Document: NUREG-0800
Document ID: 7024eeeb-1819-4d56-9b72-fb63eab3836b
Document Type: srp
Title: and 3.9.3.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1006/ML100620981.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
for the Design, Fabrication and including Supplement 2 (2004) Erection of Steel Safety-Related Structures for Nuclear Facilities Regulatory Guides 1.57 Design Limits and Loading Combinations for Metal Primary Reactor Containment 1.69 Concrete Radiation Shields for Nuclear Power Plants 1.136 Materials, Construction, and Testing of Concrete Containments 1.142 Safety-Related Concrete Structures for Nuclear Power Plants (Other Than Reactor Vessels and Containments) 1.143 Design Guidance for Radioactive Waste Management Systems, Structures, and Components Installed in LWR Plants 1.160 Monitoring the Effectiveness of Maintenance at Nuclear Power Plants 1.199 Anchoring Components and Structural Supports in Concrete 3. Loads and Load Combinations The loads and load combinations for containment internal structures described in Subsection I.1 of this SRP are acceptable if they are consistent with the guidance given below. The loads and load combinations for the divider-barrier and ice-condenser elements of the ice-condenser PWR containment and the drywell of the BWR containment are presented following the general criteria given for concrete and steel structures. 3.8.3-16 Revision 3 - May 2010 A. Concrete Structures All loads and load combinations are to be in accordance with ACI 349 and RG 1.142. Supplemental criteria on the use of loads and load combinations are presented below. Dead loads include hydrostatic loads, and, for equipment supports, they include static and dynamic head and fluid flow effects. Live loads include any movable equipment loads and other loads that vary with intensity and occurrence. For equipment supports, they also include loads caused by vibration and any support movement effects. Alternate load cases in which the magnitudes and locations of the live loads are arranged so that worst-case conditions are included in the design should be investigated, as appropriate. As per 10 CFR Part 50, Appendix S, the OBE is only associated with plant shutdown and