Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas

ilustraciones, fotografías, diagramas

Autores:
Palomino Barón, Diana Lucía
Tipo de recurso:
Fecha de publicación:
2023
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/84356
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/84356
https://repositorio.unal.edu.co/
Palabra clave:
620 - Ingeniería y operaciones afines::624 - Ingeniería civil
690 - Construcción de edificios::691 - Materiales de construcción
POLIPROPILENO
HORMIGON ARMADO
Polypropylene
Reinforced concrete
FRC
Polypropylene fibres
Tensile
Toughness
Bending
Cyclic loading
Residual stress
Fibras de polipropileno
Tensión
Tenacidad
Flexión
Cargas cíclicas
Esfuerzo residual
Rights
openAccess
License
Reconocimiento 4.0 Internacional
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oai_identifier_str oai:repositorio.unal.edu.co:unal/84356
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
dc.title.translated.eng.fl_str_mv Flexural behavior of polypropylene fiber reinforced concrete beams subjected to cyclic loading
title Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
spellingShingle Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
620 - Ingeniería y operaciones afines::624 - Ingeniería civil
690 - Construcción de edificios::691 - Materiales de construcción
POLIPROPILENO
HORMIGON ARMADO
Polypropylene
Reinforced concrete
FRC
Polypropylene fibres
Tensile
Toughness
Bending
Cyclic loading
Residual stress
Fibras de polipropileno
Tensión
Tenacidad
Flexión
Cargas cíclicas
Esfuerzo residual
title_short Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
title_full Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
title_fullStr Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
title_full_unstemmed Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
title_sort Comportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicas
dc.creator.fl_str_mv Palomino Barón, Diana Lucía
dc.contributor.advisor.none.fl_str_mv Lizarazo Marriaga, Juan Manuel
Luna Tamayo, Patricia
dc.contributor.author.none.fl_str_mv Palomino Barón, Diana Lucía
dc.subject.ddc.spa.fl_str_mv 620 - Ingeniería y operaciones afines::624 - Ingeniería civil
690 - Construcción de edificios::691 - Materiales de construcción
topic 620 - Ingeniería y operaciones afines::624 - Ingeniería civil
690 - Construcción de edificios::691 - Materiales de construcción
POLIPROPILENO
HORMIGON ARMADO
Polypropylene
Reinforced concrete
FRC
Polypropylene fibres
Tensile
Toughness
Bending
Cyclic loading
Residual stress
Fibras de polipropileno
Tensión
Tenacidad
Flexión
Cargas cíclicas
Esfuerzo residual
dc.subject.lemb.spa.fl_str_mv POLIPROPILENO
HORMIGON ARMADO
dc.subject.lemb.eng.fl_str_mv Polypropylene
Reinforced concrete
dc.subject.proposal.eng.fl_str_mv FRC
Polypropylene fibres
Tensile
Toughness
Bending
Cyclic loading
Residual stress
dc.subject.proposal.spa.fl_str_mv Fibras de polipropileno
Tensión
Tenacidad
Flexión
Cargas cíclicas
Esfuerzo residual
description ilustraciones, fotografías, diagramas
publishDate 2023
dc.date.accessioned.none.fl_str_mv 2023-07-28T15:34:54Z
dc.date.available.none.fl_str_mv 2023-07-28T15:34:54Z
dc.date.issued.none.fl_str_mv 2023-07
dc.type.spa.fl_str_mv Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/TM
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/84356
dc.identifier.instname.spa.fl_str_mv Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv https://repositorio.unal.edu.co/
url https://repositorio.unal.edu.co/handle/unal/84356
https://repositorio.unal.edu.co/
identifier_str_mv Universidad Nacional de Colombia
Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv spa
language spa
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ACI Committee 221. (1998). State-of-the-Art Report on Alkali-Aggregate Reactivity. Fermington Hills: American Concrete Institute, 98(Reapproved), 1–31.
ACI Committee 228.2R. (2013). Report on Nondestructive Test Methods for Evaluation of Concrete in Structures. In Fermington Hills: American Concrete Institute.
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ACI Committee 544.3R. (2008). Guide for Specifying, Proportioning, and Production of Fiber-Reinforced Concrete. Fermington Hills: American Concrete Institute, 1–16.
ACI Committee 544.4R. (2018). Guide to Design with Fiber-Reinforced Concrete. In Fermington Hills: American Concrete Institute.
