Optimization of prestressed concrete bridge decks

Samartín, Avelino and Utrilla Arroyo, M.A. (1991). Optimization of prestressed concrete bridge decks. "Computers & Structures", v. 41 (n. 3); pp. 553-559. ISSN 0045-7949. https://doi.org/10.1016/0045-7949(91)90149-G.

Description

Title: Optimization of prestressed concrete bridge decks
Author/s:
  • Samartín, Avelino
  • Utrilla Arroyo, M.A.
Item Type: Article
Título de Revista/Publicación: Computers & Structures
Date: 1991
ISSN: 0045-7949
Volume: 41
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this paper a summary of the methods presently used for optimization of prestressed concrete bridge decks is given. By means of linear optimization the sizes of the prestressing cables with a given fixed geometry are obtained. This simple procedure of linear optimization is also used to obtain the ‘best’ cable profile, by combining a series of feasible cable profiles. The results are compared with the ones obtained by other researchers. A step ahead in the field of optimization of prestressed bridge decks is the simultaneous search of the geometry and size of the prestressing cables. A non-linear programming for optimization is used, namely, ‘the steepest gradient method’. The results obtained are compared with the ones computed previously by means of linear programming techniques. Finally, the general problem of structural optimization is considered. This problem consists in finding the sizes and geometries of the prestressing cables as well as the longitudinal variation of the concrete section.

More information

Item ID: 32873
DC Identifier: http://oa.upm.es/32873/
OAI Identifier: oai:oa.upm.es:32873
DOI: 10.1016/0045-7949(91)90149-G
Official URL: http://www.sciencedirect.com/science/article/pii/004579499190149G
Deposited by: Biblioteca ETSI Caminos
Deposited on: 25 Nov 2014 08:15
Last Modified: 13 Apr 2015 15:23
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