PFI:AIR - TT: A Hybrid Metal/Glass Composite System for Multihazard Resilient Bridge Columns

这个PFI：空气技术翻译项目专注于翻译一种新的桥柱系统，以满足对具有成本效益和可持续发展的桥梁的需求，这些桥梁对地震、恐怖袭击、船只碰撞/火灾和腐蚀性环境等自然和人为危险具有弹性。混合金属-玻璃复合柱系统非常重要，因为我们国家迫切需要耐用和安全的交通基础设施。传统的结构材料，如钢筋混凝土和钢材，容易受到各种危险和环境条件的影响。传统的桥梁施工方法造价高、耗时长，并会造成严重的交通中断。该产品能够加快新桥梁的建设，增加工作区域的安全性，减少旅行延误，从而优化公共资金的管理，以发展国家-S基础设施。该项目将产生一种新型混合复合柱体系的概念验证。这种混合复合材料系统融合了钢铁材料独特的能量耗散、玻璃纤维优异的强度重量比和聚合物树脂的卓越耐久性。这些特点提供了以下优势：与该市场领域中领先的竞争系统，如传统的玻璃钢管混凝土(CFFT)系统相比，具有卓越的结构性能、耐久性、成本效益和施工简便性。该项目解决了从研究发现转化为商业应用的以下技术差距：1)了解混杂钢-玻璃复合材料的形态，2)验证立柱系统的优越结构性能，3)开发可靠的结构设计方法，4)识别和解决潜在的可伸缩性和制造困难。在不同的加载条件下，对不同复合材料结构的管子进行了一系列的结构试验。这将得到高保真有限元模拟的补充，以优化原型的设计。最终设计完成后，将进行大型桥柱的结构试验。此外，参与该项目的人员包括多名研究生和本科生，其中一些来自代表性不足的群体，他们将通过与行业合作伙伴的合作以及与交通部门和桥梁建设公司的沟通，获得创业和技术翻译经验。该项目与NOV玻璃纤维系统公司合作，提供纤维缠绕复合管制造方面的专业知识，并在这项技术从研究发现转化为商业现实的过程中进入其测试设施。

This PFI: AIR Technology Translation project focuses on translating a novel bridge column system to fill the need for cost-effective and sustainable bridges that are resilient to natural and man-made hazards such as earthquakes, terrorist attacks, vessel collisions/fires, and corrosive environments. The hybrid metal-glass composite column system is important because our nation is in critical need for durable and safe transportation infrastructure. Conventional structural materials, such as reinforced concrete and steel, are vulnerable to various hazards and environmental conditions. Traditional bridge construction methods are expensive, time consuming, and cause major traffic interruptions. This product enables accelerated construction of new bridges, increased work zone safety, and reduction of travel delays, which optimizes the stewardship of public funds to grow the nation?s infrastructure. The project will result in the proof-of-concept of a novel hybrid composite column system. This hybrid composite system integrates the unique energy dissipation of steel material, the excellent strength-to-weight ratio of glass fibers, and the exceptional durability of polymeric resins. These features provide the following advantages: superior structural performance, durability, cost-efficiency, and ease of construction when compared to the leading competing systems like conventional concrete-filled FRP tube (CFFT) systems in this market space. This project addresses the following technology gaps as it translates from research discovery toward commercial application: 1) understanding morphology of hybrid steel-glass composites, 2) validating superior structural performance of the column system, 3) developing reliable structural design methodology, and 4) identifying and addressing potential scalability and manufacturing difficulties. A series of structural experiments will be performed on tubes with diverse composite architecture under various loading conditions. This will be complemented by high fidelity finite element simulations to optimize the design of the prototype. After finalizing the design, structural testing of a large-scale bridge column will be performed. In addition, personnel involved in this project including multiple graduate and undergraduate students, some from underrepresented groups, will receive entrepreneurship and technology translation experiences through collaboration with industry partners and communication with Departments of Transportation and bridge construction companies. The project engages NOV Fiber Glass Systems to provide expertise in manufacturing of filament wound composite tubes and access to their testing facility in this technology translation effort from research discovery toward commercial reality.