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A platform for research: civil engineering, architecture and urbanism
Elastomeric seismic protection isolators for bridges
Demand for elastomeric bearings has increased sharply since the 1995 Hanshin-Awaji earthquake. At the same time, with much experimentation and numerical analysis, manufacturers of elastomeric bearings have been developing the constituent technologies in an effort to characterise bearing performance and advance bearing technology. There have in the meantime been several major earthquakes in Japan, notably the 2004 Niigata-Chuetsu earthquake, in which no examples of damage to elastomeric bearings have come to light, demonstrating a high level of earthquake resistance. Even in this year's Great East Japan earthquake, most elastomeric bearings remained sound, though bearing damage was reported from some bridges. Since an elastomeric bearing has a role analogous to a circuit fuse, fatal damage to bridges in the shape of beam collapse or pier failure did not arise; however, why the elastomeric bearings were damaged will have to be elucidated, the design-quality control-installation guidelines further consolidated and the technology overhauled.
Elastomeric seismic protection isolators for bridges
Demand for elastomeric bearings has increased sharply since the 1995 Hanshin-Awaji earthquake. At the same time, with much experimentation and numerical analysis, manufacturers of elastomeric bearings have been developing the constituent technologies in an effort to characterise bearing performance and advance bearing technology. There have in the meantime been several major earthquakes in Japan, notably the 2004 Niigata-Chuetsu earthquake, in which no examples of damage to elastomeric bearings have come to light, demonstrating a high level of earthquake resistance. Even in this year's Great East Japan earthquake, most elastomeric bearings remained sound, though bearing damage was reported from some bridges. Since an elastomeric bearing has a role analogous to a circuit fuse, fatal damage to bridges in the shape of beam collapse or pier failure did not arise; however, why the elastomeric bearings were damaged will have to be elucidated, the design-quality control-installation guidelines further consolidated and the technology overhauled.
Elastomeric seismic protection isolators for bridges
Elastomere seismische Schutzisolatoren für Brücken
Kobayashi, E. (author) / Kaneko, K. (author)
International Polymer Science and Technology ; 39 ; T/7-T/14
2012
8 Seiten, 10 Bilder, 7 Tabellen, 5 Quellen
Article (Journal)
English
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