1、斜拉橋ansys建模/com,new model of linjiang cable_stayed bridge,2004.2.09/prep7/title, cable_stayed bridge,author is Sunhang/com,define the keypoints*set,alfa1,10 !angle of tower upside*set,alfa2,65 !angle of tower downside*set,alfa3,79.04594 !angle of tower with bridge surface*set,y1,55.5 !橋塔頂面到原點的距離*set,

2、y2,33.5 !橋塔中部的Y軸向長度*set,pi,3.1415926*set,x3,y2/tan(alfa2*pi/180) !橋塔中部的X軸向長度*set,x2,(y1-y2)*tan(alfa1*pi/180) !橋塔上部的X軸向長度*set,x1,x2+x3 !橋塔的X軸向長度 *set,kp_yy1,0 !定義橋塔上部的索錨固點豎向距離（從塔頂算起）*set,kp_yy2,2.5185 *set,kp_yy3,3.5788*set,kp_yy4,4.6469*set,kp_yy5,5.7248*set,kp_yy6,6.8151*set,kp_yy7,7.9211*set,kp_y

3、y8,9.0479*set,kp_yy9,10.2027*set,kp_yy10,11.3965*set,kp_yy11,12.6470*set,kp_yy12,13.9848*set,kp_yy13,15.7143*set,kp_yy14,17.7041*set,kp_yy15,22.0000k,1,-x1,y1,k,6,-x1+kp_yy2*tan(alfa1*pi/180),y1-kp_yy2k,8,-x1+kp_yy3*tan(alfa1*pi/180),y1-kp_yy3k,10,-x1+kp_yy4*tan(alfa1*pi/180),y1-kp_yy4k,12,-x1+kp_yy

4、5*tan(alfa1*pi/180),y1-kp_yy5k,14,-x1+kp_yy6*tan(alfa1*pi/180),y1-kp_yy6k,16,-x1+kp_yy7*tan(alfa1*pi/180),y1-kp_yy7k,18,-x1+kp_yy8*tan(alfa1*pi/180),y1-kp_yy8k,20,-x1+kp_yy9*tan(alfa1*pi/180),y1-kp_yy9k,22,-x1+kp_yy10*tan(alfa1*pi/180),y1-kp_yy10k,24,-x1+kp_yy11*tan(alfa1*pi/180),y1-kp_yy11k,26,-x1+

5、kp_yy12*tan(alfa1*pi/180),y1-kp_yy12k,28,-x1+kp_yy13*tan(alfa1*pi/180),y1-kp_yy13k,30,-x1+kp_yy14*tan(alfa1*pi/180),y1-kp_yy14k,38,-x1+kp_yy15*tan(alfa1*pi/180),y1-kp_yy15kfill,1,6 !在已建關(guān)鍵點內(nèi)內(nèi)插關(guān)鍵點kfill,6,8kfill,8,10kfill,10,12kfill,12,14kfill,14,16kfill,16,18kfill,18,20kfill,20,22kfill,22,24kfill,24,2

6、6kfill,26,28kfill,28,30kfill,30,38*set,kp_numone,38!定義橋塔上部的最后一個關(guān)鍵點號/com,define and mesh the above part of tower*dim,BBS,40*dim,HHS,40*dim,SSS,40*dim,IIYYS,40*dim,IIZZS,40*set,length1,2.9546108*set,length2,4.9251168*set,width1,3*set,width2,5*set,diff1_length,length2-length1 !橋塔上部兩個截面的長度之差（縱橋向）*set,di

7、ff1_width,width2-width1 !橋塔上部兩個截面的寬度之差（橫橋向）*dim,yy,40 !定義橋塔上部的關(guān)鍵點豎向距離數(shù)組（從塔頂計算）*do,i,1,38 *set,yy(i),y1-ky(i) *set,hhs(i),diff1_length*yy(i)/(y1-y2)+length1 *set,bbs(i),diff1_width*yy(i)/(y1-y2)+width1 SSS(i)=BBS(i)*HHS(i) !按照實心截面 IIZZS(i)=BBS(i)*HHS(i)*3/12 IIyyS(i)=HHS(i)*BBS(i)*3/12*enddo*do,i,1,k

