Discussion on the Cause of Disease and Reinforcement Technology of Long Span PC Continuous Rigid Frame Bridge

In recent years, Chinese highway construction not only promotes the growth of regional economy, but also provides great convenience for people's travel. However, the highway construction period is long and involves many links, which has certain complexity. Based on this, in this paper combined with a specifi c project, this paper studies and analyzes the causes of disease and reinforcement technology of long-span PC continuous rigid frame bridge, for reference.