钢管混凝土拱桥ansys命令流很实用很经典Word文档下载推荐.docx
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k,9,0.75,0.25
k,10,0.5,0
a,1,2,3,4,5,6,7,8,9,10
secwrite,hl1,sect,,1
sectype,4,beam,mesh
hl1'
建立横梁标准截面b-b
k,2,-0.5,1
k,3,-0.75,1.25
k,4,-0.75,1.5
k,5,0.75,1.5
k,6,0.75,1.25
k,7,0.5,1
k,8,0.5
a,1,2,3,4,5,6,7,8
secwrite,hl2,sect,,1
sectype,5,beam,mesh
hl2'
建立横梁标准截面c-c
k,2,-0.5,1.04
k,3,-0.75,1.04+0.25
k,4,-0.75,1.04+0.5
k,5,-0.55,1.04+0.5
k,6,-0.55,1.04+0.5+0.35
k,7,0.55,1.04+0.5+0.35
k,8,0.55,1.04+0.5
k,9,0.75,1.04+0.5
k,10,0.75,1.04+0.25
k,11,0.5,1.04
k,12,0.5
k,13,-0.2,0.58
k,14,-0.2,1.04+0.5-0.3
k,15,0.2,1.04+0.5-0.3
k,16,0.2,0.58
a,1,2,3,4,5,6,7,8,9,10,11,12
a,13,14,15,16
asba,1,2
secwrite,hl3,sect,,1
sectype,6,beam,mesh
hl3'
建立横梁标准截面d-d
ldele,all
kdele,all
k,2,-0.5,1.23
k,3,-0.75,1.23+0.25
k,4,-0.75,1.23+0.5
k,5,-0.55,1.23+0.5
k,6,-0.55,1.23+0.5+0.35
k,7,0.55,1.23+0.5+0.35
k,8,0.55,1.23+0.5
k,9,0.75,1.23+0.5
k,10,0.75,1.23+0.25
k,11,0.5,1.23
k,13,-0.2,0.38
k,14,-0.3,0.38+0.2
k,15,-0.3,1.23+0.5-0.1-0.2
k,16,-0.2,1.23+0.5-0.1
k,17,0.2,1.23+0.5-0.1
k,18,0.3,1.23+0.5-0.1-0.2
k,19,0.3,0.38+0.2
k,20,0.2,0.38
a,13,14,15,16,17,18,19,20
secwrite,hl4,sect,,1
sectype,7,beam,mesh
hl4'
建立横梁标准截面e-e
secwrite,hl5,sect,,1
sectype,8,beam,mesh
hl5'
etdele,1!
!
将辅助单元删除
***********************
定义所有材料特性
et,1,beam44!
钢管特性
mp,ex,1,2.1e11
mp,dens,1,7800
mp,prxy,1,0.3
n,90000,0,0,30!
参考点
et,2,beam44!
钢管内50#混凝土特性
mp,ex,2,3.5e10
mp,dens,2,2600
mp,prxy,2,0.1667
et,3,beam44!
纵梁30#混凝土钢管特性
mp,ex,3,3.0e10
mp,dens,3,2600
mp,prxy,3,0.1667
et,4,beam44!
横梁30#混凝土钢管特性
mp,ex,4,3.0e10
mp,dens,4,2600
mp,prxy,4,0.1667
et,5,beam44!
风撑特性
mp,ex,5,2.1e11
mp,dens,5,7800
mp,prxy,5,0.3
et,6,link10!
吊杆特性(钢绞线)
mp,ex,6,1.9e11
mp,dens,6,7800
mp,prxy,6,0.3
keyopt,6,3,0!
只拉吊杆
et,7,beam44!
盖梁30#混凝土特性
mp,ex,7,3.0e10
mp,dens,7,2600
mp,prxy,7,0.1667
et,8,beam44!
墩柱40#混凝土特性
mp,ex,8,3.3e10
mp,dens,8,2600
mp,prxy,8,0.1667
et,9,beam44!
