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This paper presents damage of bridges during the 2011 Great East Japan earthquake. Since the bridges in the north Miyagi-ken and south Iwate-ken suffered extensive damage in the 1978 Miyagi-ken-oki earthquake, damage of bridges in the 2011 Great East Japan earthquake is evaluated in comparison with the damage in the 1978 Miyagi-ken-oki earthquake so that effect of the recent progress of seismic design can be evaluated. Tsunami-induced damage was extensive for bridges along the Pacific Coast. Typical feature of tsunami-induced damage is presented based on a field investigation and video movies.
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Kazuhiko Kawashima (2012) studied this question.
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