Axial Vibration Analysis of Buried Pipeline under Earthquake Interaction
The model of buried pipeline was adopted as Euler- Bernoulli beam, which was acted by inner fluid and outer constrained soil. The differential equation of axial vibration was deduced, applying the Hamilton principle. The differential equation of axial vibration was changed into basic form of dynamics equations, considering earthquake excitation as random wave. Utilizing the method of the elasticity time-travel analysis to program, the responses of the displacement and acceleration at the pipe midpoint obtained, moreover the pipe elements were analyzed. The soil parameter, pipe parameter, earthquake dynamic parameter and the supporting distance were considered as the influence element of pipe response. The characteristic of the soil had an influence on response of velocity and acceleration. Along with soil from soft to hard, the response of acceleration became smaller and smaller. In the same soil, the earthquake damage rate of the piping increased along with earthquake intensity increasing.
earthquake interaction buried pipeline axial vibration displacement
Tingyue Hao
Department of Civil Engineering Tangshan College Tangshan, China
国际会议
哈尔滨
英文
246-248
2011-01-18（万方平台首次上网日期，不代表论文的发表时间）