*HEADING
 EARTHQUAKE ANALYSIS  B21
*NODE
*NSET,NSET=ENDS
*NGEN
*ELEMENT,TYPE=B21
*ELGEN,ELSET=EALL
*MATERIAL,NAME=A1
*ELASTIC
30.E6,
*DENSITY
 .000728,
*BEAM SECTION,SECTION=RECT,MATERIAL=A1,ELSET=EALL
1. , 2.
*BOUNDARY
11, 1, 6
*STEP
*FREQUENCY, eigensolver=lanczos, SIM=NO
10, ,
*EL PRINT,FREQUENCY=0
*NODE PRINT
U,
*NODE FILE
U,
*OUTPUT,FIELD,OP=NEW
*NODE OUTPUT
U,
*OUTPUT,HISTORY,OP=NEW
*NODE OUTPUT, NSET=ENDS
U,
*END STEP