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Performance assessment of a highway bridge structure employing adaptive negative stiffness for seismic protection

  • Rensselaer Polytechnic Institute
  • Rice University
  • Taylor Devices, Inc.
  • SUNY Buffalo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Scopus citations

Abstract

A negative stiffness device has been tested within a quarter-scale highway bridge model on the seismic shaking table at the University at Buffalo Network for Earthquake Engineering Simulation (NEES) site. Based on the experiments, numerical models have been developed, calibrated, and used to simulate the response of the bridge under a wide range of ground motions. In addition, performance indices have been developed to systematically and quantitatively evaluate the relative performance of different isolation system configurations that employ combinations of positive and negative stiffness as well as various levels of positive damping. Further, the influence of boundary conditions (rigid versus flexible bridge piers) on the effectiveness of employing negative stiffness devices has been evaluated. Finally, concepts for graphical interpretation of the performance indices are presented and used to demonstrate the degree to which employing negative stiffness may be beneficial in improving the seismic response of bridge structures.

Original languageEnglish
Title of host publicationStructures Congress 2013
Subtitle of host publicationBridging Your Passion with Your Profession - Proceedings of the 2013 Structures Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1736-1746
Number of pages11
ISBN (Print)9780784412848
DOIs
StatePublished - 2013
EventStructures Congress 2013: Bridging Your Passion with Your Profession - Pittsburgh, PA, United States
Duration: May 2 2013May 4 2013

Publication series

NameStructures Congress 2013: Bridging Your Passion with Your Profession - Proceedings of the 2013 Structures Congress

Conference

ConferenceStructures Congress 2013: Bridging Your Passion with Your Profession
Country/TerritoryUnited States
CityPittsburgh, PA
Period05/2/1305/4/13

Keywords

  • Adaptive Passive
  • Bridge Structure
  • Negative Stiffness Device
  • Seismic Protection Device

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