Simulation Analysis of Seismic Response of Long-distance Suspended Pipeline

In order to study the dynamic response of the long-distance suspended pipeline under the action of seismic load, the general finite element software ABAQUS has been used to conduct numerical simulation. The stress and deformation characteristics of the suspended pipeline under the distribution have been analyzed. The effects of the parameters, like the suspension length, the soil parameters, the pipe size and the pipe wall thickness, on the dynamic response of the suspended pipe have been investigated. The results show that the pipe wall thickness, the suspension length, the soil parameters and the pipe diameter have a great influence on the seismic response of the buried pipeline, and the pipe diameter has the greatest influence. In a certain diameter range, the peak stress and displacement gradually decrease with the pipe diameter. But the peak stress would increase with the pipe diameter when the critical value is reached. The study results could provide references for the design, safety maintenance and scientific management of long distance suspended pipeline.