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Reliability Assessment of Indian Point Unit 3 Containment Structure Under Combined Loads

by H. Hwang, Brookhaven Natl Lab, Upton, NY, USA,
M. Shinozuka, Brookhaven Natl Lab, Upton, NY, USA,
J. Kawakami, Brookhaven Natl Lab, Upton, NY, USA,
M. Reich, Brookhaven Natl Lab, Upton, NY, USA,



Document Type: Proceeding Paper

Part of: Structural Engineering in Nuclear Facilities

Abstract:

In the current design criteria, the load combinations specified for design of concrete containment structures are in the deterministic format. However, by applying the probability-based reliability analysis method developed by BNL to the concrete containment structures designed according to the criteria, it is possible to evaluate the reliability levels implied in the current design criteria. For this purpose, the reliability analysis is applied to the Indian Point Unit No. 3 containment. The details of the containment structure such as the geometries and the rebar arrangements, etc. , are taken from the working drawings and the Final Safety Analysis Report. Three kinds of loads are considered in the reliability analysis. They are, dead load, accidental pressure due to a large LOCA, and earthquake ground acceleration. This paper presents the reliability analysis results of the Indian Point Unit 3 containment subjected to all combinations of loads.

Subject Headings: Structural reliability | Structural analysis | Load combinations | Concrete structures | Load factors | Dead loads | Structural design

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