[提要]  对80m跨预应力钢屋架的端头节点进行了有限元弹性分析，了解了端头节点的受力性能，并与试验结果进行比较，结果较为吻合，为工程应用作了初步探讨。
[关键词]  钢屋架 端头节点 预应力 有限元分析

This paper encompasses the finite element analysis of the endpoint of an 80-m prestressed roof girder to study the mechanical behavior of the endpoint. The comparison between the results of the analysis and those of the experiment is satisfactory. Thereby a preliminary research of application of this kind of structure is presented.
Keywords: steel  structure; roof  trusses; endpoint; prestress; finite  element; stress