The Research Of Pre-stressed Concrete Structure Durability And The Life Forecast Of Structure

Currently, looking from the research data at home and abroad, non-prestressed concrete structure durability research has made some progress. Such as ordinary concrete carbonation, freeze-thaw, chemical media, such as erosion and corrosion in steel research. In its mechanism, testing methods have a more unified point. Steel corrosion and structure of the relationship between bearing capacity have been more specific conclusions. Ways of its repair is useful and it has obtained good results.However, comparing the durability of prestressed concrete structures research and non-prestressed concrete structure durability study, exist a number of gaps. The research data of the durability of prestressed concrete structures can be found at home and abroad is little, and part of their conclusion is deduced from ordinary concrete findings and its own characteristics of prestressed concrete structures, and the pilot of a detailed report is less. The research mission of durability of prestressed concrete structures is also very difficult.Basing on the study and summarize the work of previous studies . Do some exploring to the reliability of prestressed concrete structures and prestressed concrete structure prediction aspects of life. Summed up by analyzing a variety of durability of prestressed concrete structures caused by the failure factors, pointing out that the structure of the various enhance the durability of prestressed concrete measures and focusing on analysis of cracks on the durability of prestressed establish cracks fuzzy characteristic function, combined with the reliability of the principle of prestressing give durability life prediction method.