Stress monitoring analysis of the prestressed concrete continuous rigid frame bridge

Base on construct monitoring of Zengjiang big bridge,important significance of stress monitoring to safely constructing prestressed concrete continuous rigid frame bridge was expounded.By measured stress data of key section,principal origin of vibrating wire stress testing error is analyzed,methods of reducing error are put forward.Measured stress is compared with theoretical stress that bridge structural analysis program Dr.Bridge is applied to calculate,it guides construction and guarantees the quality.