The danger of fire is present always and everywhere. The imminent danger depends upon the actual type and length of fire exposure. Reinforced concrete structural members are loadbearing components in buildup structures and are therefore at high risk, since the entire structure might potentially collapse upon their failure. Thus, it is imperative to comprehend the behavior of reinforced concrete members at high temperatures in case of fire. In this study, the mechanical properties of concrete exposed to high temperatures were experimentally determined through the testing of 27 concrete cylinder starting at room temperature and increasing up to 260 °C. The concrete material behavior was implemented into the ABAQUS software and a finite simulation of reinforced concrete beams exposed to actual fire conditions were conducted. The finite element models compared favorably with the available experimental results. Thus, providing a valuable tool that allows for the prediction of failure in case of a fire event.

中文翻译：

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钢筋混凝土梁在高温下的实验行为的数值模拟

随时随地都有火灾的危险。即将发生的危险取决于火灾的实际类型和持续时间。钢筋混凝土结构构件是堆积结构中的承重构件，因此风险很高，因为整个结构在破坏后可能会坍塌。因此，必须了解发生火灾时钢筋混凝土构件在高温下的性能。在这项研究中，暴露于高温下的混凝土的机械性能是通过测试27个混凝土圆柱体从室温开始并升高到260°C的实验来确定的。在ABAQUS软件中实现了混凝土材料的性能，并对暴露于实际火灾条件下的钢筋混凝土梁进行了有限元模拟。有限元模型与可用的实验结果相比具有优势。因此，提供了一种有价值的工具，该工具可以在发生火灾时预测故障。