Document: NUREG-0800
Document ID: ab4f353d-c299-479d-ab25-834f97196988
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR CONCRETE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070326.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
safety be designed to withstand the effects of expected natural phenomena combined with those of normal and accident conditions without loss of capability to perform their safety function. SRP Section 3.8.3 provides detailed acceptance criteria and cites appropriate regulatory guidance for design methodology, materials testing, and construction techniques that is acceptable to the staff. GDC 2 requires that containment internal structures be designed to withstand the effects of natural phenomena combined with those of normal and accident conditions without loss of capability to perform their safety function. Load combinations and specifications cited in this SRP section provide acceptable engineering criteria to accomplish that function. Meeting this requirement provides assurance that the internal structures of the containment will be designed to withstand the effects associated with natural phenomena and will perform their intended safety function.131 4. Compliance with GDC 4 requires that structures important to safety be designed to accommodate the effects of, and to be compatible with, environmental conditions associated with normal operation, maintenance, testing, and postulated accidents (including LOCAs). These structures shall be appropriately protected against dynamic effects, including those of missiles, pipe whipping, and discharge fluids, that may result from equipment failure and from events outside the nuclear power unit. GDC 4 provides for a suitable and controlled operating environment for structures, systems, and components during normal operation, during adverse environmental occurrences, and during and subsequent to postulated accidents, including loss of offsite power. SRP Section 3.8.3 provides detailed acceptance criteria and cites appropriate regulatory guidance for a design methodology that is acceptable to the staff for protecting containment internal structures from the effects of dynamic loads. Meeting these requirements provides