Document: NUREG-0800
Document ID: 97042a9a-9f44-4236-9cce-9d73fdf3fef0
Document Type: srp
Title: STEEL CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340577.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.2
CFR Part: 
CFR Title: 

Content:
ge D + L + T + P + R T +R 4 P a a a s s s (c) Level C Service Limits These service limits include the loads subject to Level A service limits plus the additional loads resulting from natural phenomena for which safe shutdown of the plant is required. The loading combinations corresponding to these limits include the following: (1) LOCA in combination with safe shutdown earthquake L + L + T + R + P + El D+L+ a'+Ra 4-a E (2) Operating plant condition in combination with safe shutdown earthquake D-+ L + T + R + P + E' (3) Multiple SRV actuations in combination with small- break accident or intermediate-break accident and safe shutdown earthquake D + L + T +a +a +s T s E 3.8.2-10 Rev. 1 - July 1981 (d) Level D Service Limits These service limits include other applicable service limits and loadings of a local dynamic nature for which the containment function is required. The load combinations corresponding to these limits include the following: (1) LOCA in combination with safe shutdown earthquake and local dynamic loadings D+L+Ta Ra Pa Yr +Y +m E (2) Multiple SRV actuations in combination with small- break or intermediate-break accident, safe shutdown earthquake, and local dynamic loadings D +L +T + R + P + Y + Y +Y + P + T + R + El a a a r j m s s s (e) Post-Flooding Condition This includes the post-LOCA flooding of the containment in combination with operating basis earthquake D + L + F + E 4. Design and Analysis Procedures Design and analysis procedures for steel containments are covered in Article NE-3000 of Subsection NE of the Code, Section III, Division 1. The procedures given in the Code, as augmented by the applicable provisions of Regulatory Guide 1.57, constitute an acceptable basis for design and analysis. Moreover, for the specific areas of review described in subsection I.4 of this SRP section, the following criteria are acceptable: a. Treatment of nonaxisymmetric and localized loads For most containments, the nonaxisymmetric loads which apply are the