Pile-supported wharves/piers are often subjected to extreme forces caused by coastal hazards. For instance, hurricanes Katrina (2005) and Wilma (2005) caused significant structural damage to pile-supported piers (Gutierrez et al. 2006) and wharves (Bardi et al. 2007), respectively. The problem becomes more pressing as the hazard exposure of these structures evolves with sea level rise caused by climate change (Lamberti et al. 2011). Thus, in light of gaps in the risk assessment of these structures in hurricane prone regions, Balomenos and Padgett (2018a) proposed the first probabilistic framework for developing analytical fragility models for pile-supported wharves/piers vulnerable to hurricane-induced storm surge and waves. Then, Balomenos and Padgett (2018b) adopted this framework to provide an initial exploration into the sensitivity of the fragility estimate to epistemic uncertainties in the wave load model. However, considering that the wave period may have a significant variation at or near the coast based on reported periods during hurricanes Katrina and Rita (Dietrich et al. 2011), this study further explores the influence of hazard parameter variation on the resulting failure probability of these structures, while propagating uncertainties in other parameters such as concrete compressive strength, deck thickness, etc.
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机译：桩支撑码头/码头经常受到海岸危险造成的极端作用力。例如，卡特里娜飓风（2005）和威尔玛（2005）分别对桩支墩（Gutierrez et al。2006）和码头（Bardi et al。2007）造成了重大的结构性破坏。随着这些结构的危害暴露随着气候变化引起的海平面上升而演变，这个问题变得更加紧迫（Lamberti等人，2011）。因此，鉴于飓风易发地区这些结构的风险评估存在差距，Balomenos和Padgett（2018a）提出了第一个概率框架，用于为易受飓风引发的风暴潮和海浪袭击的桩支撑码头/码头开发分析性脆弱性模型。 。然后，Balomenos和Padgett（2018b）采用了该框架，以初步探讨了脆弱性估计对波浪载荷模型中认知不确定性的敏感性。然而，考虑到根据卡特里娜飓风和丽塔飓风的报告周期，波浪周期可能在海岸或附近有显着变化（Dietrich等人，2011年），本研究进一步探讨了危害参数变化对最终飓风失败概率的影响。这些结构，同时传播其他参数的不确定性，例如混凝土的抗压强度，桥面厚度等。
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