*HEADING
 INDIAN  POINT  WITH SPRING SUPPORTS--THREE SUBSTRUCTURE MODEL 
 SECOND SUBSTRUCTURE GENERATION WITH RAYLEIGH DAMPING
**
*NODE
23,29.125,497.96,171.
25,200.72,497.96,171.
27, 260.72, 497.96, 171.
29, 272.72, 509.96, 171.00
31, 272.72, 569.964, 171.00
33, 280.44, 581.96, 180.19
35, 330.1 , 581.96, 239.3
36, 335.21, 581.96, 245.46
38, 342.91, 593.96, 254.65
39, 342.91 , 628. , 254.65
40, 342.91, 660., 254.65
42, 342.91, 706., 254.65
44, 340.22, 714.48, 256.91
46, 296.57, 771.47, 293.54
48, 282.36, 779.95, 289.80
49, 278.50, 779.95, 285.20
*NGEN
23,25
25,27
29,31
33,35
40,42
44,46
*NGEN,LINE=C
27,29,1,, 260.724, 509.96, 171.00
31,33,1,, 280.44, 569.96, 180.19
36,38,1,, 335.21, 593.96, 245.46
42,44,1,, 333.71, 706.00, 262.37
46,48,1,, 288.85, 771.47, 284.35
*ELEMENT,TYPE=B31
25,23,24
28,25,26
51,48,49
*ELGEN,ELSET=BEAMS
25,2
28,24
*ELSET,ELSET=D8
25,26,28,29,32,33,36,37,38,41,42,43,44,47,48
51, 
*ELSET,ELSET=D8E
30,31,34,35,39,40
45,46,49,50
*BEAM GENERAL SECTION,ELSET=D8 ,SECTION=GENERAL ,DENSITY= .0010691
12.763 , 105.317 , , 105.317 , 210.635
1. , , -1.
27.9E6 , 10.73E6
*DAMPING,ALPHA=1.5
*ELSET,ELSET=D8E
 3, 4, 6, 7,17,18,20,21,
*BEAM GENERAL SECTION,ELSET=D8E,SECTION=GENERAL  ,DENSITY=.0010691
12.763 , 50.439 , , 50.439 , 210.635
1. , , -1.
27.9E6 , 10.73E6
*DAMPING,ALPHA=1.5
**
**
*STEP
*SUBSTRUCTURE GENERATE,TYPE=Z2,MASS MATRIX=YES,VISCOUS DAMPING MATRIX=YES,OVERWRITE
*RETAINED NODAL DOFS
23,1,6
25,2,3
27,2,3
28,2,3
31,2,3
35,1,3
39,1,3
45,1
45,3
49,1,6
*END STEP