This paper focused on the behavior of steel–concrete composite beam (SCCB) to reinforced-concrete (RC) column exterior joint with single plate shear (SPS) connection under monotonic loading. Four SCCB to RC column exterior joints were constructed, and the test parameters were the longitudinal reinforcement ratio and high-strength bolt diameter. The failure modes, moment-rotation responses, strain distribution along composite beam depth, strain distribution of anchor bar and the influence of parameters were investigated. Compared with open literature, the influence of RC slab was also discussed. Finally, a calculation model accounting for the influence of RC slab was proposed to evaluate the yield moment and ultimate moment capacity of the joint under hogging moment. The test results showed that the longitudinal reinforcement ratio (ρ_sl), high-strength bolt diameter (d_b) and the RC slab effect had a great influence on static behavior of the SCCB to RC column joints with SPS connection. When ρ_sl was increased from 0.57% to 0.98%, the ultimate moment was increased by 40.3%. When d_b was increased from 16 mm to 20 mm, the ultimate moment was increased by 10.9%. Compared with the joints without RC slab, the ultimate moment of joints with RC slab was increased by 118% to 254%. Moreover, the proposed model provided a good prediction and laid a foundation for the design of SCCB to RC column joints with SPS connection.

本文重点研究了钢-混凝土组合梁 (SCCB) 与单板剪力 (SPS) 连接钢筋混凝土 (RC) 柱外部节点在单调荷载作用下的行为。搭建了4个SCCB与RC柱外接头，试验参数为纵向配筋率和高强螺栓直径。研究了破坏模式、力矩-旋转响应、沿复合梁深度的应变分布、锚杆的应变分布以及参数的影响。与公开文献相比，还讨论了RC板的影响。最后，提出了一种考虑钢筋混凝土板影响的计算模型，以评估中拱弯矩下节点的屈服弯矩和极限弯矩承载力。试验结果表明，纵向配筋率（ρ _SL），高强度螺栓直径（d _b）与RC板坯效应对所述SCCB到RC梁柱SPS连接的静态行为有很大影响。当ρ _sl从 0.57% 增加到 0.98% 时，极限弯矩增加了 40.3%。当d _b从16毫米增加到20毫米时，极限力矩增加了10.9％。与无钢筋混凝土板节点相比，钢筋混凝土板节点的极限弯矩增加了118%～254%。此外，所提出的模型提供了良好的预测，并为 SPS 连接的 SCCB 与 RC 柱节点的设计奠定了基础。