| 薄壁梁中的横向双力矩问题 |
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| 引用本文： | 汪先俊.薄壁梁中的横向双力矩问题[J].铁道工程学报,2005(4):16-19. |
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| 作者姓名： | 汪先俊 |
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| 作者单位： | 中国铁路工程总公司,北京,100055 |
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| 摘 要： | 本文对薄壁梁中的横向双力矩这一广义力进行研究,指出它在开口薄壁梁和闭口薄壁梁约束扭转中,对翘曲正应力和圣维南原理适用条件有着不同程度的影响,并首次提出了箱形薄壁梁在横向双力矩作用下梁中最大翘曲正应力的计算公式。
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| 关 键 词： | 薄壁梁 约束扭转 横向双力矩 圣维南原理 箱形梁 |
| 文章编号： | 1006-2106(2005)04-0016-04 |
| 收稿时间： | 2005-06-07 |
| 修稿时间： | 2005年6月7日 |
LATERAL DOUBLE MOMENT IN THIN-WALLED BEAM |
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| WANG Xian-jun.LATERAL DOUBLE MOMENT IN THIN-WALLED BEAM[J].Journal of Railway Engineering Society,2005(4):16-19. |
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| Authors: | WANG Xian-jun |
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| Institution: | WANG Xian-jun China Railway Engineering Corporation |
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| Abstract: | This paper makes a research on lateral double moment of generalized force in thin-walled beam, describes the different influences on the applied condition of bucking direct stress and Saint Venant Principle by lateral double moment during restraining twist rotation of open thin-walled beam and close thin-walled beam, and first presents the calculation formula of max,buckling direct stress in thin-walled box beam under effect of lateral double moment. |
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| Keywords: | thin-walled beam restraining twist rotation lateral double moment Saint Venant Principle box beam |
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