Document: NUREG-0800
Document ID: ab4f353d-c299-479d-ab25-834f97196988
Document Type: srp
Title: CONCRETE AND STEEL INTERNAL STRUCTURES OF STEEL OR CONCRETE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070326.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.8.3
CFR Part: 
CFR Title: 

Content:
paragraph (i) under PWR dry containments. subsection II.4.a.i.112 (vi)vi. Reactor Shield Wall This cylindrical wall, which surrounds the reactor and provides biological shielding, should be subjected to most of the loads described in subsection II.3 of this SRP section. In most cases, the wall is utilized to anchor most of the pipe restraints placed around the reactor coolant system piping. A pipe rupture in the vicinity of the reactor nozzles may DRAFT Rev. 2 - April 1996 3.8.3-28 pressurize the space within the wall. The wall may be lined on both faces with steel plates which may constitute the major structural elements relied upon to resist the design loads. Similar to the reactor pedestal, the biological shield wall is also subjected to dynamic loss-of-coolant accidentLOCA loads and the same methods are, therefore, applicable 113 and acceptable. (vii)vii. Miscellaneous Platforms Platforms inside the drywell are usually of structural steel and their main structural function is to provide foundations for the pipe restraints inside the drywell. Platforms outside the drywell are usually combinations of steel and concrete. The analytical and design procedures for these platforms are acceptable if found in accordance with the ACI 349 Code for reinforced concrete and with the AISC N690 Specifications for 114 structural steel. Of particular interest are the dynamic loads induced on these floors by pool swell during a LOCA. d. Computer programs used in the design and analysis of containment interior 115 structure should be described and validated by any of the procedures described in subsection II.4.e of Standard Review PlanSRP Section 3.8.1. de. StructuralA structural design audit is conducted as described in Appendix B to 116 SRP Section 3.8.4. ef. DesignThe applicant's design report is considered acceptable if it satisfies the 117 guidelines of Appendix C to SRP Section 3.8.4. 5. Structural Acceptance Criteria With the exception of the divider barrier and