)(iii) Less than 44” wide with both open sides - Stair railing on each side

42 What’s wrong with this picture?

43 (e)(3)(iv) The anchoring of posts and framing of members for railings of all types - Capable of withstanding a load of at least 200 pounds applied in any direction at any point on the top rail.

44 Fixed Industrial Stairs

45 (c) Stair strength Must carry 5 times normal live load anticipated, but never less than 1000 pounds moving concentrated load

46 Table D-1 ___________________________________________________________________ | | Angle to horizontal | Rise (in inches) | Tread run (in inches) _________________________ |__________________|______________________ | | 30 deg. 35' | 6 1/2 | deg. 08' | 6 3/4 | 10 3/4 33 deg. 41' | 7 | 10 1/2 35 deg. 16' | 7 1/4 | 10 1/4 36 deg. 52' | 7 1/2 | deg. 29' | 7 3/4 | 9 3/4 40 deg. 08' | 8 | 9 1/2 41 deg. 44' | 8 1/4 | 9 1/4 43 deg. 22' | 8 1/2 | 9 45 deg. 00' | 8 3/4 | 8 3/4 46 deg. 38' | 9 | 8 1/2 48 deg. 16' | 9 1/4 | 8 1/4 49 deg. 54' | 9 1/2 | 8 __________________________|__________________|______________________ (d) Minimum Stair Width of 22” (e) Angle of Stairway Rise “Table D-1” Rise Tread Rise Tread 6 1/2” 11” 30 deg. angle 6 1/2” 11”

47 (h) Standard railing on open sides of all exposed stairways and stair platforms Hand rails provided on at least one side of closed stairways (i) Vertical clearance above stair tread to overhead obstruction - At least 7 feet


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