Document: NUREG-0800
Document ID: b172ba61-9651-45f8-ac8e-6d6e00e27060
Document Type: srp
Title: STEEL CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1006/ML100630179.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.2
CFR Part: 
CFR Title: 

Content:
sider nonlinear material and geometric behavior and address the effect of initial geometric imperfections either explicitly (direct modeling) or implicitly (through the use of appropriate imperfection sensitivity knockdown factors). If appropriately demonstrated, residual postbuckling strength can be considered in determining the pressure capacity. The details of the analysis and the results should be submitted in a report form with the following identifiable information: i. Original design pressure, P, as defined in ASME Code, Section III, Division 1, Subsection NE, Subarticle NE-3112.1 ii. Calculated static pressure capacity iii. Equivalent static pressure response calculated from dynamic pressure iv. Associated failure mode v. Criteria governing the original design and the criteria used to establish failure vi. Analysis details and general results vii. Appropriate engineering drawings adequate to allow verification of modeling and evaluation of analyses employed for the containment structure E. Structural Audit Structural audits are conducted as described in SRP Section 3.8.4, Appendix B. F. Design Report The design report is considered acceptable when it satisfies the guidelines provided in SRP Section 3.8.4, Appendix C. 5. Structural Acceptance Criteria. Stresses at various locations of the shell of the containment for various design loads are determined by analysis. Total stresses for the combination of loads delineated in Subsection II.3 of this SRP section are acceptable if found to be within the limits defined by ASME Code, Section III, Division 1, Subsection 3.8.2-19 Revision 3 - May 2010 NE, Subarticles NE-3221.1, NE-3221.2, NE-3221.3, and NE-3221.4 for Service Levels A, B, C, and D, respectively. For the postflooding load combination (Subsection II.3.b(iii)(5)), Service Level C limits apply to primary stress, and Service Level B limits apply to primary plus secondary stress. Evaluation of primary plus secondary plus peak stress is not required. If