Research On The Durability Assessment Of Reinforced Concrete Bridges

Recently,the deterioration and damage of reinforced concrete bridges caused by durability inadequate were more and more serious and widespread,the normal use or security operations of the bridges were seriously affect,and the economic losses far beyond people's imagination.To ensure the security and lasting operation of the bridges, accurate and effective evaluation of durability is necessary.Timely detection of disease and appropriate repair measures could not only help to save the repairing costs significantly,but also help to avoid the heavy economic losses caused by structural damage and adverse social impact.In this paper,the concept and process of bridges assessment are expatiated.The research of bridges assessment at home or abroad is comprehensively summarized,and the popular methods of bridges assessment are also intensively analyzed.In this paper, analytic hierarchy process and fuzzy synthesis assessment method are used to the durability assessment of existing reinforced concrete bridges,and the new assessment model and index system for reinforced concrete continuous beam bridges are put forwarded.At last,the assessment model and index system for reinforced concrete bridges are verified by detection data.It is useful to draw experience from the textual on the durability assessment of existing reinforced concrete bridges.