The Behavior of a Building with Shallow Foundations on a Stiff Lateritic Clay

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by Luciano Décourt, (F.ASCE), Luciano Decourt Engenheiros, Consultores Ltda, Sao Paulo, Brazil,

Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments:

Abstract: The use of shallow foundations for buildings in Sao Paulo, either on soils of the Tertiary Sedimentary Basin of Sao Paulo (TSBSP) or on those of saprolitic origin is not as frequent as it could be. The Rimini building would have been another one among those designed by the author on shallow foundations if fortunate decisions to perform unusual tests at this site were not taken. Not only the author but also many other colleagues elected this a research site. The objectives of the research were reached. But, the highlight was the extraordinary behavior, in terms of stiffness, of these lateritic soils, which are frequently found in tropical regions. This, to the authors knowledge has been detected for the first time. The probable confirmation of this finding will in the near future allow substantial reductions in the cost of foundations on these soils.

Subject Headings: Shallow foundations | Soil properties | Clays | Soil-structure interaction | Building design | Foundation design | Basins | Sediment | Sao Paulo | Brazil | South America

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