Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections
A Boundary Element Method (BEM) approach was developed for the analysis of pile groups. The proposed method includes: the non-linear behavior of the soil by a hyperbolic modulus reduction curve; the non-linear response of reinforced concrete pile sections, also taking into account the influence of t...
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doaj-1124c2189886456e87a4d2a6488f2b842020-11-25T00:11:36ZengMDPI AGMaterials1996-19442018-02-0111230010.3390/ma11020300ma11020300Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete SectionsStefano Stacul0Nunziante Squeglia1Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 (PI) Pisa, ItalyDepartment of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 (PI) Pisa, ItalyA Boundary Element Method (BEM) approach was developed for the analysis of pile groups. The proposed method includes: the non-linear behavior of the soil by a hyperbolic modulus reduction curve; the non-linear response of reinforced concrete pile sections, also taking into account the influence of tension stiffening; the influence of suction by increasing the stiffness of shallow portions of soil and modeled using the Modified Kovacs model; pile group shadowing effect, modeled using an approach similar to that proposed in the Strain Wedge Model for pile groups analyses. The proposed BEM method saves computational effort compared to more sophisticated codes such as VERSAT-P3D, PLAXIS 3D and FLAC-3D, and provides reliable results using input data from a standard site investigation. The reliability of this method was verified by comparing results from data from full scale and centrifuge tests on single piles and pile groups. A comparison is presented between measured and computed data on a laterally loaded fixed-head pile group composed by reinforced concrete bored piles. The results of the proposed method are shown to be in good agreement with those obtained in situ.http://www.mdpi.com/1996-1944/11/2/300laterally loaded pilespile groupshadowing effectboundary element methodtension stiffeningreinforced concretesuction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Stefano Stacul Nunziante Squeglia |
spellingShingle |
Stefano Stacul Nunziante Squeglia Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections Materials laterally loaded piles pile group shadowing effect boundary element method tension stiffening reinforced concrete suction |
author_facet |
Stefano Stacul Nunziante Squeglia |
author_sort |
Stefano Stacul |
title |
Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections |
title_short |
Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections |
title_full |
Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections |
title_fullStr |
Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections |
title_full_unstemmed |
Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections |
title_sort |
analysis method for laterally loaded pile groups using an advanced modeling of reinforced concrete sections |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2018-02-01 |
description |
A Boundary Element Method (BEM) approach was developed for the analysis of pile groups. The proposed method includes: the non-linear behavior of the soil by a hyperbolic modulus reduction curve; the non-linear response of reinforced concrete pile sections, also taking into account the influence of tension stiffening; the influence of suction by increasing the stiffness of shallow portions of soil and modeled using the Modified Kovacs model; pile group shadowing effect, modeled using an approach similar to that proposed in the Strain Wedge Model for pile groups analyses. The proposed BEM method saves computational effort compared to more sophisticated codes such as VERSAT-P3D, PLAXIS 3D and FLAC-3D, and provides reliable results using input data from a standard site investigation. The reliability of this method was verified by comparing results from data from full scale and centrifuge tests on single piles and pile groups. A comparison is presented between measured and computed data on a laterally loaded fixed-head pile group composed by reinforced concrete bored piles. The results of the proposed method are shown to be in good agreement with those obtained in situ. |
topic |
laterally loaded piles pile group shadowing effect boundary element method tension stiffening reinforced concrete suction |
url |
http://www.mdpi.com/1996-1944/11/2/300 |
work_keys_str_mv |
AT stefanostacul analysismethodforlaterallyloadedpilegroupsusinganadvancedmodelingofreinforcedconcretesections AT nunziantesqueglia analysismethodforlaterallyloadedpilegroupsusinganadvancedmodelingofreinforcedconcretesections |
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1725403219118522368 |