横梁30#混凝土特性
mp,ex,9,3.0e10
mp,dens,9,2600
mp,prxy,9,0.1667
et,10,link10!
系杆特性(钢绞线)
mp,ex,10,2.0e11
mp,dens,10,7800
mp,prxy,10,0.3
keyopt,10,3,0!
只拉系杆
et,11,beam44!
承台桩基基础25#混凝土特性
mp,ex,11,2.85e10
mp,dens,11,2500
mp,prxy,11,0.1667
##############################
开始建立模型
0号横梁(端横梁)
n,1,,2.025
n,2,6.25,2.025
n,3,6.25+5.1,2.025
n,4,6.25+5.1+0.2+1.9/2,2.025!
12.5m位置
n,5,6.25+5.1+2.3,2.025
n,6,6.25+5.1+2.3+2.23,2.025
nsym,x,10,2,6,1
type,4
r,1
real,1
mat,4
secnum,7
单元1到10号为0号横梁
e,1,2
secnum,6
e,2,3
secnum,5
e,3,4
e,4,5
secnum,4
e,5,6
e,1,12
e,12,13
e,13,14
e,14,15
e,15,16
1号端横梁
egen,2,100,1,10,1,,,,,,0,4.7+1.25/2+1.5/2
其余端横梁2~17号
egen,17,100,11,20,1,,,,,,0,5.3+1.5
18号端横梁
egen,2,100,171,180,1,,,,,,0,4.7+1.25/2+1.5/2
cm,hl,elem
esel,none
********************************
纵梁单元
type,3
r,2
real,2
mat,3
sectype,10,beam,rect,zl
secdata,0.4,1.2
secnum,10
0号纵梁
e,1,101
e,2,102
e,3,103
e,5,105
e,12,112
e,13,113
e,15,115
中间纵梁1~16号
*do,i,0,15,1
e,101+i*100,201+i*100
e,102+i*100,202+i*100
e,104+i*100,204+i*100
e,112+i*100,212+i*100
e,114+i*100,214+i*100
*enddo
17号纵梁(端横梁)
e,1701,1801
e,1702,1802
e,1703,1803
e,1705,1805
e,1712,1812
e,1713,1813
e,1715,1815
cm,zl,elem
****************************
定义拱轴线
*dim,y,array,16!
将纵桥向距离定义为数组
*dim,cs,array,16!
定义分值cs=(1-2x/l)
*dim,z,array,16!
将拱高度定义为数组
吊杆上的点
首先定义吊杆的y向(顺桥向)坐标
y
(1)=8.1
y
(2)=14.9
y(3)=21.7
y(4)=28.5
y(5)=35.3
y(6)=42.1
y(7)=48.9
y(8)=55.7
y(9)=62.5
风撑上的点
首先定义风撑的y向(顺桥向)坐标
y(11)=21.7
y(12)=28.5
y(13)=42.1
y(14)=48.9
y(15)=59.1
0号横梁的y向坐标
y(16)=2.025
fl=25!
矢高
ml=1.1
k=log(ml+sqrt(ml*ml-1))!
k=ch-1(m)
*do,i,1,16,1
cs(i)=1-y(i)*2/125
z(i)=25-fl/(ml-1)*(cosh(k*cs(i))-1)!
拱轴高度
上述定义的拱轴线可参照姚玲森《桥梁工程》p1299
*dim,ygd,array,23!
定义预工拱度(是在后续工况中反复调算的结果)
!