ACI Committee 544.5R. (2010). Report on the Physical Properties and Durability of Fiber-Reinforced Concrete. In Fermington Hills: American Concrete Institute.
ACI Committee 544.8R. (2016). Report on Indirect Method to Obtain Stress Strain Response of Fiber- Reinforced COncrete (FRC). Fermington Hills: American Concrete Institute.
ASTM A820/A820M. (2011). Standard Specification for Steel Fibers for Fiber-Reinforced Concrete. American Society for Testing and Material., October, 1–4.
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dc.format.extent.spa.fl_str_mv xix, 160 páginas
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia
dc.publisher.program.spa.fl_str_mv Bogotá - Ingeniería - Maestría en Ingeniería - Estructuras
dc.publisher.faculty.spa.fl_str_mv Facultad de Ingeniería
dc.publisher.place.spa.fl_str_mv Bogotá, Colombia
dc.publisher.branch.spa.fl_str_mv Universidad Nacional de Colombia - Sede Bogotá
institution Universidad Nacional de Colombia
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spelling Reconocimiento 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Lizarazo Marriaga, Juan Manuel5773f81a6037772a79e67aad79a143d9Luna Tamayo, Patriciaeb0a0c55c0a8abe56c9ad14ce44b590ePalomino Barón, Diana Lucía419688535841a2090bdfea274270df742023-07-28T15:34:54Z2023-07-28T15:34:54Z2023-07https://repositorio.unal.edu.co/handle/unal/84356Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, fotografías, diagramasLa siguiente investigación presenta los resultados del estudio experimental del comportamiento a flexión y la capacidad de absorción de energía de vigas de concreto reforzado con fibras de polipropileno para cuatro diferentes dosificaciones de fibra 1.8kg/m3, 4.5 kg/m3, 6.0 kg/m3 y 7.5kg/m3, dos mezclas control sin fibras y dos tamaños diferentes de agregado grueso (TMN, 12.7mm y 19mm) después de estar bajo dos patrones de carga de tipo cíclico con 40 y 80 repeticiones (C1 y C2) controlando en ambos casos la amplitud de la carga, la cual se consideró constante e igual al 65% del módulo de ruptura promedio. Para las dosificaciones establecidas y las propiedades mecánicas de las fibras usadas, las probetas presentaron un comportamiento de ablandamiento debido a la caída repentina de la carga después de la fisuración, por lo tanto, los esfuerzos residuales calculados después de la rotura y la tenacidad se vieron significativamente afectados por la aplicación de las cargas externas de naturaleza cíclica ya que las probetas perdieron aún más la capacidad de mantener la carga. Adicional a lo anterior se evaluó la pérdida de resistencia de las fibras después de 110 días de exposición en cuatro concentraciones de iones de alcalinos de sodio y potasio (NaOH y KOH) teniendo en cuenta la composición de la solución de poros que simulan el ambiente de un concreto tradicional con solo cemento denominado 0% y tres concretos con adición de humo de sílice entre 5% y 15%. Las fibras expuestas a una concentración de 0% fueron las que más reaccionaron con el medio alcalino, disminuyendo el esfuerzo último de tensión en 16.17% con respecto a las fibras en estado natural (igual a 510.26MPa). En las fibras con adición de humo de sílice para los grupos de 5% y 10% se disminuyó el esfuerzo último de tensión en 5.11% y 1.74% respectivamente, para el último grupo (15%) el esfuerzo no se vio afectado por la concentración alcalina, incluso se obtuvo un ligero mayor valor de resistencia última de 526.65MPa. (Texto tomado de la fuente)The following experimental study researched the behavior of reinforced concrete beams with four different PP fibre dosages 1.8kg/m3, 4.5 kg/m3, 6 kg/m3 y 7.5kg/m3 subject to cyclic flexural loading. Using two control samples with no fibre dosage, and varying coarse aggregates (TMN, 12.7mm y 19mm), limiting load applications to 65% of average ultimate moment was applied in 40 and 80 cycle tests (C1 y C2). For fiber added beams, there was a stiffness loss after cracking “flexural softening”, hence, residual stress and toughness were significantly affected by the cyclic nature of loading for test samples lost their capacity to withstand loading. PP fiber strength loss was evaluated after 110 days of NaOH and KOH exposure, using four different ion concentrations to simulate the composition of the