Transcription of レベル2地震動に対する大規模地中構造物の耐震検討
1 37 (2004) 05-1 Keywords : underground structure, level-2 input motion, FEM seismic deformation method, seismic deformation method 1 3 2 2 MMST MMST 2 MMST
2 2 MMST MMST (Multi-Micro Shield Tunneling Method) -1 ( ) RC ( ) 540m MMST -2 ( ) -1 MMST Structural Features RC 05-2 Dc1 3 4 ( -2 ) (Ksm) 2 ( ) 2 I II 2 -3 I II 3 6 (E+F )
3 -1 Material Properties of Soil -2 Investigation Layouts and Geological Profiles (kN/m3) Vs (m/sec) Go (MN/m2) r hmax Ts 140 34 140 38 140 37 140 35 180 53 265 129 200 63 278 130 300 161 300 174
4 Dc2 300 156 395 294 395 310 325 167 390 279 Ksm 580 618 sec cm/sec I 10 II 15 100 85 -3 Design Response Spectrum of Velocity 37 (2004) 05-33. -4 ( )
5 2 1 5 1 2 Ramberg-Osgood ( R-O ) 5( -2 ) II ( GL-79m N-S) -5 4 MMST ( ) RC ( ) ( - ) ( - )
6 5 II -6 Ac2 179mm 1/109 1/85 MMST 2 -4 Procedure of Seismic Design for Cross Section 05-4 -6 5 Results of Ground Response Acceleration Method for Buried Structures (Section-5) 3 - 2 - 1 -5 5 Results of Ground Response Analysis (Section-5) -60-50-40-30-20-100-600 -300 0 300 600 m -60-50-40-30-20-10001020304050 m -60-50-40-30-20-100012345 m +0 1/m M +0 rad M 37 (2004) 05-54.
7 -7 ( ) 2 2 FEM 3 3 FEM 2 3 2 2 -8
8 FEM MMST ( ) RC ( ) 3 -9 -10 -11 I -7 Procedure of Seismic Design for Longitudinal Section -8 ()()()()() + + + + =PbiPsiPaitUbPbitUiPsitUaPaitU22 -8 Evaluation Method of Input ground displacement 05-6 II Dc1 1mm 5.
9 MMST 2 ) 1/85 2 ) ( ) RC ( ) 3 3 1) 1996.
10 2) 2001. 3)Tanaka,M. et al : Huge Underground Tunnel Constructed by Multi-Micro Shield Tunneling, Concrete Structures in the 21st Century, Proceeding of 1st fib Congress, , session3, 15-16, 2002. 4) ( ) 5) 2003. 6) 12 2002. 7) 1992. 8) 57 I 2003. 9) 57 I 2003. -11 Distribution of Axial Tension Strain -9 Division of Fiber model -10 Material Properties of Steel Fiber Element + T1-B-2( I T2-B-2( II)
