Document: NUREG-0800
Document ID: 1f4dbda0-7bea-416c-9d89-910450ba3299
Document Type: srp
Title: provide further guidance on the use of OBE.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1235/ML12353A377.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
For structures or structural components subjected to hydrodynamic loads resulting from LOCA and/or SRV actuation, such loads should be considered as indicated in the appendix to SRP Section 3.8.1. Fluid structure interaction associated with these hydrodynamic loads and those from earthquakes should be taken into account. The design of concrete structures must consider the loads and load combinations that may occur during their construction. These loads consist of dead loads, live loads, temperature, wind, snow, rain, and ice. Applicable construction loads include material loads, personnel and equipment loads, horizontal construction loads, erection and fitting forces, equipment reactions, and form pressure. Structural Engineering Institute (SEI)/ASCE Standard 37 provides additional guidance on construction loads. This standard may be used for supplemental guidance. When the standard and the Code/SRP provide conflicting criteria, the criteria provided in Code/SRP governs. B. Steel Structures All loads and load combinations are to be in accordance with ANSI/AISC N690-1994 including Supplement 2 (2004). This specification uses the allowable 3.8.3-20 Draft Revision 4 - December 2012 stress design (ASD) method. Use of the load and resistance factor design (LRFD) version of the specification (N690L) is reviewed on a case-by-case basis. The supplemental criteria on the use of loads and load combinations presented above for concrete structures also apply to steel structures. C. Divider Barrier and Ice-Condenser of the PWR Ice-Condenser Containment Specific load and load combination criteria applicable to the divider barrier and ice-condenser elements are given below. Supplemental criteria presented in Subsection II.3.A of this SRP section are also applicable. i. Divider Barrier Because the structural integrity of the divider barrier and, to a certain extent, its leak tight integrity are important to the proper functioning of the ice-condenser containment system, it is