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Abstract:A finite element method is presented for the analysis of bridge decks treated as shell-type structures. The method can be used successfully for the analysis of a wide variety of highway bridges such as slab-type bridges, beam slab bridges, box girder bridges, and curved bridges. The deck is discretized as an assemblage of flat triangular elements. Four different elements are available for use in the analysis. Two of these are in the forms of a new, refined triangular element and a new, refined nonplanar quadrilateral element, and the other two elements are a triangular element and a quadrilateral element with less refinement of stiffness evaluation. The refined elements are suitable for use in coarse meshes to analyze decks with simple geometry while the other two elements may be used in fine meshes for the analysis of decks with complex geometry.
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