根据震害的经验,我们进行了钢筋混凝土框架节点梁端抗震性能的试验研究,其中包括整浇节点、装配式齿槽节点和明牛腿节点。节点的设计均按“强柱弱梁”的原则进行,使所有的塑性铰在梁端产生。为了使梁的延性充分发挥,试验研究了梁内主筋在节点核芯区的不同的锚固方案以及装配式节点中梁内主筋的坡口焊焊接方法。 According to the experience of earthquake damage, we conducted experimental research on the seismic performance of the reinforced concrete frame joints, including the integral pouring node, the assembled alveolar joint and the Mingniu leg. The design of the nodes is performed according to the principle of “strong column weak beam”, so that all plastic hinges are produced at the beam ends. In order to give full play to the ductility of the beam, different anchorage schemes for the core bars in the nodes in the beam and the groove welding method for the main bars in the middle of the assembly node were experimentally studied.