*HEADING
: RECTANGULAR FRAME SECTION  (2x2 CROSS SECTION)
                 AQUA LOADING [FRAME2D]
*NODE
 1,  0.0, 0.0
11, 75., 0.0
*NGEN,NSET=ALL
 1,11,2
*AQUA
 -100., 50., 10.0, 8000.0E-6
 -30., 0., 0., -100.
 -30., 0., 0., 50.
*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=RECT, ELSET=EALL, DENSITY=8000.0E-4
2., 2.
0., 0., -1.
3.E6, 1.1538E6, .001
*BOUNDARY
1, 1, 2
1, 6
*STEP,PERTURBATION
*STATIC
*CLOAD
11,2,25.E-4
*EL PRINT
SF,
SEE,
*EL FILE, ELSET=FOUR
SF,
SEE,
*NODE FILE
 U,COORD
 RF, 
*NODE PRINT
 U,
 RF, 
*ENERGY FILE
*END STEP
*********************** STEP 2
*STEP,PERTURBATION
*STATIC
*DLOAD
EALL, GRAV,10.0E-4, 0., -1., 0.
*END STEP
*********************** STEP 3
*STEP,PERTURBATION
*STATIC
*DLOAD
EALL, PY, -3.2E-3
*END STEP
*********************** STEP 4
*STEP,PERTURBATION
*STATIC
*DLOAD
EALL, P2, -3.2E-3
*END STEP
*********************** STEP 5
*STEP
 compressive axial load 
*STATIC
*DLOAD
EALL, PX, -3.2E-3
*EL PRINT
SF,
SEE,
*EL FILE, ELSET=FOUR
SF, 
SEE,
*NODE FILE
 U,COORD
 RF,
*NODE PRINT
 U,
 RF, 
*ENERGY FILE
*END STEP
*********************** STEP 6
*STEP,PERTURBATION
 aqua: FDT loading
*STATIC
*DLOAD
EALL, FDT, 1.E-4, 2.8294212, 1.,
**         Mag, D,        Ct,
*EL PRINT
SF,
SEE,
*EL FILE, ELSET=FOUR
SF,
SEE,
*NODE FILE
 U,COORD
 RF,
*NODE PRINT
 U,
 RF, 
*ENERGY FILE
*END STEP
*********************** STEP 7
*STEP, NLGEOM
 aqua: FD2 loading
 similar to 5th step.  But the uniform load 
 causing the axial compression is now specified 
 as CLOADs at the element junctions.
*STATIC
*DLOAD
EALL, FD2, 1.E-4, 13.3333333, 10.,  
**         Mag, delA,        C,
*END STEP