*Australian Standard As1657
*Australian Standard As 1657
Australian Standards The FTF Handrailing System meets the following Australian Standard AS1657-1992 for “Fixed platforms, walkways, stairways and ladders”. The FTF Grating System meets the following Australian Standard AS1657-1992 for “Fixed platforms, walkways, stairways and ladders”. Global Standards. It investigated how aspects of the draft revised AS1657 standard affects various body types from an ergonomic perspective. The importance of Australian Standards Australian workplace health and safety law demands workplaces do whatever is “reasonably practicable” to control hazards. Australian Standards are regarded as evidence of what is. Australian Standards The FTF Handrailing System meets the following Australian Standard AS1657-1992 for “Fixed platforms, walkways, stairways and ladders”. The FTF Grating System meets the following Australian Standard AS1657-1992 for “Fixed platforms, walkways, stairways and ladders”. Global Standards. Australian Standard Fixed platforms, walkways, stairways and ladders — Design, construction and installation First published as AS CA10-1938. Second edition 1963. Third edition 1966. Fourth edition 1971. Revised and redesignated AS 1657-1974. Second edition 1985. Third edition 1992. PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF.
STAIRWAY ANGLES
The angle of the stairs slope to the horizontal is 20° to 45°, but it is recommended to have the range between 30° and 38°.
STAIRWAY CLEARANCES
Stairways shall be ≥ 600mm wide inside the stiles and it is to have a minimum clearance of 550mm between rails.
For stair landing; the width of the landing shall not be less than the stairway width and a minimum of 600 mm clear of cross-traffic, door swing or any other structure.
Minimum headroom is typically 2000 mm, this may need to be increased if helmets are worn. In applications where the minimum headroom cannot be achieved, other measures should be taken, Such as signage, padding and highlighting. Australian Standard As1657
FLIGHTS AND LANDINGS
The maximum of 18 risers in a flight. Adjacent flights shall be connected using a landing.
Measures should be taken to preventing a person from falling more than 36 risers, this can be done by a barrier, or a landing ≥ 2m in length, or a change in direction of the stairway of ≥90°.
The tread shall extend across the full width of the stairway and the tread surface shall be slip-resistant. The nosing shall be such that the edge of the tread is clearly visible against the background.
RISERS, GOINGS AND TREADS DIMENSIONS
Riser Min-130mm/Max 225mm
Going Min-215mm/Max 355mm
Slope (2R+G) Min-540mm/Max 700mm.
The tread depth (TD) is to be ≥ 185mm and it should not be more than 30 mm shorter than the going (G).
All risers and all goings in the same flight of stairs shall be of uniform dimensions within a tolerance of ±5 mm.
STAIRWAYS GUARDRAIL AND HANDRAILS
Except where there is a fixed structure within 100 mm of the stairway stile, stairways and stairway landings shall be provided with guardrailing on any exposed side.
Every stairway shall have at least one handrail and a handrail on each side for stairway wider than 1000mm.(refer: to handrails and guardrails for details).
STAIRS LOADING
Stairs Landing shall have a minimum live loading of 2.5 kPa and minimum point loading of 1.1 kN applied on 100mm × 100mm pad.
Treads shall have a minimum live loading of 2.5 kPa, or a 2.2 kN per linear metre or minimum point loading of 1.5 kN applied on 100mm ×100 mm pad on each step, whichever loading produces the more adverse effect.
Australian Standard As 1657
The maximum deflection shall be L/100 or 40mm, whichever is the lesser, over the horizontal span (L) of the stairway between supports.
If the stairs are likely to be loaded in excess of the above requirements, refer to AS/NZS 1170.1.
Stairs built to AS1657 and AS1428 require careful study to stringent compliance tests. Online tests are available to test your knowledge.
Unless the detailer is competent with these standards there is good chance that the handrail, balustrade or stair may not comply to the required standard. We always check against the standards, because frequently with the time constraints the architects etc are unable check against all requirements.
Please check out our online test, which all our detailers must pass before they are allowed to detail any stair.
With glass balustrades, the selection of patch fittings, the glass specification, position of the patch fittings on the glass etc is critical from structural point of view.
Would you like to take our online test?
*Follow the link: http://tek1engineeringservices.com/onlinetests/course/index.php?categoryid=5
*Click on the relevant course. Enjoy!
Contact us for your detailing requirements.
