Seismic analysis and assessment of a skew highway bridge

Jun Yi Meng, Eric M. Lui

Research output: Contribution to journalArticle

59 Scopus citations

Abstract

The seismic response of a skew reinforced concrete box girder bridge-the Foothill Boulevard Undercrossing-is analyzed and studied using finite element models. The effects of superstructure flexibility, substructure boundary conditions, structural skewness and stiffness eccentricity are assessed using spectral analyses. The results show that the internal forces and displacements of the supporting columns as well as the displacement of the deck will be underestimated if one neglects the flexibility of the bridge deck. The study also demonstrates that the seismic response of the bridge is affected quite noticeably by the boundary conditions of the bridge columns and the overall skewness of the bridge. Based on this study, a theory to explain the failure of this bridge is presented. (c) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish (US)
Pages (from-to)1433-1452
Number of pages20
JournalEngineering Structures
Volume22
Issue number11
DOIs
StatePublished - Nov 1 2000

Keywords

  • Bridge modeling
  • Failure analysis
  • Response spectrum analysis
  • Seismic effects
  • Skew bridge

ASJC Scopus subject areas

  • Civil and Structural Engineering

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