Elasto-Plastic Behaviour on Column-to-Beam Joint Panel under Two Direction Shear force

本文对空间组合中受双向力作用的空心截面柱- h梁节点板的剪切性能进行了试验和分析研究。十项试验使用连接组合进行了循环横向加载。试验试样如下：1。方形空心截面面板五种空间组合：纵横比= 1.0、1.5、2.0，轴向力比=0、0.25、0.52。方形空心截面面板三平面组合：纵横比= 1.0、1.5、2.0，轴向力比=03。圆空心截面板的两种空间组合：长径比= 1.5，轴向力比= 0,0.5，可得出以下结论：两方向力作用下节点板的抗剪强度大于单向力作用下节点板的抗剪强度。在受单向力作用的平面组合中，节点板的纵横比对节点板的抗剪强度没有影响。另一方面，当空间组合体受双向力作用时，抗剪强度随节点板长径比的增大而减小，这是由于节点板的弯矩影响了剪应力的分布。3 .圆形空心截面板抗剪强度随长径比的增大而降低的比例小于方形空心截面板。连接节点板的梁腹板减小了节点板的轴向力。因此，空间组合板的轴力比小于平面组合板的轴力比。

This report presents the results of experimental and analytical study on the shear behavior of hollow section column-to-H beam joint panels subjected to two direction force in space assemblages. Ten Tests were carried out using connection assemblages subjected to cyclic lateral loading. Test specimens are as follows :1. Five space assemblages with square hollow section panel: aspect ratio = 1.0, 1.5, 2.0, axial force ratio =0, 0.25, 0.52. Three plane assemblages with square hollow section panel: aspect ratio = 1.0, 1.5, 2.0, axial force ratio =03. Two space assemblages with circular hollow section panel: aspect ratio = 1.5, axial force ratio =0, 0.5The following conclusions can be made :1. The shear strength of the joint panels subjected to two directions force is more than it of the joint panels subjected to one direction force.2. In the case of plane assemblages subjected to one direction force, the aspect ratio of joint panels has no influence on the shear strength of the joint panels. On the other hand, in the case of space assemblages subjected to two directions force, the shear strength decreases as the aspect ratio of joint panel, because bending moment of the joint panels affects the distribution of the shear stress.3. The lowering ratio of shear strength with the increasing ratio of the aspect ratio in the case of circular hollow section panels is less than it in the case of square hollow section panels.4. The beam webs connecting the joint panels reduce the axial force of the joint panels. So, the axial force ratio of the joint panels in space assemblages is less than it in plane assemblages.