[提要]  介绍了钢管混凝土柱-混凝土环梁节点的构造和基本受力机理，以及37个节点模型、1个足尺节点单调加载试验结果和14个节点模型在低周反复荷载作用下的试验结果。试验结果表明，通过合理设计，环梁节点能有效地传递框架梁端的剪力和弯矩，具有良好的变形能力和耗能能力，可以实现“强节点、弱构件”的抗震概念设计。简要介绍了环梁节点的设计方法及其在房屋建筑中的应用。
[关键词]  钢管混凝土柱  混凝土环梁  节点  试验  房屋建筑

The details and the basic mechanical properties of the steel tube confined concrete column and reinforced concrete ring beam joint are introduced. Test results of 37 joint models and one full scale joint under monotonic increased loading as well as test results of 14 joint models under cyclic lateral loading are presented. The experimental results indicate that the proper designed ring beam joint can transfer the frame beam shear and moment effectively and the joint has excellent deformation capacity and energy dissipation capacity.The earthquake resistance design concept of strong connection and weak member can be achievecl.The design method and the application of the joint are briefly introduced.
Keywords:  steel tube confined concrete column; reinforced concrete ring beam; joint; experiment; buildings