EXPERIMENTAL AND NUMERICAL STUDY ON FREE SPANNING PIPELINES SUBJECTED TO EARTHQUAKES
A series of model experiments of free spanning submarine pipeline are carried out on an underwater shaking table in the Sate Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology. The factors to affect the dynamic response of pipeline, including seismic wave types and input directions are studied in the dynamic experiments. A hydrodynamic force model on the base of Wake force model is presented to analyze dynamic response of free spanning submarine pipeline under earthquakes. Using finite element method, discrete equations of motion are derived from the hydrodynamic force model. Three dimensional FE model is established to simulate the experimental conditions. The numerical results considering sine wave inputs and simulated El centro earthquake inputs are obtained. The comparison of numerical results with experimental results shows that the improved Wake force model could satisfactorily predict dynamic response on the free spanning submarine pipelines subjected to earthquakes.
Free spanning submarine pipelines dynamic model tests hydrodynamic force model finite element analysis earthquake
X. Li Q. Jin R.B. Dong J. Zhou
Associate Professor, School. of Civil and Hydraulic Engineering , Dalian University of Technology, D Lecturer, School. of Civil and Hydraulic Engineering , Dalian University of Technology, Dalian. Chin PH.D Student, School. of Civil and Hydraulic Engineering , Dalian University of Technology, Dalian. Professor, School. of Civil and Hydraulic Engineering , Dalian University of Technology, Dalian. Chi
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）