Portal de Periódicos da CAPES

Probabilistic assessment for seismic performance of port structures

2007; Elsevier BV; Volume: 28; Issue: 2 Linguagem: Inglês

10.1016/j.soildyn.2007.05.003

1879-341X

Ung Jin Na, Samit Ray‐Chaudhuri, Masanobu Shinozuka,

Geotechnical Engineering and Soil Stabilization

Past experience has shown that ports are often susceptible to severe damage during earthquakes. From field damage data of 1995 Kobe earthquake, it is observed that the seismic behavior of port structures shows significant variability. In this study, a 2D numerical model, representing PC1 berth located in Port Island, Kobe and damaged in the 1995 Kobe earthquake, has been developed and used to simulate seismic behavior. It has been found that the uncertainties in the friction angle and the shear modulus of reclaimed soil contribute most to the variability of the residual horizontal displacement (RHD) response of the quay wall of port structures. To investigate the propagation of uncertainties of soil–structure system to the quay wall, a tornado diagram and a first-order second-moment analysis are used. Uncertainty of ground motions has also been investigated. Based on the results, design considerations have been provided.