| 门式刚架中楔形柱平面内稳定长度系数的探讨 |
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| 引用本文： | 雷宏刚,高青松,王凯.门式刚架中楔形柱平面内稳定长度系数的探讨[J].科学之友,2009(5):25-27. |
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| 作者姓名： | 雷宏刚 高青松 王凯 |
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| 作者单位： | 太原理工大学建筑与土木工程学院; |
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| 摘 要： | 对门式刚架中工字楔形柱平面内稳定作了理论分析和探讨，推导了基于结构力学意义上柱的平面内一阶线弹性稳定性方程，对两端简支情况给出了平面内稳定长度系数的高精度近似解析解。给出了其他可能的近似支撑情况的边界条件，对4种支撑情况给出了平面内长度系数的表和相应的修正公式。对于一般意义上柱的平面内长度系数给出了力学近似简化模型，并给出了符合一定条件的柱的长度系数的一种计算方法。另外，文章导出的一个微分方程解析解为推导工字楔形单元在压力作用下的转角位移方程提供了依据，即为二阶线弹性分析工字形变截面构件提供了理论依据。
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| 关 键 词： | 水泥生产 工艺与设备 技术进步 |
A Study of Effective Length Coefficient of Strut In Plane of Taper H-Section in Portal Frame |
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| Lei Honggong,Gao Qingsong,Wang Kai.A Study of Effective Length Coefficient of Strut In Plane of Taper H-Section in Portal Frame[J].Friend of Science Amateurs,2009(5):25-27. |
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| Authors: | Lei Honggong Gao Qingsong Wang Kai |
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| Institution: | Lei Honggong, Gao Oingsong, Wang Kai |
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| Abstract: | Stability of taper H-section in portal frame are theoretically studied ,Fist-order linear elastic stability equation of strut based on structural mechanics is deduced and high accuracy approximate analytic effective length coefficient of two-sides simply supported strut in plane is given.Other possibe approximate boundary support condition are provided, four-type supported struts are given effevtive length coefficient table and equation in plane.Simple mechanics model for general effective length coefficien... |
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| Keywords: | portal frame taper H-section buckling in plane effective length coefficient second-order analysis |
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