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  2. Fracture critical bridge - Wikipedia

    en.wikipedia.org/wiki/Fracture_critical_bridge

    While members subject to compressive stress may also fail catastrophically, they typically do not fail from crack initiation. [2] Examples of bridge designs that would typically be considered fracture critical are: Most truss bridges with two main load-bearing assemblies; Two-beam girder bridges (three-beam bridges in California) Two-cell steel ...

  3. National Bridge Inventory - Wikipedia

    en.wikipedia.org/wiki/National_Bridge_Inventory

    CRITICAL CONDITION - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless the bridge is closely monitored, it may be necessary to close the bridge until corrective action is taken.

  4. Pin and hanger assembly - Wikipedia

    en.wikipedia.org/wiki/Pin_and_hanger_assembly

    Attempts have been made to increase the safety of bridges with pin and hanger assemblies by adding some form of redundancy to the assembly. Retrofits that add redundancy to pin and hanger assemblies include adding a "catcher's mitt"‍—‌a short steel beam attached to the bottom of the cantilevered girder that extends out beneath the suspended girder to "catch" the suspended girder should ...

  5. List of bridge failures - Wikipedia

    en.wikipedia.org/wiki/List_of_bridge_failures

    Collapsed a week after being resurfaced; poor steel, metal fatigue, and a previous impact by another bridge swept downstream during a flood 5–7 killed, 10 injured Complete loss, plus two trolley cars destroyed Replaced by a 3-vault concrete span Quebec Bridge: Quebec City: Canada 11 September 1916: Cantilever bridge, steel framework, railway ...

  6. Tension member - Wikipedia

    en.wikipedia.org/wiki/Tension_member

    Designers typically adhere to standardised design codes when specifying tension members, which are critical components of structural systems. In the United States, the Steel Construction Manual published by the American Institute of Steel Construction (AISC) is the primary reference for structural steel design, while in Europe, the design is guided by the Eurocodes published by the Comité ...

  7. Engineering Critical Assessment - Wikipedia

    en.wikipedia.org/wiki/Engineering_Critical...

    Engineering Critical Assessment (ECA) is a procedure by which the safety of a welded structure with defects or flaws can be determined. ECAs utilize the material properties and expected stress history to determine a flaw acceptance criteria which will ensure that welds will not fail during the construction or service life of the welded structure. [1]

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  9. Progressive collapse - Wikipedia

    en.wikipedia.org/wiki/Progressive_collapse

    The building was a steel-frame design, and the collapse was the first known example of the total progressive collapse of a steel-framed building. [3] On May 16, 1968, the 22-story Ronan Point apartment tower in West Ham, London suffered a fatal collapse of one of its corners because of a natural-gas explosion, which destroyed a load-bearing ...

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