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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 28
COMPUTATIONAL STRUCTURAL ENGINEERING FOR PRACTICE
Edited by: M. Papadrakakis and B.H.V. Topping
Paper II.3

Automatic Design of Prestressed Bridge Decks

A. Samartin and M.A. Utrilla

Mecanica de los Medios Continuos, Teoria de Estructuras, Ciudad Universitaria, Madrid, Spain

Full Bibliographic Reference for this paper
A. Samartin, M.A. Utrilla, "Automatic Design of Prestressed Bridge Decks", in M. Papadrakakis, B.H.V. Topping, (Editors), "Computational Structural Engineering for Practice", Civil-Comp Press, Edinburgh, UK, pp 47-60, 1994. doi:10.4203/ccp.28.2.3
Abstract
In this paper a method for automatic design of the prestress in continuous bridge decks is presented. In a first step of the procedure the optimal prestressed force for a completely geometrically defined and feasible prestress layout is obtained by means of linear programming techniques. Further on, in a second step the prestress geometry and minimum force are automatically found by step descent optimization techniques. Finally this methodology is applied to two span continuous bridge decks and from the obtained results some preliminary design rules can be drawn.

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