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:
tructural steel, S is the required section strength based on the elastic design methods and the allowable stresses defined in Part 1 of the AISC "Specification for the Design, Fabrication and Erection of Structural Steel for Buildings." The 33-1/3% increase in allowable stresses for steel due to seismic loadings is. not permitted. (2) U - For concrete strcutres, V is the section strength required to resist design loads based on the strength design methods described in ACI 349 Code with the exception of divider barrier. (3) Y - For structural steel, Y is the section strength required to resist design loads and based on plastic design methods described in Part 2 of the AISC "Specification for the Design, Fabrication and Erection of Structural Steel for Buildings." (4) - For these two combinations, in computing the required section strength, S, the plastic section modulus of steel shapes may be used. 3.8.3-25 Rev. 1 - July 1981 For the divider barrier, ice-condenser elements, and the drywell, the structural acceptance criteria are acceptable if found in accordance with the following: a. Divider Barrier (i) For concrete portions of the divider barrier, the specified limits for stresses and strains are acceptable if found in accordance with Subsection CC3430 of ASME Code Section III, Division 2. The 33-1/3% increase in allowable stresses is permitted only for temperature loads and not for OBE seismic or wind loads. (ii) For steel portions of the divider barrier which resist the design differential pressure and are not backed by concrete, the design should be similar to that of steel containments. Accordingly, the load combinations and stress limits of subsection II.3 of Standard Review Plan Section 3.8.2 apply. b. Ice-Condenser Elements For load combination delineated in subsection II.3 of this SRP section for the ice-condenser elements, the stress limits are acceptable if found in accordance with the following: For Combinations Limit e(i) (1), (2). . . . . . . . . . . .