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  2. Caisson (engineering) - Wikipedia

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

    Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.

  3. Screw piles - Wikipedia

    en.wikipedia.org/wiki/Screw_piles

    Large load capacity screw piles may have various components such as flat half helices, Bisalloy cutting tips and helices, cap plates or rebar interfaces for connection to various concrete or steel structures. Most industries use screw piling experts due to the cost efficiencies and, increasingly, the reduced environmental impact.

  4. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    Pre-tensioned concrete is a variant of prestressed concrete where the tendons are tensioned prior to the concrete being cast. [1]: 25 The concrete bonds to the tendons as it cures, following which the end-anchoring of the tendons is released, and the tendon tension forces are transferred to the concrete as compression by static friction.

  5. Rigid-frame bridge - Wikipedia

    en.wikipedia.org/wiki/Rigid-frame_bridge

    [1]: 149 At the time, reinforced concrete was commonly used in bridge design [2] but the superstructure was designed with bearings on the substructure. [1]: 149 In concrete rigid-frame design, there are no bearings. Instead the superstructure is cast monolithically with the substructure and the entire bridge from deck to footing is continuous.

  6. Pier (bridge structure) - Wikipedia

    en.wikipedia.org/wiki/Pier_(bridge_structure)

    Fades viaduct – The tallest traditional masonry piers ever built (92 m). Until the advent of concrete and the use of cast iron and then steel, bridges were made of masonry. Roman bridges were sturdy, semicircular, and rested on thick piers, with a width equal to about half the span of the vault. [2]

  7. Rapid bridge replacement - Wikipedia

    en.wikipedia.org/wiki/Rapid_bridge_replacement

    Components can be categorized into prefabricated bridge elements (e.g. beams, bridge decks, footings, columns, pier caps, abutments etc.) or prefabricated bridge systems (e.g. bridge modules with superstructures and/or substructures).

  8. Falsework - Wikipedia

    en.wikipedia.org/wiki/Falsework

    The illustrations are of modern pipe-column falsework, used to support the formwork for a post-tensioned reinforced concrete flyover connector for the eastern span replacement of the San Francisco-Oakland Bay Bridge. When the supports are complete, wood beams and plywood or reusable metal forms will be placed, reinforcing and tenon conduits ...

  9. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.