Document: NUREG-0800
Document ID: 092ec60a-d82b-4bb7-94c9-a5392118833e
Document Type: srp
Title: CONCRETE CONTAINMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340575.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.1
CFR Part: 
CFR Title: 

Content:
f compliance with Article CC-3000 of the ASME Section III, Division 2, "Code for Concrete Reactor Vessels and Containments" (Ref. 1) (hereafter "the Code"). The loads normally appli- cable to concrete 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 temperature, and hydrostatic loads and hydrodynamic loads resulting from safety relief valve (SRV) actuation such as those present in pressure-suppression containments utilizing water. c. Those loads to be sustained during severe environmental conditions, including those induced by the design wind and the operating basis earthquake specified for the plant site. d. Those loads to be sustained 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 (LOCA). 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. 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