The effect of deck girder slenderness on the lateral buckling load of arched steel bridges is investigated. Models in the literature consider the deck infinitely stiff out-of-plane: this reductive hypothesis is removed in this article and a formulation describing the lateral behaviour of the slender tied arch in terms of two geometric parameters is proposed. A comparison with the relevant Eurocode 3 instructions for preliminary stability checks reveals that a correction function to include deck slenderness is necessary. Some modifications to code formulations are proposed.
Lateral elastic stability of slender arches for bridges including deck slenderness
CAPSONI, ANTONIO;CORRADI DELL'ACQUA, LEONE MARIA;
2009-01-01
Abstract
The effect of deck girder slenderness on the lateral buckling load of arched steel bridges is investigated. Models in the literature consider the deck infinitely stiff out-of-plane: this reductive hypothesis is removed in this article and a formulation describing the lateral behaviour of the slender tied arch in terms of two geometric parameters is proposed. A comparison with the relevant Eurocode 3 instructions for preliminary stability checks reveals that a correction function to include deck slenderness is necessary. Some modifications to code formulations are proposed.File in questo prodotto:
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