Document: NUREG-0800
Document ID: 5f917fa2-996e-40db-ab71-094808f68797
Document Type: srp
Title: ANALYSIS PROCEDURES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070306.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.4.2
CFR Part: 
CFR Title: 

Content:
elieved by utilizing a drainage and pumping system around the foundations of structures, it has to be considered as a structural load on the basement walls and foundation slab of the building. Another consideration in such a situation is to prevent any uplift or floating of the structure. The total buoyancy force may be based on the flood or highest groundwater head excluding wave action, if applicable. However, the lateral, overturning and upward hydrostatic pressures acting on the side walls and on the foundation slab, respectively, which should 3.4.2-3 DRAFT Rev. 3 - April 1996 be considered in the structural design of these elements, should be based on the total head including wave action, if any. 3. Where the flood level is above the proposed plant grade, the dynamic loads of wave 17 action should be considered. Analysis procedures for determining such dynamic loads 18 are acceptable if they are in accordance with or similar to those delineated in the U.S. Army Coastal Engineering Research Center, Technical Report No. 4 (Ref. 2) , as 19 20 applicable. Other methods are reviewed on a case-by-case basis. Technical Rationale The technical rationale for application of the above acceptance criteria to the review of the analysis procedures for determining structural forces due to flooding phenomena is discussed in the following paragraphs.21 GDC 2 requires that structures important to safety shall be designed to withstand the effects of natural phenomena such as floods, tsunamis, and seiches without loss of capability to perform their safety function. This includes the effects of the highest groundwater condition. This SRP guides the review of analysis procedures for the determination of static and dynamic loadings due to natural flooding phenomena. These loadings are to be used in the design of structures, systems, and components important to safety in order to ensure their capability to withstand flood effects without loss of their safety functions. Meeting this