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  2. Truss - Wikipedia

    en.wikipedia.org/wiki/Truss

    The Pratt truss was patented in 1844 by two Boston railway engineers, [19] Caleb Pratt and his son Thomas Willis Pratt. [20] The design uses vertical members for compression and diagonal members to respond to tension. The Pratt truss design remained popular as bridge designers switched from wood to iron, and from iron to steel. [21]

  3. Warren truss - Wikipedia

    en.wikipedia.org/wiki/Warren_truss

    Warren truss – some of the diagonals are under compression and some under tension. In structural engineering, a Warren truss or equilateral truss [1] is a type of truss employing a weight-saving design based upon equilateral triangles. It is named after the British engineer James Warren, who patented it in 1848.

  4. Truss bridge - Wikipedia

    en.wikipedia.org/wiki/Truss_bridge

    The bowstring truss design fell out of favor due to a lack of durability, and gave way to the Pratt truss design, which was stronger. Again, the bridge companies marketed their designs, with the Wrought Iron Bridge Company in the lead. As the 1880s and 1890s progressed, steel began to replace wrought iron as the preferred material. Other truss ...

  5. King post - Wikipedia

    en.wikipedia.org/wiki/King_post

    The king post is the central, vertical member of the truss. Crown posts in the nave roof at Old Romney church, Kent, England. A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post, though visually similar, supports items above from the beam below).

  6. Fink truss - Wikipedia

    en.wikipedia.org/wiki/Fink_truss

    Interior of a barn with a Fink truss, with the characteristic W shape. Fink design trusses are used today for pedestrian bridges and as roof trusses in building construction in an inverted (upside down) form where the lower chord is present and a central upward projecting vertical member and attached diagonals provide the bases for roofing. [9]

  7. Tube (structure) - Wikipedia

    en.wikipedia.org/wiki/Tube_(structure)

    By 1963, a new structural system of framed tubes had appeared in skyscraper design and construction. Fazlur Rahman Khan, a structural engineer from Bangladesh (then called East Pakistan) who worked at Skidmore, Owings & Merrill, defined the framed tube structure as "a three dimensional space structure composed of three, four, or possibly more frames, braced frames, or shear walls, joined at or ...

  8. Burr Truss - Wikipedia

    en.wikipedia.org/wiki/Burr_Truss

    The design principle behind the Burr arch truss is that the arch should be capable of bearing the entire load on the bridge while the truss keeps the bridge rigid. Even though the kingpost truss alone is capable of bearing a load, this was done because it is impossible to evenly balance a dynamic load crossing the bridge between the two parts. [5]

  9. Truss arch bridge - Wikipedia

    en.wikipedia.org/wiki/Truss_arch_bridge

    A truss arch bridge combines the elements of the truss bridge and the arch bridge.The actual resolution of forces will depend upon the bridge' design. [1] If no horizontal thrusting forces are generated, this becomes an arch-shaped truss which is essentially a bent beam – see moon bridge for an example.

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