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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. Lifeline (safety) - Wikipedia

    en.wikipedia.org/wiki/Lifeline_(safety)

    A lifeline is a fall protection safety device in the form of an open fence composed of wire and stanchions secured around the perimeter of an area to prevent accidental falls. It is commonly found on sailboats [ 1 ] and construction sites , [ 2 ] as well as other situations where dangerous falls can occur, such as at scenic overlooks and in caves .

  4. Anchor bolt - Wikipedia

    en.wikipedia.org/wiki/Anchor_bolt

    In this case, concrete base material might be undamaged. Pull-out: the anchor is pulled out from the drilled hole partially damaging the surrounding concrete. When the concrete is damaged the failure is also indicated as pull-through. Concrete cone: after reaching the load-bearing capacity a cone shape is formed.

  5. Hurricane-proof building - Wikipedia

    en.wikipedia.org/wiki/Hurricane-proof_building

    Windows can be constructed with plastic panes, shatterproof glass, or glass with protective membranes. The panes are often more firmly attached than normal window panes, including using screws or bolts through the edges of larger panes. Concrete anchor screws are used to secure windows to the concrete structure surrounding them.

  6. Fall protection - Wikipedia

    en.wikipedia.org/wiki/Fall_protection

    Fall protection is the use of controls designed to protect personnel from falling or in the event they do fall, to stop them without causing severe injury. Typically, fall protection is implemented when working at height, but may be relevant when working near any edge, such as near a pit or hole, or performing work on a steep surface.

  7. Massive concrete block falls on 44-year-old worker, killing ...

    www.aol.com/news/massive-concrete-block-falls-44...

    Concrete slab crushes 2 workers at JFK Airport, feds say. Construction company fined. Worker who fell 50 feet to his death was given inaccurate safety info, feds say. Show comments.

  8. Concrete cone failure - Wikipedia

    en.wikipedia.org/wiki/Concrete_cone_failure

    Under tension loading, the concrete capacity of a single anchor is calculated assuming an inclination between the failure surface and surface of the concrete member of about 35°. The concrete cone failure load N 0 {\displaystyle N_{0}} of a single anchor in uncracked concrete unaffected by edge influences or overlapping cones of neighboring ...

  9. Anchor (climbing) - Wikipedia

    en.wikipedia.org/wiki/Anchor_(climbing)

    In rock climbing, an anchor can be any device or method for attaching a climber, rope, or load to a climbing surface—typically rock, ice, steep dirt, or a building—either permanently or temporarily. The intention of an anchor is case-specific but is usually for fall protection, primarily fall arrest and fall restraint.

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