Seismic vulnerability assessment of buried pipelines: A 3D parametric study

Abstract Pipeline structural analysis is a well-developed topic in engineering and research practice. Since water, oil or gas pipeline systems are key part of modern development, therefore, it important to ensure an appropriate behavior under seismic action. In this paper, the response buried pipelines numerically simulated using three-dimensional (3D) parametric model soil-pipeline interaction. The role several parameters on both soil incorporated into 2D-1D space separated representation based Proper Generalized Decomposition (PGD) framework, which allows addressing 3D problems while reducing computational complexity 1D 2D characteristic problems. These results can be used for design, safety evaluation protection crossing area calculated real time from solution associated problem within PGD framework.