Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading

This paper presents results from blast tests conducted on four 50 MPa concrete slabs with reinforcement ratios of 0,175% and 0,37%. Two of the slabs were retrofitted with 50 mm thick foam in order to investigate the potential of using the foam as a strengthening option. The slabs were simply support...

Full description

Autores:
Mendonça, Fausto
Urgessa, Girum
Rocco, José
Tipo de recurso:
Article of journal
Fecha de publicación:
2018
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/67530
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/67530
http://bdigital.unal.edu.co/68559/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
Blast effect
retrofitting
concrete slabs
non-confined explosive
Efecto de explosión
protección
losas de concreto
explosivo no confinado
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
id UNACIONAL2_990d16ab0a53fe894a35318c6c5ce2f8
oai_identifier_str oai:repositorio.unal.edu.co:unal/67530
network_acronym_str UNACIONAL2
network_name_str Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
title Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
spellingShingle Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
62 Ingeniería y operaciones afines / Engineering
Blast effect
retrofitting
concrete slabs
non-confined explosive
Efecto de explosión
protección
losas de concreto
explosivo no confinado
title_short Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
title_full Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
title_fullStr Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
title_full_unstemmed Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
title_sort Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading
dc.creator.fl_str_mv Mendonça, Fausto
Urgessa, Girum
Rocco, José
dc.contributor.author.spa.fl_str_mv Mendonça, Fausto
Urgessa, Girum
Rocco, José
dc.subject.ddc.spa.fl_str_mv 62 Ingeniería y operaciones afines / Engineering
topic 62 Ingeniería y operaciones afines / Engineering
Blast effect
retrofitting
concrete slabs
non-confined explosive
Efecto de explosión
protección
losas de concreto
explosivo no confinado
dc.subject.proposal.spa.fl_str_mv Blast effect
retrofitting
concrete slabs
non-confined explosive
Efecto de explosión
protección
losas de concreto
explosivo no confinado
description This paper presents results from blast tests conducted on four 50 MPa concrete slabs with reinforcement ratios of 0,175% and 0,37%. Two of the slabs were retrofitted with 50 mm thick foam in order to investigate the potential of using the foam as a strengthening option. The slabs were simply supported on two sides. Non-confined PBX (Plastic bonded explosive) was molded with the form of a cylinder measuring 20 cm in height and 10,5 cm in diameter. The explosive was detonated at 2 m stand-off distance. The equivalent TNT mass of the explosive ranges from 2,58 to 2,72 kg for the four tests. Accelerometers, displacement and pressure gages were used to measure blast wave parameters and global response of the slabs. A high-speed digital camera in conjunction with a rugged notebook recorded images. Qualitative and quantitative results are included. Slabs retrofitted with foam showed a different pressure pattern as recorded by the sensors and resulted in higher displacement, acceleration and linear momentum.
publishDate 2018
dc.date.issued.spa.fl_str_mv 2018-05-01
dc.date.accessioned.spa.fl_str_mv 2019-07-03T04:28:21Z
dc.date.available.spa.fl_str_mv 2019-07-03T04:28:21Z
dc.type.spa.fl_str_mv Artículo de revista
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
dc.type.version.spa.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.coar.spa.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.coarversion.spa.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.content.spa.fl_str_mv Text
dc.type.redcol.spa.fl_str_mv http://purl.org/redcol/resource_type/ART
format http://purl.org/coar/resource_type/c_6501
status_str publishedVersion
dc.identifier.issn.spa.fl_str_mv ISSN: 2248-8723
dc.identifier.uri.none.fl_str_mv https://repositorio.unal.edu.co/handle/unal/67530
dc.identifier.eprints.spa.fl_str_mv http://bdigital.unal.edu.co/68559/
identifier_str_mv ISSN: 2248-8723
url https://repositorio.unal.edu.co/handle/unal/67530
http://bdigital.unal.edu.co/68559/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv https://revistas.unal.edu.co/index.php/ingeinv/article/view/65305
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e Investigación
Ingeniería e Investigación
