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MOTA, M. M. C. Soil-structure interaction in buildings with deep foundation: numerical method and results observed in field. 2009. 222 p. Thesis (Doctoral) – Escola de Engenharia de São Carlos, Universidade de São Paulo, São Paulo, 2009. Design of concrete structures for multi-story buildings with deep foundation is considered in this work, taking in account the soil-structure interaction. This interaction is analysed with a numerical method where the superstructure (slabs, beams, and columns), and the foundation structural elements (blocks and piles) are considered a unique structure, modeled by the finite element method and implemented in the PEISE (soil-structure interaction in spatial frame), software that was developed in this search. The geo-technical model proposed by Aoki and Lopes (1975) represents the soil, where Mindlin’s solution is used to calculate displacements in a semi-infinite, elastic, continuous, and isotropic environment. This solution also considers the existence of an unmovable surface, under which the soil deformations shall be neglected. The elastic response of soil-structure interaction is subordinated to limit values observed in “in situ” loading capacity piles tests. The examples elaboration proves the developed formulation validity through results comparison with others methodologies. Also the structural performance of a 26 story building with augercast piles was observed during the construction by measurement of settlements and columns length variation. Settlements were measured by means of optical level. Loads over columns were indirectly evaluated through column length variation, using a demountable mechanical extensometer and considering corrections due to the variation of environmental conditions and to the concrete’s rheology.

Interação solo-estrutura em edifícios com fundação profunda: método numérico e resultados observados no campo