| 长输管线中直管跨越管道的力学分析 |
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| 引用本文： | 张慧敏,潘家祯.长输管线中直管跨越管道的力学分析[J].华东理工大学学报(自然科学版),2007,33(4):577-583. |
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| 作者姓名： | 张慧敏 潘家祯 |
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| 作者单位： | 1. 华东理工大学机械与动力工程学院,上海,200237;上海应用技术学院机械与自动化工程学院,上海,200233
2. 华东理工大学机械与动力工程学院,上海,200237 |
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| 基金项目： | 上海市教委科研项目(050Z04) |
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| 摘 要： | 将埋地管线直管跨越管道的悬空段简化为大挠度梁,且考虑几何非线性,将埋地段看成有限长梁,考虑土壤纵向抗力的物理非线性,研究了固定墩位置、管道温差、跨长、自重及防腐层厚度变化对挠度、弯矩、应力的影响以及挠度、弯矩、应力在跨长方向的分布情况。结果表明:随着固定墩到悬空段距离的增加,固定墩处弯矩从小于跨中弯矩向大于跨中弯矩变化,跨中挠度在跨度为5~10 m时迅速增加,随后趋于稳定。
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| 关 键 词： | 埋地管道 长输管线 应力分析 跨越部分跨距 |
| 文章编号： | 1006-3080（2007）04-0577-07 |
| 修稿时间： | 2006-12-01 |
Mechanical Analysis for Stride across Section of Long Distance Transport Pipeline |
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| ZHANG Hui-ming,PAN Jia-zhen.Mechanical Analysis for Stride across Section of Long Distance Transport Pipeline[J].Journal of East China University of Science and Technology,2007,33(4):577-583. |
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| Authors: | ZHANG Hui-ming PAN Jia-zhen |
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| Institution: | 1;2;1.School of Mechanical and Power Engineering;East China University of Science and Technology;Shanghai 200237;China;2.College of Mechanical and Automatic Engineering;Shanghai Institute of Science and Technology;Shanghai 200233;China |
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| Abstract: | This paper investigates the mechanical properties of stride across section of buried long distance transport pipeline.The suspended pipeline is simplified as a large deflection bending beam.The buried section is assumed to be in limited length and the earth resistant force is considered to be non-linear.Effect of anchor blocks location,temperature difference of pipeline,span distance,deadweight and anticorrosion coating thickness on the vertical displacement,bending moment and stresses is anaslyzed.The resu... |
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| Keywords: | buried pipeline long distance transport pipeline stress analysis stride across section of pipeline |
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