Displacement-based design of shallow foundations with macroelement

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

4 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)853-869
Journal / PublicationSoils and Foundations
Volume49
Issue number6
Publication statusPublished - Dec 2009
Externally publishedYes

Abstract

The scope of this paper is to demonstrate the utility of macroelement modeling of shallow foundations in performance- based design. We focus on the settlements, horizontal displacements and rotations of a bridge pier founded on a rigid circular foundation on a relatively soft cohesive soil. A newly developed macroelement model is used for the description of the footing-soil system. Its objective is to reproduce the geometric (uplift of the footing) and material non-linearities (soil plasticity) that arise at the foundation level during a seismic excitation. The utility of macroelement modeling resides in the fact that it allows for the execution of a large number of non-linear dynamic analyses of the pier under the horizontal and vertical components of real acceleration time histories as well as under the combination of both. The results concentrate on two main points: the influence of the vertical component of the seismic input motion on the maximum and residual displacements of the foundation and on a discussion of possible correlations betweenthe induced displacements at the foundation level and certain parameters describing the severity of the seismic input motion.

Research Area(s)

  • Macroelement modeling, Non-linear dynamic analysis, Performance-based design, Plasticity models, Residual displacements, Shallow foundations (IGC: E8/H1)

Citation Format(s)

Displacement-based design of shallow foundations with macroelement. / Chatzigogos, C. T.; Pecker, A.; Salençon, J.

In: Soils and Foundations, Vol. 49, No. 6, 12.2009, p. 853-869.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal