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A Study of the Vibration Safety Criterion on the Dynamic Behavior of Buried Pipeline with the Free Ends  

이병길 (부경대학교)
정진호 (부경대학교)
장봉현 (부경대학교)
안명석 (동서대학교)
Publication Information
Explosives and Blasting / v.22, no.3, 2004 , pp. 13-26 More about this Journal
Abstract
This work reports results of our study on the dynamic response of buried pipelines depending on their boundary conditions. We have studied behavior of the buried pipelines both along the axial and the transverse direction with a boundary condition of free ends. The buried pipelines are modeled as beams on elastic foundation while the seismic wave as a ground displacement in the form of a sinusoidal wave. The natural frequency, its mode, and the effect of parameters have been interpreted in terms of the free vibration. In order to investigate the response on the earthquake, the resulting frequency and the mode shape obtained from the free vibration have been utilized to derive the mathematical formula for the farced vibration. We have also completed the computer program to simulate the time-displacement graphs of the pipe lines with free ends for both cases of vibrations.
Keywords
buried pipeline; boundary condition; free ends; dynamic behavior;
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