| 温差对磁浮双跨轨道梁变形的影响 |
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| 引用本文： | 高捷,滕念管. 温差对磁浮双跨轨道梁变形的影响[J]. 河北工程大学学报(自然科学版), 2015, 32(2): 24-27 |
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| 作者姓名： | 高捷 滕念管 |
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| 作者单位： | 上海交通大学船舶海洋与建筑工程学院土木工程系,上海,200240 |
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| 摘 要： | 为探讨现有规定对磁悬浮轨道梁受温差荷载作用下产生的位移要求是否过于严苛,建立三种不同截面高度的磁浮双跨轨道梁有限元模型进行稳态分析,得到三种不同环境温度下的温度分布及竖向、横向最大位移。比较分析可知:竖向挠跨比均不满足现有规范,现有规范过于严苛;横向挠跨比均满足现有规范。
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| 关 键 词： | 双跨轨道梁 温差荷载 温度场 挠跨比 |
| 收稿时间： | 2014-12-09 |
Deformation analysis of maglev guideway under temperature load |
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| GAO Jie and TENG Nian-guan. Deformation analysis of maglev guideway under temperature load[J]. Journal of Hebei University of Engineering(Natural Science Edition), 2015, 32(2): 24-27 |
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| Authors: | GAO Jie and TENG Nian-guan |
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| Affiliation: | Department of Civil Engineering, School of Naval, Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Department of Civil Engineering, School of Naval, Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | For discussing whether current rules about displacement of maglev guideway under temperature load are too strict to realize, three different-depth-of-section double spans guideways model are established. Distribution of temperature and vertical and horizontal displacement of model in three different ambient temperatures are solved by using thermal-structure coupling analysis of ANSYS. The results show that the vertical displacement of guide way does not satisfy the latest standards and the horizontal displacement can satisfy the latest standards. |
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| Keywords: | double spans guideways model temperature difference temperature field ration of deflection to span |
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