*HEADING
 SHALLOW ARCH
*NODE
*NGEN,LINE=C
*ELEMENT,TYPE=B21
*ELGEN,ELSET=ARCH
*SURFACE, NAME=SURFACE
 ARCH, SPOS
*BEAM SECTION,SECTION=RECT,ELSET=ARCH,MATERIAL=A1
1.,2.
*MATERIAL,NAME=A1
*ELASTIC
1.E7,.25
*BOUNDARY
1,1
1,6
11,1,6
*ELSET,ELSET=ONE
*NSET,NSET=ONE
*RESTART,WRITE,FREQUENCY=1
*STEP,NLGEOM
LOADING
*STATIC,RIKS
.05,1.,0.,.2,.4
*DSLOAD
 SURFACE,P,5000.
*PRINT,RESIDUAL=NO
*EL PRINT,ELSET=ONE,SUMMARY=NO
E,
LOADS,
*NODE PRINT,SUMMARY=NO
U,RF
*EL FILE,ELSET=ONE
LOADS,
S,
E,
*NODE FILE,NSET=ONE
U,
*MONITOR, NODE=1, DOF=2
*END STEP