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  2. Jack post - Wikipedia

    en.wikipedia.org/wiki/Jack_post

    A jack post (telepost, adjustable steel column) is a steel post used in the construction trades for temporary support of ceilings, walls and trenches ().They are designed to be able to mechanically telescope to about twice their shortest length in order to span a wide variety of spaces.

  3. Reinforced concrete column - Wikipedia

    en.wikipedia.org/wiki/Reinforced_Concrete_Column

    A reinforced concrete column is a structural member designed to carry compressive loads, composed of concrete with an embedded steel frame to provide reinforcement. For design purposes, the columns are separated into two categories: short columns and slender columns.

  4. 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.

  5. Staggered truss system - Wikipedia

    en.wikipedia.org/wiki/Staggered_truss_system

    The staggered truss system is a type of structural steel framing used in high-rise buildings.The system consists of a series of story-high trusses spanning the total width between two rows of exterior columns and arranged in a staggered pattern on adjacent column lines. [1]

  6. Steel frame - Wikipedia

    en.wikipedia.org/wiki/Steel_frame

    The central "web" of the steel I-beam is often wider than a column web to resist the higher bending moments that occur in beams. Wide sheets of steel deck can be used to cover the top of the steel frame as a "form" or corrugated mold, below a thick layer of concrete and steel reinforcing bars. Another popular alternative is a floor of precast ...

  7. Phoenix Iron Works (Phoenixville, Pennsylvania) - Wikipedia

    en.wikipedia.org/wiki/Phoenix_Iron_Works...

    An arc of Phoenix Columns adorns a plaza outside the old foundry building. The Phoenix Column, patented by Samuel Reeves in 1862, was a hollow cylinder composed of four, six, or eight wrought iron segments riveted together. The resulting column was much lighter and stronger than the solid cast iron columns of the day. [9]

  8. Vibro stone column - Wikipedia

    en.wikipedia.org/wiki/Vibro_stone_column

    Vibro stone columns or aggregate piers are an array of crushed stone pillars placed with a vibrating tool into the soil below a proposed structure. This method of ground improvement is also called vibro replacement .

  9. Caisson (engineering) - Wikipedia

    en.wikipedia.org/wiki/Caisson_(engineering)

    Schematic cross section of a pressurized caisson. In geotechnical engineering, a caisson (/ ˈ k eɪ s ən,-s ɒ n /; borrowed from French caisson 'box', from Italian cassone 'large box', an augmentative of cassa) is a watertight retaining structure [1] used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, [2] or for the repair of ships.