8、p_numone-1et,i,beam44keyopt,i,9,0mp,ex,i,3.5e10mp,prxy,i,0.167mp,dens,i,2.6e3mp,alpx,i,1e-05 !定義混凝土的線膨脹系數(shù)r,i,SSs(i),IIZZS(i),IIyyS(i),BBS(i)/2,HHS(i)/2,IIZZS(i)+IIyyS(i)rmore,SSs(i+1),IIZZS(i+1),IIyyS(i+1),BBS(i+1)/2,HHS(i+1)/2,IIZZS(i+1)+IIyyS(i+1)rmore,0,0,0,0,0,0rmore,0,0,BBS(i)/2,HHS(i)/2,BBS(i+

9、1)/2,HHS(i+1)/2lsel,u,real,1,kp_numonelstr,i,i+1latt,i,i,ilesize,all,1,1lmesh,all,allallsel,all*enddocm,uptower,elem*get,emin_ts,elem,0,num,min*get,emax_ts,elem,0,num,maxallselkp_ts=emax_ts-emin_ts+1 !提取出來橋塔上部的關(guān)鍵點數(shù)目/com,createt the kps of tower down*set,zfirst,1.25 !三個控制點的橫橋向坐標(biāo)*set,zsecond,7.4839*se

10、t,kp_numtwo,kp_ts+2 !定義橋塔下部的第一個關(guān)鍵點*set,diff1_elem,67 !橋塔下部的單元數(shù)目*set,kp_numthree,kp_numtwo+diff1_elem !橋塔下部的最后一個關(guān)鍵點k,kp_numtwo,-y2/tan(alfa2*pi/180),y2 ,-zfirstk,kp_numthree,-zsecondkfill,kp_numtwo,kp_numthree*dim,BBX,200*dim,HHX,200*dim,SSX,200*dim,IIYYX,200*dim,IIZZX,200*set,HHXQ,0.8*sin(alfa2*pi/1

11、80) !定義砍掉部分的長度*set,BBXQ,0.4*sin(alfa3*pi/180) *set,SSXQ,HHXQ*BBXQ*dim,IIYYXQ,200*dim,IIZZXQ,200!*set,w4,2.6875*2 !在橋塔折角處單元的寬度!*set,w5,4.3682*2 !在坐標(biāo)原點處單元的寬度*set,w4,4.5361558*set,w5,8.1609208*do,i,1,diff1_elem+1 BBX(i+kp_numone)=2.5*sin(alfa3*3.1415926/180) HHX(i+kp_numone)=w4+(i-1)*(w5-w4)/67 SSX(i+k

12、p_numone)=BBX(i+kp_numone)*HHX(i+kp_numone)-SSXQ*2 IIYYXQ(i+kp_numone)=HHXQ*BBXQ*3/12+SSXQ*BBX(i+kp_numone)*2/4 IIZZXQ(i+kp_numone)=BBXQ*HHXQ*3/12+SSXQ*HHX(i+kp_numone)*2/4 IIYYX(i+kp_numone)=HHX(i+kp_numone)*BBX(i+kp_numone)*3/12-IIYYXQ(i+kp_numone)*2 IIZZX(i+kp_numone)=BBX(i+kp_numone)*HHX(i+kp_nu

13、mone)*3/12-IIZZXQ(i+kp_numone)*2*enddo*do,i,KP_numone,kp_numone+diff1_elem-1et,i,beam44keyopt,i,9,0mp,ex,i,3.5e10mp,prxy,i,0.167mp,dens,i,2600mp,alpx,i,1e-05 !定義混凝土的線膨脹系數(shù)r,i,SSX(i+1),IIZZX(i+1),IIYYX(i+1),BBX(i+1)/2,HHX(i+1)/2,IIZZX(i+1)+IIYYX(i+1)rmore,SSX(i+2),IIZZX(i+2),IIYYX(i+2),BBX(i+2)/2,HHX(

