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  2. 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 ).

  3. List of longest cable-stayed bridge spans - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_cable...

    The definition of cable-stayed bridge deck length used here is: A continuous part of the bridge deck that is supported only by stay-cables and pylons, or are free spans. This means that columns supporting the side span as for example found in Pont de Normandie , excludes most of the side span decks from the cable-stayed deck length.

  4. 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 ...

  5. Plate girder bridge - Wikipedia

    en.wikipedia.org/wiki/Plate_girder_bridge

    In a plate girder bridge, the plate girders are typically I-beams made up from separate structural steel plates (rather than rolled as a single cross-section), which are welded or, in older bridges, bolted or riveted together to form the vertical web and horizontal flanges of the beam. In some cases, the plate girders may be formed in a Z-shape ...

  6. Deck (bridge) - Wikipedia

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

    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. A beam and slab deck is one where the beams may deflect somewhat independently, and any transverse forces are carried in the deck. A cellular ...

  7. Double tee - Wikipedia

    en.wikipedia.org/wiki/Double_tee

    The strong bond of the flange (horizontal section) and the two webs (vertical members, also known as stems) creates a structure that is capable of withstanding high loads while having a long span. The typical sizes of double tees are up to 15 feet (4.6 m) for flange width, up to 5 feet (1.5 m) for web depth, and up to 80 feet (24 m) or more for ...

  8. Dalmatic - Wikipedia

    en.wikipedia.org/wiki/Dalmatic

    Traditionally the dalmatic was not used in the Roman Rite by deacons during Lent. In its place, depending on the point in the liturgy, was worn either a folded chasuble or what was called a broad stole, which represented a rolled-up chasuble. This tradition went back to a time at which the dalmatic was still considered an essential secular ...

  9. Longitudinal framing - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_framing

    Longitudinal framing (also called the Isherwood system after British naval architect Sir Joseph Isherwood, who patented it in 1906) is a method of ship construction in which large, widely spaced transverse frames are used in conjunction with light, closely spaced longitudinal members.

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