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  2. Precast concrete lifting anchor system - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete_lifting...

    The anchor selection, together with additional reinforcement, and rigging arrangements is influenced by: - The dead weight of the element - The number of anchors in the element and the configuration of the anchor - Capacity of the anchor at the specific concrete compressive strengths at time of lift - The dynamic loads applied during lifting ...

  3. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    Column-to-foundation connection [ 1] Anchor bolts are used to connect structural and non-structural elements to concrete. [ 2] The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces.

  4. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    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] This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to ...

  5. 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 anchors are a steel screw-in piling and ground anchoring system used for building deep foundations. Screw piles are typically manufactured from high-strength steel [ 1] using varying sizes of ...

  6. Concrete cone failure - Wikipedia

    en.wikipedia.org/wiki/Concrete_cone_failure

    Concrete cone failure. Concrete Cone Model [ 1] Concrete cone is one of the failure modes of anchors in concrete, loaded by a tensile force. The failure is governed by crack growth in concrete, which forms a typical cone shape having the anchor's axis as revolution axis .

  7. Hold down (structural engineering) - Wikipedia

    en.wikipedia.org/wiki/Hold_down_(structural...

    A hold-down may also refer to clamping device used to anchor a pipe to a structural steel element or concrete floor or allow movement of the pipe in an axial direction. [1] At the bottom, the hold down is connected to the concrete foundation or structural slab by an embedded or epoxied anchor bolt. At the top, the hold down is connected to a ...

  8. Michelle Pfeiffer Just Revealed Huge Career News — And We ...

    www.aol.com/michelle-pfeiffer-just-revealed-huge...

    Chris McCarthy, Paramount Global Co-CEO and President/CEO, Showtime & MTV Entertainment Studios, says, "Michelle Pfeiffer is a remarkable talent who imbues every role with emotional depth ...

  9. Anchor - Wikipedia

    en.wikipedia.org/wiki/Anchor

    Memorial anchor in Kirjurinluoto, Pori, Finland. Massive anchor chain for large ships. The weight of the chain is vital for proper holding of the anchor. [ 1] An anchor is a device, normally made of metal, used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current.

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