摘要
对某超长封闭环形结构设计中的若干关键问题进行了分析和探讨。首先通过模态分析发现环形结构的第一模态为扭转振型;其次通过屈曲分析发现环形结构的整体稳定性优于常规矩形结构,并比较了刚接梁与铰接梁对圆环整体稳定性的贡献;然后分析了超长封闭环形结构的温度效应与常规矩形结构的不同之处;最后采用通用有限元分析软件ABAQUS对钢管混凝土柱与钢梁刚接节点进行了分析计算,得出若干结论,供类似工程参考。
In this paper, an overlong closed annular structure is studied and discussed. Structural dynamic characteristics were obtained by modal analysis. Ring stability was studied by buckling analysis, which indicates that it is better than the rectangular shape structure. Temperature effects are also different from the rectangular structure. The CFST joint was analyzed by using ABAQUS. Some conclusions were drawn in the expectation that the results can be used for references of similar projects in future.
出处
《结构工程师》
北大核心
2014年第2期12-17,共6页
Structural Engineers
