我后来又做了一个单箱涵的,主要问题出在四个角点的受力上不知如何取,上面的双箱涵感觉角点的受力取得没有道理,单箱涵的主要问题是在下面两个角点处弯距和剪力集中:
/nopr
keyw,pr_struc,1
/prep7
et,1,beam3
et,2,combin14
r,1,0.5,0.0104167,0.5
r,2,30e6 !这个单位应是N/m ,和弹簧单元数目应该有关系?
mp,ex,1,3e10 !一般数据中只有地基反应模量,单位N/m3,
mp,prxy,1,0.2
mp,dens,1,2500
!!
k,1
k,2,5
k,3,5,5
k,4,,5
lstr,1,2
lstr,2,3
lstr,3,4
lstr,4,1
!!
lesize,all,0.5
type,1
mat,1
real,1
lmesh,all
/pnum,elem,1
/pnum,node,1
/rep
!!
nsel,s,loc,y,0
ngen,2,100,all,,,,-1
nsel,s,loc,y,5
ngen,2,200,all,,,,1
nsel,s,loc,x,5
ngen,2,300,all,,,1
nsel,s,loc,x,0
ngen,2,400,all,,,-1
allsel,all
nplot
/pnum,node,1
/rep
ndele,102,302,200
ndele,212,312,100
ndele,222,422,200
ndele,101,401,300
nummrg,all
numcmp,all
/rep
!!
type,2
mat,1
real,2
e,1,78
e,2,68
e,12,79
e,22,80
*do,i,3,11,1
e,i,i+38
*enddo
*do,i,13,21,1
e,i,i+46
*enddo
*do,i,23,31,1
e,i,i+27
*enddo
*do,i,32,40,1
e,i,i+37
*enddo
eplot
!!
/sol
nsel,s,loc,y,-1
nsel,a,loc,y,6
nsel,a,loc,x,6
nsel,a,loc,x,-1
d,all,all
allsel,all
/rep
!!
acel,0,10
nsel,s,loc,y,5
nsel,u,node,,12,22,10
f,all,fy,-60000
nsel,s,loc,y,0
nsel,u,node,,1,2,1
f,all,fy,76850
!!
allsel,all
f,21,fx,-38400
f,20,fx,-41400
f,19,fx,-44400
f,18,fx,-47400
f,17,fx,-50400
f,16,fx,-53400
f,15,fx,-56400
f,14,fx,-59400
f,13,fx,-62400
!!
f,32,fx,38400
f,33,fx,41400
f,34,fx,44400
f,35,fx,47400
f,36,fx,50400
f,37,fx,53400
f,38,fx,56400
f,39,fx,59400
f,40,fx,62400
!!
f,2,fx,-32700 !四个角点受力取值估计有问题?
f,2,fy,38425 !f,1,fx,65400?
f,12,fx,-17700 !f,1,fy,76850? 其余四角点类似
f,12,fy,-30000
f,22,fx,17700
f,22,fy,-30000
f,1,fx,32700
f,1,fy,38425
nropt,full
allsel
outres,all,all
solve
fini
!!
/post1
pldisp,1
!!
etable,,smisc,6
etable,,smisc,12
etable,,smisc,1
etable,,smisc,7
etable,,smisc,2
etable,,smisc,8
plls,smis6,smis12,-1,0 !弯距
plls,smis1,smis7,1,0 !轴力
plls,smis2,smis8,1 !剪力 |