Behavior and Design of Short Reinforced Ultra-High Performance Concrete Columns

This project investigates and extends an existing strength design framework for ultra-high performance concrete (UHPC) columns subject to axial-flexural and pure axial loading. Comparisons between different strength reduction interpolation schemes are evaluated to determine uniformity of safety levels in components. Additionally, the effective lateral stiffness of the experimental columns is calculated and used to develop a new equation for use in second-order elastic analysis of UHPC structures. This data can be used by researchers and practitioners to i) replicate the results of the associated study, ii) evaluate trends in UHPC behavior over a large experimental population, and iii) benchmark any analytical calculations of UHPC strengths against experimental values.

本研究针对承受轴弯组合荷载与纯轴向荷载的超高性能混凝土（ultra-high performance concrete, UHPC）柱，对现有强度设计框架开展研究并进行拓展。本研究对多种强度折减插值方案开展对比评估，以明确构件安全等级的均匀性。此外，本研究对试验柱的有效侧向刚度进行计算，并据此推导得到适用于超高性能混凝土结构二阶弹性分析的全新公式。本数据集可供研究人员与工程从业者使用，可用于：①复现该相关研究的试验结果；②基于大量试验样本分析超高性能混凝土的性能变化趋势；③以试验实测值为基准，对超高性能混凝土强度的各类解析计算结果开展对标验证。