Abstract
The strength of each layer of composite bridge deck under different load conditions is analyzed and studied by Tsai-Wu tensor theory. The results indicate that, the characteristic strength values calculated in the predetermined reinforcement fabric are significantly smaller than those in the E-glass fiber layer, and the damage will first occur in E-glass fiber layer. Under various operating conditions, the characteristic strength values in each layer of FRP bridge panel are smaller than 1, and have a certain safety factor. The weak positions of each layer are related to the configuration of bridge panel. Tsai-Wu tensor theory can accurately evaluate the status of each layer, and supervise the design work of GFRP bridge panel.
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