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  2. Anti-slip grating - Wikipedia

    en.wikipedia.org/wiki/Anti-slip_grating

    Anti-slip steel grating is a type of bar grating.Steel bar grating is manufactured in a variety of methods. Welded bar grating consists of load bars electrically fuse welded to cross bars.

  3. Span (engineering) - Wikipedia

    en.wikipedia.org/wiki/Span_(engineering)

    In engineering, span is the distance between two adjacent structural supports (e.g., two piers) of a structural member (e.g., a beam). Span is measured in the horizontal direction either between the faces of the supports (clear span) or between the centers of the bearing surfaces (effective span): [1] A span can be closed by a solid beam or by ...

  4. Plate girder bridge - Wikipedia

    en.wikipedia.org/wiki/Plate_girder_bridge

    In the deck-type bridge, a wood, steel or reinforced concrete bridge deck is supported on top of two or more plate girders, and may act compositely with them. In the case of railroad bridges, the railroad ties themselves may form the bridge deck, or the deck may support ballast on which the track is laid.

  5. Linkspan - Wikipedia

    en.wikipedia.org/wiki/Linkspan

    Around fifty of this type of linkspan have been built. The design allowed flexibility for ship-owners and ports during the changeover from the old very restricting system. With the development of wider ship's ramps (up to 28 m or 92 ft), triple lane lower deck and two lane upper-deck accesses to vessels, the submerged tank type has been superseded.

  6. Double tee - Wikipedia

    en.wikipedia.org/wiki/Double_tee

    The load tables use the code to identify double tee span type by using the width in feet, followed by "DT", followed by depth in inches, for example, 4DT14 is for 4-foot (1.2 m) wide, 14-inch (36 cm) deep double tees. In its first publication there were seven double tee types from 4DT14 to 10DT32.

  7. Deck (bridge) - Wikipedia

    en.wikipedia.org/wiki/Deck_(bridge)

    A grid deck uses beams and diaphragms as the supporting structure. The supporting system of a grid deck is analyzed using a grillage analysis. A slab deck is one where the deck is analyzed as a plate. If the slab has a stiffness that is different in two directions (at right angles), then the deck is known and analyzed as an orthotropic deck.

  8. Orthotropic deck - Wikipedia

    en.wikipedia.org/wiki/Orthotropic_deck

    From 1982 to 1986, the original bridge deck, in 747 sections, was replaced with lighter, stronger orthotropic steel deck panels over 401 nights without closing the roadway completely to traffic. [5] The project not only restored the bridge to prime condition but also reduced the deck weight by 12,300 tons (11,160 metric tons).

  9. Timeline of three longest supported deck arch bridge spans

    en.wikipedia.org/wiki/Timeline_of_three_longest...

    New River Gorge Bridge has the longest free span of all deck arch bridges: 518 m. This is the timeline of the 3 longest supported deck arch bridge spans in the world, where the road deck lies on top of the arch. The deck is supported by columns, truss, rubble or lies directly on the arch. These bridges are often found in narrow valleys.

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