摘要
近年来国内外时常发生地震对石油天然气管道的破坏事件,而架空管道是油气管线输送工程的薄弱环节,为保证架空管道在地震作用下的安全性,采用数值模拟方法建立架空输油管道有限元模型,研究架空管道地震破坏特征,分析架空管道典型破坏模式。研究结果表明,在地震作用下,较高的活动支架可能会发生倒塌,管道弯折处为较易发生破坏的部位。管道与管架之间的相对滑动也可能造成管道掉落,设计时应同时考虑管道及管架抗震问题。
In recent years,earthquakes both domestically and internationally have frequently caused damage to oil and gas pipelines,with overhead pipelines identified as critical vulnerabilities within pipeline transportation systems.To ensure the seismic safety of overhead pipelines,this study employs numerical simulation methods to develop a finite element model of overhead oil pipelines.The seismic failure characteristics of these pipelines are investigated,and several typical failure modes are analyzed in detail.The results indicate that during seismic events,higher movable supports are susceptible to collapse,and bending sections of the pipeline are particularly prone to failure.Additionally,relative sliding between the pipeline and the supporting pipe rack can lead to pipeline detachment.Therefore,it is essential to address seismic considerations for both the pipeline and its supports concurrently during the design process.
作者
张亮超
郭恩栋
杨斐
贺冰
闫培雷
于天洋
Zhang Liangchao;Guo Endong;Yang Fei;He Bing;Yan Peilei;Yu Tianyang(Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;Guangzhou Urban Planning Survey and Design Institute Co.,Ltd.,Guangzhou 510060,China;Guangdong Earthquake Agency,Guangzhou 510070,China;Guangdong Earthquake Disaster Risk Control and Prevention Center,Guangzhou 510070,China)
出处
《震灾防御技术》
北大核心
2025年第2期409-416,共8页
Technology for Earthquake Disaster Prevention
基金
国家重点研发计划项目(2023YFC3805201)
广州市主城区生命线管网工程地震灾害风险点危险源排查项目(GDCFCG-GDGZ-20210005)
广州市城市规划勘测设计研究院有限公司科技基金项目(RDI2220204125)。
关键词
架空管道
时程分析
破坏等级
管道支架
抗震性能
Overhead pipeline
Time history analysis
Failure grade
Pipe support
Seismic performance
