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[1]宋文利,姚安林.组合拱式管桥可靠性分析[J].油气储运,1997,16(6):24-27.[doi:10.6047/j.issn.1000-8241.1997.06.008]
　Song Wenli,Yao Anlin.Reliability Analysis of Combined-Arch Pipe Bridge[J].Oil & Gas Storage and Transportation,1997,16(6):24-27.[doi:10.6047/j.issn.1000-8241.1997.06.008]

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组合拱式管桥可靠性分析

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 16 期数: 1997年6期页码: 24-27 栏目: 出版日期: 1900-01-01

Title:: Reliability Analysis of Combined-Arch Pipe Bridge

作者:: 宋文利¹; 姚安林²; 1.西北石油管道建设指挥部;
2.西南石油学院

Author(s):: Song Wenli¹; Yao Anlin²

关键词:: 输油管道; 输气管道; 组合拱式管桥; 结构设计; 可靠性; 结构分析; 计算

Keywords:: oil pipeline; gas-pipeline; combined-arched pipe bridge; structure design; reliability; structural analysis; calculation

DOI:: 10.6047/j.issn.1000-8241.1997.06.008

摘要:: 跨越管桥结构是长输油气管道中非常重要的组成部分,其结构设计是否合理以及安全可靠性的高低将对这类管道整体运行产生直接影响。以圆弧形组合拱式管桥作为研究对象,应用一次二阶矩理论对这种管桥结构进行了可靠性分析和计算,给出了组合拱式管桥可靠性的分析思路,认为影响结构构件抗力的主要因素是材料性能、几何参数和计算模式精度等随机变量,提出了确定目标可靠指标β_ο的方法,并以中心点法对组合拱式管桥结构构件或截面的可靠指标β_ο进行了分析和计算。考虑到计算β公式的繁复性,以FORTRAN语言编制了用于组合拱式管桥可靠性分析的CPMRA软件。以该软件计算可靠指标β的结果表明,所述分析方法是正确的,计算结果精度高,并证明该种管桥的常规设计方法过于保守,经济上不合理。

Abstract:: Overhead crossing pipe bridge is a very important structure for long-distance oil/gas pipeline,its reasonable structure design and safe reliability will tatally ensure this kind of pipeline to safe operation.Taking an arch-shape Combined-Arched Pipe Bridge (CAPB) as a research target,the paper applies the first-order second-moment theory to carry out reliability analysis on CAPB and provides the analysis ideas of reliability of CAPB.It considers that the major factors influencing the resistivity of structure members are such random variables as the material performances,geometric parameters and accuracy of models,and put forward the method which determines the target reliability indices β₀,and quantitatively analyses and calculates the structure reliability indices of CAPB with centre-point method.It developes reliability analysis software-CPMRA with FORTRAN language in order to deal with the complicated β equations.The indices results calculated by the software show that the analysis method described in the paper are correct with a high accuracy,and prove that the old design method of CAPB is too conservative to be reasonable in economy.

参考文献/References:

1 吴世伟:结构可靠度分析,人民交通出版社(北京),1990,8.
2 黄兴棣:工程结构可靠性设计,人民交通出版社(北京),1989,1.
3 李继华等:建筑结构概率极限状态设计,中国建筑工业出版社(北京),1990,10.
4 宋文利等:组合拱式管桥可变荷载统计分析,天然气工业,1996(5).
5 GBJ68-84(试行)建筑结构设计统一标准,中国建筑科学研究院,1984.
6 宋文利等:组合拱式管桥单项可靠指标的建立,西南石油学院学报,1996(2).
7 宋文利等:组合拱式管桥计算机模拟设计,天然气与石油,1995(4).
8 宋文利:组合拱式管桥可靠设计(硕士论文),西南石油学院,1994.

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备注/Memo

收稿日期:1996-11-8。
作者简介:宋文利,工程师,1969年5月生,1994年7月毕业于西南石油学院油气储运专业,获工学硕士学位.现在中国石油天然气总公司西北石油管道建设指挥部生产准备部从事长输原油管道的生产管理及科研等工作.

更新日期/Last Update: 1900-01-01