Seismic Analysis of Large-Scale Piping Systems for the JNES ... - NRC

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Figure 4-17 Displacement D4 Comparison for DM2-1 ..............................................................................87 Figure 4-18 Acceleration A2 Comparison for DM2-1................................................................................88 Figure 4-19 Displacement D2 Comparison for DM2-2 ..............................................................................89 Figure 4-20 Displacement D4 Comparison for DM2-2 ..............................................................................90 Figure 4-21 Acceleration A2 Comparison for DM2-2................................................................................91 Figure 4-22 Displacement D2 Comparison for DM4-1 ..............................................................................92 Figure 4-23 Displacement D4 Comparison for DM4-1 ..............................................................................93 Figure 4-24 Acceleration A2 Comparison for DM4-1................................................................................94 Figure 4-25 Displacement D2 Comparison for DM4-2(1) (Restart)...........................................................95 Figure 4-26 Displacement D4 Comparison for DM4-2(1) (Restart)...........................................................96 Figure 4-27 Acceleration A2 Comparison for DM4-2(1) (Restart) ............................................................97 Figure 4-28 Displacement D2 Comparison for DM4-2(2) (Restart)...........................................................98 Figure 4-29 Displacement D4 Comparison for DM4-2(2) (Restart)...........................................................99 Figure 4-30 Acceleration A2 Comparison for DM4-2(2) (Restart) ..........................................................100 Figure 4-31 Displacement D2 Comparison for DM4-2(1) (Fresh Start) ..................................................101 Figure 4-32 Displacement D4 Comparison for DM4-2(1) (Fresh Start) ..................................................102 Figure 4-33 Acceleration A2 Comparison for DM4-2(1) (Fresh Start)....................................................103 Figure 4-34 Displacement D2 Comparison for DM4-2(2) (Fresh Start) ..................................................104 Figure 4-35 Displacement D4 Comparison for DM4-2(2) (Fresh Start) ..................................................105 Figure 4-36 Acceleration A2 Comparison for DM4-2(2) (Fresh Start)....................................................106 Figure 4-37 Elbow 2 Shell Model for Design Method Confirmation Tests..............................................107 Figure 4-38 Nodes and Elements for Strain Measurements For DM Tests ..............................................107 Figure 4-39 Relative Deformation Histories as Input Motions to Elbow Model for DM2-1 ...................108 Figure 4-40 Relative Deformation Histories as Input Motions to Elbow Model for DM2-2 ...................109 Figure 4-41 Relative Deformation Histories as Input Motions to Elbow Model for DM4-1 ...................110 Figure 4-42 Relative Deformation Histories as Input Motions to Elbow Model for DM4-2(1) (Restart) ............................................................................................................................................111 Figure 4-43 Relative Deformation Histories as Input Motions to Elbow Model for DM4-2(2) (Restart) ............................................................................................................................................112 Figure 4-44 Relative Deformation Histories as Input Motions to Elbow Model for DM4-2(1) (Fresh Start) .................................................................................................................................................113 Figure 4-45 Relative Deformation Histories as Input Motions to Elbow Model for DM4-2(2) (Fresh Start) .................................................................................................................................................114 Figure 4-46 Strain Ratcheting Comparison at Element 145 for DM4-1...................................................115 Figure 4-47 Strain Ratcheting Comparison at Element 154 for DM4-1...................................................116 Figure 4-48 Strain Ratcheting Comparison at Element 639 for DM4-1...................................................117 Figure 4-49 Strain Ratcheting Comparison at Element 648 for DM4-1...................................................118 Figure 4-50 Strain Ratcheting Comparison at Element 145 for DM4-2(1) (Fresh Start) .........................119 Figure 4-51 Strain Ratcheting Comparison at Element 154 for DM4-2(1) (Fresh Start) .........................120 Figure 4-52 Strain Ratcheting Comparison at Element 639 for DM4-2(1) (Fresh Start) .........................121 Figure 4-53 Strain