| 压弯构件弯扭屈曲相关公式中弯矩附加系数及其影响分析 |
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| 引用本文： | 郭耀杰,李昆,郭盛. 压弯构件弯扭屈曲相关公式中弯矩附加系数及其影响分析[J]. 武汉大学学报(工学版), 2002, 35(6): 44-47 |
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| 作者姓名： | 郭耀杰 李昆 郭盛 |
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| 作者单位： | 武汉大学土木建筑工程学院,湖北,武汉,430072 |
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| 摘 要： | 得出了平面内弯曲变形对压弯构件弯扭屈曲的影响形式 ,这一形式可用统一的弯矩附加系数表达 .它不仅是全跨附加弯矩对弯扭屈曲的总反映 ,而且在形式上比弯矩作用平面内稳定性计算相关公式中的弯矩放大系数更简洁 .对实际构件的计算表明 ,在设计规范给出的计算压弯构件弯扭屈曲的相关公式中宜计入弯矩附加系数
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| 关 键 词： | 压弯构件 弯扭屈曲 弯矩附加系数 设计规范 |
| 文章编号： | 1006-155X(2002)06-044-04 |
| 修稿时间： | 2002-03-15 |
Additional moment factor and its effect in interaction formula for lateral-torsional buckling of beam-columns |
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| GUO Yao_jie,LI Kun,GUO Sheng. Additional moment factor and its effect in interaction formula for lateral-torsional buckling of beam-columns[J]. Engineering Journal of Wuhan University, 2002, 35(6): 44-47 |
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| Authors: | GUO Yao_jie LI Kun GUO Sheng |
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| Abstract: | The effect of in-plane bending deformation on the lateral_torsional buckling of beam_columns is considered and the effect form, the additional moment factor, is obtained. It not only represents the total effect of the additional moment along the whole span of the member on the lateral_torsional buckling, but also is simpler than the in_plane moment amplification factor in form. The calculations of the actual members show that the additional moment factor should be contained in the interaction formula for the lateral_torsional buckling of beam_columns in design codes. |
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| Keywords: | beam_column lateral_torsional buckling moment amplification factor design codes |
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