DEVELOPMENT OF SEISMIC ISOLATION SYSTEM IN VERTICAL DIRECTION

Transcription

1 JNC TN

2 T Inquiries about copyright and reproduction should be addressed to: Technical Cooperation Section, Technology Management Division, Japan Nuclear Cycle Development Institute 4-49 Muramatsu, Tokai-mura, Naka-gun, Ibaraki , Japan. $$M HM 5 ;U$ &$Mf (Japan Nuclear Cycle Development Institute) 1999

3

4 JNC TN April, DEVELOPMENT OF SEISMIC ISOLATION SYSTEM IN VERTICAL DIRECTION Report No.9 Horizontal Dynamic Tests of A common Deck Isolation Structure Makoto OHOKA* and Morito HORIKIRI** Abstract A structure concept of vertical seismic isolation system which uses a common deck and a set of large dish springs was created in past studies. In this report, a series of dynamic tests on a small scale model of a common deck isolation structure were performed. The model was excited by random and seismic waves in the horizontal direction and 2-D excitation, horizontal and vertical, in order to identify the characteristics of isolation effect. The tests results are summarized as below. 1) This structure has three vibration mode. The second mode is rocking. 2) Rocking frequency depends on the excitation, for this structure has dish spring which contact with cylinders. Rocking damping varies from 2 to 8%. 3) Each mode's response peak frequency to 2-D(horizontal and vertical) excitation is almost the same the some to horizontal excitation. Vertical mode damping to 2-D excitation is about three times to horizontal excitation. 4) Isolation effect depends on a characteristics of frequency of input motion. The minimum response is to the Monju design seismic wave, soil shear wave:vs=2000m/sec, natural frequency of horizontal isolation in vertical direction:fv=20hz. A relative displacement is controlled. 5) A rocking angular displacement to 2-D excitation is about 2 times to 1-D excitation(vertical). However, it is about 1.2E-4(rad), sufficiently small for a practical plant. * Community Relations Section, Administration Division, O-arai Engineering Center(OEC), JNC ** Structure Safety Engineering Group, Sodium and Safety Engineering Division, OEC, JNC

5

6 JNC TN List of Tables Table Specification of Common Deck Model 10 Table Similarity Law for Test Devices 10 Table Results of Similarity Law for Test Devices 10 Table Specification of Dish Spring 11 Table Specification of Accelerometer 12 Table Specification of Displacement Transducer (LVDT) 12 Table List of Test Cases (Random Excitation) 13 Table List of Test Cases (Seismic Excitation) (lof3:monjusl,vs=2000m/sec,fv=20hz) 13 Table List of Test Cases (Seismic Excitation) (2 of 3 :Monju SI, Vs=700 m/sec, fv= 10 Hz) 13 Table List of Test Cases (Seismic Excitation) (3 of 3 : Tokachi, Vs=2000 m/sec, fv=20 Hz) 13 Table Results of Random Excitation -Longitudinal Response 400gal- 36 Table Results of Random Excitation -Long+Vert Response 400gal- 37 Table Results of Random Excitation Vertical Response 38 Table Summary of Earthquake Longitudinal Response Tests 39 Table Summary of Earthquake Longitudinal Response Tests Values 40 Table Summary of Earthquake Long+Vert Response Tests 41 Table Summary of Earthquake Long+Vert Response Tests Values 42 Table Summary of Earthquake Longitudinal Response Tests 43 Table Summary of Earthquake Longitudinal Response Tests Values 44 Table Summary of Earthquake Long+Vert Response Tests 45 Table Summary of Earthquake Long+Vert Response Tests Values 46 Table Summary of Earthquake Longitudinal Response Tests 47 Table Summary of Earthquake Longitudinal Response Tests Values 48 Table Summary of Earthquake Long+Vert Response Tests 49 Table Summary of Earthquake Long+Vert Response Tests Values 50 Table Summary of Earthquake Vertical Response Tests Values MONJU : Vs=2000 m/sec, fv=20 Hz 51 Table Summary of Earthquake Vertical Response Tests Values MONJU: Vs=700 m/sec, fv= 10 Hz 52 Table Summary of Earthquake Vertical Response Tests Values TOKACHI: Vs=2000 m/sec, fv=20 Hz 53

