Permanent deformation estimates of dynamic equipment foundations: Application to a gas turbine in granular soils

Galindo Aires, Rubén Ángel and Illueca Jové, Manuel and Jimenez Rodriguez, Rafael (2014). Permanent deformation estimates of dynamic equipment foundations: Application to a gas turbine in granular soils. "Soil Dynamics and Earthquake Engineering", v. 63 ; pp. 8-18. ISSN 0267-7261. https://doi.org/10.1016/j.soildyn.2014.03.002.

Description

Title: Permanent deformation estimates of dynamic equipment foundations: Application to a gas turbine in granular soils
Author/s:
  • Galindo Aires, Rubén Ángel
  • Illueca Jové, Manuel
  • Jimenez Rodriguez, Rafael
Item Type: Article
Título de Revista/Publicación: Soil Dynamics and Earthquake Engineering
Date: August 2014
ISSN: 0267-7261
Volume: 63
Subjects:
Freetext Keywords: Machinery; Permanent deformations; High number cycles; Cyclic loading
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería y Morfología del Terreno
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Permanent displacements of a gas turbine founded on a fine, poorly graded, and medium density sand are studied. The amplitudes and modes of vibration are computed using Barkan´s formulation, and the “High-Cycle Accumulation” (HCA) model is employed to account for accumulated deformations due to the high number of cycles. The methodology is simple: it can be easily incorporated into standard mathematical software, and HCA model parameters can be estimated based on granulometry and index properties. Special attention is devoted to ‘transient’ situations at equipment´s start-up, during which a range of frequencies – including frequencies that could be similar to the natural frequencies of the ground – is traversed. Results show that such transient situations could be more restrictive than stationary situations corresponding to normal operation. Therefore, checking the stationary situation only might not be enough, and studying the influence of transient situations on computed permanent displacements is needed to produce a proper foundation design

More information

Item ID: 36034
DC Identifier: http://oa.upm.es/36034/
OAI Identifier: oai:oa.upm.es:36034
DOI: 10.1016/j.soildyn.2014.03.002
Official URL: http://www.sciencedirect.com/science/article/pii/S0267726114000645#
Deposited by: Memoria Investigacion
Deposited on: 29 Jun 2015 15:04
Last Modified: 29 Jun 2015 15:04
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