Document: NUREG-0800
Document ID: 4d089e13-715b-4211-8ed5-d715cdd1923e
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A377.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
2012 The review evaluates the information pertaining to design codes, standards, specifications, and Regulatory Guides (RGs), as well as industry standards, that is applied in the design, fabrication, construction, testing, and surveillance of the 3.8.3-8 Draft Revision 4 - December 2012 containment structures. The specific editions, dates, or addenda identified for each document are also reviewed. 3. Loads and Loading Combinations The review evaluates the information pertaining to the applicable design loads and associated load combinations. The loads normally applicable to containment internal structures include the following: A. Loads encountered during construction of containment internal structures, including dead loads, live loads, prestress loads, temperature, wind, earth pressure, snow, rain, and ice, and construction loads that may be applicable, such as material loads, personnel and equipment loads, horizontal and vertical construction loads, loads that are induced by the proposed construction sequence and by the differential settlements of the soil under and to the sides of the containment building, erection and fitting forces, equipment reactions, and form pressure. B. Loads encountered during normal plant startup, operation, and shutdown, including dead loads, live loads, thermal loads from operating temperature, and hydrostatic loads such as those in refueling and pressure suppression pools. In addition, hydrodynamic loads resulting from actuation of safety relief valves (SRVs) and manifested as drag load, jet impingement, and/or pressure loads should be considered. The appendix to SRP Section 3.8.1 includes a further description of the loads associated with SRVs. C. Loads to be sustained during severe environmental conditions, including those induced by the operating-basis earthquake (OBE) specified for the plant site. Subsection II.3.A of this SRP defines the condition for which the OBE load is required for design of containment internal structures.