Abstract
The present earthquake resistant design method for sheet pile quay walls with vertical pile anchorage against level-one eathquake motion employs the static method which uses the perforance criteria as the stress becomes smaller than the allowable stress. Considering the serviceability of quay walls, however, deformantion shall be smaller than the allowable value in view of the bertihng capability of ships afetr the earthquake. We studied the correlation between the deformation and section forces of sheet pile quay walls by using the two-dimensional earthquake response analyses. It was found that deformation is the governing factor for sheet pile quay walls with vertical pile anchorage from the serviceability point of view. Therefore, performance criteria for sheet pile quay walls with vertical pile anchorage against level-one earthquake motion shoud be determined in terms of deformation. It was also found that safety margin of sheet pile, tie-rod and vertical pile differ from each other.
