Precast beam–column connections, which are difficult to prefabricate and assemble, are critical members of concrete frames in high seismic regions. In this study, a novel type of precast hybrid connection with different connection configurations is developed for an easy and rapid construction. This steel–concrete connection involves a concrete column with an embedded steel skeleton, a concrete beam with an embedded H-steel, and a connection device including steel band plates and high-strength bolts. To investigate the effectiveness of the proposed connections, three precast hybrid beam–column joints and one monolithic specimen were subjected to reversed cyclic loading and tested. During the test, load–displacement hysteresis curves and failure modes were obtained. The seismic behaviour was investigated in terms of stiffness degradation, load-carrying capacity, energy dissipation, ductility, and shear deformation in the joint core region. Experimental results indicated that the proposed precast hybrid connections exhibited satisfactory performance in terms of ductility, energy dissipation, rotation capacity, strength, and stiffness. The shear deformation of the proposed hybrid connections was reduced owing to the effective confinement of the steel skeleton, while the shear strength improved. Plastic hinges of precast joints with a square steel tube occurred in the beams, and these specimens exhibited flexural failure, which is consistent with the principle of strong columns and weak beams. Therefore, these proposed connections can resist high seismic loads.

预制的梁柱连接很难进行预制和组装，是高地震地区混凝土框架的关键构件。在这项研究中，开发了一种新型的具有不同连接配置的预制混合连接，可轻松快速地进行构造。这种钢-混凝土连接包括带有嵌入式钢骨架的混凝土柱，带有嵌入式H型钢的混凝土梁以及包括钢带板和高强度螺栓的连接装置。为了研究所提出的连接的有效性，对三个预制的混合梁柱节点和一个整体式标本进行了反向循环加载并进行了测试。在测试过程中，获得了载荷-位移磁滞曲线和破坏模式。根据刚度退化研究了地震行为，接头核心区域的承载能力，能量耗散，延展性和剪切变形。实验结果表明，所提出的预制混合连接在延展性，能量耗散，旋转能力，强度和刚度方面表现出令人满意的性能。由于有效地限制了钢骨架，减少了所提出的混合连接的剪切变形，同时提高了剪切强度。梁中出现了带有方形钢管的预制节点的塑料铰链，这些试件表现出挠曲破坏，这与强柱和弱梁的原理是一致的。因此，这些建议的连接可以抵抗高地震载荷。实验结果表明，所提出的预制混合连接在延展性，能量耗散，旋转能力，强度和刚度方面表现出令人满意的性能。由于有效地限制了钢骨架，减少了所提出的混合连接的剪切变形，同时提高了剪切强度。梁中出现了带有方形钢管的预制节点的塑料铰链，这些试件表现出挠曲破坏，这与强柱和弱梁的原理是一致的。因此，这些建议的连接可以抵抗高地震载荷。实验结果表明，所提出的预制混合连接在延展性，能量耗散，旋转能力，强度和刚度方面表现出令人满意的性能。由于有效地限制了钢骨架，减少了所提出的混合连接的剪切变形，同时提高了剪切强度。梁中出现了带有方形钢管的预制节点的塑料铰链，这些试件表现出挠曲破坏，这与强柱和弱梁的原理是一致的。因此，这些建议的连接可以抵抗高地震载荷。由于有效地限制了钢骨架，减少了所提出的混合连接的剪切变形，同时提高了剪切强度。梁中出现了带有方形钢管的预制节点的塑料铰链，这些试件表现出挠曲破坏，这与强柱和弱梁的原理是一致的。因此，这些建议的连接可以抵抗高地震载荷。由于有效地限制了钢骨架，减少了所提出的混合连接的剪切变形，同时提高了剪切强度。梁中出现了带有方形钢管的预制节点的塑料铰链，这些试件表现出挠曲破坏，这与强柱和弱梁的原理是一致的。因此，这些建议的连接可以抵抗高地震载荷。