*heading Dynamic Analysis of Plan Frame ** Dimenstions are N,m, Kg *Node, SYSTEM=R, Nset= ALL 1,0,0 7,0,12 8,5,6 9,5,12 14,20,0 12,15,6 13,15,12 20,20,12 *NGEN 1,7,1 8,12,2 9,13,2 14,20,1 *NODE, NSET=supports 1,0,0 14,20,0 ******************************************* *ELEMENT, TYPE=B21, ELSET= COLUMNS 1,1,2 7,14,15 *ELGEN, ELSET=COLUMNS 1,1,,,6,1,1 7,1,,,6,1,1 *ELEMENT, TYPE=B21, ELSET= BEAMS 13,4,8 14,8,10 15,10,12, 16, 12,17 17,7,9 18,9,11 19,11,13 20,13,20 ******************************************* *element, type=mass, elset= Jmass 100,4 101,7 102,17 103,20 ******************************************* *mass,elset=Jmass 5000.0 ******************************************* *beam section, section=rec, elset=Beams, material= Steel 0.2,0.4 *beam section, section=rec, elset=Columns, material= Steel 0.2,0.3 ******************************************* *material, name=Steel *elastic, type=iso 205e9,0.30 *PLASTIC 235.259E+06,0.0 471.9E+06,0.18837 *DENSITY 7.850E+03 *Damping 0.05 ******************************************* *boundary supports,1,2 *AMPLITUDE, NAME=HAMP, INPUT=northbridge-x.txt *BASELINE CORRECTION ******************************************* *STEP, INC=12000, NLGEOM STEP 3 - EARTHQUAKE *DYNAMIC, HAFTOL=1.0E7 0.02, 20.0, 1E-15,0.02 *BOUNDARY,TYPE=ACCELERATION,AMPLITUDE=HAMP supports,1,1,0.01 *monitor, node=20,dof=1 *END STEP