Open AccessA lead-rubber shear damper
Author(s) -
William H. Robinson,
Andrew Tucker
Publication year - 1977
Publication title -
bulletin of the new zealand society for earthquake engineering/nzsee quarterly bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.917
H-Index - 36
eISSN - 2324-1543
pISSN - 1174-9857
DOI - 10.5459/bnzsee.10.3.151-153
Subject(s) - damper , natural rubber , base isolation , structural engineering , lead (geology) , shear (geology) , elastomer , materials science , composite material , geotechnical engineering , engineering , geology , mechanical engineering , frame (networking) , geomorphology
A lead-rubber damper consisting of a steel-reinforced elastomeric bearing with a lead insert fitted in its centre has been tested at earthquake-like frequencies (0.9 Hz) with a vertical load applied. For an engineering shear strain of ±0.59, the damper completed 340 cycles and operated satisfactorily at temperatures of -35 ± 5°C and 45 ± 5°C. We believe that the lead-rubber damper is suitable for installing in base-isolation systems for the
protection of buildings and bridges during earthquakes.