Structurally integrated stay-in-place composite forms for concrete structures

安大略15,000座桥梁中约有32%需要修复或更换。在魁北克，这一比例为52%，预计未来10年的成本为50亿美元。该项目引入了一项新技术，将通过更快、更简单的施工和更长的设计寿命来改变我们建造桥梁和其他基础设施的方式。现成的玻璃纤维型材和板材将用作桥面、停车场和海上平台混凝土浇筑的开放式模板。然后，它们被永久地留在原地，提供完全或部分取代内部钢筋的钢筋。钢筋腐蚀是迫在眉睫的基础设施危机的主要原因。 由于模板留在原位且无腐蚀性，该项目有望解决主要问题，如交通延误和道路封闭，损害经济，桥面暴露于除冰盐的耐久性，以及混凝土硬化后拆除模板的可达性。将使用该技术构建结构模型，并在实验室中进行失效测试，以评估其性能，强度和失效模式。将开发数学模型，使用测试结果进行验证，并用于参数研究，为工程师制定设计指南。事实上，该项目的结果有望节省大量用于基础设施维修或更换的税款，使这些资金能够用于其他投资，以改善加拿大人的生活质量。申请人已经广泛研究了作为桩、柱或杆的封闭形式的填充玻璃纤维管的混凝土。他现在被认为是一个领导者，并在这一领域拥有加拿大研究主席。他还将扩大这项工作，包括桥梁柱接头和公路标志。在资助期间，2名博士生和5名硕士生将被培养为未来的工程师，能够满怀信心和热情地将技术从实验室转移到现场。培训涉及批判性思维，解决问题，实践经验，实验室测试，数据分析，计算机建模，技术写作，演示，团队合作和网络。以前的格拉德。申请人的学生被一些顶级公司/机构雇用，包括Delcan Corp和MTO（桥梁）和Carl步行者Inc（停车场结构）

About 32% of Ontario's 15,000 bridges need rehabilitation or replacement. In Québec, this percentage is 52%, with an estimated cost of $5B over the next 10 years. This project introduces a new technology that will change the way we build bridges and other infrastructure by enabling much faster and simpler construction and a longer design life. Readily available fiberglass sections and plates will be used as open forms for concrete casting in bridge decks, parking garages and marine platforms. They are then left in place permanently, providing reinforcement that fully or partially replaces internal steel bars. Corrosion of steel bars is a major contributor to the looming infrastructure crisis. Because the forms are left in place and are noncorrosive, the project promises solutions for major problems such as traffic delays and road closures that hurt the economy, durability as in bridge decks exposed to deicing salts, and accessibility for removal of forms after concrete hardening. Structural models will be built using this technology and tested to failure in the lab, to evaluate their performance, strength and failure mode. Mathematical models will be developed, verified using test results and used in parametric studies to develop design guides for engineers. Indeed, results of the project promises substantial savings in tax dollars spent on infrastructure repair or replacement, allowing these funds to be used in other investments to improve quality of life for Canadians. The applicant has extensively studied concrete filled fiberglass tubes as closed forms for piles, columns or poles. He is now considered a leader and holds a Canada Research Chair in this area. He will also extend this work to include bridge column joints and highway signage. During the funding period, 2 PhD and 5 MSc students will be trained as future engineers capable of transferring technology from the lab to the field with confidence and enthusiasm. Training involves critical thinking, problem solving, hands-on experience, lab testing, data analysis, computer modeling, technical writing, presenting, team work and networking. Former grad. students of the applicant are hired by some of the top companies/agencies, including Delcan Corp and MTO (bridges) and Carl Walker Inc (parking structures)