Abstract Traditionally, shallow spread footing type foundations are used for medium span bridges supported on rock strata. Such bridges are modeled with fixed supports and no Soil-Structure Interaction (SSI) is considered. The investigation presented herein utilized a substructuring technique and Finite Element Method (FEM) model for a medium span 4-span bridge designed for five different rock classes and subjected to an ensemble of actual ground motions. Non-linear behavior of reinforced concrete pier column was modeled for material and geometric non-linearity and incorporated in the overall analysis scheme by equivalent linear model while SSI was included through Winkler springs. The results of the study were evaluated to delineate the effect of SSI and pier column non-linearity on seismic response parameters of bridges founded on shallow foundations in rock strata. It was found that the SSI cannot be neglected in all cases of rock classes and input ground motions. Furthermore, pier column non-linearity influenced bridge displacement and base shear much more significantly than SSI and should not be ignored in the seismic modeling and analysis of these bridges.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Seismic response of bridges supported on shallow rock foundations considering SSI and pier column inelasticity


    Contributors:

    Published in:

    Publication date :

    2016-02-24


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Seismic Strengthening of Column-Pier-Cap Connections

    Sanders, David H. | Online Contents | 1998


    Seismic Strengthening of Column-Pier-Cap Connections

    Sanders, David H. / Saiidi, M. Saiid / Martin, Troy | Transportation Research Record | 1998


    Seismic bearing capacity of shallow foundations resting on rock masses subjected to seismic loads

    Zhou, Xiao-Ping / Gu, Xin-Bao / Yu, Mao-Hong et al. | Springer Verlag | 2016


    Seismic bearing capacity of shallow foundations resting on rock masses subjected to seismic loads

    Zhou, Xiao-Ping / Gu, Xin-Bao / Yu, Mao-Hong et al. | Online Contents | 2016