CAREER: Integration of Steel Grain Bin Vulnerability and Rural Community Resilience for Multiple Hazards

职业：钢制粮仓脆弱性与农村社区对多种灾害的抵御能力的整合

• 批准号: 2340843
• 负责人: Christine Wittich
• 金额: $ 61.54万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-09-01 至 2029-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2340843&HistoricalAwards=false
• 关键词: CAREER; Integration; Steel; Grain; Bin

This Faculty Early Career Development (CAREER) award will advance understanding of the performance of steel grain bins and the resilience of agriculturally based rural communities to natural hazards, particularly earthquakes and windstorms. The resilience of rural and agricultural communities typically lags behind their more urban counterparts, in part due to their unique infrastructure, and this project will take an integrated research and education approach to enhance their resilience. Findings related to the performance of steel grain bins will be translated directly to manufacturers. An integrated infrastructure and rural community resilience model will enable individual communities to evaluate their resilience accounting for their unique built environment. The education plan will contribute to diversifying and enhancing the future STEM workforce by increasing the number of rural students pursuing and persisting in engineering at the university level, where currently there exists a substantial gap between urban and rural students. A citizen science reconnaissance platform will be developed to further engage a wide range of rural citizens in the study and practice of disaster resilience. This project will contribute to the National Science Foundation (NSF) role in the National Earthquake Hazards Reduction Program (NEHRP) and the National Windstorm Impact Reduction Program (NWIRP). This overarching goal of this project is to generate a fundamental understanding of the performance of steel grain bins and the resilience of agriculturally based rural communities when subjected to earthquakes and straight-line windstorms. To reach this goal, the research plan will be comprised of two major research thrusts: steel grain bin vulnerability and community resilience impact assessments. Major research tasks for the steel grain bin will include high-fidelity numerical modeling of steel grain bins, large-scale seismic and aeroelastic testing, and development of metamodels to facilitate fragility analyses relating the hazard intensity to damage probabilities for a range of grain bins. Major tasks associated with the community resilience thrust will include the development of an agricultural community resilience model, which will be validated with respect to longitudinal structural and community reconnaissance, and the evaluation of mitigative measures to enhance resilience. This research will use the NSF-supported Natural Hazards Engineering Research Infrastructure (NHERI) Wall of Wind facility at Florida International University for aeroelastic testing and will archive and make publicly available project data in the NHERI Data Depot (https://www.DesignSafe-ci.org).This project is jointly funded by the Engineering for Civil Infrastructure (ECI) program and the Established Program to Stimulate Competitive Research (EPSCoR).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.

这个学院早期职业发展（Career）奖将促进对钢粮仓性能和农业农村社区对自然灾害（特别是地震和风暴）的恢复能力的理解。农村和农业社区的复原力通常落后于城市社区，部分原因在于其独特的基础设施，该项目将采取综合研究和教育方法来增强其复原力。有关钢粮仓性能的调查结果将直接传达给制造商。综合基础设施和农村社区复原力模型将使各个社区能够根据其独特的建筑环境评估其复原力。该教育计划将增加农村学生在大学阶段攻读和坚持工程专业的人数，从而有助于多样化和提高未来的STEM劳动力，目前城乡学生之间存在巨大差距。将开发一个公民科学侦察平台，进一步吸引广大农村公民参与抗灾能力的研究和实践。该项目将有助于国家科学基金会（NSF）在国家减少地震灾害计划（NEHRP）和国家减少风暴影响计划（NWIRP）中的作用。该项目的总体目标是对钢粮仓的性能和农业农村社区在遭受地震和直线风暴时的恢复能力有一个基本的了解。为了实现这一目标，研究计划将包括两个主要研究重点：钢粮仓脆弱性和社区恢复力影响评估。钢仓的主要研究任务将包括钢仓的高保真数值模拟、大规模地震和气动弹性测试，以及开发元模型，以促进将一系列粮仓的危害强度与损坏概率联系起来的易损性分析。与社区复原力推力相关的主要任务将包括制定农业社区复原力模型，该模型将通过纵向结构和社区侦察进行验证，并评估增强复原力的缓解措施。这项研究将使用美国国家科学基金会支持的佛罗里达国际大学自然灾害工程研究基础设施（NHERI）风力墙设施进行气动弹性测试，并将在NHERI数据存储库（https://www.DesignSafe-ci.org）.This项目由土木基础设施工程（ECI）计划和刺激竞争研究（EPSCoR）既定计划共同资助)中存档并公开项目数据。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。