Damage to coastal structures

摘要: Abstract On March 11, 2011, the largest earthquake ever recorded in Japan struck off coast of Tohoku region country, and was subsequently named 2011 Pacific Earthquake by Metrological Agency. The M w 9.0 generated strong motions that affected island Honshu from Tokyo Bay to northern extent island, induced a series tsunamis devastated coastal communities throughout region. Significant aftershocks ( >7) were experienced further contributed damage during emergency response recovery efforts. This paper summarizes findings Port Airport Research Institute (PARI) research team as it investigated structures along approximately 600 km coastline well team׳s follow-up experiments analyses. Two characteristics ground motion observed long duration high-frequency component. For this reason, degree caused facilities relatively small. wide-ranging investigation PARI facilitated interpretation patterns across entire earthquake, with primary goal distinguishing resulting shaking secondary effects (such liquefaction, failures, settlement) subsequent significant tsunami inundation.