Behavior of an Operating Floor Subjected to Heavy Load Drops

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by Howard A. Levin, Tera Corp, Bethesda, MD, USA,
Wayne D. Goodyear, Tera Corp, Bethesda, MD, USA,
William J. Hall, Tera Corp, Bethesda, MD, USA,
Subhash C. Chugh, Tera Corp, Bethesda, MD, USA,
Thomas J. Tracy, Tera Corp, Bethesda, MD, USA,

Document Type: Proceeding Paper

Part of: Structural Engineering in Nuclear Facilities:

Abstract: A structural evaluation of the behavior of a Boiling Water Reactor operating floor subjected to postulated heavy load impact is presented relative to the evaluation of nuclear industry requirements for addressing the safe handling of heavy loads. A methodology for evaluation of important modes of structural response is presented along with a specification of performance limits that are consistent with desired functional requirements of the operating floor system. Options for improving undesirable behavior are discussed based upon an understanding of the physical phenomena involved, ultimately factoring this into a modification program. Reference is made to recent test experience that is applicable to the improvement of structural performance in modes of high shear ductility. Other relevant information is referenced that is applicable to the overall structural evaluation of nuclear power plant heavy load handling operations.

Subject Headings: Impact loads | Load tests | Structural safety | Floors | Power plants | Structural behavior | Nuclear reactors | Nuclear safety |

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