Document: NUREG-0800
Document ID: 1f106a50-722f-45fa-952a-2e7ab7d836c1
Document Type: srp
Title: DYNAMIC TESTING AND ANALYSIS OF SYSTEMS, COMPONENTS, AND EQUIPMENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052360453.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
o consider differential piping support movements at different support points located within a structure and between structures, are reviewed. 3.9.2-2 Rev. 2 - July 1981 9. Multiply-Supported Equipment and Components with Distinct Inputs The criteria and procedures for seimic analysis of equipment and components supported at different elevations within a building and between buildings with distinct inputs are reviewed. h. Use of Constant Vertical Static Factors Where applicable, justification for the use of constant static factors as vertical response loads for designing Category I systems, components, equipment and their supports in lieu of the use of a vertical seismic system dynamic analysis is reviewed. i. Torsional Effects of Eccentric Masses The criteria and procedures that are used to consider the torsional effects of eccentric masses (e.g., valve operators) in seismic system analyses are reviewed. j. Category I Buried Piping Systems For Category I buried piping, the seismic criteria and methods which consider the effect of fill settlement including pipe profile and pipe stresses, the movements at support points, penetrations, and anchors are reviewed. k. Interaction of Other Piping With Category I Piping The seismic analysis procedures to account for the seismic motion of non-Category I piping systems in the seismic design of Category I piping are reviewed. 1. Criteria Used for Damping The criteria to account for damping in systems, components, equipment and their supports is reviewed. 3. Dynamic responses of structural components within the reactor vessel caused by steady-state and operational flow transient conditions should be analyzed for prototype (first of a design) reactors. Generally, this analysis is not required for nonprototypes except that segments of an analysis may be necessary if there are substantial deviations from the prototype internals design. The purpose of this analysis is to predict the vibration behavior of the components, so that the