中承式拱桥Ansys模型

于拱肋和吊杆之下。

以下是Ansys模型命令流

/prep7

et,1,beam4

et,2,link10

et,3,shell63

r,1,6,4.5,2,2,3

r,2,3,3.0,0.8,1.5,3

r,3,0.4,0.4,0.4,0.4

r,4,0.0157,9e-4

r,5,0.0157,1.4e-3

r,6,1.0,0.2,0.1,1,1.5

mp,ex,1,2e11

mp,nuxy,1,0.3

mp,dens,1,7800

mp,ex,2,3e10

mp,nuxy,2,0.2

mp,dens,2,2700

!添加关键点

k,1,-65,-5.25

k,2,-60,-10,0

k,3,-55,-5.25

k,4,-50

k,5,-45,4.75

k,6,-40,9

k,7,-35, 12.75

k,8,-30,16

k,9,-25, 18.75

k,10,-20, 21

k,11,-15,22.75

k,12,-10,24

k,13,-5,24.75

k,14,0,25

k,15,5,24.75

k,16,10,24

k,17,15,22.75

k,18,20,21

k,19,25, 18.75

k,20,30,16

k,21,35,12.75

k,23,45,4.75

k,24,50

k,25,55,-5.25

k,26,60,-10

k,27,65,-5.25

*do,i,1,29

k,27+i,5*i-75

*enddo

kgen,2,all,,,,,21,,0 !绘拱圈框架r1 *do,i,1,26

l,i,i+1

l,i+56,i+57

*enddo

l,1,28

l,27,56

l,57,84

l,83,112

!绘制拱间联系r2 *do,i,1,13

l,2*i,2*i+56

*enddo

!绘制横隔梁r5 *do,i,1,29

l,i+27,i+83

*enddo

!绘制纵梁r5

*do,i,1,28

l,i+27,i+28

l,i+83,i+84

*enddo

!绘腹拱墩r5

*do,i,1,3

l,i+56,i+84

l,i,i+28

l,i+24,i+52

l,i+80,i+108

*enddo

!绘桥梁吊杆r4r5 *do,i,1,19

l,i+4,i+32

l,i+60,i+88

*enddo

*do,i,1,28

a,i+27,i+28,i+84,i+83 *enddo

!拱圈框架r1

lsel,s,,,1,56

latt,1,1,1

lesize,all,2

lmesh,all

!横隔梁纵梁腹拱墩r6 lsel,s,,,70,166

latt,1,6,1

lesize,all,2

lmesh,all

!拱间联系r2

lsel,s,,,59,67

lsel,a,,,57,57

lsel,a,,,69,69

latt,1,2,1

lesize,all,2

lmesh,all

!悬索

lsel,s,,,167,172

latt,1,5,2

lesize,all,,,1

lmesh,all

lsel,s,,,173,198

latt,1,4,2

lesize,all,,,1

lmesh,all

lsel,s,,,199,204

latt,1,5,2

lesize,all,,,1

lmesh,all

!桥面

aatt,2,3,3

aesize,all,2

amesh,all

finish

!施加荷载和约束

/solu

!位移约束

dk,2,all

dk,26,all

dk,82,all

dk,28, , , , 1,uy,uz

dk,56, , , , 1,uy,uz

dk,84, , , , 1,uy,uz

dk,112, , , , 1,uy,uz

!重力G

acel,0,9.8,0,

pstres,1

/solu

antype,2

modopt,lanb,20

mxpand,10,0,100

pstres,1

solve

/post1

set,list

set,1,2 !设置荷载子步(第二阶)的结果为当前pldisp,1 !绘制振型图

plnsol,u,y !绘制Uy图

etable,mi,smisc,6 !定义单元表(弯矩分布)

etable,mj,smisc,12

plls,mi,mj !绘制弯矩分布

/POST1

ETABLE,Mz1,SMISC, 6

ETABLE,Mz2,SMISC, 12

/REPLO

/VIEW,1,-1

/ANG,1

/REP,FAST

!*设置视角

PLDI, ,

ANMODE,10,0.5, ,0

!*建立动画