Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
Online ISSN : 2185-4653
ISSN-L : 2185-4653
JSCE Journal of Earthquake Engineering, Vol.31
DAMAGE CHARACTERISTIC OF BRIDGES DUE TO 2010 CHILE EARTHQUAKE
Kazuhiko KAWASHIMAShigeki UNJOHJun-ichi HoshikumaKenji KOSA
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2010 Volume 66 Issue 1 Pages 386-396

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Abstract
This paper introduces damage of bridges due to Offshore Maule earthquake (M=8.8) on February 27, 2010, in Chile. Authors involved in the reconnaissance group member of JSCE and investigated 46 bridges at 31 sites located in between Santiago and Concepcion. Damaged bridges were mostly simplesupported pretension PC girder without the crossbeams. Such structure system was proposed in terms of the cost reduction and shortening of construction period, which might result in the intensive damage including the unseating of the decks. It would be also remarkable that the rubber bearing unfixed to girder/column might result in extreme movement in the transversal direction during the seismic excitation, which caused deck rotation in the skew bridge. Furthermore, subsidence of substructures was observed in bridges built on the liquefable soil condition.
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© 2010 by Japan Society of Civil Engineers
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