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  2. Shoring - Wikipedia

    en.wikipedia.org/wiki/Shoring

    Shoring is commonly used when installing the foundation of a building. A shoring system such as piles and lagging or shotcrete will support the surrounding loads until the underground levels of the building are constructed. Commonly used shoring equipment includes post shores, shoring beams, and timber jacks.

  3. Girder bridge - Wikipedia

    en.wikipedia.org/wiki/Girder_bridge

    A girder bridge is a bridge that uses girders as the means of supporting its deck. [1] The two most common types of modern steel girder bridges are plate and box. [citation needed] The term "girder" is often used interchangeably with "beam" in reference to bridge design. [2][3][4][5] However, some authors define beam bridges slightly ...

  4. Screw piles - Wikipedia

    en.wikipedia.org/wiki/Screw_piles

    Screw piles, sometimes referred to as screw-piles, screw piers, screw anchors, screw foundations, ground screws, helical piles, helical piers, or helical anchorsare a steel screw-in piling and ground anchoringsystem used for building deepfoundations. Screw piles are typically manufactured from high-strength steel[1]using varying sizes of ...

  5. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    Prestressed beam without load. Prestressed beam with load. Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. [1][2]: 3–5 [3] It was patented by Eugène Freyssinet in 1928.

  6. Falsework - Wikipedia

    en.wikipedia.org/wiki/Falsework

    Falsework consists of temporary structures used in construction to support a permanent structure until its construction is sufficiently advanced to support itself. For arches, this is specifically called centering. Falsework includes temporary support structures for formwork used to mold concrete [ 1 ] in the construction of buildings, bridges ...

  7. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    Rebar (short for reinforcing bar), known when massed as reinforcing steel or steel reinforcement, [ 1 ] is a tension device added to concrete to form reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength.

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