ANSYS计算下面混凝土梁时总是关闭，求大神解释，小弟感激不尽。命令流如下：

!定义材料属性
/TITLE,RC_BEAM
/PREP7
ET,1,SOLID65
ET,2,LINK180
R,1,28.3E-6
R,2,113.1E-6
R,3,314.1E-6
R,4,
MP,EX,1,2.55E10
MP,PRXY,1,0.3
TB,CONC,1,1,9
TBDATA,1,0.3,0.55,1.5E6,-1
TB,KINH,1,1,8
TBTEMP,0
TBPT,,0.0001,0.936E6
TBPT,,0.0003,2.664E6
TBPT,,0.0006,4.896E6
TBPT,,0.0009,6.696E6
TBPT,,0.0012,8.064E6
TBPT,,0.0016,9.216E6
TBPT,,0.002,9.6E6
TBPT,,0.0033,5.544E6
MP,EX,2,2.1E11
MP,PRXY,2,0.3
TB,BKIN,2,1,2
TBDATA,1,2.1E8
!建立有限元模型
BLC4,,,3,0.4,0.2
LSEL,S,LENGTH,,3
LESIZE,ALL,0.05
LSEL,INVE
LESIZE,ALL,0.025
ALLSEL,ALL
VATT,1,4,1
MSHAPE,0,3D
MSHKEY,1
VMESH,ALL
!!创建钢筋单元
TYPE,2
REAL,1
MAT,2
ESYS,0
NSEL,S,LOC,X,0.15
NPLOT
/PNUM,NODE,1
*DO,i,3349,3354,1
E,i,i+1
*ENDDO
*DO,i,3349,3440,7
E,i,i+7
*ENDDO
*DO,i,3447,3452,1
E,i,i+1
*ENDDO
*DO,i,3355,3446,7
E,i,i+7
*ENDDO
ESEL,S,REAL,,1
EPLOT,ALL
EGEN,19,315,ALL,,,,,,,,0.15
TYPE,2
REAL,2
MAT,2
ESYS,0
*DO,i,3453,8808,315
E,i,i+315
*ENDDO
*DO,i,3447,8487,315
E,i,i+315
*ENDDO
E,3348,3453
E,9123,9228
ESEL,S,REAL,,2
EGEN,2,-6,ALL,,,,,,,,,,-0.15
TYPE,2
REAL,3
MAT,2
ESYS,0
*DO,i,3349,8704,315
E,i,i+315
*ENDDO
E,3244,3349
E,9019,9124
ESEL,S,REAL,,3
EGEN,3,3,ALL,,,,,,,,,,0.075
ESEL,S,TYPE,,2
/PNUM,NODE,0
EPLOT
ALLSEL,ALL
NUMMRG,ALL,,,,LOW
NUMCMP,ALL
EPLOT
!施加约束和荷载
NSEL,S,LOC,X,-0.01,0.01
NSEL,R,LOC,Y,0.19,0.21
D,ALL,ALL
ALLSEL,ALL
NSEL,S,LOC,X,2.99,3.01
NSEL,R,LOC,Y,0.19,0.21
D,ALL,ALL
ALLSEL,ALL
NSEL,S,LOC,Y,0.39,0.41
SF,ALL,PRES,50000
/PSF,PRES,NORM,2,0,1
FINISH
！非线性求解
/SOL
ANTYPE,0 !指定分析类型
NLGEOM,1 !打开大变形开关
NROPT,FULL !指定求解方法
EQSLV,SPAR,,0
TIME,1 !载荷步结束时间
NSUBST,50,100,25,ON!设定子步数
AUTOTS,ON !打开自动时间步长
KBC,0 !逐级递增加载
CNVTOL,U,,0.03,0 !设置收敛准则
NEQIT,50 !平衡迭代的次数
PRED,ON,,ON
OUTRES,ALL,ALL !输出所有子步数
SOLVE