近几十年来，钢-混凝土组合结构在土木工程的高层和超高层建筑中得到广泛应用。在工程设计中采用的节点形式多种多样，且各有其不同的特性。在框架设计时，大都假设为刚接或铰接节点，因而节点的受力特性有一定的差异。在一定荷载条件下，利用ANSYS有限元分析软件对加强环式组合梁-钢管混凝土柱节点进行了模拟分析。其主要结论为：①组合梁-钢管混凝土柱节点在梁下翼缘与加强环交界边缘处最早出现受压屈服区，随后向梁下翼缘、腹板扩散，此处应力变化显著；②混凝土柱基本处于受压状态；③节点区钢筋受力明显，并沿翼板宽度减少。

The steel-concrete composite structure has been used in high-storeyed buildings and over high-storeyed buildings of civil engineering recently. A variety of node types have been adopted in engineering practices. In the framework design, different kinds of node are commonly assumed to be rigid or hinge joint, which possess different node characteristics. Under certain loading condition, the joint node of beam-column steel concrete are simulated using the finite element software ANSYS. Main conclusions are represented as follows: (1) In the junction of the lower flange in the beam and the reinforced loop of the composite beam-column, a yield area occurs first, and then the zone spreads toward the lower flange of the beam and ventral plate, where the change of stress is distinct. (2) The concrete column is in compressive state basically. (3) Steel reinforcements are forced obviously in the node area and forces decrease gradually along the width of the flange plate.