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7/26/2019 Presentacion Terremoto Northridge
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S
Terremoto
Northridge 1994 PREPARADO POR:AZZAT KECHICHIAN CI. 19.611.51PA!E"A SA"AZAR CI.
"EONARDO R#IZ CI.
CAR"OS $AS%#EZ CI. 19&'(5&&
)ARCE"ONA* +#"IO DE ,&14
#NI$ERSIDAD SANTA !ARIA
N#C"EO ORIENTE
-AC#"TAD DE INENIERIA
ESTR#CT#RAS II
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S
O)SER$ACIONES
"/0 e0tr2tr/0 de /2ero hi0t3ri2/mete h/ teido e
de0eme7o dr/te 8/ o2rre2i/ de terremoto0* e0to 0e /trie /:
"igere/
D2ti8id/d
r/ Rigide
Po2/ E;o0i2i3
A e0/r de e0to* e0tr2tr/0 de /2ero moder/0 h/ re0et/doro8em/0 imort/te0 e terremoto0 re2iete0.
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DATOS DE" SIS!O
"g/r: Are/ Norte de8 $/88e de S/ -er/do* Cid/d de "o0 Age8e0 < C/8i=ori/
-e2h/: "e0 1 de Eero de 1994
4:(&:55 A! Hor/ "o2/8
Dr/2io: 1& / ,& Segdo0
!/gitd: 6* >Rit2hter?
A2e8er/2io de8 Se8o @ 1*' g
$e8o2id/d !/;im/ de8 terreo: 1'( 2m0
, RB8i2/0 de 6 !
, !erto0* 1,&&& herido0* PBrdid/0: ,5.&&&.&&&
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7/26/2019 Presentacion Terremoto Northridge
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DATOS DE" SIS!O
Regi0tro de 0i0mogr/m/ e -/ir/0>A8/0/?* di0t/2i/ei2etr/8 (5F
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Regi0tro0 de 8o0 0i0mogr/m/0 de8terremoto deNorthridge >C/8i=ori/? de
m/gitd 6. de 1 de Eero de1994. C/d/ 0i0mogr/m/me0tr/ e8 de08//mieto de80e8o e 8/ Gerti2/8. "/ 8o2/8i/2i3de 2/d/0i0mogr/m/ / 8o 8/rgo de8 eehoriot/8 me0tr/ 8/ di0t/2i/ de
0 e0t/2i3 /8ei2etro* medid/ e gr/do. E8 eeGerti2/8 me0tr/ e8 tiemo e0egdo0 1&&*medido0 de0de e8 ii2io de8terremoto* 1,:(&:55 #TC. Se7/8/
e di2h/ Jgr/ 8/088eg/d/0 P* 8/0 S* 8/0 88eg/d/0 PP*
DATOS DE" SIS!O
7/26/2019 Presentacion Terremoto Northridge
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ESTR#CT#RAS A-ECTADAS
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ESTR#CT#RAS A-ECTADAS
CA" STATENORTHRIDE
E0t/2io/mieto 2o2//2id/d /r/ ,5&&
2/rro0
Co8/0o /r2i/8
-r/2tr/ eCo8m/0
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ESTR#CT#RAS A-ECTADAS
S/ -er/do $/88eA/rtmet
Derrme e 8/8/t/ de g/r/e
EdiJ2io de 8/dere2h/ >eme8o? o=/883
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ESTR#CT#RAS A-ECTADAS
A#TOPISTA SI!I$A""E
P/deo de 2o8m/0de 0oorte
-/88o e0tr2tr/8rod2ido or /8t//2e8er/2i3 Gerti2/8
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7/26/2019 Presentacion Terremoto Northridge
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Estructuras de Concreto
PrefabricadoC/0/0 de 8/0 =/88/0:
$io8/2i3 de 8/2om/tii8id/d dede=orm/2i3
A22i3 i/de2/d/ de8di/=r/gm/
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Estructuras Metlicas
-/88/ =rLgi8 / iGe8 de 8/
0o8d/dr/ de8 /8/ de 8/ Gig// 8/ 2o8m/
D/7o0 tom/ro or 0orre0// 8o0 ro=e0io/8e0 de8di0e7o 8/ 2o0tr22i3
D/7o0 0eGero0 e 8/02oe;ioe0 Gig/M 2o8m/i280o e ediJ2io0 re2iete0
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C/mio0 e 8o0 23digo0 de
2o0tr22i3
A/rt/meto0m8ti=/mi8i/re0 de i0o8/do =erorohiido0
E;te0i3 de i0o0 dem/der/ 15 m/0 /88Lde8 mro de 2orte
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C/mio0 e 8o0 23digo0 de
2o0tr22i3
The Pre-Northridge Connection
Lateral
loads
resisted by
moments
developed
in frame
Beams welded and
bolted to columns
Complex joint
) closer loo*
+igh force
transfer at
connection
(ea* section at
face of columnNumerous
stress risers
in typical
joint detail
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.educed Beam
$ection 1.B$2
)lso called 3ogbone4
connection5 less costly! simpler
than reinforced connections
#orces hinge formation to
occur within reduced section
Now one of the mostcommonly used connections
Bolted /nstiffened and Stiffened Etended End*PlateMoment Connections
C/mio0 e 8o0 23digo0 de
2o0tr22i3
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"%MA VE"E23A"A
ES4%/C4/%AS E ACE% PA%A E5F5CAC5"ES6M74 E 3S ES4AS 38M54ES91ra%e:isi;n,1??>
CME"4A%5
C/mio0 E "/ Norm/$eeo8// Po0tM
Northridge