初始运行中可将预拱度全部设为0
ygd
(1)=0.4000e-02+1.29e-02
ygd
(2)=0.10685e-01+2.22e-02
ygd(3)=0.19483e-01+3.03e-02
ygd(4)=0.29219e-01+3.69e-02
ygd(5)=0.39022e-01+4.23e-02
ygd(6)=0.48243e-01+4.65e-02
ygd(7)=0.56390e-01+4.95e-02
ygd(8)=0.63070e-01+5.15e-02
ygd(9)=0.68014e-01+5.21e-02
ygd(10)=0.71003e-01+5.15e-02
ygd(11)=0.71739e-01+4.95e-02
ygd(12)=0.69962e-01+4.65e-02
ygd(13)=0.65514e-01+4.23e-02
ygd(14)=0.58289e-01+3.69e-02
ygd(15)=0.48248e-01+3.04e-02
ygd(16)=0.35507e-01+2.24e-02
ygd(17)=0.20415e-01+1.23e-02
ygd(18)=0.65770e-01+0.40234e-01
ygd(19)=0.69769e-01+0.41215e-01
生成各吊杆的竖向节点(z向)
ngen,2,10000,104,114,10,0,0,z
(1)+ygd
(1)
ngen,2,10000,204,214,10,0,0,z
(2)+ygd
(2)
ngen,2,10000,304,314,10,0,0,z(3)+ygd(3)
ngen,2,10000,404,414,10,0,0,z(4)+ygd(4)
ngen,2,10000,504,514,10,0,0,z(5)+ygd(5)
ngen,2,10000,604,614,10,0,0,z(6)+ygd(6)
ngen,2,10000,704,714,10,0,0,z(7)+ygd(7)
ngen,2,10000,804,814,10,0,0,z(8)+ygd(8)
ngen,2,10000,904,914,10,0,0,z(9)+ygd(9)
ngen,2,10000,1004,1014,10,0,0,z(8)+ygd(10)
ngen,2,10000,1104,1114,10,0,0,z(7)+ygd(11)
ngen,2,10000,1204,1214,10,0,0,z(6)+ygd(12)
ngen,2,10000,1304,1314,10,0,0,z(5)+ygd(13)
ngen,2,10000,1404,1414,10,0,0,z(4)+ygd(14)
ngen,2,10000,1504,1514,10,0,0,z(3)+ygd(15)
ngen,2,10000,1604,1614,10,0,0,z
(2)+ygd(16)
ngen,2,10000,1704,1714,10,0,0,z
(1)+ygd(17)
ngen,2,3000,104,114,10,0,0,0
ngen,2,3000,204,214,10,0,0,0
ngen,2,3000,304,314,10,0,0,0
ngen,2,3000,404,414,10,0,0,0
ngen,2,3000,504,514,10,0,0,0
ngen,2,3000,604,614,10,0,0,0
ngen,2,3000,704,714,10,0,0,0
ngen,2,3000,804,814,10,0,0,0
ngen,2,3000,904,914,10,0,0,0
ngen,2,3000,1004,1014,10,0,0,0
ngen,2,3000,1104,1114,10,0,0,0
ngen,2,3000,1204,1214,10,0,0,0
ngen,2,3000,1304,1314,10,0,0,0
ngen,2,3000,1404,1414,10,0,0,0
ngen,2,3000,1504,1514,10,0,0,0
ngen,2,3000,1604,1614,10,0,0,0
ngen,2,3000,1704,1714,10,0,0,0
ngen,2,6000,104,114,10,0,0,z
(1)+ygd
(1)
ngen,2,6000,204,214,10,0,0,z
(2)+ygd
(2)
ngen,2,6000,304,314,10,0,0,z(3)+ygd(3)
ngen,2,6000,404,414,10,0,0,z(4)+ygd(4)
ngen,2,6000,504,514,10,0,0,z(5)+ygd(5)
ngen,2,6000,604,614,10,0,0,z(6)+ygd(6)
ngen,2,6000,704,714,10,0,0,z(7)+ygd(7)
ngen,2,6000,804,814,10,0,0,z(8)+ygd(8)
ngen,2,6000,904,914,10,0,0,z(9)+ygd(9)
ngen,2,6000,1004,1014,10,0,0,z(8)+ygd(10)
ngen,2,6000,1104,1114,10,0,0,z(7)+ygd(11)
ngen,2,6000,1204,1214,10,0,0,z(6)+ygd(12)
ngen,2,6000,1304,1314,10,0,0,z(5)+ygd(13)
ngen,2,6000,1404,1414,10,0,0,z(4)+ygd(14)
ngen,2,6000,1504,1514,10,0,0,z(3)+ygd(15)
ngen,2,6000,1604,1614,10,0,0,z
(2)+ygd(16)
ngen,2,6000,1704,1714,10,0,0,z
(1)+ygd(17)
*do,i,1,9,1
ngen,2,10000,i*100+4,i*100+14,10,0,0,z(i)+ygd(i)!
