Título: | EVALUATION OF LATERAL LOADING ON PILES: PARAMETRIC STUDY FROM THE CASE CONDOMÍNIO ANÊMONA, UBATUBA/SP | ||||||||||||
Autor: |
GABRIELA ERNANDES SILVA SANTA FE |
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Colaborador(es): |
RAQUEL QUADROS VELLOSO - Orientador SANDRO SALVADOR SANDRONI - Coorientador |
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Catalogação: | 11/MAI/2020 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=47967&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=47967&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.47967 | ||||||||||||
Resumo: | |||||||||||||
The constant expansion of land occupation leads to the eventual construction
over soft clay layers, requiring the use of foundation piles and thus, greater
understanding of the subsurface material and the interaction between the
structures, especially in regards to the induced loads and displacements.
Naturally, the loads from the overhead structure are transmitted to the foundation,
causing it to suffer from the action of axial and transverse loads. In a foundation
design, the consideration of transverse loads acting on the surface is not always
sufficient, making it necessary to include the loads imposed along its length as
well. This study depicts the case of a building in Ubatuba/SP that collapsed due to
lateral stresses along the middle section of the piles, located close to the farthest
site boundary where a thicker layer of soft clay can be found. This movement was
analysed using four conventional methods (Tschebotarioff, De Beer and Wallays,
Stewart and Goh), as well as a numerical method for 2D and 3D modelling on the
Plaxis software. The conventional methods presented diverging results relative to
each other, of which. However, all four methods produced results with orders of
magnitude much greater than those obtained through numerical analysis. The
bidimensional model showed that the spacing between piles in the out-of-plane
axis is a factor of great influence and interferes in the simplifications of the 2D
model. Another finding was a reduction of up to 50 percent of the acting bending
moments when considering the group effect. The results from the 3D model were
in agreement with those from the 2D model, exhibiting only a 2 percent difference. In
general, a greater load on the piles closest to the farthest limit of the site was
confirmed, located on the thickest clay layer that generated bending moments
greater than those generated from the transverse load of the structure.
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