Fatigue behavior of H-section piles under lateral loads in cohesive soil

Most structures supporting solar panels are found on thin-walled metal piles partially driven into the ground, optimizing costs and construction time. These pile foundations are subjected to repetitive lateral loads from various external forces, such as wind, which can compromise the integrity of th...

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Autores: Pérez, José A., Ponce Torres, Alberto, Ríos Jiménez, José David, Sánchez González, Estíbaliz
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/163632
Acceso en línea:https://hdl.handle.net/11441/163632
https://doi.org/10.3390/buildings14103228
Access Level:acceso abierto
Palabra clave:Lateral fatigue loads
H-section piles
Cohesive soils
Pile-soil interaction
Open-ended piles
Pile foundations
Photovoltaic solar panel foundations
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spelling Fatigue behavior of H-section piles under lateral loads in cohesive soilPérez, José A.Ponce Torres, AlbertoRíos Jiménez, José DavidSánchez González, EstíbalizLateral fatigue loadsH-section pilesCohesive soilsPile-soil interactionOpen-ended pilesPile foundationsPhotovoltaic solar panel foundationsMost structures supporting solar panels are found on thin-walled metal piles partially driven into the ground, optimizing costs and construction time. These pile foundations are subjected to repetitive lateral loads from various external forces, such as wind, which can compromise the integrity of the pile-soil system. Given that the expected operational lifespan of photovoltaic solar plants is generally 20-30 years, predicting their service life under fatigue loads is crucial. This research analyzes the response of H-section piles to lateral fatigue loads in cohesive rigid soils through four field tests, subjected to load cycles of 55%, 72%, and 77% of the static failure load, corresponding to maximum loads of 25 kN, 32 kN, and 35 kN, respectively. Additionally, the effect of load cycles on the degradation of pile-soil adhesion is studied through two pull-out tests following cyclic tests. This study reveals that soil fatigue does not occur under repetitive loads and that soil stiffness remains constant once the cycles causing soil compaction have been overcome. Nevertheless, the accumulated plastic deflection of the soil increases steadily once soil compaction occurs due to cyclic loading. The implications of these results on the fatigue life of photovoltaic solar panel foundations are discussed.MDPIMecánica de Medios Continuos y Teoría de EstructurasTEP972: Mecánica de Materiales y Estructuras2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/163632https://doi.org/10.3390/buildings14103228reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésBuildings, 14(10) (3228).https://www.mdpi.com/2075-5309/14/10/3228info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1636322026-06-17T12:51:07Z
dc.title.none.fl_str_mv Fatigue behavior of H-section piles under lateral loads in cohesive soil
title Fatigue behavior of H-section piles under lateral loads in cohesive soil
spellingShingle Fatigue behavior of H-section piles under lateral loads in cohesive soil
Pérez, José A.
Lateral fatigue loads
H-section piles
Cohesive soils
Pile-soil interaction
Open-ended piles
Pile foundations
Photovoltaic solar panel foundations
title_short Fatigue behavior of H-section piles under lateral loads in cohesive soil
title_full Fatigue behavior of H-section piles under lateral loads in cohesive soil
title_fullStr Fatigue behavior of H-section piles under lateral loads in cohesive soil
title_full_unstemmed Fatigue behavior of H-section piles under lateral loads in cohesive soil
title_sort Fatigue behavior of H-section piles under lateral loads in cohesive soil
dc.creator.none.fl_str_mv Pérez, José A.
Ponce Torres, Alberto
Ríos Jiménez, José David
Sánchez González, Estíbaliz
author Pérez, José A.
author_facet Pérez, José A.
Ponce Torres, Alberto
Ríos Jiménez, José David
Sánchez González, Estíbaliz
author_role author
author2 Ponce Torres, Alberto
Ríos Jiménez, José David
Sánchez González, Estíbaliz
author2_role author
author
author
dc.contributor.none.fl_str_mv Mecánica de Medios Continuos y Teoría de Estructuras
TEP972: Mecánica de Materiales y Estructuras
dc.subject.none.fl_str_mv Lateral fatigue loads
H-section piles
Cohesive soils
Pile-soil interaction
Open-ended piles
Pile foundations
Photovoltaic solar panel foundations
topic Lateral fatigue loads
H-section piles
Cohesive soils
Pile-soil interaction
Open-ended piles
Pile foundations
Photovoltaic solar panel foundations
description Most structures supporting solar panels are found on thin-walled metal piles partially driven into the ground, optimizing costs and construction time. These pile foundations are subjected to repetitive lateral loads from various external forces, such as wind, which can compromise the integrity of the pile-soil system. Given that the expected operational lifespan of photovoltaic solar plants is generally 20-30 years, predicting their service life under fatigue loads is crucial. This research analyzes the response of H-section piles to lateral fatigue loads in cohesive rigid soils through four field tests, subjected to load cycles of 55%, 72%, and 77% of the static failure load, corresponding to maximum loads of 25 kN, 32 kN, and 35 kN, respectively. Additionally, the effect of load cycles on the degradation of pile-soil adhesion is studied through two pull-out tests following cyclic tests. This study reveals that soil fatigue does not occur under repetitive loads and that soil stiffness remains constant once the cycles causing soil compaction have been overcome. Nevertheless, the accumulated plastic deflection of the soil increases steadily once soil compaction occurs due to cyclic loading. The implications of these results on the fatigue life of photovoltaic solar panel foundations are discussed.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/163632
https://doi.org/10.3390/buildings14103228
url https://hdl.handle.net/11441/163632
https://doi.org/10.3390/buildings14103228
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Buildings, 14(10) (3228).
https://www.mdpi.com/2075-5309/14/10/3228
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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