求助！框架结构梁板需要耦合吗？？

自己顶一下

哪位大神帮忙看一下模型有没有错误
/PREP7
ET,1,BEAM188
KEYOPT,1,2,1
ET,2,SHELL181
KEYOPT,2,3,2
SECTYPE, 1, BEAM, RECT, , 0
SECOFFSET, USER, 0, 0.25
SECDATA,0.25,0.5
SECTYPE,2,BEAM,RECT
SECDATA,0.5,0.5
SECTYPE,3,SHELL
SECDATA,0.1
SECOFFSET,TOP
MP,EX,1,3.0E10
MP,PRXY,1,0.2
MP,DENS,1,2500

k,1,-9,-6,0
K,2,-3,-6,0
K,3,3,-6,0
K,4,9,-6,0
K,5,-9,0,0
K,6,-3,0,0
K,7,3,0,0
K,8,9,0,0
K,9,-9,6,0
K,10,-3,6,0
K,11,3,6,0
K,12,9,6,0
KGEN,11,ALL,,,0,0,3.6
*DO,J,0,29,1
*DO,I,13+J*4,15+J*4,1
L,I,I+1
*ENDDO
*ENDDO
*DO,J,1,10,1
*DO,I,1+J*12,4+J*12,1
L,I,I+4
L,I+4,I+8
*ENDDO
*ENDDO
*DO,I,1,12,1
L,I,I+12
L,I+12,I+24
L,I+24,I+36
L,I+36,I+48
L,I+48,I+60
L,I+60,I+72
L,I+72,I+84
L,I+84,I+96
L,I+96,I+108
L,I+108,I+120
*ENDDO
A,13,16,24,21
A,25,28,36,33
A,37,40,48,45
A,49,52,60,57
A,61,64,72,69
A,73,76,84,81
A,85,88,96,93
A,97,100,108,105
A,109,112,120,117
A,121,124,132,129
lsel,s,loc,z,3.6
lsel,a,loc,z,7.2
lsel,a,loc,z,10.8
lsel,a,loc,z,14.4
lsel,a,loc,z,18
lsel,a,loc,z,21.6
lsel,a,loc,z,25.2
lsel,a,loc,z,28.8
lsel,a,loc,z,32.4
lsel,a,loc,z,36
latt,1,,1,,,,1
LESIZE,ALL,1
LMESH,ALL
ALLSEL,ALL
lsel,U,loc,z,3.6
lsel,U,loc,z,7.2
lsel,U,loc,z,10.8
lsel,U,loc,z,14.4
lsel,U,loc,z,18
lsel,U,loc,z,21.6
lsel,U,loc,z,25.2
lsel,U,loc,z,28.8
lsel,U,loc,z,32.4
lsel,U,loc,z,36
LATT,1,,1,,,,2
LESIZE,ALL,,,10
LMESH,ALL
ASEL,ALL,,,
AATT,1,,2,,3,
AESIZE,ALL,1
AMESH,ALL