PFI-TT: Performance-Based Risk Assessment and Mitigation Tool for Buildings under Extreme Wind Events

该PFI项目的更广泛影响/商业潜力是最大限度地减少每年因建筑物和其他类似结构的风相关损坏而造成的人员和金钱损失。近年来，风灾害造成了巨大的建筑物维修费用，给业主和保险公司带来了巨大的负担。为了减少建筑物对极端风事件（例如飓风和龙卷风）的脆弱性，需要整体平台来（1）估计给定区域中风暴发生的预期强度和频率下的建筑物的故障风险;以及（2）通知相关实体，包括设计顾问、承包商、利益相关者和保险公司，如何通过创新设计和缓解策略避免失败风险。虽然有关机构和公司在一定程度上研究了前一方面，但由于技术复杂、预算限制以及缺乏支持性指南和工具，后一方面基本上尚未探讨。这促使开发了第一个基于风性能的风险评估和缓解工具。拟议的项目将产生一个多用途工具，以改变受风危害的建筑物的分析和设计。这是一项独特的创新，因为它首次将风险评估和缓解的概念结合在一起，以最大限度地提高大风地区建筑物的安全性和性能。出于评估目的，该工具依赖于基于性能的理念，该理念提供了多种功能，以优化设计，从而最大限度地降低成本，同时实现目标性能目标。另一方面，出于缓解目的，实施决策算法以考虑多种策略并基于一系列性能、成本和风险度量来确定最佳解决方案。这将是向前迈出的重要一步，以应对阻碍建筑部门确保建筑物安全和舒适性的挑战。然而，拟议工具的创新将不仅限于其模拟能力，数据驱动算法和预测模型，因为它将提供一个平台，大大促进参与财务，设计，维护，该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准。

The broader impact/commercial potential of this PFI project is to minimize human and monetary losses incurred every year due to wind-related damage to buildings and other similar structures. In the recent years, wind hazards have caused significant building repair costs, placing tremendous burden on their owners and insurance companies. To reduce the vulnerability of buildings to extreme wind events, such as hurricanes and tornadoes, a holistic platform is required to (1) estimate the risk of failure of a building under the expected intensity and frequency of occurrence of windstorms in a given region; and (2) inform the involved entities, including design consultants, contractors, stakeholders, and insurance companies, on how to avoid the risk of failure through innovative design and mitigation strategies. While the former aspect has been studied to some extent by the involved agencies and companies, the latter aspect has remained largely unexplored, due to technical complexities, budget constraints, and the absence of supporting guides and tools. This has motivated the development of the very first wind performance-based risk assessment and mitigation tool.The proposed project will result in a multi-purpose tool to transform the analysis and design of buildings subjected to wind hazards. This is a unique innovation, as it employs, for the first time, the concepts of risk assessment and mitigation together to maximize the safety and performance of buildings in high-wind areas. For assessment purposes, this tool relies on a performance-based philosophy, which offers versatile capabilities to optimize the design in such a way that the cost is minimized, while the target performance objectives are achieved. On the other hand, for mitigation purposes, a decision-making algorithm is implemented to consider multiple strategies and identify the best solution based on a range of performance, cost, and risk metrics. This will be an important step forward to address the challenges that have prevented the building sector from ensuring the safety and comfort of buildings against wind loads. The innovation of the proposed tool, however, will not be limited to its simulation capabilities, data-driven algorithms, and predictive models, as it will deliver a platform that greatly facilitates the communication and collaboration among various entities involved in the finance, design, maintenance, and insurance of buildings.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.