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...
- 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
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Universidad Nacional de Colombia |
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|
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 |
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Repositorio Institucional Universidad Nacional de Colombia |
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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 |