石油化工高等学校学报

石油化工高等学校学报 ›› 2021, Vol. 34 ›› Issue (4): 72-77.DOI: 10.3969/j.issn.1006-396X.2021.04.012

• 油气储运 • 上一篇    下一篇

拱脚位移对圆弧形拱管平面外稳定性影响的有限元分析

李雨龙1(), 孙星2, 李小玲1, 吴玉国1(), 王国付1   

  1. 1.辽宁石油化工大学 石油天然气工程学院,辽宁 抚顺 113001
    2.江苏斯尔邦石化有限公司, 江苏 连云港 222000
  • 收稿日期:2020-12-21 修回日期:2021-02-24 出版日期:2021-08-25 发布日期:2021-09-18
  • 通讯作者: 吴玉国
  • 作者简介:李雨龙(1997⁃),男,硕士研究生,从事油气储运技术方面的研究;E⁃mail:2360129767@qq.com
  • 基金资助:
    辽宁省自然科学基金指导计划项目(2019?ZD?0060);辽宁省博士科研启动基金计划项目(2020?BS?227)

The Finite Element Analysis of the Influence of Arch Foot Displacement on Out⁃of⁃Plane Stability of Circular Arch Pipe

Yulong Li1(), Xing Sun2, Xiaoling Li1, Yuguo Wu1(), Guofu Wang1   

  1. 1.College of Petroleum and Natural Gas Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Jiangsu Sierbang Petrochemical Co. ,Ltd. ,Lianyungang Jiangsu 222000,China
  • Received:2020-12-21 Revised:2021-02-24 Published:2021-08-25 Online:2021-09-18
  • Contact: Yuguo Wu

摘要:

平面外失稳为圆弧形拱式跨越管道常见的失稳形式之一,为了解多荷载下圆弧形拱管的稳定性,利用ANSYS软件对正常工况下的圆弧形拱管受风荷载和竖直分布荷载的工况进行模拟,对拱脚位移对极限竖直分布荷载的影响进行有限元计算分析。分析结果表明,拱脚水平位移对极限竖直分布荷载影响最大,且存在极限竖直分布荷载随拱脚水平位移增大而迅速下降;相同水平拱脚位移下,极限竖直分布荷载随风荷载的增大线性减小;不同风荷载下拱顶极限出拱平面位移在拱脚水平位移一定范围内分布集中,可结合水平拱脚位移对拱管变形情况进行监测。以上研究为跨越管道的设计和安全运行提供了一定的参考依据。

关键词: 拱脚位移, 拱管, 风荷载, 平面外稳定性, 有限元

Abstract:

Out?of?plane instability is one of the common instability forms of arc?shaped arched spanning pipelines. In this work, the ANSYS software was used to simulate the impact of wind and vertical distributed load on arc?shaped arch pipes under normal conditions. The influence of the arch foot displacement on the limit vertical distributed load is analyzed by finite element calculation. The analysis results show that the horizontal displacement of the arch foot has the greatest impact on the limiting vertical distributed load, which will rapidly decrease the displacement, the limiting vertical distributed load decreases linearly with the increase of wind load under the same horizontal arch foot displacement, and under different wind loads, the limiting arch plane displacement of the arch is concentrated within a certain range of the horizontal displacement of the arch toe, which can be used to monitor the arch tube deformation. Based on the above results, this work provides a certain reference basis for the design and safely operating of the crossing pipeline.

Key words: Arch foot displacement, Arch pipe, Wind load, Out?of?plane stability, Finite element

中图分类号: 

引用本文

李雨龙, 孙星, 李小玲, 吴玉国, 王国付. 拱脚位移对圆弧形拱管平面外稳定性影响的有限元分析[J]. 石油化工高等学校学报, 2021, 34(4): 72-77.

Yulong Li, Xing Sun, Xiaoling Li, Yuguo Wu, Guofu Wang. The Finite Element Analysis of the Influence of Arch Foot Displacement on Out⁃of⁃Plane Stability of Circular Arch Pipe[J]. Journal of Petrochemical Universities, 2021, 34(4): 72-77.

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