The Analysis And Evaluation Of Reinforcement Of Trussed Arch Bridge

In recent years, with the rapid development of bridge's construction, the using load of bridge is increasing, a large number of the existing bridge structure is being into the aging period, it is difficult to meet the growing transport needs. Therefore, the reinforcement of bridge is even more important, and has become one of the key bridge research, the choice of scientific and rational reinforcement to ensure effectiveness and quality of bridge strengthening is an important prerequisite.Bridge's maintenance, reinforcement, strengthening is a complex technical work, including the old bridge evaluation, reinforcement design, reinforcement construction and so on. Usually the old bridge reinforce strengthening bridge construction is more complex than new bridge construction, although small quantities, it involves many aspects, and related to many hidden projects, and often because bridge reinforcement is varying, and construction technology is special and complexity. Western Transportation Project Management Center detected a large number of bridge assessment and strengthening technology, made the series results and accumulated experience shows that:the old highway bridge evaluation and strengthening technology research and promotion is not only on the reinforcement market of the old highway bridge, improve the level of the old bridge's quality and quality is necessary, but also has considerable economic and social effects.The paper summed up the bridge a variety of strengthening methods and their respective characteristics at this stage with reference of the large number of bridge inspection and reinforcement of books and thesis. This article describes the " ER (releasing energy) method," the basic theory of arch bridges, and conducted a comprehensive review of the carrying capacity to Fa-de bridge in Liupanshui City and used two kinds of reinforcement, comparing the two methods and conclude from it, and the conclusions is to be analysis and summary and Evaluation. Summarizing and concluding the commonly used method of bridge reinforcement which provides the basis for reinforcement of bridge in the future.