Seismic retrofit of two-story earthen historic buildings using steel plates

Se presenta un documento con una evaluación experimental sobre el comportamiento sísmico de edificaciones en tierra de dos pisos con y sin refuerzo con placas de acero.

Autores:
Ruiz Valencia, Daniel Mauricio
Tipo de recurso:
Doctoral thesis
Fecha de publicación:
2023
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/67213
Acceso en línea:
http://hdl.handle.net/1992/67213
Palabra clave:
Rammed earth wall
Historic buildings
Cyclic test
Shear strength
Full-scale two-story earthen building test
Earthen buildings
Out-of-plane strength
Ingeniería
Rights
openAccess
License
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
id UNIANDES2_a3a072ffa03f05b1fe6725e1c0bc086c
oai_identifier_str oai:repositorio.uniandes.edu.co:1992/67213
network_acronym_str UNIANDES2
network_name_str Séneca: repositorio Uniandes
repository_id_str
dc.title.none.fl_str_mv Seismic retrofit of two-story earthen historic buildings using steel plates
dc.title.alternative.none.fl_str_mv Rehabilitación sísmica de edificaciones en tierra (patrimoniales) de dos niveles con platinas de acero
title Seismic retrofit of two-story earthen historic buildings using steel plates
spellingShingle Seismic retrofit of two-story earthen historic buildings using steel plates
Rammed earth wall
Historic buildings
Cyclic test
Shear strength
Full-scale two-story earthen building test
Earthen buildings
Out-of-plane strength
Ingeniería
title_short Seismic retrofit of two-story earthen historic buildings using steel plates
title_full Seismic retrofit of two-story earthen historic buildings using steel plates
title_fullStr Seismic retrofit of two-story earthen historic buildings using steel plates
title_full_unstemmed Seismic retrofit of two-story earthen historic buildings using steel plates
title_sort Seismic retrofit of two-story earthen historic buildings using steel plates
dc.creator.fl_str_mv Ruiz Valencia, Daniel Mauricio
dc.contributor.advisor.none.fl_str_mv Reyes Ortíz, Juan Carlos
dc.contributor.author.none.fl_str_mv Ruiz Valencia, Daniel Mauricio
dc.contributor.jury.none.fl_str_mv Jerez Barbosa, Sandra Rocío
Blondet Saavedra, Marcial
Tarque Ruiz, Sabino Nicola
Correal Daza, Juan Francisco Javier
dc.contributor.researchgroup.es_CO.fl_str_mv Centro de Investigación en Materiales y Obras Civiles (CIMOC)
dc.subject.keyword.none.fl_str_mv Rammed earth wall
Historic buildings
Cyclic test
Shear strength
Full-scale two-story earthen building test
Earthen buildings
Out-of-plane strength
topic Rammed earth wall
Historic buildings
Cyclic test
Shear strength
Full-scale two-story earthen building test
Earthen buildings
Out-of-plane strength
Ingeniería
dc.subject.themes.es_CO.fl_str_mv Ingeniería
description Se presenta un documento con una evaluación experimental sobre el comportamiento sísmico de edificaciones en tierra de dos pisos con y sin refuerzo con placas de acero.
publishDate 2023
dc.date.accessioned.none.fl_str_mv 2023-06-06T16:35:33Z
dc.date.available.none.fl_str_mv 2023-06-06T16:35:33Z
dc.date.issued.none.fl_str_mv 2023-06-02
dc.type.es_CO.fl_str_mv Trabajo de grado - Doctorado
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
dc.type.version.none.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.coar.none.fl_str_mv http://purl.org/coar/resource_type/c_db06
dc.type.content.es_CO.fl_str_mv Text
dc.type.redcol.none.fl_str_mv https://purl.org/redcol/resource_type/TD
format http://purl.org/coar/resource_type/c_db06
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/1992/67213
dc.identifier.doi.none.fl_str_mv 10.57784/1992/67213
dc.identifier.instname.es_CO.fl_str_mv instname:Universidad de los Andes
dc.identifier.reponame.es_CO.fl_str_mv reponame:Repositorio Institucional Séneca
dc.identifier.repourl.es_CO.fl_str_mv repourl:https://repositorio.uniandes.edu.co/
url http://hdl.handle.net/1992/67213
identifier_str_mv 10.57784/1992/67213
instname:Universidad de los Andes
reponame:Repositorio Institucional Séneca
repourl:https://repositorio.uniandes.edu.co/
dc.language.iso.es_CO.fl_str_mv eng
language eng
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spelling Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttps://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Reyes Ortíz, Juan Carlosvirtual::959-1Ruiz Valencia, Daniel Mauricio65f1eb3e-0f2b-4d33-a153-3700916e9aa5600Jerez Barbosa, Sandra RocíoBlondet Saavedra, MarcialTarque Ruiz, Sabino NicolaCorreal Daza, Juan Francisco JavierCentro de Investigación en Materiales y Obras Civiles (CIMOC)2023-06-06T16:35:33Z2023-06-06T16:35:33Z2023-06-02http://hdl.handle.net/1992/6721310.57784/1992/67213instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Se presenta un documento con una evaluación experimental sobre el comportamiento sísmico de edificaciones en tierra de dos pisos con y sin refuerzo con placas de acero.The Spaniard colonizers of Latin America built constructions using earthen materials, and consequently, adobe and rammed earth became part of the cultural heritage of northern South America. However, these heritage structures have been deteriorating due to the inherent structural vulnerability, mainly caused by earthquakes and moisture. Previous earthquakes have shown that unreinforced earthen buildings are susceptible to seismic damage, resulting in heritage, economic, and human losses. In recent years, research has focused on seismic retrofitting alternatives that included confining wooden/steel elements, steel cables, tie