Document: NUREG-0800
Document ID: 7024eeeb-1819-4d56-9b72-fb63eab3836b
Document Type: srp
Title: and 3.9.3.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1006/ML100620981.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
amplified by an appropriate chosen dynamic factor be employed. Elastic behavior of the wall should be maintained under the differential pressure. However, for the concentrated accident loads, such as Yr, Yj, or Ym, elasto-plastic behavior may be assumed if the deflections are limited to maintain functional requirements. Simplified methods for determining effective dynamic load factors for elastic behavior are acceptable if found to be in accordance with recognized dynamic analysis methods. 3.8.3-19 Revision 3 - May 2010 ii. Secondary Shield Walls Design and analysis procedures used for the secondary shield walls are acceptable if found to be in accordance with conventional beam/slab design and analysis procedures described in ACI 349, with additional guidance provided RG 1.142. The design and analysis of anchors (steel embedments) used for component and structural supports on concrete structures are acceptable if found to be in accordance with ACI 349, Appendix B, with additional guidance provided by RG 1.199. Similar to the primary shield wall, the secondary shield walls are also subject to dynamic LOCA loads and the methods described in Subsection II.4.A.i are, therefore, applicable and acceptable. iii. Other Interior Structures Most of the other interior structures that are reviewed are combinations of reinforced concrete slabs, walls, beams, and columns, and steel beams and columns, which are classified as Category I structures subject to the loads and load combinations described in Subsection II.3 of this SRP section. Analytical techniques for these structures are acceptable if found to be in accordance with those described in ACI 349, and with additional guidance provided by RG 1.142 and 1.199 for concrete and anchors (steel embedments), respectively, and with ANSI/AISC N690-1994 including Supplement 2 (2004) for steel. B. PWR Ice-Condenser Containment Internal Structures i. Divider Barrier The most important loads that usually govern the design of the