Study on pulling sensitivity character of CFRC and smart monitoring of beam specimens

The electrical resistivity variation of fiber with good electric conductivity has stable corresponding relationship with its stress field. Through the conformation of carbon fiber reinforced concrete (CFRC) smart layer with definite height in concrete structure and real-time monitoring of electrical resistivity variation, the structure real-time loading and the degree of damage could be forecasted. The intrinsic pulling sensitivity regularity of CFRC was studied, and the regularity was used in reinforced concrete beam specimens, which realized the online monitoring of real-time loading and deformation.