Document: NUREG-0800
Document ID: 808cea66-69b8-4f91-9fb2-62b3b99bc87a
Document Type: srp
Title: NUREG-0800
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340579.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3
CFR Part: 
CFR Title: 

Content:
rdance with the following: (i) For service load conditions, if elastic working stress design methods are used: (1) D + L 3.8. 3-19 Rev. 1 - July 1981 (2) D + L + E (ii) For service load conditions, if plastic design methods are used: (1) 1.7 D + 1.7 L (2) 1.7 D + 1.7 L + 1.7 E (iii) For service load conditions, if an experimental test verification of.the design is used: (1) 1.9 D + 1.9 L (2) 1.9 D + 1.9 L + 1.9 E If thermal stresses are significant and have to be considered, an acceptable procedure for accounting for such thermal loads is contained in item (a) of Subarticle NF-3231.1 of Subsection F of the ASME Code, Section III, Division 1 (Ref. 1). (iv) For factored load conditions, if elastic working stress design methods are used: (3) D + L + E' (4) D + L + Pa (5) D + L+ P + El a (v) For factored load coditions, if plastic design methods are used: (3) 1.3 D + 1.3 L + 1.3 El (4) 1.3 D + 1.3 L + 1.3 P (5) 1.2 D + 1.2 L + 1.2 Pa + 1.2 E' (vi) For factored load conditions, if an experimental test verification of the design is used: (3) 1.4 D + 1.4 L + 1.4 E' (4) 1.4 D + 1.4 L + 1.4 Pa (5) 1.3 D + 1.3 L + 1.3 Pa + 1.3 E' f. BWR Mark III Containment Drywell As the structural integrity of the drywell and, to a certain extent, its leak-tight integrity as well, are critically important to the proper functioning of the Mark III pressure-suppression system, the drywell is treated, for design and testing purposes only, similar to the containment itself. 3.8.3-20 Rev. 1 - July 1981 Accordingly, for concrete pressure-resisting portions of the drywell, the loads and loading combinations of Article CC-3000 of ASME Code Section III, Division 2 (Ref. 4) will apply, with the exceptions listed for concrete portions of the PWR ice-condenser divider barrier. For steel components of the drywell that resist pressure and are not backed by concrete, such as the drywell head, the appropriate sect- ions of Subsection NE of the ASME Code, Section III, Division 1, (Ref. 5) should be used