7 JNC TN List of Table (cont'd) Table Properties of Longitudinal 74 Table Stiffness of Rotation 75 Table Eigen Values Analysis Cases 78 Table Constants of Analysis Model 78 Table Results of Eigen Values Analysis 79 Table Effective Stiffness of Analysis Model 89 Table Natural Frequency and Mode Description 90 Table A.6.1 Dynamic Properties of Isolation Reactor Building : R/B 106 Table A.6.2 Dynamic Properties of Isolation Containment Vessel: C/V 107 Table A.6.3 Material Properties of Concrete and Steel 108 Table A.7.1 Material Properties of Soil 108 Table A.7.2 Constants of Soil Springs 108 Table A.9.1 Cases of Eigen Values Analysis 109 Table A.9.2 Cases of Response Analysis 109 Table A Results of Eigenvalue Analysis 110 Table A Maximum Response Acceleration at R/V Support Level Ill - V -

8 JNC TN List of Figures Fig Common Deck Vertical Isolation System 14 Fig Common Deck Test Model 15 Fig Isolation Cut Model 16 Fig Location of Transducer 17 Fig Acceleration and Power Spectrum of White Noise 18 Fig Monju SI Long. Wave (Vs=2000 m/sec,fv20 Hz,fh=0.5 Hz) 19 Fig Monju SI Vert. Wave (Vs=2000 m/sec,fv20 Hz,fh=0.5 Hz) 20 Fig Monju SI Long. Wave (Vs=700 m/sec,m0 Hz,fh=0.5 Hz) 21 Fig Monju SI Vert. Wave (Vs=700 m/sec ; fvl0 Hz,fh=0.5Hz) 22 Fig Tokachi Long. Wave (Vs=2000 m/sec,fv20 Hz,fh=0.5 Hz) 23 Fig Tokachi Vert. Wave (Vs=2000 m/sec,fv20 Hz,fh=0.5 Hz) 24 Fig Rocking Mode Concept 54 Fig Transfer Function of Long Test: {(AZ02+AZ04)-(AZ08+AZ06)}/2Ll 55 Fig Transfer Function of Long Test: AX30/L4 56 Fig Mode Shape (Mode#l) 57 Fig Mode Shape (Mode#2) 58 Fig Transfer Function of Vert Test: TOTAL (Case#Rl-5) 59 Fig Transfer Function of Long+Vert Test: TOTAL 60 Fig Transfer Function of Long+Vert Test: {(AZ02+AZ04)-(AZ08+AZ06)}/2Ll 61 Fig Transfer Function of Long+Vert Test: AX30/L4 62 Fig Comparison of Rocking Response (red) : rms Values 63 Fig Comparison of Maximum Vertical Displacement at Deck : rms Values 64 Fig Comparison of Maximum Horizontal Displacement at R/V : rms Values 65 Fig Comparison of Longitudinal Response Acceleration : rms Values 66 Fig Comparison of Vertical Response Acceleration : MAX Values 67 Fig Comparison of Vertical Response Acceleration : rms Values 68 Fig Comparison of Vertical Response Displacement: MAX Values 69 Fig Comparison of Vertical Response Displacement: rms Values 70 Fig Location of Isolation Devices 76 Fig ModeShape#l 80 Fig ModeShape#2 81 Fig ModeShape#3 82 Fig ModeShape#4 83 Fig ModeShape#5 84 Fig Analysis Model 91 - VI -