吊杆节点
jj=1
*do,i,10,17,1
ngen,2,10000,i*100+4,i*100+14,10,0,0,z(i-2*jj)+ygd(i)!
jj=jj+1
为了对以后吊杆转动进行放松,重复吊杆节点
ngen,2,3000,i*100+4,i*100+14,10,0,0,z(i)+ygd(i)!
吊杆下节点
ngen,2,3000,i*100+4,i*100+14,10,0,0,z(i-2*jj)+ygd(i)!
*do,i,1,10,1
ngen,2,6000,i*100+4,i*100+14,10,0,0,z(i)+ygd(i)!
ngen,2,6000,i*100+4,i*100+14,10,0,0,z(i-2*jj)+ygd(i)!
定义吊杆的参数(每根吊杆均采用109根直径7mm高强钢丝)
dgarea=109*3.141593*0.25*0.007*0.007
dgyl=0.3*1670*1e6!
吊杆除应力采用0.3倍抗拉强度(n/mm*mm)
dgl=dgyl*dgarea
edg=1.95e11!
吊杆弹模
*dim,L0,array,17!
定义吊杆的初始0应力长度数组
*dim,L,array,17!
定义吊杆的受力后长度数组
*dim,deltL,array,17!
定义吊杆的受力后长度增量数组
*dim,istrn,array,17!
定义吊杆的应力数组
*dim,fdg,array,17!
定义在吊杆上施加的力数组
L0(i)=z(i)!
0应力时单元长度
L0(18-i)=z(i)!
吊杆沿中轴对称
*do,i,1,17,1
fdg(i)=dgl!
各吊杆施加的预应力
type,6
mat,6
deltL(i)=fdg(i)*L0(i)/(edg*dgarea)!
吊杆受力后的增长量
L(i)=L0(i)+deltL(i)
istrn(i)=deltL(i)/L(i)!
吊杆受力后的应变
r,i+1000,dgarea,istrn(i)!
定义吊杆的实常数特性
real,i+1000!
赋予吊杆的实常数特性
e,i*100+4+3000,i*100+4+6000!
生成吊杆单元
e,i*100+10+4+3000,i*100+10+4+6000
cm,dg,elem
*********************************
real,1018!
定义一个全为零的实常数便于利用截面特性时,不产生冲突
生成风撑上的节点
n,20001,0,21.7,z(11)
n,20002,0,28.5,z(12)
n,20003,0,42.1,z(13)
n,20004,0,48.9,z(14)
n,20005,0,59.1,z(15)
n,20006,0,65.9,z(15)
n,20007,0,76.1,z(14)
n,20008,0,82.9,z(13)
n,20009,0,96.5,z(12)
n,20010,0,103.3,z(11)
n,20011,12.5,21.7,z(11)
n,20012,12.5,28.5,z(12)
n,20013,12.5,42.1,z(13)
n,20014,12.5,48.9,z(14)
n,20015,12.5,59.1,z(15)+ygd(18)
n,20016,12.5,65.9,z(15)+ygd(19)
n,20017,12.5,76.1,z(14)
n,20018,12.5,82.9,z(13)
n,20019,12.5,96.5,z(12)
n,20020,12.5,103.3,z(11)
n,20021,-12.5,21.7,z(11)
n,20022,-12.5,28.5,z(12)
n,20023,-