As a pilot research for an aimed beam-column joint of steel prefabricated prefinished volumetric construction (PPVC) buildings, this study investigates the axial static bearing capacity of grouted square hollow section (SHS) sleeve connections via carrying out experimental tests. Ten specimens with different dimensions were tested to failure under monotonic axial compressive loading and their loading-displacement curves were measured and recorded. The effect of the grouted length, the shear-key spacing, and the grout strength to the bearing capacity of the grouted SHS sleeve connections are investigated in this study. It is found that the axial static bearing capacity of the specimens tested increases approximately in a linear manner with the grouted length increases and can reach the bearing capacity of the outer tube’s cross-section when the grouted length is sufficient. Besides, the benefits brought by the increment of the grout strength to the axial bearing capacity of the grouted SHS sleeve connection may depend on other parameters such as the shear-key size and spacing, the gap between two tubes, and the thickness of the outer tube. Therefore, more experimental tests are required to understand the effect of the grout strength comprehensively.

作为针对钢预制预制容积式建筑（PPVC）建筑物的目标梁柱节点的试点研究，本研究通过进行实验测试，研究了注浆方形空心截面（SHS）套筒连接的轴向静承载能力。测试了十个不同尺寸的试样在单调轴向压缩载荷下的破坏，并测量和记录了它们的载荷-位移曲线。在这项研究中，研究了灌浆长度，剪切键间距和灌浆强度对灌浆SHS套筒连接件承载力的影响。结果发现，随着灌浆长度的增加，试样的轴向静态承载力大约呈线性增加，当灌浆长度足够时，轴向静承载力可以达到外管横截面的承载力。此外，灌浆强度增加对灌浆SHS套筒连接的轴向承载力所带来的好处可能取决于其他参数，例如剪切键的尺寸和间距，两根管之间的间隙以及外层的厚度管子。因此，需要更多的实验测试来全面了解灌浆强度的影响。灌浆强度增加对SHS灌浆套管连接的轴向承载能力带来的好处可能取决于其他参数，例如剪切键的大小和间距，两根管之间的间隙以及外管的厚度。因此，需要更多的实验测试来全面了解灌浆强度的影响。灌浆强度增加对SHS灌浆套管连接的轴向承载能力带来的好处可能取决于其他参数，例如剪切键的尺寸和间距，两根管之间的间隙以及外管的厚度。因此，需要更多的实验测试来全面了解灌浆强度的影响。