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    A rapid financial seismic risk assessment methodology with application to bridge piers

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    12603969_2006(11)_ACMSM19_Christchurch.pdf (192.6Kb)
    Author
    Solberg, K.
    Mander, J.B.
    Dhakal, R.P.
    Date
    2006
    Permanent Link
    http://hdl.handle.net/10092/4278

    Expected annual loss (EAL), is an effective way of communicating the seismic vulnerability of constructed facilities to decision makers. A simplified method for approximating EAL without conducting time consuming non-linear dynamic analyses is presented. Relationships between intensity measures and engineering demand parameters resulting from a pushover analysis and a modified version of the capacity spectrum method are combined with a variety of epistemic and aleotoric uncertainties to arrive at a demand model. Financial implications due to damage are quantified by loss ratios defined as repair cost divided by replacement cost. The method is verified by performing a comprehensive Incremental Dynamic Analysis. An example illustrating the method is performed, comparing the seismic vulnerability of two highway bridge piers; one designed for ductility, and the other designed for damage avoidance. The damage avoidance pier has a clear advantage over the conventional pier, with an EAL some 80% less than its ductile counterpart.

    Subjects
    Field of Research::09 - Engineering::0905 - Civil Engineering::090504 - Earthquake Engineering
     
    Field of Research::09 - Engineering::0905 - Civil Engineering::090506 - Structural Engineering
    Collections
    • Engineering: Conference Contributions [1818]
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