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  2. Glossary of prestressed concrete terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_prestressed...

    The distance between end anchorages of a tendon. tendon low point The minimum height of a tendon's profile between two consecutive high points, or high point and end anchorage, and commonly occurring in the midspan region of the element. Usually measured from the concrete soffit formwork to the underside of the tendon duct or sheathing.. tendon ...

  3. 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.

  4. Extradosed bridge - Wikipedia

    en.wikipedia.org/wiki/Extradosed_bridge

    An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. [1] [2]: 85 [3] The name comes from the word extrados, the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons ...

  5. Tensioned stone - Wikipedia

    en.wikipedia.org/wiki/Tensioned_stone

    This method of construction is widely used for concrete structures, but the advantages of using similar techniques with stone are only just being realised.". [4] For concrete, this problem has been long solved: in addition to conventional tensile reinforcement, engineers developed prestressed concrete methods starting around 1888. Such tension ...

  6. PC strand - Wikipedia

    en.wikipedia.org/wiki/Pc_strand

    The prestressed strands of the mold are twisted to form a mold compression process, the structure is more compact, and the surface layer is more suitable for anchoring. Production of unbonded prestressed steel strand (unbonded steel strand) using ordinary prestressed steel wire, coated with oil or paraffin after the packaging into high-density ...

  7. Creep and shrinkage of concrete - Wikipedia

    en.wikipedia.org/.../Creep_and_shrinkage_of_concrete

    Creep and shrinkage of concrete are two physical properties of concrete. The creep of concrete, which originates from the calcium silicate hydrates (C-S-H) in the hardened Portland cement paste (which is the binder of mineral aggregates), is fundamentally different from the creep of metals and polymers. Unlike the creep of metals, it occurs at ...

  8. 2b2t - Wikipedia

    en.wikipedia.org/wiki/2b2t

    2b2t.org (server) [ 5 ] 2b2t (2builders2tools) is a Minecraft server founded in December 2010. 2b2t has essentially no rules and players are not permanently banned, known within Minecraft as an " anarchy server". [ 2 ] As a result, players commonly engage in the destruction of other players' and groups creations, colloquially called " griefing ...

  9. Eugène Freyssinet - Wikipedia

    en.wikipedia.org/wiki/Eugène_Freyssinet

    Significant advance. developments in prestressed concrete. Awards. IStructE Gold Medal Frank P. Brown Medal (1950) Wilhelm Exner Medal (1960) Eugène Freyssinet (French: [øʒɛn fʁɛsinɛ]) (13 July 1879 – 8 June 1962) was a French structural and civil engineer. He was the major pioneer of prestressed concrete.

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