ANSYS有关预应力钢筋的问题

junbo546 发表于 2011-9-4 23:00:57 | 显示全部楼层 | 阅读模式
如题,ANSYS中模拟预应力钢筋有降温法和初应变两种方法,但是,比如说一根曲线钢束(零号块的腹板束),我想要在ANSYS中模拟实际钢束的平弯或者竖弯,怎么在ANSYS中实现?请高手给予解答,有例子更好了,便于以后交流!在这里先谢谢了
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ldhltw 发表于 2011-9-5 07:48:15
实现曲线筋,可以通过实体切块的形式来实现,比较麻烦一点
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szg1999 发表于 2011-9-5 08:47:34
利用Solid65单元与Link8分析预应力混凝土结构

/prep7

ET,1,solid65
et,2,link8
et,3,solid45
keyopt,1,7,1

r,1,4,0.01744,0,0        
r,2,2,0.056,0,0           
r,3,4,0.01,90,0           
mp,ex,1,3.25e10
mp,nuxy,1,0.2
mp,dens,1,2500
tb,concr,1,1
tbtemp,0
tbdata,,0.5,0.95,3.5e6,-1
tb,miso,1,1,12         !
tbpt,,0.00040985,13.32e6
tbpt,,0.0006768,21.312e6
tbpt,,0.0010152,27.972e6
tbpt,,0.0013536,32e6
tbpt,,0.0015228,33e6
tbpt,,0.001692,33.3e6
tbpt,,0.0018612,32.86e6
tbpt,,0.0021996,30.2e6
tbpt,,0.002538,26.7e6
tbpt,,0.0028764,23.32e6
tbpt,,0.0032148,20.4e6
tbpt,,0.0037224,16.9e6


mp,EX,2,2.0e11
mp,PRXY,2,.27
tb,bkin,2
tbtemp,0
tbdata,,407e6,0


mp,ex,3,1.95e11
mp,prxy,3,0.27
mp,alpx,3,1e-5
tb,bkin,3
tbtemp,0
tbdata,,1465e6,6.633e10
r,4,139.98e-6
r,5
r,6,5,0.0251,0,0           


mp,EX,4,2.1e11
mp,PRXY,4,.27
tb,bkin,4
tbtemp,0
tbdata,,275e6,0



mp,EX,5,2.0e11
mp,PRXY,5,.27
tb,bkin,5
tbtemp,0
tbdata,,366e6,0









/prep7
local,11,1,1139.971e-3,7296.1857e-3
csys,11
*dim,a,,6
*do,i,1,6
a(i)=260.9365+7.9553/5*(i-1)
*enddo
/prep7
*do,i,1,6
k,i,7236.5395e-3,a(i)
*enddo
*do,i,1,5
l,i,i+1
*enddo

local,12,1,1104.1693e-3,5269.1667e-3
csys,12
*dim,b,,2
*do,i,1,2
b(i)=268.8542+2.75/2*i
*enddo
/prep7
*do,i,1,2
k,i+6,5209.2083e-3,b(i)
*enddo
*do,i,1,2
l,i+5,i+6
*enddo

local,13,1,1124.814e-3,4446.1271e-3
csys,13
*dim,c,,5
*do,i,1,5
c(i)=271.6356+13.2296/5*i
*enddo
/prep7
*do,i,1,5
k,i+8,4385.9141e-3,c(i)
*enddo
*do,i,1,5
l,i+7,i+8
*enddo

local,14,1,2500e-3,-723.4697e-3
csys,14
*dim,d,,5
*do,i,1,5
d(i)=105.0391-30.0783/5*i
*enddo
/prep7
*do,i,1,5
k,i+13,963.4697e-3,d(i)
*enddo
*do,i,1,5
l,i+12,i+13
*enddo

local,15,1,3875.1859e-3,4446.1271e-3
csys,15
*dim,e,,5
*do,i,1,5
e(i)=255.1348+13.2296/5*i
*enddo
/prep7
*do,i,1,5
k,i+18,4385.9141e-3,e(i)
*enddo
*do,i,1,5
l,i+17,i+18
*enddo

