Strength monitoring of a prestressed concrete containment with grouted tendons

摘要

Existing containments are all required to be checked for their strength periodically through inservice inspection programs. In China, all the containment prestress tendons are protected by cement grouting, except the sampling tendons for testing. To improve the methodology and accuracy of the present inservice inspections for grouted tendon containments, a new scheme of containment strength verification is proposed. It applies to all prestressed contain- ments, and it can be used as a continuous monitoring tool.