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Seismic response prediction and modeling considerations for curved and skewed concrete box-girder bridges

  • Ramanathan, Karthik ;
  • Jeon, Jong-Su ;
  • Zakeri, Behzad ;
  • DesRoches, Reginald ;
  • Padgett, Jamie E.
  • Received : 2015.01.08
  • Accepted : 2015.10.30
  • Published : 2015.12.25

Abstract

This paper focuses on presenting modeling considerations and insight into the performance of typical straight, curved, and skewed box-girder bridges in California which form the bulk of the bridge inventory in the state. Three case study bridges are chosen: Meloland Road Overpass, Northwest Connector of Interstate 10/215 Interchange, and Painter Street Overpass, having straight, curved, and skewed superstructures, respectively. The efficacy of nonlinear dynamic analysis is established by comparing the response from analytical models to the recorded strong motion data. Finally insights are provided on the component behavioral characteristics and shift in vulnerability for each of the bridge types considered.

Keywords

straight, curved, skewed box-girder bridge;numerical model;model validation;component behavior;fragility

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