Abstract The study examines the assessment method for the safety of concrete bridges in the Korean expressway using the probabilistic concept. The reliability-based assessment methods available are reviewed, and the assessment results from the different methods are compared through field applications. A comparison of the assessment results from the available international assessment codes or guidelines showed that the current assessment method in Korea provides a very conservative result. The evaluation using the proposed assessment method, considering the reduced uncertainty in the assessment and corresponds to the newly issued bridge design code in the limit-state format, revealed a considerably improved rating factor. To take the characteristics of the limited truck traffic of the expressway into account, a live load model is constructed using the site-specific truck information in a statistical manner and used to evaluate the load rating. In addition, a new updating process for an analytical model of a bridge using measured response is presented. The reduced live load of the expressway increased the rating factor of the test PSC (Prestressed Concrete) girder bridge in a Korean expressway. The rating factor of the test bridge was increased further by applying the updated analytical model.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Safety assessment of concrete expressway bridges employing probabilistic concept


    Contributors:

    Published in:

    Publication date :

    2013-04-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Safety assessment of concrete expressway bridges employing probabilistic concept

    Paik, Inyeol / Ahn, Sang-Sup / Shin, Soobong | Online Contents | 2013


    Safety Assessment Model for Expressway Based on Accident Mechanism

    Lu, Li Li ;Ren, Gang ;Lu, Li Ming | Trans Tech Publications | 2014


    Expressway tunnel safety monitoring system

    SHI MIN / WANG JIAN / HOU JINHUA et al. | European Patent Office | 2021

    Free access

    Detroit expressway built for safety

    Engineering Index Backfile | 1944


    Expressway tunnel safety guiding device

    LI PENG / TIAN FENG / BAO HUA | European Patent Office | 2024

    Free access