*HEADING
: GENERAL FRAME SECTION, TESTING Of FOUNDATION LOADS [FRAME2D]  
*NODE
 1,  0.0, 0.0
11, 75., 0.0
*NGEN,NSET=ALL
 1,11,2
*ELEMENT,TYPE=FRAME2D, ELSET=EALL
1,1,3
2,3,5
3,5,7
4,7,9
5,9,11
*ELSET, ELSET=FOUR
4, 
*FRAME SECTION,SECTION=GENERAL, ELSET=EALL, DENSITY=8000.0E-4
2.387610, 4.309637, 0., 4.309637, 4.3215749
0., 0., -1.
3.E6, 1.1538E6, .001
*BOUNDARY
1, 1, 1
1, 6
11, 1, 1
11, 6
*ELSET, ELSET=XCLUD4, GEN
1, 3, 1
5, 5, 1 
*FOUNDATION 
 FOUR, FY, 1500.  
 XCLUD4, F2, 1500.  
*********************** STEP 1
*STEP, PERTURBATION 
Push the frame into the foundation with pressure load.
*STATIC
*DLOAD
EALL, PY, -1.910088E1 
*EL PRINT
SF,
SEE,
LOADS,
FOUND,
NFORC,  
*OUTPUT,FIELD
*ELEMENT OUTPUT,ELSET=FOUR
SF,
SEE,
LOADS,
NFORC,
*OUTPUT,FIELD
*NODE OUTPUT
U,COORD
RF,
*NODE PRINT
 U,
 RF, 
*OUTPUT,HISTORY,FREQUENCY=1
*ENERGY OUTPUT,VARIABLE=PRESELECT
*END STEP
*********************** STEP 2
*STEP,PERTURBATION
loading same as in 1st step
*STATIC
*DLOAD
EALL, P2, -1.910088E1  
*END STEP