*HEADING
 SHALLOW ARCH                
*NODE
1,0.,4.,0.,0.,1.
11,28.,0.,0.,.28,.96
*NGEN,LINE=C
1,11,1,0,0.,-96.
*ELEMENT,TYPE=B21
1,1,2
*ELGEN,ELSET=ARCH
1,10
*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
1, 
*NSET,NSET=ONE
1,
*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