Construccion i Cap- Acero de (1)

7/25/2019 Construccion i Cap- Acero de (1)

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CONSTRUCCION I

CAPITULO :

ACERO DE REFUERZO


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1. CONCEPTOS GENERALES

2. ALMACENAMIENTO Y LIMPIEZA

3. HABILITACION

4. COLOCACION5. ELEMENTOS EMBEBIDOS EN ELCONCRETO

6. DETALLES TIPICOS PARAAMPLIACION DE ESTRUCTURAS


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6.1 CONCEPTOS GENERALES

En e Pe!" e #$e!% &e !e'(e!)% e* '#+!,$#&% -%!SIDERPERU ACEROS ARE/UIPA0 e*#n&%en #+%* $#*%* n%!#,)#&%* $(-,en&%

$%n # $#,& -#!# # (e *e '#+!,$#n.

Se !e(,e!e -#!# %* #$e!%* &e !e'(e!)% en e

$%n$!e% #!#&%70 (e $(-#n $%n %*!e(,*,%* &e !e*,*en$,# 8,e &e '(en$,#0$#-#$,& &e &%+#&% en '!8%0 *%+,,& %!%*.


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S#9% e #$e!% ,*% &e 0 e !e*% &e &,;e!%*(*#&%* *%n &e #$e!% $%!!(e!en$,# en!e e $%n$!e% e#$e!%.

D# # $%-%*,$,?n (8,$# #$(# &e n(e*!%#$e!% &e !e'(e!)% % #$e!% &e $%n*!($$,?n n% *e!e$%,en&e e e-#e -%! *%&(!#0 -%! e!e#,9#ene #% $%nen,&% &e $#!+%n% &e#$e!% '#+!,$#&% en e Pe!".


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De+e ene!*e e*-e$,# $(,&% en e (*% &e

##+!?n ,*% &e 1@40 -%!(e *e $%e!$,#,)###+!e !e',#&% $%n &,;e!%* en%!e*0>#$,n&%%* -#*#! -%! 0 $%% *, &,$>#e&, '(e*e (n n%+!e % &en%,n#$,?n0 n%

,n&,$;n&%*e (e e* &e 4.50 5. ? 5.5 .

E !e',#&% en '!8% %!,% &e (*#! #$e!% &e en%!&,;e!% (e e ,n&,$#&% en e -!%e$%.


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De+e%* !e$%!! (e e #$e!% &e !e'(e!)%,ene %!# $%-%*,$,?n (8,$#0 (e !e*-%n&e #

%!#* $#!#$e!8*,$#* $n,$#* ne$e*#!,#* &ee-e#&% en e*!($(!#* e;,$#*0 %+9,#ene en $#!-,ne!8# e;,$#.

L#* $#!#$e!8*,$#* $n,$#* *%n %*!#* en>%=#* #&=(n#*0 *,n e+#!


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Se $%e!$,#,)# e #$e!% &e !e'(e!)% en -(#$e 9#!,%* #%*0 %* &,*e#&%!e* *,


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En %* -#n%* &e e*!($(!#* &e+e ,n&,$#!*e

-%! % en%*: Re*,*en$,# # # $%-!e*,?n &e $%n$!e%: '$.

E*'(e!)% &e '(en$,# &e #$e!%: '

Re*,*en$,# &e e!!en%: Re*,*en$,# &e # #+#,e!8#: '

T,-% &e #+#,e!8# ,-% &e %!e!%.

S%+!e$#!


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De+e !e$%!!*e (e en $#*% &e &,*$!e-#n$,#: en#$en$%n*#neene en$,?n # #* n%!#* (e *%n%',$,#ene #$e-#*0 -%! $%n*,


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17 # 9#!,#$,?n -e!,*,+e &e -e*% n% e$e 6J &e

n%,n#.

27 E*%* &,;e!%* *%n '#+!,$#&%* # # %!&en -%! SIDERPERU.

37 E -%!$en#=e &e &e*-e!&,$,%* e* (n# #-!%,#$,?nKen %&% $#*% e* (n 9#%! (e #*(e $# e-!e*# %en,&0 *, e* (e ( &,'8$, e9#(#!%0 -#!# (n $#*%

-#!,$(#! &ee!,n#&%.


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6.2 ALMACENAMIENTO Y

LIMPIEZA

Se ##$en#!; en ( C(#n&% >## &e%!# en e 9#$,#&% &e

$%n$!e%0 # #!#&(!# # $%%$# *e,n*-e$$,%n#!; n(e9#ene *e 9%9e!; #,-,#! $(#n&% *e# ne$e*#!,%.


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En e %en% &e $%%$#! e $%n$!e% e!e'(e!)% &e+e e*#! ,+!e &e %&%0 #$e,e ( %!%*

!e$(+!,,en%* n% e;,$%* (e -(en#'e$#! #&9e!*#ene *( $#-#$,& &e#&>e!en$,#.