14、i+2)/2,IIZZX(i+2)+IIYYX(i+2)rmore,0,0,0,0,0,0rmore,0,0,BBX(i+1)/2,HHX(i+1)/2,BBX(i+2)/2,HHX(i+2)/2*enddo*do,i,kp_numtwo,kp_numthree-1lsel,u,real,1,150lstr,i,i+1latt,i-1,i-1,i-1lesize,all,1,1lmesh,allallsel,all*enddoesel,u,real,1,kp_numtwo-2cm,downtower,elemallsel,allcmsel,s,downtower*get,emin_tx,ele

15、m,0,num,min*get,emax_tx,elem,0,num,maxallselkp_tx=emax_tx-emin_tx+1esel,all,allcm,tower,elemlsel,s,real,kp_numone,kp_numthree-2lsymm,z,all,100allsel,all*set,kp_numfour,kp_numone+2*kp_tx+100+1 !主梁的第一個關(guān)鍵點號!esel,s,ename,beam44!tunif,0!tref,-30!allsel,all/com,couple the tower upside and tower downcerig,

16、node(kx(38),ky(38),kz(38),node(kx(39),ky(39),kz(39),all,cerig,node(kx(38),ky(38),kz(38),node(kx(139),ky(139),kz(139),all,*set,beam_height,1.2725-0.3 !主梁節(jié)點即錨固點到原點的距離!*set,kp_numfour,kp_numone+2*(kp_tx+1)+100+1 !主梁的第一個關(guān)鍵點號*set,kp_numfour_inc,210 !主梁的關(guān)鍵點數(shù)目-1*set,kp_numfive,kp_numfour+kp_numfour_inck,kp

17、_numfour,beam_heightk,kp_numfive,105,beam_heightkfill,kp_numfour,kp_numfive*do,i,1,kp_numfour_inclstr,kp_numfour+i-1,kp_numfour+i*enddo*set,enum_beam,emax_tx+1et,enum_beam,beam188mp,ex,enum_beam,3.5e10mp,prxy,enum_beam,0.0.167mp,dens,enum_beam,3038.8 !考慮到二期恒載后的換算密度mp,alpx,enum_beam,1e-05 !定義混凝土的線膨脹系

18、數(shù)KEYOPT,enum_beam,7,2keyopt,enum_beam,8,3keyopt,enum_beam,9,3SECTYPE,1,BEAM,MESH,sec1SECOFFSET,user,-1.40 !截面讀入時主梁的平移SECREAD,'main_beam','SECT',' ',MESHk,5000,1000000lsel,u,real,1,200latt,enum_beam,enum_beam,enum_beam,5000,1lesize,all,1,1lmesh,allallsel,allesel,s,ename,beam18

19、8cm,main_beam,elemallsel,all/com,create the cable element*set,enum_link,enum_beam+1 !拉索的開始單元號*dim,cable_area,13 !定義拉索單元的面積數(shù)組*dim,cable_istrain,13 !定義拉索單元的初始應(yīng)變數(shù)組*dim,cable_dens,13/com,define the angle of all cable*set,cable_area1,1.668E-03 *set,cable_area2,1.668E-03 *set,cable_area3,2.6410E-03*set,ca

20、ble_area4,2.6410E-03*set,cable_area5,2.6410E-03*set,cable_area6,2.6410E-03*set,cable_area7,3.0580E-03*set,cable_area8,3.0580E-03*set,cable_area9,3.0580E-03*set,cable_area10,3.7530E-03*set,cable_area11,3.7530E-03*set,cable_area12,3.7530E-03*set,cable_area13,3.7530E-03*set,cable_area_back,2.0155E-02*s

