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  2. Cantilevered stairs - Wikipedia

    en.wikipedia.org/wiki/Cantilevered_stairs

    Cantilevered stairs, or floating stairs, are a type of staircase. A metal safety rail has been added to the outside of this cantilevered stone staircase. A cantilever is a beam , which is anchored at only one end.

  3. Stair nosing - Wikipedia

    en.wikipedia.org/wiki/Stair_nosing

    The nosing is the protrusion beyond the riser when vertical risers are used, or beyond the back of the tread below, when angled risers or no risers are used. Anti-slip strips or nosings may be applied. These stair parts can be manufactured from a variety of materials including aluminum, vinyl, and wood.

  4. Stair tread - Wikipedia

    en.wikipedia.org/wiki/Stair_tread

    A stair tread is the horizontal portion of a set of stairs on which a person walks. The tread can be composed of wood, metal, plastic, or other materials. In residential settings, treads can be covered in carpeting. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. [1]

  5. A new “floatingstaircase in Norway promises spectacular views and undeniable thrills – but it’s probably not for the fainthearted. The 131-foot long stairway, called the “Stigull ...

  6. Stairs - Wikipedia

    en.wikipedia.org/wiki/Stairs

    Where there is insufficient space for the full run length of normal stairs, "alternating tread stairs" may be used (other names are "paddle stairs", "zig-zag stairs", or "double-riser stairs"). [ 16 ] : 19 Alternating tread stairs can be designed to allow for a safe forward-facing descent of very steep stairs (however, designs with recessed ...

  7. Vessel (structure) - Wikipedia

    en.wikipedia.org/wiki/Vessel_(structure)

    Vessel is a 16-story, 150-foot-tall (46 m) [1] structure of connected staircases among the buildings of Hudson Yards, located in the 5-acre (2.0 ha) Hudson Yards Public Square. [2] Designed by Thomas Heatherwick , [ 3 ] Vessel has 154 flights, 2,500 steps, and 80 landings, [ 3 ] with the total length of the stairs exceeding 1 mile (1.6 km). [ 4 ]

  8. Staircase paradox - Wikipedia

    en.wikipedia.org/wiki/Staircase_paradox

    In mathematical analysis, the staircase paradox is a pathological example showing that limits of curves do not necessarily preserve their length. [1] It consists of a sequence of "staircase" polygonal chains in a unit square , formed from horizontal and vertical line segments of decreasing length, so that these staircases converge uniformly to ...

  9. Pontoon bridge - Wikipedia

    en.wikipedia.org/wiki/Pontoon_bridge

    A treadway bridge was a multi-section, prefabricated floating steel bridge supported by pontoons carrying two metal tracks (or "tread ways") forming a roadway. Depending on its weight class, the treadway bridge was supported either by heavy inflatable pneumatic pontons or by aluminum-alloy half-pontons.

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