construction safety - part 4 (stairways)
TRANSCRIPT
-
7/27/2019 Construction Safety - Part 4 (Stairways)
1/12
-
7/27/2019 Construction Safety - Part 4 (Stairways)
2/12
There must be a stairway or ladder at points of access
where the elevation break is 48 cm (19 in) or more.
48 cm
Break in elevation
Stairway or Ladder
-
7/27/2019 Construction Safety - Part 4 (Stairways)
3/12
Stair should carry
490 kg/sq. m load
with FS = 4.
Rails must be able
to withstand a forceof 100 kg from any
directions.
Stair Capacity and
Top Rail Strength
-
7/27/2019 Construction Safety - Part 4 (Stairways)
4/12
-
7/27/2019 Construction Safety - Part 4 (Stairways)
5/12
Can be pitched up to
60 degrees with tread
not less than 15 cm.
Must have uniform
riser height and tread
Service Stairs for Construction
-
7/27/2019 Construction Safety - Part 4 (Stairways)
6/12
Stairways landings must
be provided at every 3.6
m height.
Do not store materials
on stairways used for
general access.
Stairway Landings
Landing
-
7/27/2019 Construction Safety - Part 4 (Stairways)
7/12
Dangerous Conditions
Fix slippery conditionsbefore using.
Stairway parts must be
free of protruding nails,or any projections
which may cause
injuries or snag
clothing.
-
7/27/2019 Construction Safety - Part 4 (Stairways)
8/12
Keep in good condition.Ensure rungs are uniformly fixedInspect ladders before useSecure ladders to prevent from slipping
Ensure it is on stable and level groundKeep ladders free from slipping hazardsUse ladders only for their designedpurpose
General Ladder Requirements
-
7/27/2019 Construction Safety - Part 4 (Stairways)
9/12
Ladder Angle
Non-self-supporting
ladders:
(lean against a support)
Position at an angle
where the horizontal
distance is 1/4 the
vertical height
-
7/27/2019 Construction Safety - Part 4 (Stairways)
10/12
Side rails must
extend at least
90 cm (3 feet)
above the upper
landing.
Ladder Rail Extension
-
7/27/2019 Construction Safety - Part 4 (Stairways)
11/12
A competent personmust inspect laddersfor any defect, likebroken or missingrungs
When defective ladderis found, mark itdefective or tag it "DoNot Use
Damaged or Defective Ladders
Missingrung
-
7/27/2019 Construction Safety - Part 4 (Stairways)
12/12
Face the ladder whengoing up or down
Maintain three pointsof contact whenclimbing a ladder
Climbing the Ladder