beams, steel tensioners, internal reinforcements, mesh reinforcements, polypropylene bands, etc. Confinement of earthen walls with steel strips was proposed recently and consisted of structural steel plates (101.6 mm width and 6.35 mm thickness) installed on the inner and outer faces of earthen walls (vertically and horizontally) forming a grid. The A36 steel plates are separated a distance between 1000 mm and 1500 mm and are joined with through bolts spaced every 500 mm. Despite the advances in the steel plate retrofitting technique for earthen buildings, design equations are not available, and studies on two-story full-scale specimens are limited, particularly in Colombia. This is an important issue because a large percentage of historic earthen buildings in Colombia have two stories. Therefore, the effectiveness of retrofitting techniques for these cases is not well understood. To address this gap in knowledge, this research project tested large-scale two-story walls or segments retrofitted with steel plates using pseudo-static and dynamic (shake table test) load protocols in one and two directions, respectively. Despite the high variability involved in the mechanical properties of earthen materials and the uncertainty in the interaction between the steel plates and the rammed earth, an analytical model, and an empirical design equation (validated with experimental tests) were proposed to predict the flexural out-of-plane strength of reinforced earthen elements. Additionally, a full-scale two-story rammed-earth wall with openings (0.65 m thickness, 6.20 m height, and 5.95 m length) was subjected to cyclic in-plane shear loads with two MTS actuators. These actuators applied loads until the reparable damage threshold was reached, which corresponds to the point at which the resistance shown in the hysteresis loops began to decrease. Later, the wall was reinforced with steel plates, and the same test protocol was repeated. The experimental results suggested that the in-plane stiffness was restored, and the lateral load capacity was increased by about 200 % on average. Furthermore, the unreinforced wall had a drift capacity of 0.5 %, while the reinforced wall reached a maximum drift of 1.8 %. Finally, two 1:2 scale rammed earth walls (unreinforced and reinforced with steel strips) were tested on a bi-axial shaking table device (X and Y ground motions). Based on the experimental tests, the unreinforced wall presented irreparable damage and high residual drifts at acceleration levels corresponding to a return period of 475 years (PGAy=0.43g). In contrast, the reinforced wall had a better seismic performance with lower damage levels and was highly resilient, withstanding an earthquake greater than the one with a 2500 return period without collapsing (PGAy=0.76g). Therefore, the experimental research conducted suggests that the steel plates reinforcement technique improves the seismic performance of two-story heritage rammed-earth walls while reducing damage and protecting human lives. Confinement with steel plates also reduced early failures and permanent residual drifts, allowed a higher range of non-linear displacements, reduced cracks and damage, and improved out-of-plane stability.La construcción de los modelos experimentales y sus actividades conexas (materiales, prestación de servicios, instrumentación. etc.) así como el personal científico contratado fue financiado por MinCiencias, de conformidad con el contrato 510-2020. La investigación fue desarrollada por la Pontificia Universidad Javeriana y por la Universidad de los Andes quienes contribuyeron con recursos de laboratorio y tiempo de profesores e investigadores. La Vicerrectoría Académica de la Pontificia Universidad Javeriana patrocinó el proyecto mediante el contrato DJE-004-2020.Doctor en IngenieríaDoctoradoEstructuras y modelos estructuralesMateriales116 páginasapplication/pdfengUniversidad de los AndesDoctorado en IngenieríaFacultad de IngenieríaDepartamento de Ingeniería Civil y Ambientalhttps://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfSeismic retrofit of two-story earthen historic buildings using steel platesRehabilitación sísmica de edificaciones en tierra (patrimoniales) de dos niveles con platinas de aceroTrabajo de grado - Doctoradoinfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_db06Texthttps://purl.org/redcol/resource_type/TDRammed earth wallHistoric buildingsCyclic testShear strengthFull-scale two-story earthen building testEarthen buildingsOut-of-plane strengthIngenieríaAcero E. (2012). Aproximación al comportamiento estructural de edificaciones en tierra de la arquitectura colonial. Consideraciones para el inventario de bienes del Ministerio de Cultura y la norma de sismo resistencia colombiana. Master's thesis, Universidad Nacional De Colombia.Albrecht P., Hall T. (2003). Atmospheric Corrosion Resistance of Structural Steels. Journal of Materials in Civil Engineering. 15 Issue 1 Feb. https://doi.org/10.1061/(ASCE)0899-1561(2003)15:1(2)AIS-Asociación Colombiana de Ingeniería Sísmica. (2004). Manual para la rehabilitación de viviendas construidas en adobe y tapia pisada [Manual for the rehabilitation of adobe and rammed-earth buildings].AIS-Asociación Colombiana de Ingeniería Sísmica. Reglamento colombiano de construcción sismo resistente NSR-10 [Colombian earthquake resistant construction regulation NSR-10]. 2010.AIS-Asociación Colombiana de Ingeniería Sísmica. (2017). 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