ECC-RC组合柱轴压性能研究
Study on the Axial Compressive Properties of the ECC-RC Composite Column
DOI: 10.12677/hjce.2024.136106, PDF,   
作者: 李佳敏, 许维炳：北京工业大学城市建设学部，北京；袁家权, 江维洪, 段文红, 熊 力：大理大南高速公路有限公司，云南 大理
关键词: ECC；组合柱；轴压；数值模拟；ECC； Composite Column； Axial Compression； Numerical Simulation
摘要: 工程水泥基复合材料(Engineered Cenmentitious Composites, ECC)具有延性高、耗能能力强、裂缝控制能力优异等特点，然而，ECC材料现场施工难度大、质量难以保证、且工程应用成本较高，使得其应用推广受限。有鉴于此，本文提出了一种ECC-RC (Engineered Cenmentitious Composites-Reinforced Concrete, ECC-RC)组合柱，基于ABAQUS平台通过数值仿真分析的方法，探究了ECC强度、箍筋间距、箍筋直径对ECC-RC组合柱轴压力学性能的影响规律。结果表明，ECC强度越大，ECC-RC组合柱的峰值承载能力越好，但延性越差；减小箍筋间距，组合柱的峰值承载力、延性提高幅度较大，试件的轴压力学性能较好；增大箍筋直径时，试件的峰值承载力、延性均可得到一定程度的提高。
Abstract: Engineered cementitious composites (ECC) have the characteristics of high ductility, strong energy consumption ability, and excellent crack control ability. However, the on-site construction difficulty, quality assurance, and high engineering application cost of ECC materials limit their application and promotion. In view of this, this article proposes an ECC-RC (Engineered Cenmentitious Composites-Reinforced Concrete, ECC-RC) composite column, and explores the effects of ECC strength, stirrup spacing and stirrup diameter on the axial compressive properties of the ECC-RC composite column based on the method of numerical simulation analysis on the ABAQUS platform. The results show that the higher the ECC strength, the better the peak bearing capacity of the ECC-RC composite column, but the worse the ductility; reducing the spacing between stirrups results in a significant increase in the peak bearing capacity and ductility of the composite column, and the axial compressive mechanical properties of the specimens are good; when the diameter of the hoop reinforcement is increased, the peak bearing capacity and ductility of the specimen can be improved to a certain extent.
文章引用：李佳敏, 袁家权, 江维洪, 段文红, 熊力, 许维炳. ECC-RC组合柱轴压性能研究[J]. 土木工程, 2024, 13(6): 971-980. https://doi.org/10.12677/hjce.2024.136106

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