In this paper, the flexural characteristics of stainless steel (SS) reinforced concrete beams are studied and analyzed. We mainly focus on their crack mode, failure mode, load-deflection curve, and bearing capacity. Six beams with test parameters, including the diameter of reinforcement, the type of the reinforcement, and the stirrup spacing, were tested in 4-point bending. The test results indicate that the failure mode of SS reinforced concrete beam can be divided into three stages: elastic stage, cracking stage, and failure stage. The midspan section deformation of SS reinforced concrete beam conforms to the assumption of plane section. Under the same reinforcement condition, the normal section and the oblique section bearing capacities of the SS reinforced concrete beams are significantly higher than those of the ordinary reinforced concrete beams. In addition, the prediction of cracking moment and bearing capacity calculated by ACI 318-14 and GB 50010-2010 was also evaluated. The calculation results of the two codes were safe and conservative, and GB 50010-2010 provided more accurate prediction of cracking moments. Furthermore, to verify the reliability of the test results, finite element models were established and the analytical results corroborated well with the test results.

中文翻译：

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不锈钢钢筋混凝土梁抗弯性能的试验和理论研究

本文研究和分析了不锈钢（SS）钢筋混凝土梁的抗弯特性。我们主要关注它们的裂纹模式，破坏模式，载荷挠度曲线和承载能力。在4点弯曲中测试了六个具有测试参数的梁，包括钢筋的直径，钢筋的类型和箍筋间距。试验结果表明，SS钢筋混凝土梁的破坏模式可以分为三个阶段：弹性阶段，开裂阶段和破坏阶段。SS钢筋混凝土梁的中跨截面变形符合平面截面的假设。在相同的加固条件下 SS钢筋混凝土梁的正常截面和斜截面承载力明显高于普通钢筋混凝土梁。此外，还评估了根据ACI 318-14和GB 50010-2010计算的开裂力矩和承载能力的预测。这两个规范的计算结果是安全和保守的，GB 50010-2010提供了更准确的开裂力矩预测。此外，为验证测试​​结果的可靠性，建立了有限元模型，分析结果与测试结果很好地吻合。GB 50010-2010提供了更准确的开裂力矩预测。此外，为验证测试​​结果的可靠性，建立了有限元模型，分析结果与测试结果很好地吻合。GB 50010-2010提供了更准确的开裂力矩预测。此外，为验证测试​​结果的可靠性，建立了有限元模型，分析结果与测试结果很好地吻合。