Dynamic response analyses and model vibration tests on seismic isolating foundation of bridge pier

Tongxiang An, Osamu Kiyomiya

Research output: Contribution to journalArticle

Abstract

In this study, the oscillation behavior and the aseismicity of bridge piers with isolating foundations are investigated. An isolating foundation is formed by installing isolation materials such as sand, gravel and PTFE (Teflon sheet) between the footing and the pier foundation and mainly utilizes the relative displacements (sliding and rocking) between the footing and the foundation to absorb and dissipate energy during large-scale earthquakes. The governing equations of motion are derived and dynamic response analyses and model vibration tests on a single pier are carried out. The results show that this isolating system has a significant positive effect in decreasing responses during earthquakes.

Original languageEnglish
Pages (from-to)623-642
Number of pages20
JournalDoboku Gakkai Ronbunshuu A
Volume62
Issue number3
DOIs
Publication statusPublished - 2006
Externally publishedYes

Keywords

  • Bridge pier
  • Dynamic response analysis
  • Lift-off
  • Model vibration test
  • Rocking
  • Seismic isolating foundation
  • Sliding

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Mechanical Engineering
  • Building and Construction

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