*HEADING
  TEST ALPHA DAMPING ON DIRECT INT.---BEAM GENERAL SECTION 
*NODE,NSET=ONE
1,0.,0.
*NODE,NSET=TWO
2,10.,0.
*ELEMENT,TYPE=B31 ,ELSET=TRUSS
1,1,2
*BEAM GENERAL SECTION,ELSET=TRUSS,SECTION=RECT,DENSITY=317.
1. ,1.
0.,0.,-1
1E7, 
*DAMPING,ALPHA=1.00472
*STEP
*STATIC
*BOUNDARY
1,1,6
2,2,6
2,1,,1.
*PRINT,RESIDUAL=NO,FREQUENCY=5
*EL FILE,FREQUENCY=25
SF, 
*EL PRINT,FREQUENCY=25,SUMMARY=NO
SF1, 
*NODE FILE,NSET=ONE,FREQUENCY=5
RF, 
*NODE FILE,NSET=TWO,FREQUENCY=5
U, 
*NODE PRINT,FREQUENCY=5,SUMMARY=NO
U1,V1,A1,RF1
*OUTPUT, FIELD, FREQUENCY=999
*NODE OUTPUT, NSET=ONE
RF,
*NODE OUTPUT, NSET=TWO
U,
*ELEMENT OUTPUT, ELSET=TRUSS
SF,
*OUTPUT, HISTORY, FREQUENCY=5
*NODE OUTPUT, NSET=ONE
RF,
*NODE OUTPUT, NSET=TWO
U,
*ELEMENT OUTPUT, ELSET=TRUSS
SF,
*END STEP
*STEP,INC=300
*DYNAMIC,ALPHA=0.,DIRECT
.01,2.5
*BOUNDARY,OP=NEW
1,1,3
2,2,3
*END STEP