Durability Evaluation of Concrete Bridges Considering Multi-scale High-Efficiency Numerical Models

In order to accurately evaluate the durability of bridges under the condition of uncertainty of concrete bridge durability evaluation and incomplete information, a comprehensive evaluation model of bridge durability based on multi-scale high-efficiency numerical model is introduced. The advantages of the model are explained in terms of indicator screening, grading, qualitative description, quantitative description, weight determination, evaluation process and method optimization, and through engineering examples, under the condition that the index information is incomplete and affected by uncertain factors, The model can diagnose the durability grade of the bridge to be evaluated more objectively and accurately, and provide a theoretical basis for the operation management and maintenance and maintenance decision of the bridge.