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  2. Precast concrete lifting anchor system - Wikipedia

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

    F/n = 23 kN per anchor during site lifting (n = 2 lifting anchors) Reference to the load capacity tables provided by the anchor manufacturer is required to make an anchor selection for the specific concrete strengths at the time of lifting. Hence the great of the two calculated anchor capacities required at the concrete strength of the initial ...

  3. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beams, and wall panels, floors, roofs, and piles.

  4. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    Lifting inserts: used for lifting operations of plain or prestressed RC beams. The insert can be a threaded rod. See also bolt (climbing). Anchor channels: used in precast concrete connections. [8] The channel can be a hot-rolled or a cold-formed steel shape in which a T-shape screw is placed in order to transfer the load to the base material.

  5. Lift slab construction - Wikipedia

    en.wikipedia.org/wiki/Lift_slab_construction

    Lift slab construction (also called the Youtz-Slick Method) is a method of constructing concrete buildings by casting the floor or roof slab on top of the previous slab and then raising (jacking) the slab up with hydraulic jacks. This method of construction allows for a large portion of the work to be completed at ground level, negating the ...

  6. Launching gantry - Wikipedia

    en.wikipedia.org/wiki/Launching_gantry

    Underslung (lower-beam) launching gantry used for Skyline guideway construction (2015). A launching gantry (also called bridge building crane, and bridge-building machine) is a special-purpose mobile gantry crane used in bridge construction, specifically segmental bridges that use precast box girder bridge segments or precast girders in highway and high-speed rail bridge construction projects.

  7. Overhead crane - Wikipedia

    en.wikipedia.org/wiki/Overhead_crane

    Overhead crane at the Skanska precast concrete factory in Hjärup, Sweden. Gantry-style overhead cranes of the Hainaut quarry in Soignies, Belgium. An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments.

  8. Lewis (lifting appliance) - Wikipedia

    en.wikipedia.org/wiki/Lewis_(lifting_appliance)

    A kerb lifter lifting kerb stones in Hainan, China. A manual kerb lifter is a large, adjustable pair of tongs, made with a pair of handles so that two people can manoeuvre heavy blocks of stone into position. A mechanical kerb lifter can also be made to fit mechanical lifters like forklifts or crane-trucks so that larger stones can be placed.

  9. Lifting equipment - Wikipedia

    en.wikipedia.org/wiki/Lifting_equipment

    Lifting equipment, also known as lifting gear, is a general term for any equipment that can be used to lift and lower loads. [1] Types of lifting equipment include heavy machinery such as the patient lift , overhead cranes , forklifts , jacks , building cradles, and passenger lifts, and can also include smaller accessories such as chains ...

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