Three-dimensional response of reinforced concrete bridges under spatially varying seismic excitation

C. E.Peña Ramos, A. Haldar

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

1 Scopus citations

Abstract

A novel approach to study nonlinear seismic response behavior of three-dimensional (3-D) concrete bridges is presented in a six step methodology. The methodology rigorously considers spatial variability in the seismic excitation (SVSE) caused by wave passage and incoherence and local soil conditions, as well as the effects of far-field and near-field epicentral distance. Bridges are represented by 3-D finite element models with bidirectional plastic hinges at piers and soil-foundation interface elements that account for soil dynamic stiffness at each ground support. Results on pier rotational Ductility Demands (DD) in symmetric and asymmetric multi-span bridges considered in the study indicate that the magnitude of the DD depends on the type of soil, the pier location and the length of the bridge. Results also show that ignoring SVSE effects can cause severe underestimation of DD.

Original languageEnglish (US)
Title of host publicationSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages1169-1175
Number of pages7
StatePublished - Dec 1 2013
Event11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States
Duration: Jun 16 2013Jun 20 2013

Publication series

NameSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013

Other

Other11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
CountryUnited States
CityNew York, NY
Period6/16/136/20/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Ramos, C. E. P., & Haldar, A. (2013). Three-dimensional response of reinforced concrete bridges under spatially varying seismic excitation. In Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 (pp. 1169-1175). (Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013).