Seismic Response of Integral Abutment Bridges

D. L. Kozak, J. Luo, J. M. Lafave, L. A. Fahnestock

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


The use of integral abutment bridges (IABs) is widespread throughout the U.S.; the Midwestern state of Illinois is no exception, with this bridge type commonly utilized in the state. The proximity of southern Illinois to the New Madrid Seismic Zone creates concerns about the earthquake-resistance of IABs in this region. Recent research concerning the seismic response of seat-type abutment bridges has determined that the failure of abutment bearings and backwalls are important fusing mechanisms under moderate to strong seismic loads. However, only limited research has been conducted on the seismic response of IABs (especially in Illinois), which do not have the abutment bearings that allow seat-type abutment bridges to behave in a quasi-isolated fashion. Through the use of site-specific ground motions developed for various locations in southern Illinois, along with a set of IAB models created in OpenSees, this paper presents preliminary data concerning the seismic structural behavior of an IAB designed per current IDOT procedures.

Original languageEnglish (US)
Title of host publicationStructures Congress 2017
Subtitle of host publicationBridges and Transportation Structures - Selected Papers from the Structures Congress 2017
EditorsJ. Greg Soules
PublisherAmerican Society of Civil Engineers
Number of pages10
ISBN (Electronic)9780784480403
StatePublished - 2017
EventStructures Congress 2017 - Denver, United States
Duration: Apr 6 2017Apr 8 2017

Publication series

NameStructures Congress 2017: Bridges and Transportation Structures - Selected Papers from the Structures Congress 2017


OtherStructures Congress 2017
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering


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