E #$e!% &e !e'(e!)% $%n %,&%0 % $%n e*$##*&e #,n#$,?n0 *e!; $%n*,&e!#&% *#,*'#$%!,% *,(n# (e*!# &e e0 ,-,# $%n e*$%+,# &e

#$e!%0 ,ene #* &,en*,%ne*0 ,n$(en&% ##(!# &e $%!!(


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6.3 HABILITACION DEL ACERO DE

REFUERZO

Se &e+e $%!#! &%+#! &e #$(e!&% # #*,n&,$#$,%ne* &e %* -#n%* @% n%!#* 9,


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L#* 9#!,#* (e >#n *,&% &%+#*0 n%-%&!;n *e! en&e!e)#*0 n, -%&!;n&%+#!*e *,n e,,n#! -!e9,#ene #)%n# (e '(e *%e, # e*e -!%$e*%0*#9% en &ee!,n#&%* $#*%* $%n#(%!,)#$,?n &e # *(-e!9,*,?n. $%% ene $#*% &e #$e!% en -#$#* (e -#*# #

*e! e !e'(e!)% &e %*#*.


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6.3.1 TOLERANCIAS

#7 A % #!


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+7 En #* &,en*,%ne* e!e#* &e e*!,+%*0#n,% e*-,!#e*: 1.25 $.


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$7 O!%* &%+e$e*: 2.5$.


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6.3.2 GANCHO STANDARD

S,


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6.3.3 DIAMETRO MINIMO DE

DOBLADO

E &,;e!% 8n,% &e &%+#&% e&,&% # ,ne!,%! &e #+#!!#0 e$e-% en e $#*% &e e*!,+%*0 n% *e!; en%! (e:

- P#!# +#!!#* &e 3@ # 1 : 6 +.

- P#!# +#!!#* #%! # 1 : b.


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P#!# e $#*% &e e*!,+%* e &,;e!% 8n,%&%+#&%0 e&,&% en e ,ne!,%! &e # +#!!#0 n%*e!; en%! &e 4 + -#!# 5@ 0 *, e&,;e!% e* #%! *e #-,$#!;n %* 9#%!e* &e-;!!#'% #ne!,%!.

T%&%* %* &%+#&%* *e >#!;n en '!8%0 # en%*

(e >## ,n&,$#$,?n $%n!#!,# &e -!%e$,*#.


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6.4COLOCACION DEL ACERO DEREFUERZO

L# $%%$#$,?n *e!; e'e$(# &e #$(e!&% # %*-#n%* % ,n&,$#&% # $%n,n(#$,?n:

6.4.1 TOLERANCIAS

#7 D,*#n$,# 8n,# # # *(-e!',$,e: .5 $.

+7 M8n,% e*-#$,#,en% en!e 9#!,#*: .5$.


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$7 #!,#* *(-e!,%!e* en %*#* 9,


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&7 En e $!($e &e eeen%* e*!($(!#e*: 5.$.

e7 En # %n


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6.4.2 RECUBRIMIENTOS DEL ACERO DE REFUERZO

L# '(n$,?n &e !e$(+!,,en% e* -!%e


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P#!# $%n$!e% 9#$,#&% ,n *,( *e !e$%,en%* *,


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B#!!#* &e 5@ % en%!e*: 4$. B#!!#* &e V % #%!e* : 5$.

3 C%n$!e% n% e-(e*% # ,ne-e!,*% n, en$%n#$% $%n e e!!en%:

L%*#*0 #,


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En #+,ene* $%!!%*,9%* % en %!#* $%n&,$,%ne**e9e!#* &e e-%*,$,?n &e+e #(en#!*e e

!e$(+!,,en%0 en,en&% en $(en# # &en*,& -%!%*,& &e $%n$!e%K en $#*% $%n!#!,%&e+e e-e#!*e %!% *,*e# &e -!%e$$,?n0 en*,(#ne,&.


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C(#n&% e,*e (n !,e*


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6.4.3 ESPACIAMIENTO DELREFUERZO

L# &,*#n$,# 8n,# ,+!e en!e +#!!#*-#!#e#* &e !e'(e!)% $%%$#* en (n# $#-#*e!; #%! % ,


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n%,n# &e # +#!!# +7. 2.5 $.

4@3 9e$e* e ##% n%,n# &e #

E*# (,# $%n&,$,?n -(e&e %+9,#!*e *, #$!,e!,% &e # *(-e!9,*,?n # !#+#=#+,,& &e

$%n$!e% %* %&%* &e $%n*%,$,?n *%n#e* (e -e!,en (e e $%n$!e% *e $%%(e*,n $#n


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C(#n&% e !e'(e!)% -#!#e% *e $%%$# en &%* %#* $#-#*0 # &,*#n$,# ,+!e en!e $#-#* &e+e*e! n% en%* &e 2.5 $.

