Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/54680
Title: On soil-structure interaction in large non-slender partially buried structures
Authors: Vega, J.
Aznárez, J. J. 
Santana, A. 
Alarcón, E.
Padrón, L. A. 
Pérez, J. J.
Maeso, O. 
UNESCO Clasification: 3313 Tecnología e ingeniería mecánicas
Keywords: Soil-structure interaction
Direct method
Three-step solution
Buried structures
Boundary Element Method
Issue Date: 2013
Publisher: 1570-761X
Journal: Bulletin of Earthquake Engineering 
Abstract: This paper addresses the seismic analysis of a deeply embedded non-slender structure hosting the pumping unit of a reservoir. The dynamic response in this type of problems is usually studied under the assumption of a perfectly rigid structure using a sub-structuring procedure (three-step solution) proposed specifically for this hypothesis. Such an approach enables a relatively simple assessment of the importance of some key factors influencing the structural response. In this work, the problem is also solved in a single step using a direct approach in which the structure and surrounding soil are modelled as a coupled system with its actual geometry and flexibility. Results indicate that, quite surprisingly, there are significant differences among prediction using both methods. Furthermore, neglecting the flexibility of the structure leads to a significant underestimation of the spectral accelerations at certain points of the structure.
URI: http://hdl.handle.net/10553/54680
ISSN: 1570-761X
DOI: 10.1007/s10518-013-9433-8
Source: Bulletin of Earthquake Engineering[ISSN 1570-761X],v. 11, p. 1403-1421
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