Experimental investigation and modelling of the fire performance of RC columns retrofitted with fabric-reinforced cementitious matrix (FRCM) systems

点击翻译按钮获取中文摘要

We will carry out fire tests on reinforced concrete columns confined with a novel composite system known as fabric-reinforced cementitious matrix (FRCM). FRCM systems consist of one or more layers of non-corrosive textiles made of carbon, glass, or polyparaphenylene benzobisoxazole (PBO) grids that are sandwiched between layers of cementitious mortars. The cementitious mortar act as a shield that provides protection for the embedded fabric, which may contribute to the fire resistance of the system. However, this hypothesis needs to be verified experimentally since FRCM systems have rarely been tested for fire resistance. It is deemed crucial to provide the engineering community with concrete data on their fire resistance prior to being recommended in field applications. Our collaborator will carry out fire tests on FRCM-confined columns in a well designed series of tests. Our team will build on these results to develop a numerical model to simulate the effect of confinement on the overall performance of the confined columns.