VIGA BPR L=
• Luz del puente :
30
[m]
INTRODUCIR DATO
• Altura de la la viga viga BPR :
hBPR
≥/20
&BPR =
1.5
&BPR =
150
[m] [cm]
!# ##
5 4
4
#"#
%# !" &'N'viga
3
$
%! 2
#"! #!
2
!!
A!"#:
$iga BPR
%
& = ,t = tt = t-t =
15'.(0 55.)) 1'.+0 3.)1
escoger la viga optma [cm] [cm] [cm] [cm]
,, = t, = t-, = ,- =
50.)0 1*.51 1+.+) '0.00
[cm] [cm] [cm] [cm]
AL/L" 2/!R" 4A# PR"PA#
G&O(&TRIA D& )A VIGA BPR * D& +,P,
!# 1'.+0 [cm] 3.)1
[cm]
55.)) [cm]
A
- ## C
- #"#
C
!2
[cm 1+.%( ]
!3 1+.%( [cm]
!" '0.00 [cm]
$-
B
15.(0 [cm]
15.(0 [cm]
!4 1+.+) [cm]
- #"!
1*.51 [cm]
- #!
!5 D
D
&
15'.(0 [cm]
!! -
50.)0 [cm]
• Re6umen de dat76 $iga BPR 10 : & = ,t = tt = t-t =
15'.(0 55.)) 1'.+0 3.)1
• eterminam76 8cg8 :
[cm] [cm] [cm] [cm]
,, = t, = t-, = ,- =
50.)0 1*.51 1+.+) '0.00
[cm] [cm] [cm] [cm]
_=(Ʃ 〖〗 _ ∗_)/(Ʃ_ )
&leme.#o
%ci 0cm1
Ai 0cm1
%ci Ai 0cm1
A B
1(*.05 +).11 13).(3 ''.((
+0%.*) '(*3.)0 *).35 '+3.)1
103*().1) 1%'(35.10 %(*1.)) *1(3.(3
).'*
)3).+1
*%'3.53
/
(35(.35
31)*1'.13
cg =
+3.1+
[cm]
• eterminam76 8t8 9 8,8 :
%#
$&'N'viga
%!
15'.(0 [cm]
_=_
_=ℎ −_
t =
+%.'3
[cm]
27ta: ee
• eterminam76 m;dul76 re6i6tente6 de la 6ecci;n :
_=/_
6
_=/_
< nercia : Rectngul7
!ringul7
_=(∗ℎ^ 3)/12
_=(∗ℎ^ 3)/36
&leme.#o
%"ci 0cm1
Icgi 0cm1
%"ci Ai 0cm1
A B
+'.)) (.%3 *5.'* 50.+3
%53).*( 3115)3%.+* 55.1' ()0).)+
3+*%33'.5* 5%%+).** '%10%0.'% +0(+)5.*)
Ii 0cm1 3++))+1.1% 31+5)1).(' '%11(5.(1 +0%5%(.5*
*(.%'
1%051.'*
353(3%'.)(
3553(((.10 /-
& = ,t = tt = t-t = nt7nce6
15'.(0 55.)) 1'.+0 3.)1
[cm] [cm] [cm] [cm]
,, = t, = t-, = ,- =
>t =
1(5'*0.%5 [cm?]
>, =
15+')+.') [cm?]
1150))+3.*% 50.)0 1*.51 1+.+) '0.00
[cm] [cm] [cm] [cm]
• Re6@men de la6 caracter6ca6 de la viga BPR :
& = A = = t = , = >t = >, =
15'.(0 (35(.35 CCC +%.'3 +3.1+ 1(5'*0.%5 15+')+.')
[cm] [cmD] [cmE] [cm] [cm] [cm?] [cm?]
& = A = = t = , = >t = >, =
1.5'( 0.(35( 0.1150))+( 0.+%'3 0.+31+ 1(5'*0.%5 15+')+.')
[m] [mD] [mE] [m] [m] [cm?] [cm?]
, N a g i V
2 3 4 5 ; < = > *
$ +1.1' )1.') %1.(( 101.*0 111.+* 111.+* 1'1.%' 13+.1* 15'.(0 1+'.+'
!# 3).10 3).10 (0.*( (3.1) (5.+' 3).10 (3.1) ().'* 55.)) *3.50
## 11.11 11.11 10.)0 10.() 10.1* 11.11 10.() %.)( 1'.+0 1'.0+
1%).1'
*).5)
11.+5
TAB)A 7&CCION&7 8BPR8 Dime.sio.es 9e la secci:. 0m1 #"# !! '.)* (5.+' '.)* (5.+' 3.1) (5.+' 3.(% (5.+' 3.)1 (5.+' '.)* 50.)0 3.(% 50.)0 (.13 50.)0 3.)1 50.)0 (.(5 55.)) (.+*
55.))
#! 10.1* 10.1* 10.1* 10.1* 10.1* 1*.51 1*.51 1*.51 1*.51 15.'( 15.'(
#"! 15.'( 15.'( 15.'( 15.'( 15.'( 1+.+) 1+.+) 1+.+) 1+.+) 1%.05
!" '0.00 '0.00 '0.00 '0.00 '0.00 '0.00 '0.00 '0.00 '0.00 '0.00
1%.05
'0.00