Document: NUREG-0800
Document ID: 93a26deb-9fac-4f56-a0c6-8addc960a55b
Document Type: srp
Title: ASME CODE CLASS 1, 2, AND 3 PIPING SYSTEMS, PIPING COMPONENTS AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0700/ML070040002.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.12
CFR Part: 
CFR Title: 

Content:
ty to maintain the functionality of the piping components under all combinations of loadings. i. Applicable Codes The design of ASME Code, Section III, Class 1, 2, and 3, piping supports should comply with the design criteria requirements of ASME Code, Section III, Subsection NF. 3.12-11 March 2007 ii. Jurisdictional Boundaries The jurisdictional boundaries between pipe supports and interface attachment points should comply with ASME Code, Section III, Subsection NF. iii. Loads and Load Combinations The criteria provided in SRP Section 3.9.3, Subsection II.1 are applicable. iv. Pipe Support Baseplate and Anchor Bolt Design The design of the pipe support baseplates and anchor bolts should comply with guidance provided in NRC BL 79-02, Revision 2. v. Use of Energy Absorbers and Limit Stops The evaluation typically consists of iterative response spectra analyses of the piping and support system. The analyses will be reviewed on a case by case basis. vi. Use of Snubbers The acceptance criteria provided in SRP Section 3.9.3, Subsection II.3 are applicable. vii. Pipe Support Stiffness The acceptance criteria provided in SRP Section 3.9.3, Subsection II.3 are applicable. viii. Seismic Self-Weight Excitation The acceptance criteria provided in SRP Section 3.9.3, are applicable for loads caused by the seismic excitation of the pipe support. ix. Design of Supplementary Steel The design of structural steel for use as pipe supports should comply with the ASME Code, Section III, Subsection NF. x. Consideration of Friction Forces The design of sliding type supports, such as guides or box supports, should include evaluation of the friction loads induced by the pipe on the support. The applicant should provide the friction coefficients used in the evaluation. The proposed friction coefficient will be reviewed on a case by case basis. 3.12-12 March 2007 xi. Pipe Support Gaps and Clearances Small gaps are generally provided for frame type supports. The gap allows for radial thermal