Dynamic behavior of steel deck tension-tied arch bridges

Morteza A.M. Torkamani, Hak E. Lee

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The dynamic responses of a steel deck tension-tied arch bridge subjected to earthquake excitations were investigated. The Birmingham Bridge with span of 189 m (620 ft) located in Pittsburgh, PA was selected as an analytical model for the study. Two analytical models were considered for representing the bridge deck system: in one the bridge deck was replaced by a series of simple beams connected to the tension-ties at panel points; in the other the deck was modeled by using substructures. To evaluate the seismic resistance of the bridge, a comparative study has been conducted. Three orthogonal records of the El Centro 1940 earthquake were used as support excitation for the seismic response analysis. Based on the study, it was found that the simple beam model would be inadequate for representing the bridge deck system in the seismic response analysis of the bridge. The accuracy of the analytical models may be improved by applying a method of parameter estimation. A schematic diagram of the identification process is presented, which controls on the accuracy of the data processing and parameter estimation checked by an expert system program. Copyright ASCE 2004.

    Original languageEnglish
    Title of host publicationStructures Congress 2000
    Subtitle of host publicationAdvanced Technology in Structural Engineering
    DOIs
    Publication statusPublished - 2004
    EventStructures Congress 2000: Advanced Technology in Structural Engineering - Philadelphia, PA, United States
    Duration: 2000 May 82000 May 10

    Publication series

    NameStructures Congress 2000: Advanced Technology in Structural Engineering
    Volume103

    Other

    OtherStructures Congress 2000: Advanced Technology in Structural Engineering
    Country/TerritoryUnited States
    CityPhiladelphia, PA
    Period00/5/800/5/10

    Keywords

    • Bridges, arch
    • Dynamic response
    • Earthquakes
    • Seismic stability
    • Steel decks

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Mechanics of Materials
    • Safety, Risk, Reliability and Quality
    • Building and Construction

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