Data for: Shear-Torsion-Bending Interaction in RC Beams according to NBR 6118/2014 and AASHTO LRFD 2014

Reinforced concrete beams are subjected to bending, torsion and shear simultaneously. The interaction of combined loading is complex and demands a unified model for analysis and design. Using the models from NBR 6118/2014 (variable angle truss model with parallel chords) and AASHTO LRFD Bridge Design Specifications 2014 (Modified Compression Field Theory), an algorithm was created, converting the resistance problem into a constrained optimization problem and generating an interaction surface that also displays the active constraints for each degree of interaction. Applying it to three beams previously tested, the experimental data was plotted against the surface obtained by the standards. The procedure and its optimization approach were efficient and effective in predicting the beams’ resistance. Comparison between the interaction surfaces, empirical data and existing literature showed the procedure and the standards were consistent and its application simple and practical. This dataset contains the optimization algothims and post-processing algorithms, including colormaps used for generating the surfaces and experimental data used for validation.

钢筋混凝土梁在弯曲、扭转和剪切力作用下同时承受载荷。这种复合加载的相互作用复杂，需要建立一个统一的分析与设计模型。通过采用 NBR 6118/2014（具有平行弦的变角桁架模型）和 AASHTO LRFD 桥梁设计规范 2014（改进的压缩场理论）中的模型，创建了一个算法，将抗力问题转化为约束优化问题，并生成了一个同时显示各相互作用度数下有效约束的交互作用面。将该算法应用于先前测试过的三根梁，将实验数据与通过标准获得的表面进行对比。该程序及其优化方法在预测梁的抗力方面表现出高效性和有效性。对交互作用面、经验数据和现有文献的比较表明，该程序与标准一致，其应用简便且实用。此数据集包含优化算法和后处理算法，以及用于生成表面的色图和用于验证的实验数据。