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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
ANS announces 2025 Presidential Citations
One of the privileges of being president of the American Nuclear Society is awarding Presidential Citations to individuals who have demonstrated outstanding effort in some manner for the benefit of ANS or the nuclear community at large. Citations are conferred twice each year, at the Annual and Winter Meetings.
ANS President Lisa Marshall has named this season’s recipients, who will receive recognition at the upcoming Annual Conference in Chicago during the Special Session on Tuesday, June 17.
Pierre Saunier (CEA), Franck Peysson, Denis Etienne (BOUYGUES Construction), Julien Niepceron (EDF)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 675-684
More stringent safety requirements for Civil Works of future nuclear buildings combined with severe design loads lead to continuously increase the steel bars demand in Reinforced Concrete (RC) structures. The related implementation issues during the detailed design and the construction create for the projects both delays and cost escalation.
As a consequence trend in nuclear civil engineering is to resort more often to Steel Concrete (SC) structures when large steel reinforcement ratios are anticipated from the preliminary design of a RC structures. These prefabricated modules (steel part) could also replace a large part of the embedment parts for moderate loads that reach the outstanding quantity of 100.000 plates for the recent Nuclear Power reactor projects and bring a solution for containment (liquid or gas).
One main advantage is also a gain on the construction schedule as the steel modules are prefabricated and in situ construction operations are limited to the connection of the steel modules and the infill concreting.
SC modular structures are entering in the frame of ongoing nuclear projects like ASTRID, the Generation IV Sodium cooled Fast Reactor industrial demonstrator under development by the CEA in France. The civil work design of ASTRID is based on Eurocodes and more specifically on AFCEN Rules for design and construction of PWR nuclear civil works (RCC-CW). Preliminary studies (design and construction methodology) have demonstrated the feasibility to realize in SC different structural parts. CEA and BOUYGUES Company are currently working to benchmark the pros and cons of the SC modules in ASTRID against a reinforced concrete structure, focusing on construction methods, and subsequently to define the cost and schedule impacts.