文档介绍：Stairways and Ladders
楼梯和梯子
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Hazards隐患
Stairways and ladders
建筑工人的许多受伤和不幸
cause many InJuries
常常是由楼梯
and fatalities among
和梯子引起的
construction workers
大约一半的伤
About half the injuries
害是由于滑倒、
caused by slips, trips
绊倒或者从梯
and falls from ladders
子上掉下来导
and stairways require
致的
time off the job
Improper use of the top
rung of a step ladder
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Slips, Trips and falls
On Stairways and Ladders
在梯子上滑倒、绊倒或落下
At the end of this
training, you should be
在本培训课结束后
able to list or describe
你应该能够列出或描
Safety guidelines and
用于施工现场的楼梯
requirements tor stairways的安全指导方针和基
used at a constru
site
本要求
用于施工现场的梯子
Safe practi
的安全实践和基本要
requirements for ladders
used at a construction
site
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Stairway or Ladder
楼梯或梯子
There must be a stairway or ladder at points of access
where there is an elevation break of 19 inches or more
高程变化大于或等于480毫米时必须使用梯子以便接近
At least one point of access must be kept clear.
通道至少应有一个点保持空旷
Break in elevation
19 inches
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Handrail vs. stairrail
扶手和楼梯扶手系统
Stairrail
Handrail
System
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Handrail and Top Rail Strength
扶手及顶部横杆强度
Rails must be able
to withstand a
force of 200
pounds
扶手必须能承受90公
斤以上的力
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Handrails扶手
Stairways with four or
more risers, or higher
than 30 inches, must
be equipped with at
least one handrail
楼梯多于或等于4个梯级
或高于760毫米,则至
少应在一边装有扶手
The stairway to this platform has more than 4 risers
and is not guarded. The platform requires guarding
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Stairrails楼梯扶手
Stairways with four or
more risers。 r more
than 30 inches high
must have a stairrail
along each unprotected
side or edge
楼梯多于或等于4个梯级
或高于760毫米,则未防
护的每一边都要装扶手
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Stairs楼梯
Install between 30
and 50 degrees.
安装角度应为3050度
Must have uniform
riser height and
tread depth, with
less than a 1/4-inch
No more than 1/4 inch
variation
varlation In any staIrway system
梯