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  2. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    For example, barriers around parking areas made of HSS are often filled, to at least bumper height, with concrete. This is an inexpensive (when replacement costs are factored in) way of adding compressive strength to the bollard, which can help prevent unsightly local denting, though it does not generally significantly increase the overall ...

  3. Lally column - Wikipedia

    en.wikipedia.org/wiki/Lally_column

    A Lally column is a round or square thin-walled structural steel column filled with concrete, [1] and oriented vertically to provide support to beams or timbers stretching over long spans. Lally columns are an engineered component and as such must be installed exactly as the design engineer specified.

  4. Traffic cone - Wikipedia

    en.wikipedia.org/wiki/Traffic_cone

    When a lane closure must also be a physical barrier against cars accidentally crossing it, a Fitch barrier, in which the barrels are filled with sand, or a Jersey barrier is used. In many countries such as Australia and in some American states such as California , traffic barrels are rarely seen; pillar-shaped moveable bollards are instead used ...

  5. Jersey barrier - Wikipedia

    en.wikipedia.org/wiki/Jersey_barrier

    Jersey barriers on the road. A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic.It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision.

  6. F-shape barrier - Wikipedia

    en.wikipedia.org/wiki/F-shape_barrier

    The F-shape barrier is a concrete crash barrier, originally designed to divide lanes of traffic on a highway.It is a modification of the widely used Jersey barrier design, and is generally considered safer.

  7. Insulating concrete form - Wikipedia

    en.wikipedia.org/wiki/Insulating_concrete_form

    Insulating concrete form or insulated concrete form (ICF) is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without mortar) and filled with ...

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