The performance of joint connections has always been the key to precast assembly structures. This paper proposes a new type of joint connection that is made by means of pre-embedded steel plates and connected by bolts or welding without any wet work. Located outside the beam-column joint, the connection is arranged around the inflection point of the beam where the bending moment is small. Three precast beams of different cross-sections and a set of cast-in-place concrete contrast beams were prepared and loaded by the anti-symmetric static loading method. The results show that the joint connection changes the failure mode of the specimens, transfers the failure section from the weak point to the non-weak point, and improves the bearing capacity of the specimens. With the increase of the cross-section area of the embedded steel plate at the joint, the bearing capacity and the ductility of the specimens increase. The energy consumption capacity of the precast specimen is significantly higher than that of the ordinary cast-in-place concrete specimen. Since the joint has not been destroyed, the component can be replaced when other parts of the specimen are destroyed.

中文翻译：

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钢筋混凝土预制连续梁的性能结合了设计和分配连接的新策略

接头连接的性能一直是预制装配结构的关键。本文提出了一种新型的接头连接方式，采用预埋钢板制作，并通过螺栓或焊接连接，无需任何湿作业。连接件位于梁柱节点外，在弯矩较小的梁拐点附近布置。制备了三根不同截面的预制梁和一套现浇混凝土对比梁，采用反对称静载法进行加载。结果表明，接头连接改变了试件的破坏模式，将破坏截面从薄弱点转移到了非薄弱点，提高了试件的承载能力。随着接头处预埋钢板截面积的增加，试件的承载能力和延展性增加。预制试件的能耗能力明显高于普通现浇混凝土试件。由于接头没有被破坏，当试样的其他部分被破坏时，可以更换组件。