薄壁开孔圆钢管轴压稳定分析  

Axial compression stability analysis of thin-walled tubular with hole

作　　者：张津荣 

机构地区：[1]中铁第五勘察设计院集团有限公司,北京102600

出　　处：《建筑结构》2013年第S1期1444-1446,共3页Building Structure

摘　　要：钢管混凝土构件置换混凝土,往往需要在管壁上开孔,以清除达不到设计承载力的混凝土,并为重新浇筑混凝土提供通道。首先通过与已有试验结果对比,以确保有限元分析结果的正确性。通过对薄壁开孔圆钢管的稳定分析,得出了管壁开孔对圆钢管稳定有很大影响等结论,为以后钢管混凝土加固工程提供理论依据。The engineering of replacement concrete reinforcement to concrete-filled steel tubular,often need to make a hole in the wall to clear the substandard concrete and re-pouring concrete. The results of tests and finite element analysis are contrasted to ensure the correctness of the finite element analysis. By stability analysis to the circle steel thin-walled with hole,the paper gives the conclusion of wall openings a great influence on the stability of circular steel tubes,and provides a theoretical basis for future steel pipe concrete replacement project.

关 键 词：薄壁构件 开孔 稳定分析 初始缺陷 

分 类 号：TU392.3[建筑科学—结构工程]