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Mathematical Problems in Engineering
Volume 2013, Article ID 875376, 8 pages
http://dx.doi.org/10.1155/2013/875376
Research Article

FEM Analysis of Dynamic Response of Buried Fiber Reinforced Plastic Matrix Pipe under Seismic Load

1College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
2Suqian Water Authority, Suqian 223800, China
3College of Mechanics and Materials, Hohai University, Nanjing 210098, China
4China Institute of Water Resources and Hydropower Research, Beijing 100038, China

Received 18 July 2013; Accepted 15 September 2013

Academic Editor: Zhiqiang Hu

Copyright © 2013 Xu Lei et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Fiber reinforced plastic matrix pipes have been widely used in the field of civil engineering and hydraulic engineering. In general, the existing FEM models used in the seismic analysis of buried pipes do not fully consider the dynamic interaction between pipe and surrounding soil, and most of the models are proposed for homogeneous pipe. Therefore, the existing models cannot be directly applied to the seismic analysis of fiber reinforced plastic matrix pipes with laminated structure. Based on the aforementioned, the FEM model for the seismic analysis of fiber reinforced plastic matrix pipes is presented by taking consideration of the laminated structure, the complicated dynamic interaction between pipe and surrounding soil, and the propagation of seismic scattering waves from finite field to infinite field. The analysis results of a project case show that the proposed model can reasonably analyse the dynamic response of buried fiber reinforced plastic matrix pipes under seismic load.