isolatedbridge.txt

隔震桥梁的ansys模型

/CLEAR
/prep7

ET,1,SHELL63
ET,2,BEAM188
ET,3,COMBIN40,0,,1,0,,1
ET,4,COMBIN40,0,,3,0,,1
ET,5,COMBIN14,0,2

MP,EX,1,3.25E10
MP,PRXY,1,0.2
MP,DENS,1,2600
R,1,0.4,0.4,0.4,0.4
R,2,0.2,0.2,0.2,0.2
r,3,,,
r,4,2405e3,0,56,0,22.5e3,481e3              !k1,C,M,GAP,FSLIDE,K2
r,5,1088e6,0                                   !1095e6  4176

SECTYPE,1,BEAM,RECT,HBEAM
SECDATA,1.2,1.3
SECOFFSET,USER,0.6
SECTYPE,2,BEAM,RECT,HBEAM
SECDATA,1.2,1.2
SECOFFSET,USER,0.6
SECTYPE,3,BEAM,CSOLID,ZBEAM
SECDATA,0.5,6,3

K,1
K,2,1.85
K,7,9.65
KFILL,2,7,4
K,8,11.5
K,9,0,0.7
K,10,1.85,0.7
K,15,9.65,0.7
KFILL,10,15,4
K,16,11.5,0.7
kgen,4,1,16,1,0,0,-16

k,65,2.63,0,-16        !墩顶、墩底节点
k,66,2.63,-5.7,-16
k,67,8.87,0,-16
k,68,8.87,-5.7,-16
kgen,2,65,68,1,0,0,-16



*do,i,9,15,1                 !生成箱梁
A,i,i+1,i+17,i+16
A,i+16,i+17,i+33,i+32
A,i+32,i+33,i+49,i+48
*enddo
lsel,s,line,,all
lesize,all,1
asel,s,area,,1,21,1
aatt,1,1,1
amesh,all

*do,i,65,71,2         !墩直线
l,i,i+1
*enddo

*do,i,1,7,1
A,i,i+1,i+17,i+16
A,i+16,i+17,i+33,i+32
A,i+32,i+33,i+49,i+48
*enddo
*do,i,1,8,1
A,i,i+16,i+24,i+8
A,i+16,i+32,i+40,i+24
A,i+32,i+48,i+56,i+40
*enddo
lsel,s,line,,all
lesize,all,1
aatt,1,2,1
asel,s,area,,22,66,1
amesh,all


lsel,s,line,,53,56,1   !桥墩单元
lesize,all,1
latt,1,3,2,,,,3
lmesh,all

k,73                  !桥墩横梁关键点
k,74,1.85
k,75,3.41
k,76,4.97
k,77,6.53
k,78,8.09
k,79,9.65
k,80,11.5
!kgen,4,73,80,1,0,0,-16

*do,i,73,79             !桥墩线
l,i,i+1
*enddo
lgen,4,141,147,1,0,0,-16

lsel,s,line,,141,147,1    !横梁单元
latt,1,3,2,,,,1
lesize,all,1
lmesh,all
lsel,s,line,,148,161,1   
latt,1,3,2,,,,2
lesize,all,1
lmesh,all
lsel,s,line,,162,168,1
latt,1,3,2,,,,1
lesize,all,1
lmesh,all

cp,2,all,1471,1518      !耦合横梁和墩相交节点
cp,next,all,1478,1526
cp,next,all,1485,1533
cp,next,all,1492,1541



real,4                          !生成X向弹簧单元在横梁和桥面梁之间
type,3
e,884,1503     !左边墩
e,1080,1507
e,1276,1511
e,901,1518     !左中墩       
e,1097,1522
e,1293,1526
e,933,1533     !右中墩
e,1129,1537
e,1325,1541
e,965,1548     !右边墩
e,1161,1552
e,1357,1556

real,4                          !生成Z向弹簧单元
type,4
e,884,1503     !左边墩
e,1080,1507
e,1276,1511
e,901,1518     !左中墩       
e,1097,1522
e,1293,1526
e,933,1533     !右中墩
e,1129,1537
e,1325,1541
e,965,1548     !右边墩
e,1161,1552
e,1357,1556
real,5                          !生成Y向弹簧单元
type,5
e,884,1503     !左边墩
e,1080,1507
e,1276,1511
e,901,1518     !左中墩       
e,1097,1522
e,1293,1526
e,933,1533     !右中墩
e,1129,1537
e,1325,1541
e,965,1548     !右边墩
e,1161,1552
e,1357,1556

d,1499,ux,,,1513,1,uy,uz,rotx,roty,rotz  !固定墩底节点和桥头横梁
d,1544,ux,,,1558,1,uy,uz,rotx,roty,rotz
d,1472,ux,,,1493,7,uy,uz,rotx,roty,rotz


/solu                         !模态分析
acel,0,9.8
antype,modal
modopt,lanb,10
mxpand,10,,,0
modopt,lanb,10,0,100,,off
solve
/post1
set,first
pldisp,,
finish