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This contribution addresses the seat length required to avoid unseating of bridge girders under strong earthquakes. In the investigation simulated ground motions according to the Japanese design spectrum for soft soil site are applied. The analysis of two adjacent bridge structures is performed using a combined finite…

Introduction The 2010-2011 Canterbury earthquake sequence, the 2010 Maule Earthquake in Chile as well as the 2011 Tohoku earthquake in Japan, has shown that saturated loose sandy ground is extremely prone to liquefaction1-4. In the case of Canterbury earthquakes the scale of devastation caused by…