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1、. 第73题3,4,3,3,3,00.0,0.0,0,0,0 1.0,0.0,1,2,32.0,0.0,0,0,01.0,-4.0,0,0,01,2,4.2E+05,6.3E+022,3,4.2E+05,6.3E+024,2,4.2E+05,6.3E+021.0,20.02.0,-20.03.0,40.0 NE= 3 NJ= 4 N= 3 NW= 3 NPJ= 3 NPF= 0 NODE X Y XX YY ZZ 1 .0000 .0000 0 0 0 2 1.0000 .0000 1 2 3 3 2.0000 .0000 0 0 0 4 1.0000 -4.0000 0 0 0 ELEMEN
2、T NODE-I NODE-J EA EI 1 1 2 .420000E+06 .630000E+03 2 2 3 .420000E+06 .630000E+03 3 4 2 .420000E+06 .630000E+03 CODE PX-PY-PM 1. 20.0000 2. -20.0000 3. 40.0000 NODE U V CATA 1 .000000E+00 .000000E+00 .000000E+00 2 .257903E-04 -.166500E-03 .705575E-02 3 .000000E+00 .000000E+00 .000000E+00 4 .000000E+00 .000000E+00 .000000E+00 ELEMENT N Q M 1 N1= -10.8319 Q1= -25.4120 M1= 8.2609 N2= 10.8319 Q2= 25.4120 M2= 17.1511 2 N1= 10.8319 Q1= -27.9295 M1= 18.4099 N2= -10.8319 Q2= 27.9295 M2= 9.5196 3 N1= 17.4825 Q1= -1.6639 M1= 2.2165 N2= -17.4825 Q2= 1.6639 M2= 4.4390；.