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| A Simplified Method for Analyzing Truss Structure Due to Removal of Members | |
| 作者姓名： | 周岱 周笠人 刘红玉 |
| 作者单位： | [1]SpaceStructuresResearchCenter,ShanghaiJiaotongUniv.,Shanghai200030,China [2]JiaxingCommitteeofEducation,Jiaxing314001 [3]SchoolofManagement,ShanghaiJiaotongUniv.,Shanghai200030 |
| 基金项目： | Fund of Science and Technology Develop-ment of Shanghai ( No. 0 2 ZF14 0 5 6) |
| 摘 要： | Based on relating equation group, a simplified method was presented in terms of the matrix displacement method, which can be conveniently used to study the re-distribution of the internal forces and displacement of truss structures due to the removal of members. Such removal is treated as though adding a load case to the original truss, and the re-distribution can be calculated without modifying the original global stiffness matrix. The computational efficiency of the presented method is faster by square times than that of the matrix displacement method. The results from the two methods are identical. |
| 关 键 词： | 矩阵置换方法 建筑结构 内应力 荷载 相关方程式 桁架 杆件 |
A Simplified Method for Analyzing Truss Structure Due to Removal of Members |
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| ZHOU Dai ,ZHOU Li-ren ,LIU Hong-yu.A Simplified Method for Analyzing Truss Structure Due to Removal of Members[J].Journal of Shanghai Jiaotong university,2003,8(2):118-122. | |
| Authors: | ZHOU Dai ZHOU Li-ren LIU Hong-yu |
| Institution: | 1. Space Structures Research Center, Shanghai Jiaotong Univ. , Shanghai 200030, China 2. Jiaxing Committee of Education, Jiaxing 314001 3. School of Management, Shanghai Jiaotong Univ. , Shanghai 200030 |
| Abstract: | Based on relating equation group, a simplified method was presented in terms of the matrix displacement method, which can be conveniently used to study the re-distribution of the internal forces and displacement of truss structures due to the removal of members. Such removal is treated as though adding a load case to the original truss, and the re-distribution can be calculated without modifying the original global stiffness matrix. The computational efficiency of the presented method is faster by square times than that of the matrix displacement method. The results from the two methods are identical. |
| Keywords: | truss member load case relating equation |
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