为解决钢柱或组合柱与钢筋混凝土梁连接节点构造复杂、施工难度大等问题,提出了2种端部带工字钢接头的预制装配式钢筋混凝土梁,并分别对2种新型梁及1个普通钢筋混凝土对比梁试件进行了受弯性能足尺试验。研究结果表明:在三分点集中荷载作用下,3个试件的变形性能和破坏形态基本一致;2种新型梁的开裂弯矩和极限弯矩与规范计算结果吻合良好,说明可按现行混凝土结构设计规范进行梁体的受弯承载力设计;钢接头和混凝土梁体之间几乎没有滑移,且钢端头在整个加载过程中处于弹性受力状态。基于ABAQUS软件建立了2种新型梁体的有限元分析模型,并通过与试验结果对比验证了模型的正确性。在此基础上研究了采用文中提出梁体的单层框架受弯性能,为梁体的应用提供了基础。 In order to solve the problems of complicated structure and large construction difficulty, the two types of prefabricated reinforced concrete beams with I-shaped joints at the ends were put forward. Two types of new-type beams and one A total of concrete specimens of ordinary reinforced concrete bending performance full-scale test. The results show that the deformability and failure mode of the three specimens are basically the same under the three-point concentrated load. The cracking moment and the ultimate bending moment of the two new types of beams are in good agreement with the calculated results, Structural design specifications for the bending of the beam bearing capacity design; almost no slip between the steel joint and the concrete beam body, and the steel tip in the entire loading process in the elastic force state. Based on the ABAQUS software, two new finite element models of the beam were established, and the correctness of the model was verified by comparison with the experimental results. Based on this, the bending behavior of the single-story frame with the beam body proposed in this paper is studied, which provides the foundation for the application of the beam body.