Performance-based earthquake assessment of bridge systems including ground-foundation interaction

    Authors

    K. R. Mackie; J. C. Lu;A. Elgamal

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Soil Dyn. Earthq. Eng.

    Keywords

    SEISMIC RESPONSE; SOIL; SIMULATION; DAMAGE; COST; Engineering, Geological; Geosciences, Multidisciplinary

    Abstract

    Performance-based earthquake engineering (PBEE) assessment studies on highway bridges can only address post-earthquake repair fully when considering the response of the bridge-foundation-ground and the consequences of damage and repair to all system components. In this paper, nonlinear time history analysis of coupled bridge-foundation-ground systems is coupled with a PBEE framework to investigate a typical highway overpass bridge founded on different soil profiles. The prototype bridges are typical reinforced concrete highway overpass bridges with single-column bents founded on four sites of varying stiffness and strength profiles ranging from rigid rock to weak upper soil strata. Probabilistic repair cost and time response quantities are used to contrast performance of the four scenarios. Intensity-dependent repairs, repair hazard curves, and repairs disaggregated by performance groups indicate contributions to system repair for each scenario. A sensitivity study is presented that demonstrates the most important parameters to be the damage state and repair quantities related to the foundations and abutments. (c) 2012 Elsevier Ltd. All rights reserved.

    Journal Title

    Soil Dynamics and Earthquake Engineering

    Volume

    42

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    184

    Last Page

    196

    WOS Identifier

    WOS:000308449500017

    ISSN

    0267-7261

    Share

    COinS