计算桥梁的温度效应首先要建立其ansys结构模型。在静力分析中，本桥的混凝土结构用Solid186单元模拟，预应力筋用Link180单元模拟。在热分析中，混凝土结构用Solid90单元模拟，预应力筋用Link33单元模拟。建立的模型为最大悬臂阶段模型。 4.1.1混凝土结构建模
命令流如下：
fini /clear /prep7
/title,theanalysisofganggoubridge et,1,solid186 et,2,link180
mp,dens,1,2.6e-5 mp,ex,1,3.5e6 mp,prxy,1,0.1667
mp,dens,2,7.8e-5 mp,ex,2,1.95e7 mp,prxy,2,0.3
areagjx=1.4 *dim,gjarea,array,3 gjarea(1)=12*areagjx gjarea(2)=15*areagjx gjarea(3)=17*areagjx
F=195.5e3 E=1.95e7 L=100
detL=F*L/(E*areagjx) istrn=detL/(detL+L) r,1
r,2,gjarea(1),istrn r,3,gjarea(2),istrn r,4,gjarea(3),istrn acel,,980
k,1,0,0,-600 k,2,0,0,0 k,3,0,-15,-600
k,4,0,-28,-475 k,5,0,-68,-325 k,6,0,-700,-325 k,7,0,-90,-255 k,8,0,-50,-105 k,9,0,-50,0 k,10,0,-510,-255 k,11,0,-550,-215 k,12,0,-550,0 k,13,0,-700,0 l,1,2 l,1,3 l,3,4 l,4,5 l,5,6 l,6,13 l,7,8 l,8,9 l,7,10 l,10,11 l,11,12 l,2,9 l,12,13 al,all
voffst,1,300!01号
k,27,300,-28,0 k,28,300,-28,-105 k,29,300,-68,-255 a,15,27,28,29,24,25,26,14
k,38,300,-550,-255 k,39,300,-700,-255 k,40,450,-68,-325
k,41,450,-68,-255 k,42,450,-676.2,-255 k,43,450,-676.2,-325
v,24,29,39,23,40,41,42,43!02号腹板
k,44,450,-576.2,0 k,45,450,-576.2,-255 k,46,450,-676.2,0
v,21,38,39,22,44,45,42,46!02号底板
k,2000,450,-536.2,-255 k,2001,450,-576.2,-215
v,19,20,38,2000,2001,45!02号箱
k,47,600,-68,-325 k,48,600,-68,-255 k,49,600,-653.1,-255 k,50,600,-653.1,-325
v,41,40,43,42,48,47,50,49!03号腹板
k,51,600,-556.8,0 k,52,600,-556.8,-255 k,53,600,-653.1,0
v,44,45,42,46,51,52,49,53!03号底板
k,2002,600,-516.8,-255 k,2003,600,-556.8,-215
v,2000,2001,45,2002,2003,52!03号箱
k,54,900,-68,-255 k,55,900,-68,-325 k,56,900,-608.7,-325 k,57,900,-608.7,-255
v,48,47,50,49,54,55,56,57!1号腹板
k,58,900,-519.5,0 k,59,900,-519.5,-255 k,60,900,-608.7,-255 k,61,900,-608.7,0
v,51,52,49,53,58,59,60,61!1号底板
k,2004,900,-479.5,-255 k,2005,900,-519.5,-215
v,2002,2003,52,2004,2005,59!1号箱
k,62,1200,-68,-255 k,63,1200,-68,-325 k,64,1200,-567.0,-325 k,65,1200,-567.0,-255
v,54,55,56,57,62,63,64,65!2号腹板
k,67,1200,-484.4,0 k,68,1200,-484.4,-255 k,69,1200,-567.0,-255 k,70,1200,-567.0,0
v,58,59,60,61,67,68,69,70!2号底板
k,2006,1200,-444.4,-255 k,2007,1200,-484.4,-215
v,2004,2005,59,2006,2007,68!2号箱
k,71,1500,-68,-255 k,72,1500,-68,-325 k,73,1500,-527.8,-325 k,74,1500,-527.8,-255
