Numerical Fragility Analysis of Vertical-Pile-Supported Wharves in the Western United States

作者：Yang Chuang Sheng Walter^*; DesRoches Reginald; Rix Glenn J

来源：Journal of Earthquake Engineering, 2012, 16(4): 579-594.

DOI：10.1080/13632469.2011.641063

• Wharf
• Fragility Curves
• Seismic Risk Assessment
• Vertical Piles
• Nonlinear Time-History Analysis

This study develops seismic fragility curves for vertical-pile-supported wharves commonly found in the western United States. Nonlinear time-history analyses of a two-dimensional numerical model under two ground motion suites are performed. The results show that the jumbo container cranes increase by 10.8% in the wharf deck drift. By using the experiment-based limit states, the proposed fragility curves demonstrate that, at a PGA of 0.50 g, the probabilities of exceeding slight, moderate, extensive, and complete limit states are approximately 23.0%, 7.0%, 4.0%, and 3.0%, respectively, while at a PGA of 1.00 g, the exceeding probabilities increase to 44.0%, 19.0%, 14.0%, and 11.0%, respectively.

• 出版日期2012