9 JNC TN List of Figures (Cont'd) Fig. A.2.1 Original Input Wave at Analysis Model: MONJU SI 112 Fig. A.2.2 Original Input Wave at Analysis Model: TOKACHI 113 Fig. A.10.1 Mode Shape Case#E-l : Fixed Base 114 Fig. A.10.2 Mode Shape Case#E-2 : SSI (Vs=700m/sec) w/o Isolation 115 Fig. A Mode Shape Case#E-3 : SSI (Vs=2000m/sec) w/o Isolation 116 Fig. A.10.4 Mode Shape Case#E4 : Isolation (fh=0.5hz) w/o SSI 117 Fig. A.10.5 Mode Shape Case#E-5 : Isolation (fh=0.5hz) + SSI (Vs=700m/sec) 118 Fig. A.10.6 Mode Shape Case#E-6 : Isolation (fh=0.5hz) + SSI (Vs=2000m/sec) 119 Fig. A.ll.l Comparison of Time History 120 Fig. A.11.2 Comparison of Time History 121 Fig. A.11.3 Comparison of Time History 122 Fig. A.11.4 Comparison of Time History 123 Fig. A.11.5 Comparison of Floor Response Spectrum 124 Fig. A.11.6 Comparison of Floor Response Spectrum 125 Fig. A.11.7 Comparison of Floor Response Spectrum 126 Fig. A.11.8 Comparison of Floor Response Spectrum 127 Fig. B.I.I Transfer Function of Long Test: {(AZ12+AZ14)-(AZ18+AZ16)}/2L2 135 Fig. B.1.2 Transfer Function of Long Test: (AZ13+AZ17)/L3 136 Fig. B.1.3 Transfer Function of Long Test: AZ Fig. B.1.4 Transfer Function of Long Test: AZ Fig. B. 1.5 Transfer Function of Long Test: AZ Fig. B. 1.6 Transfer Function of Long Test: AZ Fig. B.1.7 Transfer Function of Long Test: AZ Fig. B.1.8 Transfer Function of Long+Vert Test: {(AZ12+AZ14)-(AZ18+AZ16)}/2L2 142 Fig. B.1.9 Transfer Function of Long+Vert Test: (AZ13+AZ17)}/L3 143 Fig. B.I.10 Transfer Function of Long+Vert Test: AZ Fig. B.I.11 Transfer Function of Long+Vert Test: AZ Fig. B.I.12 Transfer Function of Long+Vert Test: AZ Fig. B.I.13 Transfer Function of Long+Vert Test: AZ Fig. B.I.14 Transfer Function of Long+Vert Test: AZ Fig. B.I.15 Transfer Function of Long+Vert Test: AZ Fig. B.I.16 Transfer Function of Long+Vert Test: AZ Fig. B.I.17 Transfer Function of Long+Vert Test: AZ Fig. B.I.18 Transfer Function of Long+Vert Test: AZ06 152

10 JNC TN List of Figures (Cont'd) Fig. B.I.19 Transfer Function of Long+Vert Test: AZ Fig. B.1.20 Transfer Function of Long+Vert Test: ISOALL 154 Fig. B.2.1 Comparison of Time-History : Case#Sl Fig. B.2.2 Comparison of Time-History : Case#Sl Fig. B.2.3 Comparison of Time-History : Case#Sl Fig. B.2.4 Comparison of Time-History : Case#Sl-ll 158 Fig. B.2.5 Comparison of Time-History : Case#Sl-ll 159 Fig. B.2.6 Comparison of Time-History : Case#Sl-ll 160 Fig. B.2.7 Comparison of Time-History : Case#Sl Fig. B.2.8 Comparison of Time-History : Case#Sl Fig. B.2.9 Comparison of Time-History : Case#Sl Fig. B.2.10 Comparison of Time-History : Case#S Fig. B.2.11 Comparison of Time-History : Case#S Fig. B.2.12 Comparison of Time-History : Case#S Fig. B.2.13 Comparison of Time-History : Case#S Fig. B.2.14 Comparison of Time-History : Case#S Fig. B.2.15 Comparison of Time-History: Case#S Fig. B.2.16 Comparison of Time-History : Case#S Fig. B.2.17 Comparison of Time-History : Case#S Fig. B.2.18 Comparison of Time-History : Case#S Fig. B.2.19 Comparison of Time-History : Case#S Fig. B.2.20 Comparison of Time-History : Case#S Fig. B.2.21 Comparison of Time-History : Case#S Fig. B.2.22 Comparison of Time-History : Case#S Fig. B.2.23 Comparison of Time-History : Case#S Fig. B.2.24 Comparison of Time-History : Case#S Fig. B.2.25 Comparison of Time-History : Case#S Fig. B.2.26 Comparison of Time-History : Case#S Fig. B.2.27 Comparison of Time-History : Case#S Fig. B.2.28 Comparison of Time-History :Case#Sl Fig. B.2.29 Comparison of Time-History :Case#S Fig. B.2.30 Comparison of Time-History :Case#Sl Fig. B.2.31 Comparison of Time-History :Case#S Fig. B.2.32 Comparison of Time-History :Case#S

