锈蚀箍筋约束混凝土的轴压性能是多龄期RC结构进行弹塑性分析与抗震性能研究的基础,准确研究其劣化规律,对于多龄期RC结构耐久性能评估、剩余抗震能力预测和数值模拟等方面具有重要作用。本文从试验方法、抗压强度和应力-应变本构关系等方面综述了锈蚀箍筋约束混凝土轴压性能研究现状。详细介绍了不同的试验方法,并系统分析其优缺点和适用性；归纳总结了锈蚀箍筋约束混凝土抗压性能影响因素、抗压性能退化模型和应力-应变本构关系模型；对当前锈蚀箍筋约束混凝土轴压性能研究中存在的不足及研究趋势进行了分析。总结既有研究成果表明:现阶段关于重复荷载作用下锈蚀箍筋约束混凝土应力-应变本构关系的研究十分有限。最后,对现有研究中存在的不足及研究趋势进行了相关讨论。

The axial compression performance of rusted hoop confined concrete is the basis of elastoplastic analysis and seismic performance research of multi-age RC structures. The accurate study of its deterioration rule is of great importance for durability evaluation, residual seismic capability prediction and numerical simulation of multi-age RC structures. In this paper, the research status of axial compression behavior of concrete restrained by rusted stirrup is reviewed from the aspects of test method, compressive strength and stress-strain constitutive relation. Different test methods are introduced in detail, and their advantages, disadvantages and applicability are analyzed systemati cally.The factors influencing the compressive strength of concrete restrained by rusted stirrup, the degradation model of compressive performance and the stress-strain constitutive relation model are summarized. The shortcomings and research trends of the current research on the axial compression performance of concrete confined by rusted stirrup are analyzed. Summary of the existing research results show that the current research on the stress-strain constitutive relationship of rusted stirrup confined concrete under repeated loads is very limited. Finally, the shortcomings and research trends of the existing research are discussed.

国家自然基金(52278530)；陕西省重点研发计划项目(2021ZDLSF06-10)；