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  2. 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 .

  3. T. Y. Lin International - Wikipedia

    en.wikipedia.org/wiki/T._Y._Lin_International

    1950s: T.Y. Lin International was founded on June 1, 1954, by Tung-Yen Lin, a Chinese-American structural engineer recognized worldwide as an innovator in bridge design, engineering, and construction. Lin is credited with standardizing the practical use of prestressed concrete. He is also known for his emphasis on the structural aesthetics ...

  4. Spancrete - Wikipedia

    en.wikipedia.org/wiki/Spancrete

    Spancrete produces precast, prestressed concrete products that are used in commercial, industrial, institutional, residential and multifamily construction projects in the Midwest and Southeast. The company also manufactures and sells hollowcore extrusion machines that are used to produce precast concrete internationally.

  5. Glossary of prestressed concrete terms - Wikipedia

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

    A device that tensions prestressed concrete tendons. [1]: 36 [3]: 35–36 stressing stool A device interposed between the stressing jack and the concrete member during tensioning operations, to allow manipulation of the anchor block and seating wedges. Often used during lift-off testing. swage

  6. Double tee - Wikipedia

    en.wikipedia.org/wiki/Double_tee

    Modern multi-story parking structures are built from precast/prestressed concrete systems. The floor systems are mostly built from pre-topped double tees. This system evolved from the earlier use of tee systems where the flanges of the T-beams were connected. The concrete is then poured at the top of the tees during the construction to create ...

  7. Eugène Freyssinet - Wikipedia

    en.wikipedia.org/wiki/Eugène_Freyssinet

    Having left Limousin, he set up his own firm to build prestressed concrete electricity pylons, but the business failed. [6] In 1935, he used prestressing to consolidate the maritime station of Le Havre which was threatening to settle beyond repair. Freyssinet introduced prestressed concrete beams, and jacked up the shipyard buildings.

  8. International Federation for Structural Concrete - Wikipedia

    en.wikipedia.org/wiki/International_Federation...

    The Comité européen du béton - European Committee for Concrete (later: Comité euro-international du béton) was established in 1953. In 1962 a common initiative by the FIP and CEB led to the creation of the 'Mixed CEB-FIP Committee for Drafting of Recommendations for Prestressed Concrete'.

  9. Hollow-core slab - Wikipedia

    en.wikipedia.org/wiki/Hollow-core_slab

    Diagram of a concrete slab of hollow core construction Photograph of a hollowcore assembly. A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings.