Document: NUREG-0800
Document ID: 73dc4705-6dff-4f44-87ee-2a6f76cc6536
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1319/ML13198A258.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
module design, fabrication, configuration, layout, and connections are reviewed on a case-by-case basis. 2. Applicable Codes, Standards, and Specifications. The information pertaining to design codes, standards, specifications, regulatory guides (RGs), and other industry standards that are applied in the design, fabrication, construction, testing, and surveillance of seismic Category I structures is reviewed. 3. Loads and Loading Combinations. The review encompasses information pertaining to the applicable design loads and various load combinations thereof. The loads normally applicable to seismic Category I structures include the following: A. Those loads encountered during construction of the seismic Category I structures which include 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 construction sequence and by the differential settlements of the soil under and to the sides of the structures, erection and fitting forces, equipment reactions, and form pressure. B. Those loads encountered during normal plant startup, operation, and shutdown, including dead loads, live loads, thermal loads resulting from operating temperature, and hydrostatic loads such as those in spent fuel pools. C. Those loads to be sustained during severe environmental conditions, including those induced by the operating-basis earthquake (OBE) and the design wind specified for the plant. Subsection II.3.A defines the condition for which the OBE load is required for design of seismic Category I structures. D. Those loads to be sustained during extreme environmental conditions, including those induced by the SSE and the design tornado and hurricane specified for the plant. E. Those loads to be sustained during abnormal plant conditions. Such abnormal plant conditions include