RELATIVE DISPLACEMENT EVALUATION OF CAISSON WALLS FOR SEISMIC DESIGN OF CONTAINER CRANES ON QUAY WALLS

Abstract

 The seismic design of quay walls and cargo handling facilities are important since the functional loss of ports may cause severe economic loss in the region. One of the most severe damages to cargo handling function is the damage to the rail for container crane induced by relative displacement of quay wall face line. The detail of damages to caisson walls in 1995 Hyogo-ken nambu earthquake was investigated to establish a rational evaluation method for relative displacement of caisson walls. As a result, the relation-ships between permissible relative displacement and damage probability were clarified considering the length of berth. The results are useful for performance based seismic design for quay walls.