*HEADING
 BARREL VAULT  ( 8 X 8 MESH , S3R)     
*PREPRINT,ECHO=YES,MODEL=NO,HISTORY=NO
*NODE,SYSTEM=C,NSET=CORNER
 1,300.,0.,0.,
 9,300.,,300.
 81,300.,40.,
 89,300.,40.,300.
*NGEN,LINE=C,NSET=WALL
 1,81,10
*NGEN,LINE=C,NSET=SYMM
 9,89,10,,,,300.
*NFILL
WALL,SYMM,8,1
*NGEN,NSET=APEX
 1,9
*ELEMENT,TYPE=S3R,ELSET=ROOF1
 1, 1,  2, 12
 2, 1, 12, 11
*ELGEN,ELSET=ROOF
1,8,1,2,8,10,100
2,8,1,2,8,10,100
*ELSET,ELSET=FEW
 1,2,3,4,5,6,7,8
*MATERIAL,NAME=STEEL
*ELASTIC
 3.E6, 
*BOUNDARY
 APEX,YSYMM
 SYMM,ZSYMM
 WALL,1,2
*SHELL SECTION,MATERIAL=STEEL,ELSET=ROOF
 3.0,3
*STEP
 SELF-WEIGHT
*STATIC
*DLOAD
 ROOF,BX,-0.20833
*ENERGY PRINT
*EL PRINT,ELSET=FEW
*EL FILE,ELSET=ROOF1
S, 
E, 
*NODE FILE,NSET=CORNER
U, 
RF, 
*ENERGY FILE
*END STEP