local,16,1,3895.8307e-3,5269.1667e-3
csys,16
*dim,f,,2
*do,i,1,2
f(i)=268.3958+2.75/2*i
*enddo
/prep7
*do,i,1,2
k,i+23,5209.2083e-3,f(i)
*enddo
*do,i,1,2
l,i+22,i+23
*enddo

local,17,1,3860.029e-3,7296.1857e-3
csys,17
*dim,g,,5
*do,i,1,5
g(i)=271.1083+7.9553/5*i
*enddo
/prep7
*do,i,1,5
k,i+25,7236.5395e-3,g(i)
*enddo
*do,i,1,5
l,i+24,i+25
*enddo


lsel,s,,,1,29,1  
latt,3,4,2  
bfl,all,temp,-142000*0.8/(139.98*1.95)   


allsel,all
lsel,s,,,1,29,1,
lesize,all,,,1
lmesh,all


/prep7
csys,0
k,101,0,0,0.075
k,102,0,0,-0.075
k,103,0,0.06,-0.075
k,104,0,0.06,0.075
k,105,0,0.24,0.075
k,106,0,0.24,-0.075
k,107,0,0.3,-0.075
k,108,0,0.3,0.075


kgen,2,101,108,1,1,0,0,100
kgen,2,201,208,1,0.25,0,0,100
kgen,2,301,308,1,1,0,0,100
kgen,2,401,408,1,0.5,0,0,100
kgen,2,501,508,1,1,0,0,100
kgen,2,601,608,1,0.25,0,0,100
kgen,2,701,708,1,1,0,0,100
a,101,102,103,104
a,103,104,105,106
a,105,106,107,108
a,201,202,203,204
a,203,204,205,206
a,205,206,207,208
a,301,302,303,304
a,303,304,305,306
a,305,306,307,308
a,401,402,403,404
a,403,404,405,406
a,405,406,407,408
a,501,502,503,504
a,503,504,505,506
a,505,506,507,508
a,601,602,603,604
a,603,604,605,606
a,605,606,607,608
a,701,702,703,704
a,703,704,705,706
a,705,706,707,708
a,801,802,803,804
a,803,804,805,806
a,805,806,807,808
vext,1,3,1,-0.02,0,0
vext,1,3,1,1,0,0
vext,4,6,1,0.25,0,0
vext,7,9,1,1,0,0
vext,10,12,1,0.5,0,0
vext,13,15,1,1,0,0
vext,16,18,1,0.25,0,0
vext,19,21,1,1,0,0
vext,22,24,1,0.02,0,0




vsel,s,,,6,12,3
vatt,1,1,1
vsel,s,,,18,24,3
vatt,1,1,1



vsel,s,,,15
vatt,1,2,1

vsel,s,,,4,10,3
vatt,1,2,1

vsel,s,,,16,22,3
vatt,1,2,1







vsel,s,,,13
vatt,1,6,1

vsel,s,,,5,23,3
vatt,1,3,1




vsel,s,,,1,3,1
vsel,a,,,25,27,1
vatt,2,5,3





allsel,all
vsel,s,,,1,27,1
nsel,u,,,1,30,1


nummrg,all
numcmp,all









lsel,s,,,30,100,10
lsel,a,,,32,102,10
lsel,a,,,35,105,10
lsel,a,,,38,108,10
lesize,all,,,2
allsel,all
lsel,s,,,31,101,10
lsel,a,,,33,103,10
lsel,a,,,37,107,10
lsel,a,,,39,109,10
lesize,all,,,1
allsel,all
lsel,s,,,34,104,10
lsel,a,,,36,106,10
lesize,all,,,6
allsel,all
lsel,s,,,127,201,74
lesize,all,,,1
allsel,all
lsel,s,,,134,182,48
lesize,all,,,5
allsel,all
lsel,s,,,142,174,32
lesize,all,,,2
allsel,all
lsel,s,,,150,166,16
lesize,all,,,5
allsel,all
lsel,s,,,158
lesize,all,,,5

