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  2. Precast concrete lifting anchor system - Wikipedia

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

    When an anchors load resistance must consider load reduction factors, this would imply that the particular selected anchor will form a different failure crack zone. For example, the anchors depicted in figure 5, a footed anchor has the tendency to overload the concrete cover in thin wall panels, hence is more susceptible to side blow-out ...

  3. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    Rebar has been placed atop a temporary wooden formwork deck prior to pouring concrete. The large horizontal rebar "cages" will be encased within a beam, while several thick vertical rebar stubs will stick out of the pour to form the base of a future column. Concrete is a material that is very strong in compression, but relatively weak in tension.

  4. Rail fastening system - Wikipedia

    en.wikipedia.org/wiki/Rail_fastening_system

    A rail fastening system is a means of fixing rails to railroad ties (North America) or sleepers (British Isles, Australasia, and Africa). The terms rail anchors, tie plates, chairs and track fasteners are used to refer to parts or all of a rail fastening system.

  5. Anchorage in reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Anchorage_in_Reinforced...

    Conventionally the term concrete refers only to concrete that is reinforced with iron or steel. However, other materials are often used to reinforce concrete e.g. organic and inorganic fibres, composites in different forms.

  6. Split-rail fence - Wikipedia

    en.wikipedia.org/wiki/Split-rail_fence

    Simple split-rail fence Log fence with double posts (photo taken in 1938). A split-rail fence, log fence, or buck-and-rail fence (also historically known as a Virginia, zigzag, worm, snake or snake-rail fence due to its meandering layout) is a type of fence constructed in the United States and Canada, and is made out of timber logs, usually split lengthwise into rails and typically used for ...

  7. Rebar detailing - Wikipedia

    en.wikipedia.org/wiki/Rebar_detailing

    Rebar detailing is the discipline of preparing 'shop/placing' or 'fabrication' drawings or shop drawings of steel reinforcement for construction. Engineers prepare 'design drawings' that develop required strengths by applying rebar size, spacing, location, and lap of steel .