进行了2组1∶4缩尺空间桁架相交节点的静力单调加载试验,分析了节点在静力加载全过程中的应变与转角变化特点,揭示节点的破坏模式,并补充进行了全过程数值模拟分析。试验最终呈焊缝连接破坏,结合试验结果对此类节点的设计提出一些建议和构造措施,为结构设计提供了依据。 The static monotonic loading tests of two groups of 1: 4 scale truss intersection nodes were carried out. The characteristics of the strain and rotation angle during the static loading were analyzed to reveal the failure modes of the nodes and to supplement the whole process value Simulation analysis. In the end, the weld joint is destroyed. Based on the test results, some suggestions and construction measures are proposed for the design of such joints, which provides the basis for structural design.