*HEADING
 INDIAN  POINT  WITH SPRING SUPPORTS--THREE SUBSTRUCTURE MODEL 
 FIRST SUBSTRUCTURE GENERATION WITH RAYLEIGH DAMPING
**
*NODE
1, 0., 423., -234.96
3, 0., 423., -150.96
5, 0., 435., -138.96
6, 0., 474., -138.96
8, 0., 486., -126.96
10, 0., 486., -75.96
11, 0., 486., -51.96
12, 0., 486., -18.00
13, 0., 486., 9.00
15, 0., 486., 144.5
16, 0., 486., 159.
18, 8.484, 494.484, 171.
19, 8.484,494.484,171.
21, 16.93, 497.96, 171.
22, 19.8125, 497.96 , 171.
23, 29.125 ,497.96, 171.
*NGEN
1,3
8,10
13,15
*NGEN,LINE=C
3,5,1,, 0., 435., -150.96
6,8,1,, 0., 474., -126.96
16,18,1,, 8.484, 494.48, 159.00
19, 21,1,, 16.932, 485.96, 171.00
*NSET,NSET=BOT
1, 
*ELEMENT,TYPE=B31
1,1,2
14,13,14
20,19,20
24,22,23
*ELGEN,ELSET=BEAMS
1,12
14,5
20,3
*MPC
BEAM,18,19
*ELSET,ELSET=SUP1
24, 
BEAMS, 
*ELSET,ELSET=D8
1,2,5,8,9,10,11,12,14,16,22,15,24,
*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=Z1,MASS MATRIX=YES,VISCOUS DAMPING MATRIX=YES,OVERWRITE
*RETAINED NODAL DOFS
1,1,6
2,1,2
4,1,2
7,1,2
10,1,2
11,1,2
14,1,2
15,1,3
19,2,3
22,1,3
23,1,6
*END STEP