*HEADING
: NAFEMS TEST NL7: LEE's FRAME BUCKING PROBLEM, 16 B22 ELEMENTS
*NODE
 1, 0.  ,0.
17, 0.  ,1.2
21, 0.24,1.2
33, 1.2 ,1.2
*NGEN
1,17
17,21
21,33
*NSET,NSET=N21
21,
*ELEMENT,TYPE=B22
1, 1,2,3
*ELGEN,ELSET=BEAMS
1, 16,2,1
*BEAM GENERAL SECTION,ELSET=BEAMS,SECT=RECT
0.03,0.02
0.,0.,-1.
71.74E9,
** 
*STEP,NLGEOM,INC=200
*STATIC,RIKS
.1,1.,,2.,31.887
*BOUNDARY
1, 1,2
33,1,2
*CLOAD
21,2,-996.389
*NODE PRINT,NSET=N21
U,CF
*EL PRINT,F=0
*NODE FILE,NSET=N21
U,CF
*EL FILE,F=0
*ENDSTEP