US EPR Piping Analysis and Pipe Support Design Topical Report.

98 Pages·2010·0.76 MB·English

ANP-10264NP
Revision 1

U.S. EPR Piping Analysis and Pipe Support Design
Topical Report

May 2010

AREVA NP Inc.
Non-Proprietary
(c) 2010 AREVA NP Inc.
Copyright © 2010
AREVA NP Inc.
All Rights Reserved
AREVA NP Inc. ANP-10264NP
Revision 1
U.S. EPR Piping Analysis and Pipe Support Design
Topical Report Page i
Nature of Changes
Revision 0
Section(s)
Item or Page(s) Description and Justification

1. All This is a new document

Revision 1
Section(s)
Item or Page(s) Description and Justification

1. 2-1 Section 2.1 Changed references to the 2001 edition of the
ASME Code, 2003 Addenda to the 2004 edition
3-9, Section 3.8.1 of the ASME Code (no addenda) in response to
3-27, Table 3-2 U.S. EPR FSAR RAI 365.
8-1, Section 8.0

2. 2-2, Section 2.2 Added a note that code cases N-122-2, N-318-5,
N-391-2, and N-392-3 have been incorporated
into the 2004 edition of the ASME Code (no
addenda) in response to
U.S. EPR FSAR RAI 365.

Revision 1 incorporates the items identified above. The remainder of the document retains
approved status associated with the Revision 0 SER.
AREVA NP Inc. ANP-10264NP
Revision 1
U.S. EPR Piping Analysis and Pipe Support Design
Topical Report Page ii
Contents
Page