allsel,all
mshape,0,3d
mshkey,1
vmesh,all


k,1001,0,-0.02,0.075
k,1002,0,-0.02,-0.075
k,1003,-0.02,-0.02,-0.075
k,1004,-0.02,-0.02,0.075
a,1001,1002,1003,1004
k,1005,2.45,-0.02,0.075
k,1006,2.45,-0.02,-0.075
k,1007,2.55,-0.02,-0.075
k,1008,2.55,-0.02,0.075
a,1005,1006,1007,1008
k,1009,5,-0.02,0.075
k,1010,5,-0.02,-0.075
k,1011,5.02,-0.02,-0.075
k,1012,5.02,-0.02,0.075
a,1009,1010,1011,1012
vext,121,123,1,0,0.02,0
vsel,s,,,28,30,1
vatt,2,5,3
lsel,s,,,202,212,2
lesize,all,,,2
allsel,all
lsel,s,,,203,205,2
lesize,all,,,1
allsel,all
lsel,s,,,207,209,2
lesize,all,,,2
allsel,all
lsel,s,,,211,213,2
lesize,all,,,1
allsel,all
lsel,s,,,218,229,11
lsel,a,,,237
lesize,all,,,1
allsel,all
vsel,s,,,28,30,1
mshape,0,3d
mshkey,1
vmesh,all
vsel,s,,,1,30,1
nsel,u,,,1,30,1

nummrg,all
numcmp,all


allsel,all   
csys,11
lsel,s,,,1,5  
nsll,s,1   
cm,cm1jnod,node   
*get,max1,node,0,count  
*dim,ojd,,max1
*dim,jd,,max1   
*get,nod1,node,0,num,min  
ojd(1)=nod1
*do,i,2,max1
ojd(i)=ndnext(ojd(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod   
*do,i,1,max1
nod1=ojd(i)
j=nnear(nod1)
jd(i)=j
*enddo
nsel,all
ji=1
*do,i,1,max1
csys,11
nrotat,1,6,1
nrotat,58,90,32
nrotat,114
nrotat,186,187,1
nrotat,189
cp,ji,ux,ojd(i),jd(i)     
cp,ji+1,uz,ojd(i),jd(i)   
ji=ji+2
*enddo
allsel,all


allsel,all  
csys,12
lsel,s,,,7  
nsll,s,1   
cm,cm1jnod2,node   
*get,max2,node,0,count  
*dim,ojd2,,max2
*dim,jd2,,max2   
*get,nod2,node,0,num,min  
ojd2(1)=nod2
*do,i,2,max2
ojd2(i)=ndnext(ojd2(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod2   
*do,i,1,max2
nod2=ojd2(i)
j=nnear(nod2)
jd2(i)=j
*enddo
nsel,all
ji=13
*do,i,1,max2
csys,12
nrotat,7,8,1
nrotat,225,231,6
cp,ji,ux,ojd2(i),jd2(i)      
cp,ji+1,uz,ojd2(i),jd2(i)   
ji=ji+2
*enddo
allsel,all


allsel,all   
csys,13
lsel,s,,,9,12,1  
nsll,s,1   
cm,cm1jnod3,node   
*get,max3,node,0,count  
*dim,ojd3,,max3
*dim,jd3,,max3   
*get,nod3,node,0,num,min
ojd3(1)=nod3
*do,i,2,max3
ojd3(i)=ndnext(ojd3(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod3   
*do,i,1,max3
nod3=ojd3(i)
j=nnear(nod3)
jd3(i)=j
*enddo
nsel,all
ji=17
*do,i,1,max3
csys,13
nrotat,9,13,1
nrotat,300,321,21
nrotat,375,385,5
cp,ji,ux,ojd3(i),jd3(i)      
cp,ji+1,uz,ojd3(i),jd3(i)     
ji=ji+2
*enddo
allsel,all