11 JNC TN List of Figures (Cont'd) Fig. B.2.33 Comparison of Time-History : Case#Sl Fig. B.2.34 Comparison of Time-History : Case#Sl Fig. B.2.35 Comparison of Time-History :Case#Sl Fig. B.2.36 Comparison of Time-History :Case#Sl Fig. B.2.37 Comparison of Time-History :Case#Sl Fig. B.2.38 Comparison of Time-History : Case#Sl Fig. B.2.39 Comparison of Time-History : Case#Sl Fig. B.2.40 Comparison of Time-History : Case#S Fig. B.2.41 Comparison of Time-History : Case#S Fig. B.2.42 Comparison of Time-History :Case#S Fig. B.2.43 Comparison of Time-History : Case#S Fig. B.2.44 Comparison of Time-History : Case#S Fig. B.2.45 Comparison of Time-History : Case#S Fig. B.2.46 Comparison of Time-History: Case#S Fig. B.2.47 Comparison of Time-History : Case#S Fig. B.2.48 Comparison of Time-History : Case#S Fig. B.2.49 Comparison of Time-History : Case#S Fig. B.2.50 Comparison of Time-History : Case#S Fig. B.2.51 Comparison of Time-History : Case#S Fig. B.2.52 Comparison of Time-History : Case#S Fig. B.2.53 Comparison of Time-History : Case#S Fig. B.2.54 Comparison of Time-History : Case#S Fig. B.2.55 Comparison of Time-History : Case#S Fig. B.2.56 Comparison of Time-History : Case#S Fig. B.2.57 Comparison of Time-History : Case#S Fig. B.2.58 Comparison of Time-History : Case#S Fig. B.2.59 Comparison of Time-History : Case#S Fig. B.2.60 Comparison of Time-History : Case#S Fig. B.2.61 Comparison of Time-History : Case#S Fig. B.2.62 Comparison of Time-History : Case#S Fig. B.2.63 Comparison of Time-History : Case#S Fig. B.2.64 Comparison of Spectrum : Case#Sl Fig. B.2.65 Comparison of Spectrum : Case#Sl Fig. B.2.66 Comparison of Spectrum :Case#Sl

12 JNC TN List of Figures (Cont'd) Fig. B.2.67 Comparison of Spectrum :Case#Sl Fig. B.2.68 Comparison of Spectrum : Case#Sl Fig. B.2.69 Comparison of Spectrum : Case#Sl Fig. B.2.70 Comparison of Spectrum : Case#Sl-ll 224 Fig. B.2.71 Comparison of Spectrum :Case#Sl-ll 225 Fig. B.2.72 Comparison of Spectrum :Case#Sl-ll 226 Fig. B.2.73 Comparison of Spectrum :Case#Sl-ll 227 Fig. B.2.74 Comparison of Spectrum :Case#Sl-ll 228 Fig. B.2.75 Comparison of Spectrum : Case#Sl-ll 229 Fig. B.2.76 Comparison of Spectrum : Case#Sl Fig. B.2.77 Comparison of Spectrum :Case#Sl Fig. B.2.78 Comparison of Spectrum :Case#Sl Fig. B.2.79 Comparison of Spectrum : Case#Sl Fig. B.2.80 Comparison of Spectrum :Case#Sl Fig. B.2.81 Comparison of Spectrum :Case#Sl Fig. B.2.82 Comparison of Spectrum : Case#S Fig. B.2.83 Comparison of Spectrum : Case#S Fig. B.2.84 Comparison of Spectrum : Case#S Fig. B.2.85 Comparison of Spectrum : Case#S Fig. B.2.86 Comparison of Spectrum : Case#S Fig. B.2.87 Comparison of Spectrum : Case#S Fig. B.2.88 Comparison of Spectrum : Case#S Fig. B.2.89 Comparison of Spectrum : Case#S Fig. B.2.90 Comparison of Spectrum : Case#S Fig. B.2.91 Comparison of Spectrum : Case#S Fig. B.2.92 Comparison of Spectrum : Case#S Fig. B.2.93 Comparison of Spectrum : Case#S Fig. B.2.94 Comparison of Spectrum : Case#S Fig. B.2.95 Comparison of Spectrum : Case#S Fig. B.2.96 Comparison of Spectrum : Case#S Fig. B.2.97 Comparison of Spectrum : Case#S Fig. B.2.98 Comparison of Spectrum : Case#S Fig. B.2.99 Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S X -

13 JNC TN List of Figures (Cont'd) Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum: Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum :Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum :Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum: Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl-14 --^SO Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum :Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl XI -

14 JNC TN List of Figures (Cont'd) Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#Sl Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S XH -

15 JNC TN List of Figures (Cont'd) Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum: Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S Fig. B Comparison of Spectrum : Case#S

16 JNC TN List of Photos Photo Common-deck Model on DST 25 XIV -

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352