21、et,cable_area(1),cable_area1*set,cable_area(2),cable_area2*set,cable_area(3),cable_area3*set,cable_area(4),cable_area4*set,cable_area(5),cable_area5*set,cable_area(6),cable_area6*set,cable_area(7),cable_area7*set,cable_area(8),cable_area8*set,cable_area(9),cable_area9*set,cable_area(10),cable_area10

22、*set,cable_area(11),cable_area11*set,cable_area(12),cable_area12*set,cable_area(13),cable_area13*set,cable_dens(1),13.2/cable_area1*set,cable_dens(2),13.2/cable_area2*set,cable_dens(3),20.9/cable_area3*set,cable_dens(4),20.9/cable_area4*set,cable_dens(5),20.9/cable_area5*set,cable_dens(6),20.9/cable

23、_area6*set,cable_dens(7),24.2/cable_area7*set,cable_dens(8),24.2/cable_area8*set,cable_dens(9),24.2/cable_area9*set,cable_dens(10),29.7/cable_area10*set,cable_dens(11),29.7/cable_area11*set,cable_dens(12),29.7/cable_area12*set,cable_dens(13),29.7/cable_area13*set,cable_dens_back,159.5/cable_area_bac

24、k*set,cable_istrain1,0.26032E-02 *set,cable_istrain2,0.25568E-02*set,cable_istrain3,0.23210E-02*set,cable_istrain4,0.23456E-02*set,cable_istrain5,0.23892E-02*set,cable_istrain6,0.24412E-02*set,cable_istrain7,0.28199E-02*set,cable_istrain8,0.28719E-02*set,cable_istrain9,0.29143E-02*set,cable_istrain1

25、0,0.28321E-02*set,cable_istrain11,0.28559E-02*set,cable_istrain12,0.28743E-02*set,cable_istrain13,0.28926E-02cable_back_istrain1=0.32891E-02cable_back_istrain2=0.33661E-02*set,cable_istrain(1),cable_istrain1*set,cable_istrain(2),cable_istrain2*set,cable_istrain(3),cable_istrain3*set,cable_istrain(4)

26、,cable_istrain4*set,cable_istrain(5),cable_istrain5*set,cable_istrain(6),cable_istrain6*set,cable_istrain(7),cable_istrain7*set,cable_istrain(8),cable_istrain8*set,cable_istrain(9),cable_istrain9*set,cable_istrain(10),cable_istrain10*set,cable_istrain(11),cable_istrain11*set,cable_istrain(12),cable_

27、istrain12*set,cable_istrain(13),cable_istrain13/com,create the kps of croSSbeams*set,w5,5.35 !橫梁到主梁中心的距離*do,i,1,13k,kp_numfour+i*14+400+12,i*7+6,beam_height,-w5k,kp_numfour+i*14+800+12,i*7+6,beam_height,w5*enddo!定義拉索單元*do,i,1,13et,enum_link+i-1,link10 mp,ex,enum_link+i-1,2.0e11mp,prxy,enum_link+i-1,

28、0.3mp,dens,enum_link+i-1,cable_dens(i)!mp,alpx,enum_link+i-1,1.5e-05 !定義索(鋼材)的線膨脹系數(shù)lsel,u,real,1,1000r,i+enum_link-1,cable_area(i),cable_istrain(i)lstr,30-2*(i-1),kp_numfour+i*14+400+12lstr,30-2*(i-1),kp_numfour+i*14+800+12latt,enum_link+i-1,enum_link+i-1,enum_link+i-1lesize,all,1,1lmesh,alllsel,all

29、*enddo/com,create the back cables*set,enum_back_cable,enum_link+13et,enum_back_cable,link10mp,ex,enum_back_cable,2.0e11mp,prxy,enum_back_cable,0.3mp,dens,enum_back_cable,cable_dens_backr,enum_back_cable,cable_area_back,cable_back_istrain1lsel,u,real,1,enum_back_cable-1k,3001,-45,k,3002,-45+2.956lstr,3001,10latt,enum_back_cab