Application of Orthotropic Thin Plate Theory to Filled Steel Grid Decks for Bridges

Although AASHTO LRFD specifications provide moment capacity equations as an approximate design method and recommend an orthotropic plate model as the refined method for the analysis of filled grid decks, no guidelines are provided for the determination of the flexural rigidities associated with the...

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Bibliographic Details
Published in:Journal of bridge engineering 2007-11, Vol.12 (6), p.807-810
Main Authors: Huang, Haoxiong, Kaliakin, Victor N, Chajes, Michael J, Mertz, Dennis R, Shenton, Harry W
Format: Article
Language:English
Subjects:
TECHNICAL NOTES
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Summary:Although AASHTO LRFD specifications provide moment capacity equations as an approximate design method and recommend an orthotropic plate model as the refined method for the analysis of filled grid decks, no guidelines are provided for the determination of the flexural rigidities associated with the plate analysis. This technical note briefly reviews orthotropic thin plate theory, discusses the determination of the flexural rigidities using Huber’s assumption, and applies the theory to concrete-filled steel grid decks. The accuracy of the orthotropic plate analysis is assessed by comparing it to results of an earlier finite-element analysis.
ISSN:1084-0702
1943-5592
DOI:10.1061/(ASCE)1084-0702(2007)12:6(807)