Evaluation of inservice inspections of greased prestressing tendons
Prestressed concrete containments in the United States using greased prestressing tendons are inspected periodically to ensure structural integrity and to identify and correct problem areas before they become critical. In the study, an analysis of the available utility surveillance data and an evaluation of the current and proposed guidelines were conducted. Comments from utility and industry personnel were factored into the analysis. The results indicated that the majority of the few incidences of problems or abnormalities that occurred were minor in nature and did not threaten the structural integrity of the containment. All of the available surveillance reports concluded that the respective containments were in good condition. However, the surveillance reports did reveal discrepancies between utilities in the interpretation of the results. Evaluation of the proposed guidelines also revealed areas that could be modified to provide improved results.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6810980
- Report Number(s):
- NUREG/CR-2719; ORNL/TM-8278; ON: DE82021832
- Country of Publication:
- United States
- Language:
- English
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