| 约束条件下钢梁的整体稳定分析 |
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| 引用本文： | 孔德志,杨卫红.约束条件下钢梁的整体稳定分析[J].河南大学学报(自然科学版),2007,37(1):91-94. |
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| 作者姓名： | 孔德志 杨卫红 |
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| 作者单位： | 河南大学,材料与结构研究所,河南,开封,475001 |
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| 基金项目： | 河南省科技厅科技攻关项目 |
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| 摘 要： | 假定周围介质的约束反力与型钢的位移成正比,通过理论分析推导了约束整体稳定计算式.结果表明,周围介质的侧向约束作用显著提高了钢梁的整体稳定承载力,计算长度超过某一界限长度后其临界弯矩不再降低.
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| 关 键 词： | 整体稳定 临界弯矩 侧向约束 侧移 扭转 |
| 文章编号： | 1003-4978（2007）01-0091-04 |
| 修稿时间： | 2006-09-16 |
Analysis of Integral Stability of Steel Beam under Restriction |
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| KONG De-zhi,YANG Wei-hong.Analysis of Integral Stability of Steel Beam under Restriction[J].Journal of Henan University(Natural Science),2007,37(1):91-94. |
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| Authors: | KONG De-zhi YANG Wei-hong |
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| Institution: | Institute of Material and Structure, Henan University, Henan Kai feng 475001, China |
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| Abstract: | In this paper,it is assumed that the restriction of medium around the steel beam is in direct proportion to the lateral movement of the steel beam.The formula for integer stability calculation of reinforced soil-cement mixing wall has been deducted by theoretical analysis.It proves that the lateral restriction of medium has enhanced the integer stability of steel beam,and the critical bending moment would not decrease when the length exceedes a certain point. |
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| Keywords: | integral stability critical bending moment lateral restriction lateral movement torsion |
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