This study investigated the structural mechanical properties and failure modes of large-scale three-dimensional (3D) printed concrete walls under axial compression loads. Eight large-scale 3D printed concrete wall specimens with varying ratios of height to thickness were tested under axial compression, including two specimens without horizontal steel reinforcement and six specimens with horizontal steel reinforcement. It can be concluded that the failure of 3D printed concrete walls under an axial compression load is brittle. The use of horizontal steel reinforcement reduces the ultimate bearing capacity of 3D printed concrete walls under axial compression. The layers in which the horizontal steel reinforcement is set are weak zones. Based on the stress state characteristics, the structural mechanical properties were further studied by modeling the test results of the strains of large-scale 3D printed concrete walls. The failure load was defined accordingly, and a formula for predicting the failure loads was proposed and validated.

本研究调查了大型三维 (3D) 打印混凝土墙在轴向压缩载荷下的结构力学性能和破坏模式。8个不同高厚比的大型3D打印混凝土墙体试件在轴压下进行了测试，其中2个无水平钢筋试件和6个水平钢筋试件。可以得出结论，3D 打印混凝土墙在轴向压缩载荷下的破坏是脆性的。水平钢筋的使用降低了 3D 打印混凝土墙在轴向压缩下的极限承载力。设置水平钢筋的层为薄弱区。根据应力状态特征，通过对大型 3D 打印混凝土墙的应变测试结果进行建模，进一步研究了结构力学性能。相应地定义了失效载荷，并提出并验证了预测失效载荷的公式。