shell 과 beam 요소를 이요하여
다리 모델링 한 input file 하나 올립니다.
/prep7
et,1,4
et,2,8
et,3,43
r,1,1120,1.3e8,1.8e8,60,112 ! tower
rmore,,1900
hst=96 ! height of stiffening girders
r,2,238,61000,hst**3*10/12,hst,75 !
rmore,,140
r,3,124.7 ! hanging cables
r,4,4.7 ! suspenders
r,5,.7 ! bridge deck
mp,ex,1,30e6
mp,dens,1,0.00073
mp,ex,2,30e6
mp,dens,2,0.00073*2 ! denser to account for paving matls and bracing
n,1
towr=240*12 ! height of tower above roadway is 240 feet
hcs=1400*12 ! half of central span is 1400 feet
n,11,hcs
fill ! 11 nodes filling half the span
ss=1100*12 ! side spans are 1100 feet
n,21,hcs+ss
fill
! approximate the cables with parabolas
xincc=hcs/10
xincs=ss/10
*do,i,1,11
xc= (i-1)*xincc
zz=towr*(xc/hcs)**2+50 ! parabolic curve
n,i+50,xc,,zz
xs= (i-1)*xincs
zz=towr*(1.0-xs/ss)**1.25+50
n,i+60,hcs+xs,,zz
*enddo
n,100,hcs,,-180*(12) ! distance from top of foundation to
! roadway. (foundation sticks out of water)
nlis,all
! Tower
e,100,11
e,11,61
! stiffening truss
real,2
e,1,2
egen,20,1,-1
! Hanging cable
type,2
real,3
e,51,52
egen,20,1,-1
! Suspenders
real,4
e,1,51
egen,20,1,-1
elis,all
edel,53 ! remove suspender along tower to avoid compression
nsym,x,100,all
esym,,100,all
ngen,2,200,1,200,1,,70*12
egen,2,200,all
! Cross members of tower
type,1
real,1
e,11,211
e,61,261
e,111,311
e,161,361
! Bridge deck
type,3
real,5
mat,2
e,1,2,202,201
egen,20,1,-1
e,102,101,301,302
egen,20,1,-1
nummrg,node
/VUP,1,Z
/view,1,1,1,1
eplot
- 이성철 -
다리 모델링 한 input file 하나 올립니다.
/prep7
et,1,4
et,2,8
et,3,43
r,1,1120,1.3e8,1.8e8,60,112 ! tower
rmore,,1900
hst=96 ! height of stiffening girders
r,2,238,61000,hst**3*10/12,hst,75 !
rmore,,140
r,3,124.7 ! hanging cables
r,4,4.7 ! suspenders
r,5,.7 ! bridge deck
mp,ex,1,30e6
mp,dens,1,0.00073
mp,ex,2,30e6
mp,dens,2,0.00073*2 ! denser to account for paving matls and bracing
n,1
towr=240*12 ! height of tower above roadway is 240 feet
hcs=1400*12 ! half of central span is 1400 feet
n,11,hcs
fill ! 11 nodes filling half the span
ss=1100*12 ! side spans are 1100 feet
n,21,hcs+ss
fill
! approximate the cables with parabolas
xincc=hcs/10
xincs=ss/10
*do,i,1,11
xc= (i-1)*xincc
zz=towr*(xc/hcs)**2+50 ! parabolic curve
n,i+50,xc,,zz
xs= (i-1)*xincs
zz=towr*(1.0-xs/ss)**1.25+50
n,i+60,hcs+xs,,zz
*enddo
n,100,hcs,,-180*(12) ! distance from top of foundation to
! roadway. (foundation sticks out of water)
nlis,all
! Tower
e,100,11
e,11,61
! stiffening truss
real,2
e,1,2
egen,20,1,-1
! Hanging cable
type,2
real,3
e,51,52
egen,20,1,-1
! Suspenders
real,4
e,1,51
egen,20,1,-1
elis,all
edel,53 ! remove suspender along tower to avoid compression
nsym,x,100,all
esym,,100,all
ngen,2,200,1,200,1,,70*12
egen,2,200,all
! Cross members of tower
type,1
real,1
e,11,211
e,61,261
e,111,311
e,161,361
! Bridge deck
type,3
real,5
mat,2
e,1,2,202,201
egen,20,1,-1
e,102,101,301,302
egen,20,1,-1
nummrg,node
/VUP,1,Z
/view,1,1,1,1
eplot
- 이성철 -
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