Fire Resistance Behaviour of FRP Reinforced Concrete Slabs

纤维增强聚合物（FRP）钢筋的应用，创造新的，耐用的混凝土结构正在迅速成为一个可行的选择，在北美的基础设施。虽然FRP加固主要应用于桥梁建设，但FRP加固在多层建筑、停车库和工业结构中具有巨大的潜力。然而，在FRP可用于建筑物中的结构构件之前，必须确定FRP加固混凝土构件满足建筑规范中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缺口。因此，本研究的主要目标是表征FRP筋的高温材料性能，通过全尺寸防火试验和数值模拟来评估FRP钢筋混凝土板的防火性能，并制定设计准则来估计FRP钢筋混凝土板的耐火性能。材料测试将在高温下对玻璃钢筋进行，而全尺寸防火测试将在组件层面评估玻璃钢钢筋混凝土板的性能。FRP加固板的热性能和结构性能的数值模拟将结合材料试验的结果，并将根据全尺寸火灾试验的结果对模型进行验证。全尺寸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 Automation）更好地了解其玻璃钢产品在高温下的性能，并在必要时改进其产品。将培养一名博士生和一名博士后研究员。最后，该项目将有助于工程研究界产生新的知识，对性能的玻璃钢钢筋混凝土板时，暴露于火灾，将被纳入新的设计建议，玻璃钢钢筋混凝土板的一部分，加拿大标准CSA S806的玻璃钢建筑物。

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.