Two near-optimal layouts for trusslike bridge structures bearing uniform weight between supports

Cervera Bravo, Jaime; Vázquez Espí, Carlos y Vázquez Espí, Mariano (2014). Two near-optimal layouts for trusslike bridge structures bearing uniform weight between supports. "Journal of Structural Engineering", v. 140 (n. 4); pp. 1-8. ISSN 0733-9445. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000905.

Descripción

Título: Two near-optimal layouts for trusslike bridge structures bearing uniform weight between supports
Autor/es:
  • Cervera Bravo, Jaime
  • Vázquez Espí, Carlos
  • Vázquez Espí, Mariano
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Structural Engineering
Fecha: Abril 2014
Volumen: 140
Materias:
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Matemática Aplicada a la Ingeniería Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Although the primary objective on designing a structure is to support the external loads, the achievement of an optimal layout that reduces all costs associated with the structure is an aspect of increasing interest. The problem of finding the optimal layout for bridgelike structures subjected to a uniform load is considered. The problem is formulated following a theory on economy of frame structures, using the stress volume as the objective function and including the selection of appropriate values for statically indeterminate reactions. It is solved in a function space of finite dimension instead of using a general variational approach, obtaining near-optimal solutions. The results obtained with this profitable strategy are very close to the best layouts known to date, with differences of less than 2% for the stress volume, but with a simpler layout that can be recognized in some real bridges. This strategy could be a guide to preliminary design of bridges subject to a wide class of costs.

Más información

ID de Registro: 40241
Identificador DC: http://oa.upm.es/40241/
Identificador OAI: oai:oa.upm.es:40241
Identificador DOI: 10.1061/(ASCE)ST.1943-541X.0000905
URL Oficial: http://ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0000905
Depositado por: Memoria Investigacion
Depositado el: 04 Oct 2016 07:49
Ultima Modificación: 04 Oct 2016 07:49
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