（北京市建筑设计研究院，北京 100045）

［摘要］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。

［关键词］空间桁架；节点；试验研究；有限元

Experimental study on intersection of large-span space truss nodes

Zhao Nan, Li Ting(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:Two groups of experiment of 1∶4 scaled space truss intersection joints under monotonous static loading has been performed.The characteristics of change in the strain and rotation during the whole process were analyzed, and  the failure mode was revealed. Numerical simulation analysis has also been included. Weld connecting was damaged. A few suggestions on such joint issues were put forward as the basis for further structure design.

Keywords:space truss; steel structure; joint; experimental study; finite element

作者简介：赵楠，硕士，工程师，Email：Biad1s1@126.com。

参考文献

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