*HEADING
: FOUNDATION TYPE F2  [B22]
*NODE,NSET=ALL
 1,0.,,,,1.
 2,7.5,,,,1.
 3,15.,,,,1.
*ELEMENT,TYPE=B22, ELSET=EALL
 1,1,2,3
*BEAM SECTION,SECTION=RECT,MATERIAL=A1, ELSET=EALL
 2.,3.
 ,,-1.
 3, 
*MATERIAL,NAME=A1
*ELASTIC
 3.E+6,0.3
*FOUNDATION
 1,F2,300.
*STEP,PERTURBATION
*STATIC
*BOUNDARY
 ALL,1
 ALL,2,,-0.1
 ALL,6
*EL PRINT,FREQ=0
*NODE PRINT
 RF, 
*END STEP