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:
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 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. F. Those loads induced by hydrodynamic loads (e.g., Safety Relief Valves (SRV) and LOCAs) which could generate building vibration inertial loads, including floor response spectra, and elevated temperatures. The various combinations of the above loads that are normally postulated and reviewed include construction loads, 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 loads with extreme environmental and abnormal loads. 3.8.4-5 Revision 4 – September 2013 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 (non-terrorism-related incidents), explosive hazards in proximity to the site, and projectiles and missiles generated from activities of nearby military installations. 4. Design and Analysis Procedures. The review of the design and analysis procedures used for seismic Category I structures focuses on the extent of compliance with American Concrete Institute (ACI) 349, with supplemental guidance by RG 1.142 for concrete structures and American National Standard Institute (ANSI)/ American Institute of Steel Construction (AISC) N690-1994 including Supplement 2 (2004) for steel structures.