11.tabique portico
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San Bartolomé
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Los tabiques se utilizan como separadores de ambientes en losedificios aporticados. Son de albañilería por sus buenaspropiedades térmicas, acústicas, resistentes e incombustibles.
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LOS TABIQUESSE CONSTRUYENDESPUÉSDE HABERSE DESENCOFRADOLA ESTRUCTURAAPORTICADA
Incorrecto
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InterfaseConcreto-Albañileríaes débil
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MODELO MATEMÁTICO
MODELO
= D / 4
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EDIFICIO UBICADO EN ESQUINA: TORSIÓN
calle
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MÉXICO-1985
EDIFICIO APORTICADOQUE ERA SIMÉTRICO
CR
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PISO BLANDOPrimer piso: Cocheras, TiendasPisos superiores: Vivienda
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Piso Blando y Torsión
CR
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PROBLEMAP-∆ P∆
San BartoloméSan Bartolomé
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POPAYÁN, COLOMBIA, 1983(t = 19 segundos)
1
2
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POPAYÁN, 1983
tabique fuera del plano del pórtico
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VOLCAMIENTO DETABIQUES SUELTOS
Popayán, 1983
Tacna, 2001
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Popayán, 1983
Puebla, 1999
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dentada
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Reforzamiento de tabiquesexistentes empleandomalla electrosoldada
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POSTE
Lima
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Piso Blandoproducidopor losparapetos.Kobe 1995
viga
losaparapeto
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Lima
parapetos no arriostrados enun edificio muy flexible
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COLUMNAS CORTAS
México-1985 Chile-1985
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NAZCA-1996 San Bartolomé
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corta larga
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REFORZAMIENTODE LOCALESESCOLARESEXISTENTES.ExperimentoPUCP-SENCICO
resinaepóxicacorta larga
larga larga
(95%)
Hacer que todas sean cortasy que c/u tome el 25% de V
alféizar
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MÓDULO REFORZADO ENSAYADO EN MESA VIBRADORA
Sismo
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Empuje deventana sobreel tabiqueproducido poraplastamientode lacolumna corta.
El problemano fue elarriostramiento
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MÉXICO-1985
Arriostres Diagonales
Arriostres Convencionales
Muchos edificios nocolapsaron, graciasa los tabiques dealbañilería
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PANELES DRYWALL
falla
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EDIFICIO CON TABIQUES DRYWALL
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AISLAMIENTO DE TABIQUES
e = 0.007 h
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guías para evitar elvolcamiento
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Aplastamientodel tecnopor
Las guías deben separse del tabique para permitir el desplazamiento del pórticoSan Bartolomé
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Pésimo intento de aislamiento
tabique
vigueta
viga de amarre
tecnopor
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San Bartolomé
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Tabique integrado al pórtico. Klingner -Bertero.San Bartolomé
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PLACAS DECONCRETOPARAATENUAR LAINTERACCIÓN
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FIBRABLOCK
serpentín
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Ensayo en Mesa Vibradora:1.-Pórtico sólo2.-Pórtico con Fibrablock3.-Pórtico con Albañilería
sismoSan Bartolomé
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COEFICIENTE SÍSMICO vs. DESPLAZAMIENTO LATERAL(ensayo en mesa vibradora)
2050-20 -5
SISMO LEVE ENLOS TRES CASOS
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San Bartolomé
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1.- TRACCIÓNDIAGONAL
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POPAYÁN, 1983
Edificio aporticadocon tabiques quefallaron portracción diagonal
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2.- CIZALLESan Bartolomé
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3.-APLASTAMIENTO San Bartolomé
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Resistenciaúltima delpuntal(tabique dealbañilería))
Compresión Actuante = C < mín (Rc, Rt o Rz)
C
San Bartolomé