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:
rom test and analysis for possible verification of stress levels. e. Comparison of the mathematical model used for dynamic system analysis under operational flow transients and under the combined LOCA and SSE loadings, to note similarities. Technical Rationale48 The technical rationale for application of these acceptance criteria to reviewing the dynamic testing and analysis of systems, components, and equipment is discussed in the following paragraphs.49 (1) Compliance with GDC 1 requires that systems and components important to safety be designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety functions to be performed. Vibration, thermal expansion, and dynamic effects tests are described in this SRP section for startup functional testing of specified high-energy and moderate-energy piping and their supports and restraints. Guidance is provided herein and in RG 1.20 for analysis of vibration of reactor internals. These vibration analyses are to be confirmed by prototype testing. Dynamic analyses methods are described in this SRP section for all Seismic Category 1 systems, components, equipment and their supports (including supports for conduit and cable trays, and ventilation ducts). Meeting the requirements of GDC 1 provides assurance that systems and components within the scope of this SRP section will be capable of performing their intended safety function.50 (2) Compliance with GDC 2 requires that systems and components important to safety be designed to withstand the effects of expected natural phenomena combined with the appropriate effects of normal and accident conditions, without loss of capability to perform their safety functions. Vibration testing, dynamic analyses, and suitable comparisons are described in this SRP section for systems and components important to safety. The tests, analyses, and comparisons are in accordance with sound engineering practices and provide assurance that these systems