Analysis And Detection Reinforcement Measures And Bridge Substructure Diseases

Along with the rapid development of transportation industry in China, a lot of infrastructure requirements also make the highway construction is booming; Built a large number of Bridges in the past decades, China has become the power of the bridge in the world. Because has always been at the development stage, at the beginning of the construction of Bridges, while considering the technical requirements and advanced materials, still difficult to get rid of the historical limitations; And under the control of the economy at the time, and now a large car, heavy truck, improving little by little every day, overload and overrun phenomenon more and more serious, to operate for a period of time the bridge began to appear defect and disease, serious damage for bridge health and traffic safety, if pushed to the reconstruction is a waste of money or time consuming, so the detection of bridge maintenance to become the current of the hot research fields gradually.Now the bridge inspection has also been reinforced emphasis on the transport sector, but due to this technology in the immature stage, testing work also more limited, can not bridge a full range of inspection, which makes bridge defects can not be completely identified, there are also security risks. For example, now most of the girder bridge mostly focus on the detection of reinforcing the superstructure, substructure detect reinforcement work is still lacking; plus the difference between the two parts of the environment but related stress appears offset displacement after the impact there difference but mutual constraints, so the bridge detection beam reinforcement, the substructure should also consider the full analysis of the disease type and extent of its influence, the use of reinforcement for the effective maintenance methods.This article focuses on the type of girder Bridge of disease because they produce and the overall impact of the bridge on the analysis, by mechanics software MIDAS for one specific analysis and detection now has reinforced elaborate methods and specific operating procedures, for shortcomings exist to improve, explore the girder bridge of the new detection method reinforcement, more conducive to bridge health and prolong life.