A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Optimization of cable-stayed bridges with box-girder decks
Box-girder decks are very effective solutions for long span cable-stayed bridges, due to its high torsional stiffness and streamlined profile, which usually leads to a good aerodynamic behaviour. A study on the optimization of such structural system is presented in this paper. The deck is modelled through the assembly of planes of plate-membrane elements. A multicriteria approach is considered for the optimization itself, with constraints on maximum stresses, minimum stresses in stays and deflections under dead load condition. Two illustrative examples are shown.
Optimization of cable-stayed bridges with box-girder decks
Box-girder decks are very effective solutions for long span cable-stayed bridges, due to its high torsional stiffness and streamlined profile, which usually leads to a good aerodynamic behaviour. A study on the optimization of such structural system is presented in this paper. The deck is modelled through the assembly of planes of plate-membrane elements. A multicriteria approach is considered for the optimization itself, with constraints on maximum stresses, minimum stresses in stays and deflections under dead load condition. Two illustrative examples are shown.
Optimization of cable-stayed bridges with box-girder decks
Simoes, L.M.C. (author) / Negrao, J.H.J.O. (author)
1997
12 Seiten, 11 Quellen
Conference paper
English
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