Fire Resistance Behaviour of FRP Reinforced Concrete Slabs

纤维增强聚合物（FRP）钢筋用于建造新的、耐用的混凝土结构，正迅速成为北美基础设施的一种可行选择。虽然FRP加固主要应用于桥梁建设，但FRP加固在多层建筑、停车场和工业结构中具有巨大的潜力。然而，在玻璃钢可用于建筑构件之前，必须确定玻璃钢钢筋混凝土构件满足建筑规范规定的耐火要求的能力。拟议的研究将通过材料测试、全尺寸火灾测试和数值模拟相结合来解决这一知识差距。因此，本研究的主要目的是表征FRP筋的高温材料特性，通过全尺寸火灾试验和数值模拟来评估FRP筋混凝土板在火灾中的性能，并制定FRP筋混凝土板耐火性能的设计准则。材料试验将在高温下对FRP筋进行，而全尺寸火灾试验将在构件水平上评估FRP筋混凝土板的性能。FRP增强板的热性能和结构性能的数值模拟将纳入材料测试的结果，模型将与全尺寸火灾测试的结果进行验证。全面防火测试的结果将与数值模拟相结合，以制定防火设计建议。从研究中获得的知识将使行业合作伙伴（Pultrall和BP自动化）更好地了解其FRP产品在高温下的性能，并在必要时增强其产品。培养博士研究生1名，博士后1名。最后，该项目将为工程研究界提供关于玻璃钢混凝土板在火灾下的性能的新知识，这些知识将被纳入玻璃钢混凝土板的新设计建议中，作为加拿大标准CSA S806玻璃钢建筑的一部分。

Applications of fibre reinforced polymer (FRP) reinforcing bars for creating new, durable concrete structures are rapidly becoming a viable option in North American infrastructure. While FRP reinforcement has mainly been applied for the construction of bridges, there is enormous potential for FRP reinforcement in multi-storey buildings, parking garages, and industrial structures. However, before FRP can be used in structural members in buildings, the ability of FRP reinforced concrete members to meet fire resistance requirements, prescribed in building codes, must be established. The proposed research will address this knowledge gap through a combination of material testing, full-scale fire tests, and numerical modelling. Thus, the main objectives of this research are to characterize the high temperature material properties of FRP bars, to evaluate the performance in fire of FRP reinforced concrete slabs through full-scale fire testing and numerical modelling, and to develop design guidelines for estimating the fire resistance of FRP reinforced concrete slabs. Material tests will be conducted on FRP bars at high temperature while full-scale fire tests will evaluate the performance of FRP reinforced concrete slabs at the component level. Numerical modelling of the thermal and structural performance of FRP reinforced slabs will incorporate the results of the material tests, and the models will be validated against the results from the full-scale fire tests. The results of the full-scale fire tests will be combined with numerical modelling to develop design recommendations for fire resistance. The knowledge gained from the research will allow the industry partners (Pultrall and BP Automation) to better understand the performance of their FRP products at high temperature, and if necessary, to enhance their products. One PhD student and one postdoctoral fellow will be trained. Finally, the project will contribute to the engineering research community by generating new knowledge on the performance of FRP reinforced concrete slabs when exposed to fire that will be incorporated into new design recommendations for FRP reinforced concrete slabs as part of the Canadian Standard CSA S806 on FRP for buildings.