*HEADING
: FOUNDATION TYPE F  [STRI65]
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*NODE,NSET=ALL
 1,0.,0.
 3,7.,0.
 7,0.,7.
 9,7.,7.
 5,3.5,3.5
*NGEN,NSET=ALL
 1,3
 7,9
 1,7,3
 3,9,3
*NSET,NSET=BOUNDARY,GENERATE
 1,4
 6,9
*ELEMENT,TYPE=STRI65, ELSET=EALL
    1,     1,     3,     9,     2,     6,     5
50001,     1,     9,     7,     5,     8,     4
*MATERIAL,NAME=A1
*ELASTIC
 3.E+6,0.3
*FOUNDATION
 1,F,300.
 50001,F,300.0
*SHELL SECTION,MATERIAL=A1, ELSET=EALL
 2.,3
*STEP,PERTURBATION
*STATIC
*BOUNDARY
 ALL,1,2
 ALL,3,,-0.1
 ALL,4,6
*OUTPUT,HISTORY,FREQUENCY=1
*ENERGY OUTPUT,VARIABLE=PRESELECT
*OUTPUT,FIELD
*ELEMENT OUTPUT
*OUTPUT,FIELD
*NODE OUTPUT
RF,
*EL PRINT,FREQ=0
*NODE PRINT,TOTAL=YES
 RF, 
*END STEP