*HEADING
: FOUNDATION TYPE F4  [CPEG4I]
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*NODE,NSET=ALL
 1, 0.,0.
 3, 7.,0.
 7, 3.5,3.5
 9, 7.,3.5
*NODE
 101,0.,0.
*ELEMENT,TYPE=CPEG4I,ELSET=EALL
 1, 1,3,9,7
*SOLID SECTION,MATERIAL=A1,ELSET=EALL,REFNODE=101
 1., 
*MATERIAL,NAME=A1
*ELASTIC
 3.E6, 0.3
*FOUNDATION
 1,F4,300.
*STEP,PERTURBATION
*STATIC
*ENERGY FILE
*OUTPUT,HISTORY,FREQUENCY=1
*ENERGY OUTPUT,VARIABLE=PRESELECT
*NODE FILE
 RF, 
*OUTPUT,FIELD
*NODE OUTPUT
 RF, 
*BOUNDARY
 ALL,1 ,,-0.1
 ALL,2,, 0.1
 101,3,5
*EL PRINT,FREQ=0
*NODE PRINT
 RF, 
*END STEP