Document: NUREG-0800
Document ID: 228b9b6e-c81e-4d76-9b8e-12f6c3bd7fa1
Document Type: srp
Title: and Regulatory Guide 1.92,(Reference 10) "Combining Modal Responses
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070336.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.7.2
CFR Part: 
CFR Title: 

Content:
n loadings, the applicant commits to perform this analysis or identifies the applicable document, generally in the form of a topical report, containing the required information. A brief description of the scope and methods of analysis should be provided. In the OL review, the staff reviews the detailed information to confirm that an adequate analysis has been made of the capability of reactor internal structures and unbroken loops to withstand dynamic loads from the most severe LOCA in combination with the safe shutdown earthquake. The staff review covers the analytical methods and procedures, the basis of the forcing functions, the mathematical models to represent the dynamic system, and the stability investigations for the core barrel and essential compressive elements. Acceptance of the analysis is based on (1) the technical soundness of the analytical methods used, (2) the degree of conformance to the acceptance criteria listed above, and (3) verification that stresses under the combined loads are within allowable limits of the applicable code and deformations are within the limits set to assureensure the ability of reactor internal structures and piping to perform needed safety functions. On request, RSBSRXB verifies that an acceptable hydraulic analysis has been used. 62 3.9.2-25 DRAFT Rev. 3 - April 1996 6. EMEB reviews the program which the applicant has committed to implement as part of the preoperational test procedure, principally to correlate the test measurements with the analytically predicted flow-induced dynamic response of the reactor internals. EMEB reviews the applicant's statements in this area to assureensure that there is a commitment to submit a report on a timely basis. The report should summarize the analyses and test results so that EMEB can review the compatibility of the results from tests and 63 analyses, the consistency between mathematical models used for different loadings, and the validity of the interpretation of the test and