用ANSYS如何建模：一个两跨箱梁连续梁桥，变截面的，而且梁截面高度是按抛物线变化？

finish
/clear
/prep7
et,1,beam188
!定义材料
mp,ex,3,3.45e10 !C50混凝土弹性模量
mp,prxy,3,0.2 !C50混凝土泊松比
mp,dens,3,2600 !C50混凝土密度，单位Kg/m3

!创建截面
sectype,7,beam,hrec,ztN,2$secdata,12,8.2,1.4,1.4,1.2,1.2 !主塔N截面，编号7
sectype,8,beam,hrec,ztI,2$secdata,9.88,4.6,1.4,1.4,1.2,1.2 !主塔I截面，编号8
sectype,9,beam,hrec,ztD,2$secdata,7.2,4.6,1.0,1.0,1.2,1.2 !主塔D截面，编号9
sectype,10,beam,hrec,ztB,2$secdata,4.6,7.2,0.9,0.9,1.2,1.2 !主塔B截面，编号10
!创建主塔变截面

sectype,16,taper$secdata,7,213,-11.1,-63.302$secdata,8,213,-17.3,-8.302 !第一个变截面，编号16

sectype,17,taper$secdata,8,213,-17.3,-8.302$secdata,9,213,-12.6,61.918 !第二个变截面，编号17
n,1,213,-11.1,-63.302
n,2,213,-17.3,-8.302
n,3,213,-12.6,61.918
type,1
mat,3
secnum,16
e,1,2
secnum,17
e,2,3
finish

可以用实体单元建模，求解结果更准确。