| 杆件撤除对平面刚架影响的实用计算法 |
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| 引用本文： | 江爱民,汪小超,沈晓安.杆件撤除对平面刚架影响的实用计算法[J].力学与实践,2000,22(4):19-22. |
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| 作者姓名： | 江爱民 汪小超 沈晓安 |
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| 作者单位： | 浙江工业大学浙西分校, 衢州 324006 |
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| 摘 要： | 基于短阵位移法，提出了用于分析杆件撤除对平面刚架结构影响的简化计算方法，与以往不同，本法仅将杆件撤除视为在原结构上曾加荷载工况，因此无需重建况体刚度矩阵即可用于分析杆件撤除对结构的影响，本法的计算速度比矩位移法快很多，算例表明，两种方法的计算结果一致。
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| 关 键 词： | 杆件 平面刚架结构 工况 关联系数 |
| 修稿时间： | 1999年5月8日 |
A SIMPLIFIED CALCULATION OF INTERNALFORCE REDISTRIBUTION IN PLANE FRAME STRUCTURES DUETO THE REMOVAL OF A MEMBER |
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| Jiang Aimin,Wang Xiaochao,SHEN Xiaoan.A SIMPLIFIED CALCULATION OF INTERNALFORCE REDISTRIBUTION IN PLANE FRAME STRUCTURES DUETO THE REMOVAL OF A MEMBER[J].Mechanics and Engineering,2000,22(4):19-22. |
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| Authors: | Jiang Aimin Wang Xiaochao SHEN Xiaoan |
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| Abstract: | Based on the matrix displacement method, a simplified method is presented in this paper. This method can be used to calculate the in ternal forcere distribution in plane frame structures due to the removal of a member. In this method,such removal is treated as applying four kinds of load cases to the original structures, and the internaJ force rediStribution can be calculated without modifying the global stiffiness matrix. The computation by this method is time-saving as compared with the traditional method. Numerical examples show that the results of the two methods are almost the same. |
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| Keywords: | member plane frame structures load case relative coefficient |
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