Document: NUREG-0800
Document ID: f48fc6fe-7c52-4612-b75c-034cedcfeb13
Document Type: srp
Title: STEEL CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070325.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.2
CFR Part: 
CFR Title: 

Content:
viewed to determine the expected behavior of the structure when subjected to the design loads. 2. Applicable Codes, Standards, and Specifications The information pertaining to design codes, standards, specifications, and regulatory guides, and other industry standards that are used in the design, fabrication, construction, testing, and inservice surveillance of the steel containment, is reviewed. The specific editions, dates, or addenda identified for each document are also reviewed. 3. Loads and Loading Combinations Information pertaining to the applicable design loads and various load combinations is reviewed with emphasis on the extent of compliance with Subsection NE of the Code, DRAFT Rev. 2 - April 1996 3.8.2-4 Section III, Division 1, and with Regulatory Guide 1.57 (Ref. 2). The loads normally 9 10 applicable to steel containments include the following: a. Those loads encountered during preoperational testing. b. Those loads encountered during normal plant startup, operation, and shutdown, including dead loads, live loads, thermal loads due to operating temperatures, and hydrostatic loads such as those present in pressure-suppression containments utilizing water. c. Those loads to be sustained during severe environmental conditions, including those induced by design wind (if not protected by a shield building) and the operating basis earthquake. d. Those loads to be sustained during extreme environmental conditions, including those induced by the design basis tornado (if not protected by a shield building) and the safe shutdown earthquake specified for the plant site. e. Those loads to be sustained during abnormal plant conditions, which include loss-of-coolant accidents (LOCAs). The main abnormal plant condition for containment design is the design basis LOCA. Also to be considered are other accidents involving various high-energy pipe ruptures. Loads induced on the containment by such accidents include elevated temperatures and pressures and possibly