Abstract
Based on the actual engineering monitoring data, the concrete creep change during the operation period of the prestressed hydraulic tunnel is analyzed, and it’s calculated theoretically by using the existing concrete creep prediction model which has a wide range of application. The results of the study indicate that, within six months after the project enters the operating period, the strain changes generated by the concrete strain meter tend to be stable, and the strain increment at this time can be considered as the creep strain of the concrete. The calculation results of the CEB-FIP model can better match the measured results of the actual hydraulic tunnel structure. Therefore, in the absence of actual engineering data, the CEB-FIP model is recommended to analyze the creep effect of the hydraulic tunnel structure.
