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

这个PFI: AIR技术翻译项目的重点是翻译一种新颖的桥梁柱系统，以满足对具有成本效益和可持续发展的桥梁的需求，这些桥梁能够抵御自然和人为灾害，如地震、恐怖袭击、船舶碰撞/火灾和腐蚀性环境。金属-玻璃复合柱系是我国交通基础设施的重要组成部分。传统的结构材料，如钢筋混凝土和钢材，容易受到各种危害和环境条件的影响。传统的桥梁施工方法既昂贵又费时，还会造成交通中断。该产品加速了新桥的建设，提高了工作区域的安全性，减少了旅行延误，从而优化了公共资金的管理，促进了国家的发展。年代的基础设施。该项目将产生一种新型混合复合柱系统的概念验证。这种混合复合材料系统集成了钢材料独特的能量耗散，玻璃纤维优异的强度与重量比，以及聚合物树脂的卓越耐久性。这些特点提供了以下优势：优越的结构性能，耐用性，成本效益，和易于施工相比，领先的竞争系统，如传统的混凝土填充FRP管（CFFT）系统在这个市场空间。从研究发现到商业应用，该项目解决了以下技术差距：1)了解混合钢-玻璃复合材料的形态，2)验证柱系统的优越结构性能，3)开发可靠的结构设计方法，以及4)识别和解决潜在的可扩展性和制造困难。一系列的结构试验将在不同的载荷条件下进行。这将辅以高保真有限元模拟，以优化原型的设计。设计完成后，将进行大型桥柱结构试验。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，将通过与行业合作伙伴的合作以及与交通部和桥梁建设公司的沟通，获得创业和技术翻译经验。该项目聘请NOV纤维玻璃系统公司提供制造长丝缠绕复合管的专业知识，并在从研究发现到商业现实的技术转化过程中使用他们的测试设施。

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.