悬索跨越管道地震响应分析  

Seismic Response Analysis of Cable-Suspending Pipes

作　　者：成磊[1] 刘昕 

机构地区：[1]新疆石油勘察设计研究院,新疆乌鲁木齐830026 [2]中国石油东南亚管道公司,北京100028

出　　处：《管道技术与设备》2013年第6期1-3,35,共4页Pipeline Technique and Equipment

摘　　要：悬索跨越管道在地震作用下易受破坏,其地震响应分析、抗震设计方法的研究己成为管道跨越工程设计中的重要课题。文中建立了ANSYS分析模型,运用大质量地震输入方式,以典型的地震波作用于悬索跨越管道,进行非线性动力时程分析,得到悬索跨越管道地震响应结果,分析了悬索跨越管道地震响应的规律和特点。结果表明:悬索跨越管道在地震作用下,弯管处受力最大,管跨中点位移最大,地震波轴向和竖向分量对结构响应更强烈。Suspending pipes are prone to be broken in an earthquake. The seismic study of suspending pipes is of great significance. An analysis model of cable-suspending pipelines is built in ANSYS and the seismic analysis method is introduced. By selecting the method of high-mass input seismic waves,typical seismic waves are input in cable-suspending pipes. Then the characters and regularity of seismic responses to cable-suspending pipelines is studied. The results show that,due to the impact of a strong earthquake,the bending part is under the greatest stress,the displacement of middle suspending pipes is largest,and the axial and vertical components of seismic waves has strong impacts.

关 键 词：悬索跨越管道 有限元分析 地震 大质量法 

分 类 号：TE88[石油与天然气工程—油气储运工程]