Reinforced Concrete Pipe (RCP) is widely used in storm and wastewater management owing to its resiliency and reliability. This study proposes nonlinear 3D finite-element models (FEMs) to explore the effects of reinforcement configuration on RCP structural performance. RCP having 825-mm, 1200-mm, and 1800-mm in diameter with the three reinforcement configurations commonly used by industry, namely single-cage, double-cage, and triple-cage, were modelled for evaluating 65D, 100D, and 140D pipe design classes. FEM predicted load–deflection was validated using experimental results on full-scale RCP specimens. Average FEM prediction error of service and ultimate loads was 6.8% and 6.3%, respectively. FEM stress contours suggested agreement with experimental observations. The development of stress in the concrete and steel reinforcement during the there-edge bearing test (TEBT) was evaluated and discussed. A thorough parametric analysis was performed on developed single and double-cage FEMs and demonstrated that the influence of the reinforcement area, cover, positioning, and yield strength on RCP behavior could be rationally captured by the numerical models.

钢筋混凝土管（RCP）由于其弹性和可靠性而广泛用于暴雨和废水管理。这项研究提出了非线性3D有限元模型（FEM），以探索钢筋配置对RCP结构性能的影响。直径为825mm，1200mm和1800mm的RCP具有行业常用的三种钢筋构造，即单笼，双笼和三笼，用于评估65D，100D和140D。管道设计课程。FEM预测的载荷-挠度已通过在大型RCP标本上的实验结果进行了验证。服务和最终载荷的平均FEM预测误差分别为6.8％和6.3％。FEM应力轮廓表明与实验观察结果一致。评估和讨论了在钢筋混凝土钢筋和钢筋混凝土边缘承载试验（TEBT）期间应力的发展情况。对已开发的单笼和双笼有限元进行了彻底的参数分析，结果表明，数值模型可以合理地捕获钢筋面积，覆盖层，位置和屈服强度对RCP行为的影响。