Ratcheting Comparison at Element 648 for DM4-2(1) (Fresh Start) .........................122 Figure 4-54 Strain Ratcheting Comparison at Element 145 for DM4-2(2) (Fresh Start) .........................123 Figure 4-55 Strain Ratcheting Comparison at Element 154 for DM4-2(2) (Fresh Start) .........................124 Figure 4-56 Strain Ratcheting Comparison at Element 639 for DM4-2(2) (Fresh Start) .........................125 Figure 4-57 Strain Ratcheting Comparison at Element 648 for DM4-2(2) (Fresh Start) .........................126 Figure 4-58 Sequence of Ranges from the Rainflow Counting Method...................................................127 Figure 4-59 Sequence of Ranges from the Simplified Rainflow Counting Method.................................127 Figure 4-60 Horizontal Input Motion and its 5% Response Spectra For US2-1.......................................128 Figure 4-61 Piping System FE Model using Pipe Elements for Ultimate Strength Tests.........................129 Figure 4-62 Displacement D2 Comparison for US2.................................................................................130 Figure 4-63 Displacement D4 Comparison for US2.................................................................................131 ix
Figure 4-64 Acceleration A2 Comparison for US2 ..................................................................................132 Figure 4-65 Nodes and Elements for Strain Measurements For US2-1....................................................133 Figure 4-66 Relative Deformation Histories as Input Motions to Elbow Model for US2-1.....................134 Figure 4-67 Strain Ratcheting Comparison at Element 145 for US2-1 ....................................................135 Figure 4-68 Strain Ratcheting Comparison at Element 154 for US2-1 ....................................................136 Figure 4-69 Strain Ratcheting Comparison at Element 315 for US2-1 ....................................................137 Figure 4-70 Strain Ratcheting Comparison at Element 324 for US2-1 ....................................................138 Figure A-1 Original and Modified Response Spectra for Lindley-Yow Method for US2-1 As-built Dimension and 4% Damping............................................................................................................146 Figure A-2 Broadened Original and Modified Response Spectra for Lindley-Yow Method for US2-1 As-built Dimension and 4% Damping..............................................................................................146 Figure A-3 Original and Modified Response Spectra for Lindley-Yow Method for US2-1 Nominal Dimension and 4% Damping............................................................................................................147 Figure A-4 Broadened Original and Modified Response Spectra for Lindley-Yow Method for US2-1 Nominal Dimension and 4% Damping .............................................................................................147 Figure A-5 Ratio of Reaction Forces using All Data................................................................................148 Figure A-6 Ratio of Reaction Moments using All Data ...........................................................................148 Figure A-7 Ratio of Top Half Significant Reaction Forces ......................................................................149 Figure A-8 Ratio of Top Half Significant Reaction Moments..................................................................149 Figure A-9 Ratio of Reaction Force using All Data (Unbroadened Spectra) ...........................................150 Figure A-10 Ratio of Reaction Forces using All Data (Broadened Spectra) ............................................150 Figure A-11 Ratio of Reaction Moments using All Data (Unbroadened Spectra) ...................................151 Figure A-12 Ratio of Reaction Moments using All Data (Broadened Spectra)........................................151 Figure A-13 Ratio of Top Half Significant Reaction Forces (Unbroadened Spectra) ..............................152 Figure A-14 Ratio of Top Half Significant Reaction Forces (Broadened Spectra) ..................................152 Figure A-15 Ratio of Top Half Significant Reaction Moments (Unbroadened Spectra)..........................153 Figure A-16 Ratio of Top Half Significant Reaction Moments (Broadened Spectra)..............................153 Tables Table 2-1 JNES/NUPEC Large-Scale Piping System Test Load Cases .......................................................7 Table 2-2 DM Test Frequencies and Damping Ratios from Low Level Sine Sweep Tests..........................7 Table 2-3 US Test Frequencies and Damping Ratios from Low Level Sine Sweep Tests..........................7 Table 2-4 DM and US Test Frequencies and Damping Ratios from Seismic Tests .....................................8 Table 3-1 DM2-2 Test Maximum Code Stresses and Margins (Design Dimensions)...............................44 Table 3-2 DM2-2 Test Maximum Code Stresses and Margins (As-Built Dimensions) ............................44 Table 3-3 DM4-2(2) Test Maximum Code Stresses and Margins (Design Dimensions).........................45 Table 3-4 DM4-2(2) Test Maximum Code Stresses and Margins (As-Built Dimensions).......................45 Table 3-5 US2-1 Test Maximum Code Stresses and Margins (Design Dimensions)................................46 Table 3-6 US2-1 Test Maximum Code Stresses and Margins (As-Built Dimensions) .............................46 Table 4-1 Maximum Hoop Strain Ranges for Tests DM4-1, DM4-2(1), DM4-2(2), and US2-1...............73 x