dc.relation.references.spa.fl_str_mv Mendonça, Fausto and Urgessa, Girum and Rocco, José (2018) Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading. Ingeniería e Investigación, 38 (2). pp. 27-33. ISSN 2248-8723
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería
institution Universidad Nacional de Colombia
bitstream.url.fl_str_mv https://repositorio.unal.edu.co/bitstream/unal/67530/1/65305-393143-1-PB.pdf
https://repositorio.unal.edu.co/bitstream/unal/67530/2/65305-393143-1-PB.pdf.jpg
bitstream.checksum.fl_str_mv 735c1fe2608a0d3ac5241196771a55dc
cb20f312108a5953850ddf305cf07076
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
repository.name.fl_str_mv Repositorio Institucional Universidad Nacional de Colombia
repository.mail.fl_str_mv repositorio_nal@unal.edu.co
_version_ 1814089739173625856
spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Mendonça, Faustob4e5d19b-ff4c-4272-ad9b-3256a9e1e58f300Urgessa, Girum7de650d4-5295-4080-810e-559e262a517d300Rocco, Josébac8e08c-0959-4d2b-a3fb-c678864201cb3002019-07-03T04:28:21Z2019-07-03T04:28:21Z2018-05-01ISSN: 2248-8723https://repositorio.unal.edu.co/handle/unal/67530http://bdigital.unal.edu.co/68559/This paper presents results from blast tests conducted on four 50 MPa concrete slabs with reinforcement ratios of 0,175% and 0,37%. Two of the slabs were retrofitted with 50 mm thick foam in order to investigate the potential of using the foam as a strengthening option. The slabs were simply supported on two sides. Non-confined PBX (Plastic bonded explosive) was molded with the form of a cylinder measuring 20 cm in height and 10,5 cm in diameter. The explosive was detonated at 2 m stand-off distance. The equivalent TNT mass of the explosive ranges from 2,58 to 2,72 kg for the four tests. Accelerometers, displacement and pressure gages were used to measure blast wave parameters and global response of the slabs. A high-speed digital camera in conjunction with a rugged notebook recorded images. Qualitative and quantitative results are included. Slabs retrofitted with foam showed a different pressure pattern as recorded by the sensors and resulted in higher displacement, acceleration and linear momentum.Este documento presenta los resultados de una prueba experimental de efecto de explosiones y de instrumentación desde el subconjunto de cuatro losas de concreto de 50 MPa con ratios de refuerzo del 0,175% y 0,37%. Dos de las losas han sido protegidas con una espuma de poli estireno expandido con 50 mm de espesor para poder comprobar la capacidad que tiene la espuma de modificar la respuesta a la explosión. Las losas se apoyaron en dos lados. El explosivo plástico PBX (por las siglas en inglés de plastic bonded explosive) no confinado fue moldeado en forma de cilindro teniendo 20 cm de alto y 10,5 cm de diámetro. El explosivo fue detonado a 2 metros de distancia. La masa de equivalente TNT de los explosivos varía entre 2,58-2,72 kg. Acelerómetros, medidores de desplazamientos y sensores de presión fueran utilizados para medir los parámetros de la onda de choque y la respuesta global de las losas. Una cámara digital de alta velocidad conectada a una computadora portátil robusta grabó las imágenes. Se incluyen datos resultados cualitativos y cuantitativos. Las losas con protección de espuma variaron el patrón de presión registrados por los sensores y resultó en un mayor desplazamiento, aceleración y el momento lineal.application/pdfspaUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ingenieríahttps://revistas.unal.edu.co/index.php/ingeinv/article/view/65305Universidad Nacional de Colombia Revistas electrónicas UN Ingeniería e InvestigaciónIngeniería e InvestigaciónMendonça, Fausto and Urgessa, Girum and Rocco, José (2018) Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading. Ingeniería e Investigación, 38 (2). pp. 27-33. ISSN 2248-872362 Ingeniería y operaciones afines / EngineeringBlast effectretrofittingconcrete slabsnon-confined explosiveEfecto de explosiónprotecciónlosas de concretoexplosivo no confinadoExperimental investigation of 50 MPa reinforced concrete slabs subjected to blast loadingArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTORIGINAL65305-393143-1-PB.pdfapplication/pdf2118604https://repositorio.unal.edu.co/bitstream/unal/67530/1/65305-393143-1-PB.pdf735c1fe2608a0d3ac5241196771a55dcMD51THUMBNAIL65305-393143-1-PB.pdf.jpg65305-393143-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8696https://repositorio.unal.edu.co/bitstream/unal/67530/2/65305-393143-1-PB.pdf.jpgcb20f312108a5953850ddf305cf07076MD52unal/67530oai:repositorio.unal.edu.co:unal/675302023-05-30 23:03:01.163Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co