加强环的数量和位置对中空筒体钢结构稳定性影响  

THE STABILITY RESEARCH ON A HOLLOW STEEL-TUBE STRUCTURE WITH THE QUANTITY AND THE POSITION OF THE STIFFENING RING

作　　者：吴占奎[1] 杨晓燕[1] 

机构地区：[1]西安建筑科技大学,西安710055

出　　处：《工业建筑》2009年第S1期449-452,470,共5页Industrial Construction

摘　　要：中空筒体钢结构由于其底部净空要求,使得稳定计算成为结构计算的关键,拟采用设置加强环的方式来改善结构的稳定性能。以造粒塔结构为例,利用ANSYS程序建立了三维模型,研究了加强环位置和数量对造粒塔结构的稳定性能的影响,通过对比分析提出对加强环设置的数量、位置设置提出合理化建议值。The hollow steel-tube structure is widely used in the field of civil engineering.Because its lower structure has a demand on big clearance the normal rigidity of the tower is weak.Stiffening rings are adopted to improve the stability of the structure.Taking the actual project as the background and a three-dimensional model is established by ANSYS.The influence of the stiffening ring on the overall performance of a prilling tower is studied.At last,the rational suggested values are proposed through setting the stiffening ring or not,with different position and quantity.

关 键 词：中空筒体钢结构 造粒塔 加强环 稳定性 

分 类 号：TU391[建筑科学—结构工程]