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冷弯薄壁卷边槽钢轴压柱屈曲实用计算研究
引用本文:罗洪光,郭耀杰,李昆,杨琴原.冷弯薄壁卷边槽钢轴压柱屈曲实用计算研究[J].工业建筑,2011,41(8):96-100.
作者姓名:罗洪光  郭耀杰  李昆  杨琴原
作者单位:1. 三峡大学上木与建筑学院,湖北宜昌443002/武汉大学土木建筑工程学院,武汉430072
2. 武汉大学土木建筑工程学院,武汉,430072
3. 三峡大学上木与建筑学院,湖北宜昌,443002
摘    要:基于直接强度法,拟合冷弯薄壁卷边槽钢轴压柱局部屈曲、畸变屈曲实用计算公式,取局部屈曲、畸变屈曲与整体屈曲三者的最小值作为轴压柱屈曲计算结果。3种屈曲计算值与有关试验值的对比分析表明,所提出的实用计算公式在适用范围内与试验值吻合较好,且计算公式简单、实用,避免了对专用计算程序的依赖。

关 键 词:冷弯薄壁卷边槽钢  轴压柱  直接强度法  屈曲承载力  实用计算

RESEARCH ON THE APPLIED CALCULATION METHOD FOR THE BUCKLING OF COLD-FORMED LIPPED CHANNEL COLUMNS UNDER AXIAL PRESSURE
Luo Hongguang,Guo Yaojie,Li Kun,Yang Qinyuan.RESEARCH ON THE APPLIED CALCULATION METHOD FOR THE BUCKLING OF COLD-FORMED LIPPED CHANNEL COLUMNS UNDER AXIAL PRESSURE[J].Industrial Construction,2011,41(8):96-100.
Authors:Luo Hongguang  Guo Yaojie  Li Kun  Yang Qinyuan
Affiliation:1(1.College of Civil and Architectural Engineering,China Three Gorges University,Yichang 443002,China; 2.School of Civil and Architectural Engineering,Wuhan University,Wuhan 430072,China)
Abstract:Based on the Direct Strength Method(DSM),the applied calculation formulas fitting for the local and distortional bucklings of cold-formed lipped channel columns under axial pressure is carried out.The minima of local,distortional and global bucklings are the buckling carrying capacity calculation results.A comparative study is made between the calculation results and experimental ones.It shows that in applicable scope the results of applied calculation formulas agree well with those of the experiments.The applied calculation formulas are simple,practical and independent of the dedicated computer program.
Keywords:cold-formed lipped channel  columns under axial pressure  direct strength method(DSM)  buckling carrying capacity  applied calculation
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