v,62,63,64,65,71,72,73,74!3号腹板
k,75,1500,-451.5,0 k,76,1500,-451.5,-255 k,77,1500,-527.8,-255 k,78,1500,-527.8,0
v,67,68,69,70,75,76,77,78!3号底板
k,2008,1500,-411.5,-255 k,2009,1500,-451.5,-215
v,2006,2007,68,2008,2009,76!3号箱
k,79,1800,-68,-255 k,80,1800,-68,-325 k,81,1800,-491.2,-325 k,82,1800,-491.2,-255
v,71,72,73,74,79,80,81,82!4号腹板
k,83,1800,-420.7,0 k,84,1800,-420.7,-255 k,85,1800,-491.2,-255 k,86,1800,-491.2,0
v,75,76,77,78,83,84,85,86!4号底板
k,2010,1800,-380.7,-255 k,2011,1800,-420.7,-215
v,2008,2009,76,2010,2011,84!4号箱
k,87,2100,-68,-265 k,88,2100,-68,-325 k,89,2100,-457.2,-325 k,90,2100,-457.2,-265
v,79,80,81,82,87,88,89,90!5号腹板
k,91,2100,-392.1,0 k,92,2100,-392.1,-265 k,93,2100,-457.2,-265 k,94,2100,-457.2,0
v,83,84,85,86,91,92,93,94!5号底板
k,2012,2100,-352.1,-265 k,2013,2100,-392.1,-225
v,2010,2011,84,2012,2013,92!5号箱
k,95,2400,-68,-275 k,96,2400,-68,-325 k,97,2400,-425.8,-325 k,98,2400,-425.8,-275
v,87,88,89,90,95,96,97,98!6号腹板
k,99,2400,-365.8,0 k,100,2400,-365.8,-275 k,101,2400,-425.8,-275 k,102,2400,-425.8,0
v,91,92,93,94,99,100,101,102!6号底板
k,2014,2400,-325.8,-275 k,2015,2400,-365.8,-235
v,2012,2013,92,2014,2015,100!6号箱
k,103,2700,-68,-275 k,104,2700,-68,-325 k,105,2700,-396.9,-325 k,106,2700,-396.9,-275
v,95,96,97,98,103,104,105,106!7号腹板
k,107,2700,-341.5,0
k,108,2700,-341.5,-275 k,109,2700,-396.9,-275 k,110,2700,-396.9,0
v,99,100,101,102,107,108,109,110!7号底板
k,2016,2700,-301.5,-275 k,2017,2700,-341.5,-235
v,2014,2015,100,2016,2017,108!7号箱
k,111,3100,-68,-275 k,112,3100,-68,-325 k,113,3100,-362.5,-325 k,114,3100,-362.5,-275
v,103,104,105,106,111,112,113,114!8号腹板
k,115,3100,-312.5,0 k,116,3100,-312.5,-275 k,117,3100,-362.5,-275 k,118,3100,-362.5,0
v,107,108,109,110,115,116,117,118!8号底板
k,2018,3100,-272.5,-275 k,2019,3100,-312.5,-235
v,2016,2017,108,2018,2019,116!8号箱
k,119,3500,-68,-275 k,120,3500,-68,-325 k,121,3500,-332.7,-325 k,122,3500,-332.7,-275
v,111,112,113,114,119,120,121,122!9号腹板
k,123,3500,-287.5,0 k,124,3500,-287.5,-275 k,125,3500,-332.7,-275 k,126,3500,-332.7,0
v,115,116,117,118,123,124,125,126!9号底板
k,2020,3500,-247.5,-275 k,2021,3500,-287.5,-235
v,2018,2019,116,2020,2021,124!9号箱
k,127,3900,-68,-275 k,128,3900,-68,-325 k,129,3900,-307.4,-325