NSF I-Corps Teams: Innovative Hurricane Damage Mitigation Systems

NSF I-Corps 团队：创新的飓风损害减轻系统

• 批准号: 1541142
• 负责人: Arindam Chowdhury
• 金额: $ 5万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-05-01 至 2016-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1541142&HistoricalAwards=false
• 关键词: NSF; Corps; Teams; Innovative; Hurricane

A significant proportion of damage to buildings in hurricanes occurs owing to weak connections between the roof and the walls. Innovative connection system is a high priority research topic in building construction and needs careful consideration for new construction as well as for retrofitting existing buildings in hurricane-prone areas. This I-Corps project will help determine the commercial viability of an innovative, efficient, and nonintrusive roof-to-wall connection for wood-frame structures. The new connection system will have significant practical applications in improving the hurricane resiliency of coastal residential buildings by providing means for rapid, cost-effective retrofits through minimally intrusive techniques. The proposed project will serve the national interest as the new technology can significantly enhance built environment sustainability and development of hurricane-resilient communities, thus contributing to greater economic competitiveness of the U.S. coastal region. Strategic alliances with industry and an integrated market-driven approach will help to commercialize such technologies. Streamlined research-to-market process with expeditious technology transfer and commercialization of products has the potential for advancing the national prosperity and welfare by reducing risk to life and fostering new companies in the U.S. coastal states, requiring a skilled workforce, thus creating new jobs. The scope of this I-Corps team project is to demonstrate the readiness to transition a technology that has been developed by previously-funded NSF project. Past studies and experiments have revealed that the performance of traditional hardware-type, intrusive roof-to-wall connections (e.g. hurricane clips, toe-nail connections) can be the cause of serious building safety problems in extreme wind events (e.g. hurricanes). To eliminate these problems an innovative roof-to-wall connection system applicable to residential wood buildings has been developed. The methodology is to use strips of high-performance fiber reinforced polymer (FRP) materials applied with high-strength adhesives to create an effective load path from the roof through the walls. The connection is cost-effective, light, strong, and non-intrusive, and is applicable to new construction as well as for retrofitting of existing buildings that require strengthening against extreme wind loads with minimally intrusive techniques. The strength of the connection is provided by the high tensile strength of the fiber composites. The non-intrusiveness of the system eliminates water-infiltration problems and the strength degradation of the members being connected. The new technology has the potential for significantly contributing to achieving hurricane resilient communities and advancing the state-of-the-art in hurricane damage mitigation.

由于屋顶和墙壁之间的连接较弱，飓风中对建筑物的损害很大一部分发生。创新的连接系统是建筑建设的高优先研究主题，需要仔细考虑新建筑以及在飓风易于的地区改造现有建筑物。这个I-Corps项目将有助于确定用于木框结构的创新，高效且非感知屋顶连接的商业可行性。新的连接系统将通过为快速，具有成本效益的技术通过微不足道的技术提供快速，具有成本效益的改造，在提高沿海居民建筑的飓风弹性方面具有重要的实际应用。拟议的项目将符合国家利益，因为新技术可以大大增强建筑环境的可持续性和飓风富裕社区的发展，从而有助于美国沿海地区的更大经济竞争力。与行业的战略联盟和综合市场驱动的方法将有助于商业化此类技术。通过迅速的技术传输和产品商业化的简化研究到市场流程，有可能通过降低生活风险并促进美国沿海州的新公司，从而促进国家繁荣和福利，从而促进国家繁荣和福利，从而创造新的工作，从而创造新的工作。这个I-Corps团队项目的范围是证明准备过渡到以前资助的NSF项目开发的技术。过去的研究和实验表明，传统的硬件类型，侵入式屋顶与墙的连接（例如飓风夹，脚趾指甲连接）的性能可能是极端风事件中严重建筑安全问题的原因（例如飓风）。为了消除这些问题，已经开发了适用于住宅木材建筑的创新屋顶与壁连接系统。该方法是使用具有高强度粘合剂的高性能纤维增强聚合物（FRP）材料的条带，以从屋顶通过墙壁创建有效的负载路径。该连接具有成本效益，轻巧，强大且不受欢迎，适用于新建筑，以及对需要使用最小侵入性技术来强化极端风负载的现有建筑物的改造。连接的强度由纤维复合材料的高拉伸强度提供。该系统的非侵入性消除了水的渗水问题和所连接的成员的强度降解。这项新技术有可能为实现飓风弹性群落并推进缓解飓风损害的最先进的潜力。