The main function of the prestressing system is to ensure the leak integrity of the containment by maintaining a compressive state of stress under the tensile forces which arise in a hypothesized loss of coolant accident. Reliability-based inspection of prestressed concrete containment structuresĪ study was undertaken to develop a reliability-based approach to the planning of inspection programs for prestressed concrete containment structures. The sensitivities of the Choleskey decomposition matrix and the natural vibration character are calculated by simplified procedures. The limit state surface of the prestressed concrete containment is constructed directly incorporating the prestress. Limit state probabilities for given parameters are calculated using the procedure developed at BNL, while that with consideration of parameter uncertainties are calculated by a fast integration for time variant structural reliability. The reliability analysis of prestressed concrete containment structures subjected to combinations of static and dynamic loads with consideration of uncertainties of structural and load parameters is presented. International Nuclear Information System (INIS) Reliability analysis of prestressed concrete containment structures
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