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Effects of large cumulative travel on the behavior of lead-rubber seismic isolation bearings

  • SUNY Buffalo

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Lead-rubber bearings are seismic isolators that have been used extensively to protect buildings, bridges, and mission-critical infrastructure from the damaging effects of earthquake shaking. In bridges, lead-rubber bearings are subjected to continuous movement due to service (traffic) and temperature effects. This paper presents data on the effects of cumulative travel on the mechanical properties of lead-rubber bearings based on an experimental investigation of both medium- and small-sized bearings. A theoretical interpretation of the test results is presented.

Original languageEnglish
Pages (from-to)491-501
Number of pages11
JournalJournal of Structural Engineering
Volume136
Issue number5
DOIs
StatePublished - 2010

Keywords

  • Characteristic strength
  • Cumulative travel
  • Earthquakes
  • Isolation
  • Lead
  • Lead-rubber bearing
  • Recrystallization
  • Rubber
  • Seismic effects
  • Service load
  • Service loads
  • Strain hardening
  • Thermal factors
  • Thermal load

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