Page 1 and 2: NUREG/CR-6983 BNL-NUREG-81548-2008
Page 3 and 4: Seismic Analysis of Large-Scale Pip
Page 5 and 6: FOREWORD This report documents the
Page 7: Figure 2-7 Model B Simplified Pipin
Page 11 and 12: In the final phase of the test prog
Page 13 and 14: Continued investigation of the subj
Page 15 and 16: 1 INTRODUCTION Prior to the establi
Page 17 and 18: 2 DESCRIPTION OF JNES/NUPEC TEST PR
Page 19 and 20: Photographs of the DM Test Piping a
Page 21 and 22: Design Method Confirmation Test Ult
Page 23 and 24: Stress (N/mm 2 ) Figure 2-1 Monoton
Page 25 and 26: Hoop Strain (%) 18 16 14 12 10 8 6
Page 27 and 28: φ76.3 7.8 1500 Variable Hanger Sma
Page 29 and 30: Figure 2-9 Overview of Design Metho
Page 31 and 32: Figure 2-11 DM Test Nozzle 17
Page 33 and 34: Figure 2-13 DM Test Spring Hanger 1
Page 35 and 36: Figure 2-15 DM Test Accelerometer L
Page 37 and 38: Figure 2-17 DM Test Strain Gage Loc
Page 39 and 40: Figure 2-19 US Test Piping System S
Page 41 and 42: Figure 2-21 US Test Elbow 2 and Add
Page 43 and 44: Figure 2-23 US Test Accelerometer L
Page 45 and 46: Figure 2-25 US Test Strain Gage Loc
Page 47 and 48: Displacem ent(m m ) S train(%) 100
Page 49 and 50: Figure 2-30 US Test Elbow 2 Fatigue
Page 51 and 52: 3 BNL LINEAR ANALYSES AND CODE EVAL
Page 53 and 54: where: PD 2t D + 0S m (3-4) 2I 0 0
Page 55 and 56: limits and specified that stresses
Page 57 and 58: Regulatory Guide 1.61 Revision 0 da
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Code Edition 1993 1993 Table 3-3 DM
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Figure 3-1 Design Method Confirmati
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Acceleration (g) Acceleration (g) 1
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Acceleration (g) 16 14 12 10 8 6 4
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g, and 0.471 g respectively in the
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A simple approach has been taken in
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so as not to prevent ANSYS from fin
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are made with time histories and Fo
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DM4-2(2) (Restart): This analysis c
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The only responses obtained from th
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elements. The final hoop (plastic)
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are somewhat smaller than but in an
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difference in the residual displace
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esponse for the entire time histori
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Figure 4-1 Horizontal and Vertical
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Figure 4-7 Comparison of Baseline-c
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Stress(MPa) Stress (MPa) 600 500 40
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Hoop and Axial Strain (%) 17 16 15
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Figure 4-16 Displacement D2 Compari
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Figure 4-18 Acceleration A2 Compari
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Figure 4-39 Relative Deformation Hi
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Figure 4-47 Strain Ratcheting Compa
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Figure 4-60 Horizontal Input Motion
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described in Sections 4 of this rep
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U.S. Nuclear Regulatory Commission,
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nominal dimensions for the straight
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Figure A-1 Original and Modified Re
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Figure A-5 Ratio of Reaction Forces
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Figure A-9 Ratio of Reaction Force
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Figure A-13 Ratio of Top Half Signi
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NRC FORM 335 U.S. NUCLEAR REGULATOR
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Seismic Analysis of Large-Scale Piping Systems for the JNES ... - NRC

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