cement pore solution expected environment of traditional “0%” cement, and three different concentrations of fly ash and silica fume concrete. Fibres from 0% cement had the highest reaction to the alkaline environment, reducing up to 16.77% of tensile strength from unexposed fibres. Fibres with different fly ash concentrations 5% and 10% reducing up to 5.11% to 1.74% respectively tensile strength. In the last one group (15%) the tensile strength was not affected by the alkaline environment their strength in up to 3.21% more than patron group.MaestríaMagíster en Ingeniería - EstructurasMateriales para Estructurasxix, 160 páginasapplication/pdfspaUniversidad Nacional de ColombiaBogotá - Ingeniería - Maestría en Ingeniería - EstructurasFacultad de IngenieríaBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá620 - Ingeniería y operaciones afines::624 - Ingeniería civil690 - Construcción de edificios::691 - Materiales de construcciónPOLIPROPILENOHORMIGON ARMADOPolypropyleneReinforced concreteFRCPolypropylene fibresTensileToughnessBendingCyclic loadingResidual stressFibras de polipropilenoTensiónTenacidadFlexiónCargas cíclicasEsfuerzo residualComportamiento a flexión de vigas de concreto reforzado con fibras de polipropileno sometidas a cargas cíclicasFlexural behavior of polypropylene fiber reinforced concrete beams subjected to cyclic loadingTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMACI Committee 211. (1991). Standard practice for selecting proportions for normal heavyweight, and mass concrete. Fermington Hills: American Concrete Institute, Reapproved.ACI Committee 221. (1998). State-of-the-Art Report on Alkali-Aggregate Reactivity. Fermington Hills: American Concrete Institute, 98(Reapproved), 1–31.ACI Committee 228.2R. (2013). Report on Nondestructive Test Methods for Evaluation of Concrete in Structures. In Fermington Hills: American Concrete Institute.ACI Committee 318 (2019). Requisitos de Reglamentos para Concreto Estructural (ACI 318-19), Fermington Hills: American Concrete Institute 683 (2019). https://www.udocz.com/apuntes/53414/aci-318-19-espanol.ACI Committee 544.1R. (2009). Report on Fiber Reinforced Concrete Reported by ACI Committee 544. In Fermington Hills: American Concrete Institute (Vol. 96, Issue Reapproved).ACI Committee 544.2R. (2017). Report on the Measurement of Fresh State Properties and Fiber Dispersion of Fiber-Reinforced Concrete. Fermington Hills: American Concrete Institute.ACI Committee 544.3R. (2008). Guide for Specifying, Proportioning, and Production of Fiber-Reinforced Concrete. Fermington Hills: American Concrete Institute, 1–16.ACI Committee 544.4R. (2018). Guide to Design with Fiber-Reinforced Concrete. In Fermington Hills: American Concrete Institute.ACI Committee 544.5R. (2010). Report on the Physical Properties and Durability of Fiber-Reinforced Concrete. In Fermington Hills: American Concrete Institute.ACI Committee 544.8R. (2016). Report on Indirect Method to Obtain Stress Strain Response of Fiber- Reinforced COncrete (FRC). Fermington Hills: American Concrete Institute.ASTM A820/A820M. (2011). Standard Specification for Steel Fibers for Fiber-Reinforced Concrete. American Society for Testing and Material., October, 1–4.ASTM C1116/C1116M. (2010). Standard Specification for Fiber-Reinforced Concrete. American Society for Testing and Material., Reapproved 2015, 1–7.ASTM C1399/C1399M. (2010). 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Construction and Building Materials, 21, 1250–1253.EstudiantesPúblico generalLICENSElicense.txtlicense.txttext/plain; charset=utf-85879https://repositorio.unal.edu.co/bitstream/unal/84356/1/license.txteb34b1cf90b7e1103fc9dfd26be24b4aMD51ORIGINAL1130601756.2023.pdf1130601756.2023.pdfTesis de Maestría en Ingeniería - Estructurasapplication/pdf6264950https://repositorio.unal.edu.co/bitstream/unal/84356/2/1130601756.2023.pdfa6ebf4d660ba1f22f7d4e160c6a02cb0MD52THUMBNAIL1130601756.2023.pdf.jpg1130601756.2023.pdf.jpgGenerated Thumbnailimage/jpeg5460https://repositorio.unal.edu.co/bitstream/unal/84356/3/1130601756.2023.pdf.jpgfd9893e5cd19fa549c074deb5313d5f9MD53unal/84356oai:repositorio.unal.edu.co:unal/843562023-08-15 23:04:05.708Repositorio Institucional Universidad Nacional de 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