Document: NUREG-0800
Document ID: 5887ec11-6ad2-46aa-be7f-d596fb3777b6
Document Type: srp
Title: CONCRETE CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070324.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.1
CFR Part: 
CFR Title: 

Content:
tained during extreme environmental conditions, including those induced by the design basis tornado 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 considered are other accidents involving various high-energy pipe ruptures. Loads induced on the containment by such accidents include elevated temperatures and pressures and possible localized loads such as jet impingement and associated missile impact. For BWR containments the LOCA-related or LOCA/SRV-related hydrodynamic loads in suppression pools manifested as jet loads and/or pressure loads should be considered. f. Those loads to be sustained, if applicable, after abnormal plant conditions, including flooding of the containment subsequent to a LOCA for fuel recovery. g. Pressure and dead loads during an accident that releases hydrogen generated from 100% fuel clad metal-water reaction and accompanied by either hydrogen burning or added pressure from postaccident inerting, and the loadings produced DRAFT Rev. 2 - April 1996 3.8.1-4 by the inadvertent full actuation of a postaccident inerting hydrogen control system, excluding seismic or design basis accident loadings.9 The various combinations of the above loads that are normally postulated and reviewed include the following: Testing loads; normal operating loads; normal operating loads with severe environmental loads; normal operating loads with extreme environmental loads; normal operating loads with abnormal loads; normal operating loads with severe environmental and abnormal loads; normal operating loads with extreme environmental and abnormal loads; and post-LOCA flooding loads with severe environmental loads, if applicable. The loads and load combinations described above are generally applicable to all containments. However, other site-related