Nondestructive detection experimental research on prestressed concrete beam

The prestressed concrete beams are increasingly widely used in bridges, large span building structures, so old prestressed structural safety of the performance testing is increasingly important. Because nondestructive detection testing do not damage the structure itself, it is one of the best detection methods. Through the five prestressed concrete beams static load test, measured the deflection and strain. The results show that, through the beam deflection, strain and other modal parameters of the test can effectively identify the health status of prestressed concrete beams for the bridge in the future provide a valuable reference for nondestructive testing.