Document: NUREG-0800
Document ID: 0c95c042-addf-4bad-84f5-1d1692769268
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR CONCRETE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550052.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
guard pipes, should be designed in accordance with the appropriate sections of Subsection NE of the ASME Code, Section III, Division 1, with additional criteria provided by applicable portions of SRP Section 3.8.2 and RG 1.57 apply. For other steel portions of the divider barrier, the loads and load combinations as defined in Subsection II.3.B apply. ii. Ice-Condenser Elements The structural integrity of the ice baskets, ice-bed framing, and their supports is important to the functional integrity of the ice-condenser containment system. Loads and load combinations for the ice-condenser elements are acceptable if found to be in accordance with ANSI/AISC N690-1994 including Supplement 2 (2004). For the ice-condenser, the load Pa is the LOCA pressure load induced by drag and change in the momentum of flowing air and steam. D. BWR Containment Drywell This SRP section is oriented toward the BWR Mark III containment concept. Other BWR containment types are reviewed in a similar manner. Because the structural integrity of the drywell and, to a certain extent, its leaktight integrity are critically important to the proper functioning of the pressure-suppression system, the drywell is treated, for design and testing purposes only, in a manner similar to the containment itself. Accordingly, for the concrete pressure-resisting portions of the drywell, the loads and loading combinations of Article CC-3000 of ASME Code, Section III, Division 2, will apply, with additional criteria provided by applicable portions of SRP Section 3.8.1 and RG 1.136. For steel components of the drywell that resist pressure and are not backed by concrete, the appropriate sections of Subsection NE of ASME Code, Section III, Division 1, should be used with additional guidance provided by applicable portions of SRP Section 3.8.2 and RG 1.57. Specifically, the loads and load combinations of Subsection II.3 of SRP Section 3.8.2 apply. Additional criteria presented in Subsection II.3.A of this SRP section