C permanent stairways shall comply with the applicable provisions of the general industry safety orders.
Scaffold stair tower regulations.
Tg20 13 provides compliant scaffolds for a limited range of cantilever scaffolds loading bays static towers use of rakers bridges and protection fans.
Stair towers have standard layouts of 10 12 or 16 legs.
When scaffold platforms are more than 2 feet 0 6 m above or below a point of access portable ladders hook on ladders attachable ladders stair towers scaffold stairways towers stairway type ladders such as ladder stands ramps walkways integral prefabricated scaffold access or direct access from another scaffold structure.
Consequently scaffold stairs which meet all the requirements of subpart x may be used for temporary access to upper floors while constructing multistory buildings.
All layher stairs meet u s.
Uses standard layher components.
Back to reference of note 1 tg20 13 provides a range of compliant scaffolds which can be boarded at any number of lifts but only two platforms can be used as working platforms at any one time.
Pictured is a typical stretcher double stair access tower with a top landing height of 12 metres.
They are available in 2 0m 1 5m and 1 0m rises.
Prefabricated scaffold steps or stairs manufactured on or before may 28 2005 shall comply with the design manufacture and installation requirements of either the american national standard ansi a10 8 1988 scaffolding safety requirements or the ansi asse a10 8 2001 safety.
The scaffold stair towers are the most common and safest method of obtaining access to scaffold units and should be included within this subpart.
In particular one commenter ex.
Stair tower scaffold stairway tower means a tower.
Whether subpart l or subpart x requirements apply to scaffold stair towers used for access to multistory buildings.
The agency s recent rule safety standards for scaffolds use in the construction industry rule aims to protect workers using scaffolding in construction work.
Erection and dismantling the manufacturer supplier or hirer has a duty to provide an instruction manual explaining the erection sequence including any bracing requirements.
Misuse of the scaffold where a ladder is used on a tower causing it to overturn or when a person falls while the tower is being moved.
I have inside and or outside handrails.
This is in response to your april 30 1999 fax asking for clarification of osha s policy regarding the use of scaffold stair towers for access to upper floors during construction of multistory buildings.
2 368 suggested that osha insert a new paragraph 1926 451 c 5 as follows.
Scaffolding hazards continue to rank high on the list of the most frequently cited standards in the construction industry.
Comfort stairs used to configure a landing type stair tower for allround or speedyscaf scaffold constructions.