融合虚拟和真实环境以可视化地震灾害和风险
Merging Virtual and Real Environments for Visualizing Seismic Hazards and Risk
摘要：
在过去的几十年里，地震研究在学术界、工业界和政府部门的地震灾害和风险建模方面取得了相当大的进展。高性能计算和可视化等技术进步可以进一步促进地震灾害和风险研究。这项工作利用马奎特可视化实验室的CAVE可视化地震灾害和风险，集成灾害表征，结构建模和应急响应。在基于性能的地震工程框架的基础上，将地震危害与结构反应联系起来的场地特定地震动作为结构模型的荷载输入。由此产生的结构响应，然后可以转换为损坏状态的建筑元件在直接的房间环境的基础上的脆弱性功能。为了说明这一点，我们显示了一张洛杉矶地区的地图，其中包含Mw7.8 ShakeOut场景的地面运动，在遭受地震震动的住宅楼中创建了一个虚拟房间，并在这种沉浸式环境中模拟了紧急响应。直观的可视化可以扩展到各种场景，并有助于向公众传达特定于现场和结构的危害和风险。
英文摘要：
Earthquake research in the last few decades has led to considerable advances in seismic hazard and risk modeling across academia, industry, and government. Technological advances such as high performance computing and visualization can further facilitate earthquake hazard and risk research. This work utilizes the CAVE of the Marquette Visualization Laboratory to visualize seismic hazards and risk by integrating hazard characterization, structural modeling, and emergency response. Building upon the framework of performance-based earthquake engineering, site-specific ground motions, which link seismic hazards to structural responses, serve as loading inputs to structural models. The resulting structural responses can then be translated into damage states of building elements in the immediate room environment based on fragility functions. To illustrate, we display a map of the Los Angeles region with ground motions for the Mw7.8 ShakeOut scenario, create a virtual room in a residential building subjected to such earthquake shaking, and simulate emergency response in this immersive environment. The illustrative visualization can be extended to various scenarios and help communicate site- and structure-specific hazards and risk to the general public.
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