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

用于混凝土结构的结构集成固定复合模板

• 批准号: 261498-2008
• 负责人: Fam, Amir
• 金额: $ 1.75万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=395047
• 关键词: Structurally; integrated; stay; place; composite

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)

安大略省的15,000座桥梁中约有32%需要修复或更换。在quacimbec，这一比例为52%，预计未来10年的成本为50亿美元。这个项目引入了一项新技术，它将改变我们建造桥梁和其他基础设施的方式，使施工更快、更简单，设计寿命更长。现成的玻璃纤维截面和板将用作桥面、停车场和海洋平台的混凝土浇筑的开放形式。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加固。钢筋腐蚀是基础设施危机迫在眉睫的一个主要原因。由于模板被保留在原位且无腐蚀性，该项目有望解决交通延误和道路封闭等重大问题，这些问题会损害经济，桥面暴露在除冰盐下的耐久性，以及混凝土硬化后模板的移除。将使用该技术建立结构模型，并在实验室进行失效测试，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，并用于参数化研究，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，以提高加拿大人的生活质量。申请人广泛研究了玻璃纤维管填充混凝土作为桩、柱或杆的封闭形式。他现在被认为是该领域的领导者，并担任加拿大研究主席。他还将把这项工作扩展到包括桥梁柱缝和公路标志。在资助期内，2名博士和5名硕士学生将被培训为未来的工程师，能够充满信心和热情地将技术从实验室转移到现场。培训包括批判性思维、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、演讲、团队合作和网络。以前的毕业生。申请人的学生受雇于一些顶级公司/机构，包括Delcan Corp和MTO（桥梁）和Carl Walker Inc（停车场建筑）。