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使用混凝土梁和柱作为主要承重构件。这些梁和柱是用水泥混凝土和被称为钢筋的钢筋建造的。钢筋易受腐蚀，因此，许多钢筋混凝土建筑物出现裂缝，导致安全问题。这个NSERC研究项目将开发一种窄的混凝土梁，它与预制绝缘轻钢墙板很好地配合，并安全地支撑荷载。这些预制墙板只有6英寸。(150 mm）宽，其需要用于实现模块化建造方法，该方法是建造建筑物的快速、经济和绿色方法。钢筋不能用于制造这样的窄梁，因为约50%的梁的宽度或3英寸。(75 mm）将不得不作为钢筋的防腐保护层。解决这个问题的一个可能的办法是使用非腐蚀性钢筋。因此，本研究将开发一种新技术，用于设计和建造窄混凝土梁，使用玄武岩纤维制成的钢筋，称为BFRP钢筋，耐腐蚀，因此，不需要任何保护混凝土保护层。BFRP钢筋也更强，更轻，是绿色材料。这些钢筋是由一种叫做玄武岩的火山岩制成的。这种新的混凝土梁设计和施工技术的发展将使行业合作伙伴，熊建设和工程公司。在未来的建筑工程中采用模块化施工方法和BFRP钢筋。另一个行业合作伙伴梅达Engineering & Technical Services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。梅达亦为BFRP钢筋之独家分销商，因此，预期该合作伙伴之BFRP钢筋销售将有所增长。因此，随着这项研究项目的完成，这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。模块化建筑方法的实施也将通过减少废物来帮助环境。