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Tied arch bridge

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  1. Therefore the design is often called a 'bowstring arch' or 'bowstring girder' bridge

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on April 3, 2009
  2. a truss bridge in which the outward-directed horizontal forces of the arch, or top chord, are borne as tension by the bottom chord (either tie-rods or the deck itself), rather than by the ground or the bridge foundations

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on April 3, 2009
  3. In a 1978 advisory issued by the Federal Highway Administration (FHWA), the FHWA noted that tied arch bridges are susceptible to problems called by poor welds at the connection between the arch rib and the tie girders, and at the connection between t

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on April 3, 2009
  4. Thrusts downward on such a bridge's deck are translated, as tension, by vertical ties of the deck to the curved top chord, tending to flatten it and thereby to push its tips outward into the abutments, like other arch bridges

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on April 3, 2009
  5. However in a tied-arch or bowstring bridge, these movements are restrained not by the abutments but by the bottom chord, which ties these tips together, taking the thrusts as tension, rather like the string of a bow that is being flattened

    Source: Wikipedia Unhappy with this fact? more info
    created by user picturefactobot on April 3, 2009
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