En $%(n#* $%n e*!,+%* % $%n e*-,!#e*0 #&,*#n$,# ,+!e en!e +#!!#* %n


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6.4.4 EMPALME POR TRASLAPE DELACERO DE REFUERZO

C%n*,&e!# %* $;$(%* &e %n


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P%! #n% e* -!e'e!,+e e*$%


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L%* e-#e* ,enen #+,n %n


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A $%n,n(#$,?n # %&% &e e=e-% 9#%* # !9#!,%* $(#&!%* &%n&e *e ,n&,$# %* !#*#-e*-#!# #$e!%


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N% *e -e!,,!; *%! #* 9#!,#* (e *e,ne!*e$en "n,$#ene $%n # ',n#,& &e*(=e#! e #$e!% &e !e'(e!)%0 *#9% (e %#(%!,$e # *(-e!9,*,?n % e -!%e$,*#.

L# ## *% &e ##+!e ,*% e-e#$%% !e'(e!)% &e+e $(-,! # n%!# ASTM A15.


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L#* ,ne!*e$$,%ne* *%* n% &e+en

e*-#$,#!*e #* &e 3 $. en # &,!e$$,?n &e #'(e!)# $#$(# e$e-% -#!# ##+!e*(,,)#&%* $%% e*!,+%*.

L# ## *% &e ##+!e $%!!(


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L#* ,ne!*e$$,%ne* *%* n% &e+ene*-#$,#!*e #* &e 4 $ . En # &,!e$$,?n &e #'(e!)# $#$(# e$e-% -#!# ##+!e*e-e#&%* $%% e*!,+%*.

L%* !#+#=%* &e *%&(!# *e!;n !e#,)#&%* -%!#n% &e %+!# e*-e$,#,)# #-!%+#&% -%! #*(-e!9,*,?n0 e* !e$%en+e >#$e! (ne#en &e $%-een$,#.


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6.5 ELEMENTOS EMBEBIDOS EN EL

CONCRETO

L#* e*!($(!#* &e $%n$!e% #!#&% -(e&en

ene! eeen%* &en!% &e e+e+,&%*70 %&%*e%* &e+en e*#! (+,$#&%* en *( -%*,$,?n ',n##ne* &e # $%%$#$,?n &e $%n$!e%0 e*%*eeen%* n% &e+en &,*,n(,! # !e*,*en$,# &e

#* e*!($(!#*.


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L%* #e!,#e* $%n (e *e '#+!,$#n %*eeen%* e+e+,&%* n% &e+en -%&e!!e#$$,%n#! (8,$#ene $%n e*e n, #'e$#!e*en '%!# #


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6.6 DETALLES TPICOS PARA AMPLIACIN DE ESTRUCTURAS

Se ,ene 2 $#*%*:

[ LA AMPLIACIN ERTICAL:

E* &e$,! -#!# $%(n#* -#$#*K *e en&!; (e&e=#! -%! % en%* # %n


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Se -%&!8# %-#! #+,n -%! $(+!,!# $%n-;*,$%0 % $%n +%*#* &e -#-e e=%! #*en9%(!#* &e $een%7.

S,n e+#!


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C(#n&% *e ne$e*,e !e#,)#! # #-,#$,?n *e-,$#!; e $%n$!e% -%+!e0 *e !#*#-#!; ##!#&(!# *e -!%$e&e!; $%n'%!e % ,n&,$#&%

-#!# =(n#* en eeen%* 9e!,$#e*0enen&,n&%*e (e e ,e-% !#n*$(!!,&% >#!e-!e*en#&% -%! % en%* ## &e #


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E9en(#ene *e #$e-#!8# e e-#e -%!*%&(!#0 $%n # *#9e& &e # n%*%+,,& &e #$e!% &e !e'(e!)% '#+!,$#&%

#$(#ene en e Pe!"0 en $(#(,e! $#*% *(&,',$(#& en e $>e(e% &e en


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E* &e$,! -#!# 9,


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ESTOS

ESQUEMASPUEDEN SER

LAS

SOLUCIONESADOPTADAS

POR EL

PROYECTISTA


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D#&% e ,e-% !#n*$(!!,&% en!e (n% %!%9#$,#&% *e &e+e #-,$#! !e*,n# e-%,$# en #(n,?n -!e9,# ,-,e)# &e # )%n# # e-##!.

En $(#(,e!# &e %* $#*%* *, # #-,#$,?n e*#-!e9,*# en e -!%e$% &e+e %*!#!*e #n% e&e#e $%% #* e*-e$,',$#$,%ne* $n,$#*0 *, n%% '(e!# &e+e *%,$,#!*e # -!%e$,*#.

.


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ACTUALIZACIN:

T!e* -(n%* ,-%!#ne* e*;n ,nn%9#&% #,n&(*!,# &e # $%n*!($$,?n en % !e'e!ene #

#$e!% &e !e'(e!)%0 %&%* ,-een#&%* -%!A$e!%* A!e(,-# e%* *%n:

[ L# A-#!,$,?n &e # 9#!,# $%!!(


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L# -(e*# en e e!$#&% &e #$e!% *%+e &e!e'(e!)%

e*!($(!#*0 >#+!8# en%n$e* &e ene! $(,&% &eene! # $e!e)# &e #&(,!,! #$e!% &e e*#*$#!#$e!8*,$#*.


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