allsel,all  
csys,14
lsel,s,,,14,17,1  
nsll,s,1   
cm,cm1jnod4,node   
*get,max4,node,0,count  
*dim,ojd4,,max4
*dim,jd4,,max4   
*get,nod4,node,0,num,min
ojd4(1)=nod4
*do,i,2,max4
ojd4(i)=ndnext(ojd4(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod4   
*do,i,1,max4
nod4=ojd4(i)
j=nnear(nod4)
jd4(i)=j
*enddo
nsel,all
ji=27
*do,i,1,max4
csys,14
nrotat,14,18,1
nrotat,485,488,1
nrotat,456
cp,ji,ux,ojd4(i),jd4(i)     
cp,ji+1,uz,ojd4(i),jd4(i)     
ji=ji+2
*enddo
allsel,all


allsel,all   
csys,15
lsel,s,,,19,22,1  
nsll,s,1   
cm,cm1jnod5,node   
*get,max5,node,0,count  
*dim,ojd5,,max5
*dim,jd5,,max5   
*get,nod5,node,0,num,min
ojd5(1)=nod5
*do,i,2,max5
ojd5(i)=ndnext(ojd5(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod5   
*do,i,1,max5
nod5=ojd5(i)
j=nnear(nod5)
jd5(i)=j
*enddo
nsel,all
ji=37
*do,i,1,max5
csys,15
nrotat,19,23,1
nrotat,646,652,3
nrotat,549
nrotat,573
cp,ji,ux,ojd5(i),jd5(i)      
cp,ji+1,uz,ojd5(i),jd5(i)     
ji=ji+2
*enddo
allsel,all


allsel,all
csys,16
lsel,s,,,24
nsll,s,1   
cm,cm1jnod6,node   
*get,max6,node,0,count  
*dim,ojd6,,max6
*dim,jd6,,max6   
*get,nod6,node,0,num,min  
ojd6(1)=nod6
*do,i,2,max6
ojd6(i)=ndnext(ojd6(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod6   
*do,i,1,max6
nod6=ojd6(i)
j=nnear(nod6)
jd6(i)=j
*enddo
nsel,all
ji=47
*do,i,1,max6
csys,16
nrotat,24,25,1
nrotat,684,690,6
cp,ji,ux,ojd6(i),jd6(i)     
cp,ji+1,uz,ojd6(i),jd6(i)   
ji=ji+2
*enddo
allsel,all


allsel,all  
csys,17
lsel,s,,,26,29,1   
nsll,s,1   
cm,cm1jnod7,node   
*get,max7,node,0,count  
*dim,ojd7,,max7
*dim,jd7,,max7   
*get,nod7,node,0,num,min  
ojd7(1)=nod7
*do,i,2,max7
ojd7(i)=ndnext(ojd7(i-1))
*enddo
allsel,all
nsel,all
cmsel,u,cm1jnod7   
*do,i,1,max7
nod7=ojd7(i)
j=nnear(nod7)
jd7(i)=j
*enddo
nsel,all
ji=51
*do,i,1,max7
csys,17
nrotat,26,30,1
nrotat,834,835,1
nrotat,840
nrotat,759
nrotat,778
cp,ji,ux,ojd7(i),jd7(i)     
cp,ji+1,uz,ojd7(i),jd7(i)   
ji=ji+2
*enddo
allsel,all


cp,61,uy,30,778
csys,11
cp,62,uy,1,58
allsel,all
csys,0

/solu

nsel,s,loc,y,-0.02
nsel,r,loc,x,0
d,all,all
nsel,s,loc,y,-0.02
nsel,r,loc,x,2.5
d,all,uy
d,all,uz

nsel,s,,,913,915,1
d,all,uy
d,all,uz
allsel,all   


pred,on
cnvtol,f,,0.05,2
autots,1
lnsrch,1
ncnv,2
neqit,50
save


time,1e-6
outres,all,all
nsubst,1

acel,,9.8
lswrite,1


time,50
outres,all,all
nsubst,100

cp,63,uy,271,272,273
cp,64,uy,730,731,732
d,271,uy,-0.015
d,730,uy,-0.015
allsel,all  
KBC,0
allsel,all  
lswrite,2
allsel,all  
lswrite,2




lssolve,1,2,1


举报 回复
hewenlong2... 发表于 2011-9-6 11:20:52
预应力钢筋和混凝土分开建模,再耦合。如果去切混凝土得到预应力曲线,得不偿失
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shain2004 发表于 2011-9-6 12:28:01
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