Document: NUREG-0800
Document ID: 786da65a-4915-4af3-afb3-678b7df5bea7
Document Type: srp
Title: OTHER SEISMIC CATEGORY I STRUCTURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070327.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.4
CFR Part: 
CFR Title: 

Content:
earthquake (SSE) and the design tornado specified for the plant. d. Those loads to be sustained during abnormal plant conditions. Such abnormal plant conditions include the postulated rupture of high- energy piping. Loads induced by such an accident may include elevated temperatures and pressures within or across compartments, and possibly jet impingement and impact forces associated with such ruptures. The various combinations of the above loads that are normally postulated and reviewed include normal operating loads, normal operating loads with severe environmental loads, normal operating loads with extreme environmental loads, normal operating loads with abnormal loads, normal operating loads with severe environmental and abnormal loads, and normal operating with extreme environmental and abnormal loads. The loads and load combinations described above are generally applicable to all types of structures. However, other site-related loads might also be applicable. Such loads, which are not normally combined with abnormal loads, include those induced by floods, potential aircraft crashes, explosive hazards in proximity to the site, and projectiles and missiles generated from activities of nearby military installations. 4. Design and Analysis Procedures The design and analysis procedures used for Category I structures are reviewed with emphasis on the extent of compliance with the ACI 349, Code "Code Requirements for Nuclear Safety-Related Structures," (Ref.1) * for concrete structures; and with the 6 7 AISCANSI/AISC N690-1984, "Specifications for the Design, Fabrication and Erection of Steel Safety-Related Structures for Nuclear Facilities," Specifications (Ref. 3) for 8 9 3.8.4-5 DRAFT Rev. 2 - April 1996 steel structures; and supplemented by Appendices E, F, and G to this SRP section,10 including the following areas: a. General assumptions on boundary conditions. b. The expected behavior under loads and the methods by which vertical and lateral loads and forces