Influence of spatially variable side friction and collocated data on single and multiple shaft resistances

Detalhes bibliográficos
Autor(a) principal: Klammler, Harald
Data de Publicação: 2013
Outros Autores: McVay, Michael, Lai, Peter, Horhota, David
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/15872
Resumo: Texto completo: acesso restrito. p. 84–94
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spelling Klammler, HaraldMcVay, MichaelLai, PeterHorhota, DavidKlammler, HaraldMcVay, MichaelLai, PeterHorhota, David2014-09-09T14:35:13Z20131090-0241http://repositorio.ufba.br/ri/handle/ri/15872v. 139, n. 1Texto completo: acesso restrito. p. 84–94Reliability-based design, such as LRFD, aims at meeting desired probability of failure levels for engineered structures. The present work attempts to contribute to this field by analyzing the influence of spatially variable soil/rock strength on the axial resistance uncertainty of single and multiple shafts in group layouts. This includes spatial variability over the individual shaft surfaces, effects of limited data, random measurement errors, and workmanship. A possible correlation between boring data inside or near the footprint of a foundation and the foundation itself is considered. In a geostatistical approach, spatial averaging (upscaling) and a degenerate case of ordinary kriging are applied to develop variance reduction charts and design equations for a series of foundation group layouts (single, double, triple, and quadruple). For the potential situation of an unknown horizontal correlation range at a site, the worst case scenarios are identified and demonstrated in an example problem. Resulting probabilities of failure are applied to the whole foundation (i.e., group) rather than single objects. It is found that a boring at the center of a group footprint can significantly reduce resistance prediction uncertainty, especially under the worst case scenario for unknown horizontal correlation range. In contrast, independent of the presence of a center boring or not, the uncertainty reduction through additional borings becomes small, once four or five borings are available.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-05-20T11:51:09Z No. of bitstreams: 1 10.1061(ASCE)GT.1943-5606.0000728.pdf: 1021346 bytes, checksum: be55da62c0a3eab8d64ba91996d7d6c6 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2014-09-09T14:35:13Z (GMT) No. of bitstreams: 1 10.1061(ASCE)GT.1943-5606.0000728.pdf: 1021346 bytes, checksum: be55da62c0a3eab8d64ba91996d7d6c6 (MD5)Made available in DSpace on 2014-09-09T14:35:13Z (GMT). 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dc.title.pt_BR.fl_str_mv Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
dc.title.alternative.pt_BR.fl_str_mv Journal of Geotechnical and Geoenvironmental Engineering
title Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
spellingShingle Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
Klammler, Harald
LRFD
Shear resistance
Spatial analysis
Deep foundations
title_short Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
title_full Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
title_fullStr Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
title_full_unstemmed Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
title_sort Influence of spatially variable side friction and collocated data on single and multiple shaft resistances
author Klammler, Harald
author_facet Klammler, Harald
McVay, Michael
Lai, Peter
Horhota, David
author_role author
author2 McVay, Michael
Lai, Peter
Horhota, David
author2_role author
author
author
dc.contributor.author.fl_str_mv Klammler, Harald
McVay, Michael
Lai, Peter
Horhota, David
Klammler, Harald
McVay, Michael
Lai, Peter
Horhota, David
dc.subject.por.fl_str_mv LRFD
Shear resistance
Spatial analysis
Deep foundations
topic LRFD
Shear resistance
Spatial analysis
Deep foundations
description Texto completo: acesso restrito. p. 84–94
publishDate 2013
dc.date.issued.fl_str_mv 2013
dc.date.accessioned.fl_str_mv 2014-09-09T14:35:13Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/15872
dc.identifier.issn.none.fl_str_mv 1090-0241
dc.identifier.number.pt_BR.fl_str_mv v. 139, n. 1
identifier_str_mv 1090-0241
v. 139, n. 1
url http://repositorio.ufba.br/ri/handle/ri/15872
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000728
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