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

用织物增强水泥基 (FRCM) 系统改造的 RC 柱防火性能的实验研究和建模

• 批准号: 576925-2022
• 负责人: ElRefai, AhmedA
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=753852
• 关键词: Experimental; investigation; modelling; fire; performance

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.

我们将进行火灾试验的钢筋混凝土柱限制与一种新的复合系统称为织物增强水泥基质（FRCM）。FRCM系统由一层或多层由碳、玻璃或聚对苯撑苯并二恶唑（PBO）网格制成的非腐蚀性织物组成，这些网格夹在水泥砂浆层之间。水泥砂浆作为一个盾牌，为嵌入式织物提供保护，这可能有助于系统的耐火性。然而，这一假设需要通过实验来验证，因为FRCM系统很少进行耐火性测试。在推荐现场应用之前，向工程界提供有关其耐火性的具体数据至关重要。我们的合作者将在一系列精心设计的测试中对FRCM约束柱进行火灾测试。我们的团队将在这些结果的基础上开发一个数值模型来模拟约束对约束柱整体性能的影响。