Application and Assessment of Equivalent Linear Analysis Method for Conceptual Seismic Retrofit Design of Háros M0 Highway Bridge

Authors

  • József Simon
    Affiliation

    Budapest University of Technology and Economics

  • László Gergely Vigh
    Affiliation

    Budapest University of Technology and Economics

  • Adrián Horváth
    Affiliation

    Főmterv Civil Engineering Designer Inc.

  • Pál Pusztai
    Affiliation

    CÉH Planning, Developing and Consulting Inc

https://doi.org/10.3311/PPci.7860

Abstract

In this study, seismic performance of the existing M0 Háros Highway Bridge in Hungary is evaluated. The large-span bridge is designed with minimal consideration of seismic actions, seismic resistance of certain piers, bearings and pile foundations is not adequate. Eight different demand mitigation methods are evaluated considering quasi-elastic configurations as well as non-linear systems adopted with non-linear anti-seismic devices (NLASD). To accelerate the preliminary design phase, an equivalent linear analysis (ELA) methodology is worked out. Keeping in mind the limitations of the ELA method, non-linear timehistory analysis (NLTHA) is also applied for the retrofitted configuration for validation purposes. Comparison of the two methods shows that the ELA method gives the designer adequate, still conservative results for optimal retrofit decisions.

Keywords:

Continuous steel and composite bridge, seismic analysis, multi modal response spectrum analysis, time history analysis, retrofitting, non-linear displacement-dependent seismic device, equivalent linear analysis

Published Online

2015-03-02

How to Cite

Simon, J., Vigh, L. G., Horváth, A., Pusztai, P. “Application and Assessment of Equivalent Linear Analysis Method for Conceptual Seismic Retrofit Design of Háros M0 Highway Bridge”, Periodica Polytechnica Civil Engineering, 59(2), pp. 109–122, 2015. https://doi.org/10.3311/PPci.7860

Issue

Vol. 59 No. 2 (2015)

Section

Research Article