Seismic response analysis of continuous highway bridges under near-fault ground motions

Hai Bin Ma, Wei Dong Zhuo, Davide Lavorato, Gabriele Fiorentino, Camillo Nuti, Fabio Sabetta

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)

Abstract

Ground motions in proximity to the causative fault of an earthquake are significantly affected in many cases by forward-directivity effects. The resulting seismic action on bridge is characterized by an important pulse type motion that is not considered in many international structural designed codes. In this paper, the effects of near-fault ground motions applied on regular highway bridges with design parameters selected by a sampling method, are discussed and compared with the ones of the same bridges subjected to far-fault earthquakes. Time history analyses were performed on fiber element bridge models by means of OpenSees considering seven near-fault earthquake input records with significant velocity pulse selected worldwide from the PEER database considering the same site conditions, and the El-centro earthquake record as ordinary far-field earthquake. The results are analyzed in term of top pier drift ratio, pier slenderness ratio, PGA and earthquake intensity parameters.

Original languageEnglish
Title of host publicationCOMPDYN 2017 - Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
EditorsM. Papadrakakis, Michalis Fragiadakis
PublisherNational Technical University of Athens
Pages2138-2148
Number of pages11
ISBN (Electronic)9786188284418
DOIs
Publication statusPublished - 2017
Event6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2017 - Rhodes Island, Greece
Duration: 15 Jun 201717 Jun 2017

Publication series

NameCOMPDYN 2017 - Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
Volume1

Conference

Conference6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2017
CountryGreece
CityRhodes Island
Period15/06/1717/06/17

Keywords

  • Continuous Bridges
  • Intensify Measures
  • Near-fault
  • Orthogonal Experimental Design
  • Time-history Analysis

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