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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：基建处处长
其他任职：海岸和近海工程国家重点实验室副主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：水利工程系
学科：水工结构工程. 港口、海岸及近海工程. 防灾减灾工程及防护工程
办公地点：综合实验楼4号，207房间
联系方式：lixin@dlut.edu.cn
电子邮箱：lixin@dlut.edu.cn
Nonlinear Seismic Analysis of Free Spanning Submarine Pipelines under Spatially Varying Earthquake Ground Motions
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论文类型：会议论文
发表时间：2008-07-06
收录刊物：EI、CPCI-S、Scopus
页面范围：269-276
关键字：Free spanning submarine pipeline; nonlinear seismic analysis; spatially varying earthquake
摘要：A study of the nonlinear seismic response of free spanning submarine pipelines subject to a spatially varying earthquake ground motion is carried out. Firstly, an improved method for simulating multiple-station ground motions is proposed. Secondly, the motion equations of the pipeline under multiple-station excitation are derived. The hydrodynamic force applied on the pipeline is simplified as added masses. Thirdly, a nonlinear three-dimensional (3D) finite element model of free spanning submarine pipeline is established. The effects of different material constitutional relationships of steel pipe and soil as well as large displacement are discussed.