Research On Damage Evaluation And Strengthening Method Of The Long-span PC Continuous Bridges

A great number of bridge deteriorations are not only harmful to transportation,but also have bad influence on the development of human society. Research on damage evaluation and strengthening method of bridges are significant. The large-span PC continuous bridge is one of the popular types of modern bridges. In recent years,there are a lot of examples of this kind of bridge deteriorations,which made the research on those very important. In this paper,a two-dimensional analysis of the Tanjialiangzi Bridge was first performed;then a segment of the bridge was modeled and a three-dimensional analysis of it were carried out by employing the FEM software of ANSYS;after a careful analysis of the result of the calculations,the causes of the diagonal cracking in the web of the beam were given out;and also,in the last part,common steps of damage evaluation of the long-span PC continuous bridges through FEM software were summarized.