摘要
当方钢管混凝土柱宽厚比较大时,需要考虑管壁局部屈曲导致的截面部分失效。沿管壁纵向布置加劲肋有助于解决此问题。通过对带加劲肋钢板的屈曲系数k值的变参数分析,得出加劲肋尺寸对k值的影响,并建议选择加劲肋需要满足的两个条件。给出大宽厚比情况下等距布置加劲肋的步骤和验算方法。
When the W/t ratio is large in square concrete filled steel tubes, the part disability of the section due to local buckling of steel plates should be considered. Reinforcing ribs can help to solve this problem. The buckling coefficient k is analyzed by varying diameters of the steel plate with ribs, and the influence of the dimension of the reinforcing ribs is obtained. Two conditions should be satisfied when choosing ribs. The process and checking method of arranging the ribs in large W/t ratio columns are also given.
出处
《工业建筑》
CSCD
北大核心
2008年第1期100-102,共3页
Industrial Construction
关键词
加劲肋
宽厚比
屈曲系数
方钢管混凝土
reinforcing ribs W/t ratio buckling coefficient square concrete filled steel tubes
