Abstract
This paper presents the design and analysis of GFRP (glass fiber reinforced polymer) decks for the girder bridges. In the material design, Eglass fibers with vinyl ester resin are assumed for the materials. Five GFRP plates having different stacking patterns and material compositions are designed and pultruded. Total 100 specimens are tested for tension, compression, shear, and flexure. Based on the material properties determined in the material test, structural shape of deck profile having multi-cellular tube section is proposed. The proposed profile is finally optimized by using a genetic algorithm-based optimization procedure. Based on the results of this study, viable GFRP patterns and cross-sectional dimensions of deck profile with deck-to-girder connections suitable for the deck renewal projects are proposed. Using the proposed cross-sectional shape and GFRP patterns, a design of GFRP deck for the typical steel I-girder bridge is also presented in this paper.
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