Development of Narrow Concrete Beam Reinforced with BFRP Rebar

BFRP筋加固混凝土窄梁的研制

• 批准号: 549340-2019
• 负责人: Das, Sreekanta
• 金额: $ 2.46万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=701373
• 关键词: Development; Narrow; Concrete; Beam; Reinforced

Many buildings in Canada are built using concrete beams and columns as primary load-bearing members. These beams and columns are built using cement concrete and steel reinforcement bars known as steel rebars. Steel rebars are susceptible to corrosion and thus, many reinforced concrete buildings develop cracks leading to safety concerns. This NSERC research project will develop a narrow concrete beam that fits well with prefabricated insulated light-gauge steel wall panels and supports the load safely. These prefabricated wall panels are only 6 in. (150 mm) wide which are required to be used to move towards the implementation of modular construction method which is a fast, economical, and green approach for constructing buildings. Steel rebars cannot be used for making such narrow beams since about 50% of the beam's width or 3 in. (75 mm) will have to be spared as the protecting corrosion cover for the steel rebars. A possible solution to this problem is to use non-corrosive rebars. Hence, this research will develop a new technology for designing and constructing narrow concrete beams using basalt fiber made rebars called BFRP rebars which are corrosion resistant and hence, do not need any protecting concrete cover. BFRP rebars are also stronger, lighter, and are green materials. These rebars are made from a volcanic rock called Basalt. Development of this new concrete beam design and construction technology will allow the industry partner, Bear Construction and Engineering Inc. to adopt the modular construction method and BFRP rebars in future building projects. The other industry partner, MEDA Engineering & Technical Services will also be able to use the new technology in future buildings and other infrastructure project designs. MEDA is also the sole distributor of BFRP rebars and hence, this partner is expected to see a growth in the sale of BFRP rebars. Thus, with the completion of this research project, both partner organizations will gain a competitive edge allowing them to grow their businesses faster and creating new jobs in Canada. The implementation of the modular construction method will also help the environment by reducing waste.

加拿大的许多建筑物都是使用混凝土梁和柱作为主要承重构件建造的。这些梁和柱是使用水泥混凝土和钢筋（称为钢筋）建造的。钢筋容易腐蚀，因此许多钢筋混凝土建筑物会出现裂缝，导致安全问题。 NSERC 的这个研究项目将开发一种窄混凝土梁，该梁能够与预制绝缘轻质钢墙板很好地配合，并安全地支撑荷载。这些预制墙板宽度仅为 6 英寸（150 毫米），需要用于实施模块化施工方法，这是一种快速、经济、绿色的建筑施工方法。钢筋不能用于制作如此窄的梁，因为必须保留梁宽度的约 50% 或 3 英寸（75 毫米）作为钢筋的腐蚀保护层。解决这个问题的一个可能的方法是使用不腐蚀的钢筋。因此，本研究将开发一种新技术，使用玄武岩纤维制成的钢筋（称为 BFRP 钢筋）设计和建造窄混凝土梁，这种钢筋具有耐腐蚀性，因此不需要任何混凝土保护层。 BFRP 钢筋强度更高、重量更轻，并且是绿色材料。这些钢筋由称为玄武岩的火山岩制成。这种新的混凝土梁设计和施工技术的开发将使行业合作伙伴 Bear Construction and Engineering Inc. 在未来的建筑项目中采用模块化施工方法和 BFRP 钢筋。另一个行业合作伙伴 MEDA 工程与技术服务公司也将能够在未来的建筑和其他基础设施项目设计中使用新技术。 MEDA 也是 BFRP 螺纹钢的独家经销商，因此，该合作伙伴预计 BFRP 螺纹钢的销售将会增长。因此，随着该研究项目的完成，两个合作伙伴组织将获得竞争优势，使他们能够更快地发展业务并在加拿大创造新的就业机会。模块化建造方法的实施也将通过减少浪费来帮助环境。