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Published in: Geotechnical and Geological Engineering 6/2012

01-12-2012 | Original paper

Factors Affecting Differential Settlements of Framed Structures

Authors: Angeliki E. Arapakou, Vasileios P. Papadopoulos

Published in: Geotechnical and Geological Engineering | Issue 6/2012

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Abstract

The estimation of settlements, differential settlements and relative rotations on critical positions of the foundation is indispensable when carrying out analyses of both ultimate and serviceability limit states. The use of finite element method is recommended in cases where soil–structure interaction is expected to be significant. The scope of this paper is a contribution to the investigation of general trends in the effects of main parameters on the interaction. A typical five-span frame building with varying rigidity was examined by using finite element numerical method under 2-D conditions. Soil below the foundation was simulated as linearly elastic or elastoplastic medium. The effects of superstructure and foundation rigidity are closely related to the effect of soil deformability thereby analyses were performed in terms of relative rigidity factors. The effects of specific foundation types, namely isolated footings, flexible and rigid mat, were investigated in detail. The conclusions were focused on the development of normalized differential settlements, on the influence of the relative rigidity factor as well as on the determination of those cases where the interaction approach is necessary to be used for the analysis.
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Metadata
Title
Factors Affecting Differential Settlements of Framed Structures
Authors
Angeliki E. Arapakou
Vasileios P. Papadopoulos
Publication date
01-12-2012
Publisher
Springer Netherlands
Published in
Geotechnical and Geological Engineering / Issue 6/2012
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-012-9546-x