*HEADING
 BARREL VAULT  ( 8 X 8 MESH , SC8R)
*PREPRINT,ECHO=YES,MODEL=YES,HISTORY=NO
*NODE,SYSTEM=C,NSET=CORNER
*NGEN,LINE=C,NSET=WALL
*NGEN,LINE=C,NSET=SYMM
*NFILL
 WALL,SYMM,8,1
*NGEN,NSET=APEX
*ELEMENT,TYPE=SC8R,ELSET=ROOF1
*ELGEN,ELSET=ROOF
*MATERIAL,NAME=STEEL
*ELASTIC
 3.E6, 0.0
*BOUNDARY
 APEX,YSYMM
 SYMM,ZSYMM
 WALL,1,2
*SHELL SECTION,MATERIAL=STEEL,ELSET=ROOF,POISSON=ELASTIC
 1.0,
*STEP
 SELF-WEIGHT
*STATIC
 0.1, 1.0
*DLOAD
 ROOF,BX,-0.20833
*ENERGY PRINT
*EL FILE,ELSET=ROOF1
 S,
 E,
*NODE FILE,NSET=CORNER
 U,
 RF,
*NODE PRINT, TOTAL=YES
 RF,
*NODE PRINT
 U,
*ENERGY FILE
*END STEP