Optimum design of composite twin-girder road bridges
ABSTRACT: Composite structures have not been able to compete in Spain with more conventional prestressed concrete bridges in the lower range of medium spans (30 - 90 m.). In this context, twin-girder sections are revealed as a more competent typology because of its sobriety, ease of construction and...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/17084 |
| Acceso en línea: | http://hdl.handle.net/10902/17084 |
| Access Level: | acceso abierto |
| Palabra clave: | Twin-girder Optimisation Deck Grillage Bridge Puente Bijácena Optimización Tablero Emparrillado |
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Optimum design of composite twin-girder road bridgesBaraibar Díez, José ManuelBaraibar Diez, Elisa Pilar|||0000-0003-4677-3255Twin-girderOptimisationDeckGrillageBridgePuenteBijácenaOptimizaciónTableroEmparrilladoABSTRACT: Composite structures have not been able to compete in Spain with more conventional prestressed concrete bridges in the lower range of medium spans (30 - 90 m.). In this context, twin-girder sections are revealed as a more competent typology because of its sobriety, ease of construction and good structural performance. At present the optimal character of the designs in structural projects is rarely challenged. The present study undertakes an in-depth analysis of the twin-girder section, involving a complete optimisation for the deck. To this end a specific 2D grillage model has been developed, integrating the composite and evolutive character of twin-girder decks, as well as the instability phenomena inherent to thin-walled structures. Several conclusions are drawn after a parametric calculation using this model, regarding the optimum dimensions of all the variables that define the twin-girder section. These conclusions crystallise in a series of formulas that can be used as a design guide.RESUMEN: Las estructuras mixtas no han sido capaces de competir en España con las obras de hormigón pretensado en el rango inferior de las luces medias (30 - 90 m). En este contexto, la sección bijácena se erige como tipología más competente por su sobriedad, facilidad constructiva y buen rendimiento estructural. En la actualidad raramente se cuestiona el carácter óptimo de los diseños propuestos en los proyectos de estructuras. En el presente estudio se desarrolla un análisis profundo de la tipología bijácena, planteándose la optimización completa de un tablero definido con todas sus variables de forma estricta. Para ello se desarrolla un modelo específico de emparrillado plano, que integra el carácter mixto y evolutivo de los tableros con sección bijácena, así como los fenómenos de inestabilidad propios de las estructuras confeccionadas con chapas delgadas. Tras efectuar un cálculo paramétrico en abanico y empleando un método de optimización combinatoria se extraen diversas conclusiones relativas a las dimensiones óptimas de las variables que definen la tipología bijácena. Estas conclusiones se cristalizan con una serie de fórmulas de proyecto que pueden servir de guía de diseño a la hora de plantear la idoneidad de esta tipología.Universitat Politècnica de CatalunyaUniversidad de Cantabria20192019-09-18journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/17084Rev. int. métodos numér. cálc. diseño ing. (2019). Vol. 35, (3), 41reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/170842026-06-02T12:39:31Z |
| dc.title.none.fl_str_mv |
Optimum design of composite twin-girder road bridges |
| title |
Optimum design of composite twin-girder road bridges |
| spellingShingle |
Optimum design of composite twin-girder road bridges Baraibar Díez, José Manuel Twin-girder Optimisation Deck Grillage Bridge Puente Bijácena Optimización Tablero Emparrillado |
| title_short |
Optimum design of composite twin-girder road bridges |
| title_full |
Optimum design of composite twin-girder road bridges |
| title_fullStr |
Optimum design of composite twin-girder road bridges |
| title_full_unstemmed |
Optimum design of composite twin-girder road bridges |
| title_sort |
Optimum design of composite twin-girder road bridges |
| dc.creator.none.fl_str_mv |
Baraibar Díez, José Manuel Baraibar Diez, Elisa Pilar|||0000-0003-4677-3255 |
| author |
Baraibar Díez, José Manuel |
| author_facet |
Baraibar Díez, José Manuel Baraibar Diez, Elisa Pilar|||0000-0003-4677-3255 |
| author_role |
author |
| author2 |
Baraibar Diez, Elisa Pilar|||0000-0003-4677-3255 |
| author2_role |
author |
| dc.contributor.none.fl_str_mv |
Universidad de Cantabria |
| dc.subject.none.fl_str_mv |
Twin-girder Optimisation Deck Grillage Bridge Puente Bijácena Optimización Tablero Emparrillado |
| topic |
Twin-girder Optimisation Deck Grillage Bridge Puente Bijácena Optimización Tablero Emparrillado |
| description |
ABSTRACT: Composite structures have not been able to compete in Spain with more conventional prestressed concrete bridges in the lower range of medium spans (30 - 90 m.). In this context, twin-girder sections are revealed as a more competent typology because of its sobriety, ease of construction and good structural performance. At present the optimal character of the designs in structural projects is rarely challenged. The present study undertakes an in-depth analysis of the twin-girder section, involving a complete optimisation for the deck. To this end a specific 2D grillage model has been developed, integrating the composite and evolutive character of twin-girder decks, as well as the instability phenomena inherent to thin-walled structures. Several conclusions are drawn after a parametric calculation using this model, regarding the optimum dimensions of all the variables that define the twin-girder section. These conclusions crystallise in a series of formulas that can be used as a design guide. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2019-09-18 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 NA http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10902/17084 |
| url |
http://hdl.handle.net/10902/17084 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Universitat Politècnica de Catalunya |
| publisher.none.fl_str_mv |
Universitat Politècnica de Catalunya |
| dc.source.none.fl_str_mv |
Rev. int. métodos numér. cálc. diseño ing. (2019). Vol. 35, (3), 41 reponame:UCrea Repositorio Abierto de la Universidad de Cantabria instname:Universidad de Cantabria (UC) |
| instname_str |
Universidad de Cantabria (UC) |
| reponame_str |
UCrea Repositorio Abierto de la Universidad de Cantabria |
| collection |
UCrea Repositorio Abierto de la Universidad de Cantabria |
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| repository.mail.fl_str_mv |
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1869411525265981440 |
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15.300724 |