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The more » results of the research have determined that the N690-18 specification is a significant enhancement from the N690-1994 (R2004) edition. The research developed the technical basis for acceptance of the new specification and also identified areas where additional staff guidance is needed for the design of safety-related steel structures at nuclear power plants.
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The technical review of N690-18 was performed in order to assess the adequacy of the provisions for use by the NRC in updating its regulatory guidance for nuclear power plants.
#Aisc 14th edition table 4 6 pipe axial compression code
code or standard that governs its design. The N690-18 specification also contains a new Appendix N9 that addresses the design of safety-related steel-plate composite (SC) walls which are a relatively new type of structural member for which previously there has not been any U.S. The N690-18 Specification reflects advances and improvements in steel design gained from experience, analytical studies, and experimental data over the years. Currently the NRC endorses the use of an earlier version: N690-1994 (R2004), and thus, a technical review of the updated N690 Specification, which contains significant changes, is warranted. Nuclear Regulatory Commission for potential endorsement of N690-18 for use in the design of nuclear power plants. This report describes the assessment of the recently published ANSI/AISC N690-18, Specification for Safety-Related Steel Structures for Nuclear Facilities.