1.0 INTRODUCTION...............................................................................................1-1
2.0 CODES AND STANDARDS..............................................................................2-1
2.1 ASME Boiler and Pressure Vessel Code................................................2-1
2.2 ASME Code Cases.................................................................................2-1
2.3 Design Specification...............................................................................2-2
3.0 PIPING STRESS ANALYSIS CRITERIA..........................................................3-1
3.1 Piping Seismic Classifications ................................................................3-1
3.2 Service Levels ........................................................................................3-1
3.2.1 Level A (Normal)..........................................................................3-2
3.2.2 Level B (Upset)............................................................................3-2
3.2.3 Level C (Emergency)...................................................................3-2
3.2.4 Level D (Faulted)..........................................................................3-2
3.2.5 Testing ................................................................................3-3
3.3 Loadings and Load Combinations ..........................................................3-3
3.3.1 Loadings ................................................................................3-3
3.3.2 Load Combinations......................................................................3-6
3.4 Fatigue Evaluation..................................................................................3-6
3.4.1 Code Class 1 Piping.....................................................................3-6
3.4.2 Code Class 2 and 3 Piping...........................................................3-7
3.5 Functional Capability...............................................................................3-7
3.6 Welded Attachments...............................................................................3-8
3.7 Thermal Stratification (Thermal Stratification, Cycling and Striping).......3-8
3.7.1 NRC Bulletin 79-13 (Feedwater Lines).........................................3-8
3.7.2 NRC Bulletin 88-11 (Surge Line)..................................................3-9
3.7.3 NRC Bulletin 88-08 (Unisolable piping due to leaking valves) .....3-9
3.8 Design and Installation of Pressure Relief Devices ................................3-9
3.8.1 Design and Installation Criteria....................................................3-9
3.8.2 Analysis Requirements for Pressure Relieving Devices.............3-10
3.9 Intersystem LOCA ................................................................................3-10
3.10 Seismic Category I Buried Pipe............................................................3-11
3.10.1 Static Loads and Load Combinations for Buried Pipe................3-11
3.10.2 Thermal Expansion and Contraction..........................................3-16
3.10.3 Seismic Loads............................................................................3-17
4.0 PIPING ANALYSIS METHODS........................................................................4-1
4.1 Experimental Stress Analysis .................................................................4-1
4.2 Seismic Analysis Methods......................................................................4-1
4.2.1 Seismic Input................................................................................4-2
4.2.2 Response Spectrum Method........................................................4-2
4.2.3 Time History Method..................................................................4-14
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4.2.4 Equivalent Static Load Method ..................................................4-16
4.2.5 Damping Values.........................................................................4-17
4.3 Inelastic Analysis Methods....................................................................4-18
4.4 Non-Seismic/Seismic Interaction..........................................................4-18
4.4.1 Isolation of Seismic and Non-Seismic Systems.........................4-19
4.4.2 Interaction Evaluation.................................................................4-19
4.5 Small Bore Piping.................................................................................4-20
5.0 PIPING MODELING TECHNIQUES..................................................................5-1
5.1 Computer Codes.....................................................................................5-1
5.1.1 SUPERPIPE ................................................................................5-1
5.1.2 BWSPAN ................................................................................5-1
5.1.3 GT STRUDL ................................................................................5-2
5.2 Dynamic Piping Model............................................................................5-2
5.3 Piping Benchmark Program....................................................................5-4
5.4 Model Boundaries...................................................................................5-4
5.4.1 Structural Boundaries...................................................................5-4
5.4.2 Decoupling Criteria.......................................................................5-5
5.4.3 Model Isolation Methods..............................................................5-8
5.5 Seismic/Non-Seismic Interface Boundaries..........................................5-10
6.0 PIPE SUPPORT DESIGN CRITERIA ...............................................................6-1
6.1 Applicable Codes....................................................................................6-1
6.2 Jurisdictional Boundaries........................................................................6-2
6.3 Loads and Load Combinations...............................................................6-3
6.3.1 Deadweight (D) Loads .................................................................6-4
6.3.2 Thermal (T , T , T , T ) Loads.....................................................6-4
N U E F
6.3.3 Friction (F) Loads.........................................................................6-5
6.3.4 System Operating Transient (R ) Loads...................................6-5
SOT
6.3.5 Wind (W) Loads...........................................................................6-6
6.3.6 Tornado (W ) Loads.....................................................................6-6
T
6.3.7 Design Basis Pipe Break (R ) Loads ......................................6-6
DBPB
6.3.8 Main Steam / Feedwater Pipe Break (R ) Loads................6-7
MS/FWPB
6.3.9 Loss of Coolant Accident (LOCA) Loads......................................6-7
6.3.10 Safe Shutdown Earthquake (SSE) Loads....................................6-7
6.3.11 Minimum Design Loads................................................................6-8
6.4 Pipe Support Baseplate and Anchor Bolt Design....................................6-8
6.5 Use of Energy Absorbers and Limit Stops (Non-Linear Response)........6-8
6.6 Use of Snubbers.....................................................................................6-9
6.7 Pipe Support Stiffnesses.......................................................................6-10
6.8 Support Self-Weight Excitation.............................................................6-11
6.8.1 Seismic Loads............................................................................6-11
6.8.2 Other Dynamic Loads................................................................6-11
6.9 Design of Supplemental Steel...............................................................6-12
6.10 Consideration of Friction Forces...........................................................6-12
6.11 Pipe Support Gaps and Clearances .....................................................6-13
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U.S. EPR Piping Analysis and Pipe Support Design
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6.12 Instrumentation Line Support Criteria...................................................6-13
6.13 Pipe Deflection Limits...........................................................................6-13
7.0 SUMMARY/CONCLUSIONS.............................................................................7-1
8.0 REFERENCES..................................................................................................8-1
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Topical Report Page v
List of Tables
Page
Table 1-1: Analysis and Design Responsibilities for COL Applicants..........................1-3
Table 3-1: Load Combinations and Acceptance Criteria for ASME Class 1 Piping...3-22
Table 3-2: Design Conditions, Load Combination and Stress Criteria for ASME
Class 2&3 Piping.....................................................................................3-27
Table 3-3: Functional Capability of Piping ASME Class 1, 2 & 3(1)............................3-28
Table 3-4: Design Conditions, Load Combination and Stress Criteria for ASME
Class 2&3 Buried Piping..........................................................................3-29
Table 3-5: Impact Factor for Surface Load Effect on Buried Pipes ...........................3-30
Table 3-6: Recommended Surface Load for Buried Pipe..........................................3-31
Table 4-1: Suggested Deadweight Pipe Support Spacing.........................................4-21
Table 6-1: Loading Combinations for Piping Supports..............................................6-15
AREVA NP Inc. ANP-10264NP
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U.S. EPR Piping Analysis and Pipe Support Design
Topical Report Page vi
List of Figures
Page
Figure 5-1: Model Isolation Methods of Division- Comparison of Qualification
Boundaries.............................................................................................5-12
AREVA NP Inc. ANP-10264NP
Revision 1
U.S. EPR Piping Analysis and Pipe Support Design
Topical Report Page vii
Nomenclature

Acronym Definition

ACI American Concrete Institute
AISC American Institute of Steel Construction
ANSI American National Standards Institute
ARS Amplified Response Spectra
ASME American Society of Mechanical Engineers
AWS American Welding Society
CFR Code of Federal Regulations
COL Combined Construction Permit and Operating License
DBPB Design Basis Pipe Break
DCD Design Control Document
DFL Dynamic Fluid Load
DLF Dynamic Load Factor
GDC General Design Criterion
ISM Independent Support Motion
LBB Leak-Before-Break
LOCA Loss-of-Coolant Accident
MS/FWPB Main Steam / Feedwater Pipe Break
NPS Nominal Pipe Size
NRC U.S. Nuclear Regulatory Commission
OBE Operating Basis Earthquake
RCL Reactor Coolant Loop
RG Regulatory Guide
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U.S. EPR Piping Analysis and Pipe Support Design
Topical Report Page viii
SAM Seismic Anchor Motion
S.I. Stress Intensity
SIF Stress Intensification Factor
S.I.R. Stress Intensity Range
SOT System Operating Transient
SRP Standard Review Plan
SRSS Square Root of the Sum of the Squares
SSC Structures, Systems and Components
SSE Safe Shutdown Earthquake
TAM Thermal Anchor Movement
USM Uniform Support Motion
ZPA Zero Period Acceleration