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The non-probabilistic reliability theory is introduced to assess bridges which are in active service. A model of simply supported girder bridge is built based on this theory. Theoretical method and failure point optimization method based on the finite element software are used respectively for computation prior to strengthen of the girder bridge model to validate the effectiveness of failure point optimization method. In the meantime, reliability evaluation is conducted. After being strengthened with carbon fiber cloth, the model is implemented with non-probabilistic reliability evaluation. Afterwards, the evaluation is further conducted under different conditions by means of altering the width and the layer of carbon fiber cloth respectively. And afterwards, an optimal carbon-fiber-reinforced plan is worked out. Keyword-non-probabilistic reliability; arch bridge; failure point optimization method; evaluation; strengthened by CFRP

Research on Carbon Fiber Reinforced Concrete Beam Bridge Based on Non- probability Theory