Analytical assessment of seismic performance evaluation procedures for bridges

Oh Sung Kwon, Aman M. Mwafy, Amr S. Elnashai

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

3 Citations (Scopus)


The multi-limit state seismic design and evaluation procedure allows structures to satisfy different performance criteria against different levels of seismic excitation. To achieve the simultaneous satisfaction of the multi-level design approach, it is essential to employ accurate analysis procedures which can be consistently applied to various levels of ground motions. In this study, several analytical evaluation procedures are compared via the application of the methods to two bridge structures. In the first application, a bridge considered typical of the inventory in the Central and Eastern United States is analyzed. Inelastic Response History Analysis (IRHA), two Capacity Spectrum Methods (CSMs), two Elastic Response History Analysis (ERHA) approaches with different stiffness approximation, and SDOF simulations are conducted. The second and more complex application, a 59-span irregular bridge crossing the Mississippi River is also analyzed in the elastic and inelastic ranges. Results from IRHA and simplified analysis procedures are compared to assess their applicability and limitations. It is concluded that the approximate methods have limited applicability, which depends on several parameters including intensity of ground motions and characteristics of bridge structures. The importance of inelastic and dynamic analysis in seismic assessment is emphasized, while cases where the simplified procedures yield acceptable response are presented.

Original languageEnglish
Title of host publicationStructural Concrete in Performance-Based Seismic Design of Bridges - Technical Session at the ACI Fall 2008 Convention
Number of pages17
Edition271 SP
Publication statusPublished - 2010
EventACI Fall 2008 Convention - St. Louis, MO, United States
Duration: Nov 2 2008Nov 6 2008

Publication series

NameAmerican Concrete Institute, ACI Special Publication
Number271 SP
ISSN (Print)0193-2527


OtherACI Fall 2008 Convention
Country/TerritoryUnited States
CitySt. Louis, MO


  • Capacity spectrum method
  • Inelastic response history analysis
  • Performance-based evaluation
  • Simplified analysis procedures

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science


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