Stochastic event-based regional seismic risk assessment of the bridge network in Quebec

该项目旨在开发高分辨率的地震风险地图，以增强魁北克对其桥梁网络的情况认识，以促进地震规划、管理和应急反应。为了实现这一目标，我们将进行基于随机事件的地震危险性分析，采用和集成新一代易损性模型来评估魁北克典型桥梁类别的地震易损性，综合不同桥梁部件的地震损失函数，并将这些分析模块互联以进行概率区域地震风险模拟。由于地震活动水平的提高，以及城市暴露和脆弱性的增加，加拿大面临着严重的地震风险。该项目将利用区域地震风险评估来提高数百万加拿大东部居民使用的桥梁网络的地震复原力。桥梁风险地图将确定应急路线，以便第一反应人员更好地准备、计划和应对未来的地震。它可以帮助决策者评估高风险地区，并确定抗震改造的关键桥梁的优先顺序。

This project aims to develop a high-resolution seismic risk map to enhance Quebec's situational awareness of its bridge network to facilitate seismic planning, management, and emergency responses. To achieve this, we will conduct stochastic event-based seismic hazard analysis, adapt and integrate a new generation of fragility models to assess the seismic vulnerability of typical bridge classes in Quebec, synthesize seismic loss functions for different bridge components, and inter-connect these analysis modules to perform probabilistic regional seismic risk simulations. Canada is at significant earthquake risk due to the elevated level of seismic activity, and the increases in urban exposure and vulnerability. This project will leverage regional seismic risk assessment to enhance the seismic resilience of the bridge network used by millions of eastern Canadians. The bridge risk map will identify emergency routes for first responders to better prepare, plan for, and react to future earthquakes. It can help decision-makers to assess high-risk areas and prioritize critical bridges for seismic retrofits.