present final der - anfah
TRANSCRIPT
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ÍÍNDICENDICE
Museo Museo ÓÓscar Domscar DomííngueznguezIglesia de San JorgeIglesia de San JorgeRefuerzo de los tRefuerzo de los túúneles de Montblancneles de MontblancArco del puente de la Ronda de la HispanidadArco del puente de la Ronda de la HispanidadPuente "El GuardiPuente "El Guardiáán del Castillo"n del Castillo"GalerGaleríías y muros prefabricadosas y muros prefabricadosViaducto de la variante de El PortalViaducto de la variante de El Portal
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CENTRO WESTERDAHLCENTRO WESTERDAHL
Instituto Instituto ÓÓscar Domscar Domíínguez de Arte y nguez de Arte y Cultura ContemporCultura Contemporáánea (IODACC)nea (IODACC)Biblioteca InsularBiblioteca InsularCentro de FotografCentro de Fotografíía Insulara Insular
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PIERRE DE MEURONPIERRE DE MEURONJACQUES HERZOGJACQUES HERZOG
Premio Pritzker de Arquitectura 2001
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2.3 CEMENTO2.3 CEMENTOTipo IV/A (P) 32,5 NTipo IV/A (P) 32,5 NTipo II/A P 42,5 R Tipo II/A P 42,5 R
2.4 DOSIFICACI2.4 DOSIFICACIÓÓN FINALN FINAL370 Kg. cemento tipo II/A P 42,5 R370 Kg. cemento tipo II/A P 42,5 R650 Kg. 650 Kg. áárido machaqueo 6rido machaqueo 6--12 12 750 Kg. arena de machaqueo 0,6750 Kg. arena de machaqueo 0,6350 kg. arena rubia fina tama350 kg. arena rubia fina tamañño 0,2o 0,2160 litros de agua160 litros de agua
2.5 CONSISTENCIA2.5 CONSISTENCIA2.6 COLOR2.6 COLOR
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• 3 túneles de vía doble
• Longitud total: 3.046 m
• Diámetro interior– Camp Magré: 13,0 m– Lilla: 12,0 m– Puig Cabrer: 14,0 m
• Diámetro de excavación– Camp Magré: 14,52 m– Lilla: 12,92/ 13,52 m– Puig Cabrer: 15,52 m
TÚNELES DE MONTBLANC
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ARGILITA CONVETAS DE YESO
ARGILITAYESÍFERA
ANHIDRITAAL 92 %
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YESO HIDRATADO COLMATANDO FISURA
CRISTALES DE YESO PRECIPITADO EN
FISURA
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• Dos fases:
– construcción de la contrabóveda circular
– construcción del revestimiento en bóveda.
• Situación de partida para la construcción de la contrabóveda:solera plana de hormigón armado
• Primera operación:demolición de la misma de modo que pueda comenzarse la excavación.
PROCESO CONSTRUCTIVO
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EXCAVACIÓN FASE 2 HORMIGÓN PROYECTADO
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• Puente dividido en tres partes:– parte central: puente arco de 120 m de luz– dos laterales de 92 m, separadas de la central por una junta
de dilatación• Arco de directriz parabólica de 18 m de flecha• Sección triangular variable:
– canto entre 1,6 m (centro) y 1,74 m (apoyos)– sección triangular achaflanada en las esquinas– chapa de acero de 60 mm– el hormigón interior rellena completamente el arco y está
vinculado con él hasta formar una estructura mixta
CARACTERÍSTICAS DEL ARCO
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• Hormigón de 70 MPa en unión arco metálico - tablero• Hormigón autocompactante de 50 MPa en el relleno
del arco por dificultad de vibración• Dosificación:
– 450 kg cemento– 100 kg cenizas– 895 kg arena 0/6– 880 kg árido 6/12 rodado– 9 kg superfluidificante– 160 l agua
• 300 m3 colocados en 5 horas
HORMIGONES
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GALERÍAS PREFABRICADAS ARTICULADAS
Un elemento
Dos elementos
Tres elementos
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• ELEMENTOS PRODUCIDOS Y TRANSPORTADOSEN POSICIÓN HORIZONTAL
• CONFIGURACIÓN FINAL EN OBRA
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• ALZADO DE LA PIEZA
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• COLOCACIÓN
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• PIEZA FINAL
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TRAMOS HIPERESTTRAMOS HIPERESTÁÁTICOSTICOS
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PREFABRICACIPREFABRICACIÓÓN A PIN A PIÉÉ DE OBRADE OBRA
MaterialesMateriales–– HormigHormigóón autocompactable n autocompactable
HPHP--50 vigas isost50 vigas isostááticasticasHPHP--60 vigas hiperest60 vigas hiperestááticasticasHAHA--55 Semi55 Semi--arcosarcosHAHA--35 Prelosas35 Prelosas
–– Acero activo adherente Y1860 S7 postesado en Acero activo adherente Y1860 S7 postesado en tendones de 12 F 0,6tendones de 12 F 0,6”” embebido en vaembebido en vaíínas nas corrugadas metcorrugadas metáálicas F 80 mmlicas F 80 mm
–– Acero pasivo BAcero pasivo B--500 SD500 SD–– Lechada de inyecciLechada de inyeccióónn
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SECCISECCIÓÓN TRANSVERSAL ZONA DE N TRANSVERSAL ZONA DE ACOPIOACOPIO
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FASES DE EJECUCIFASES DE EJECUCIÓÓN 1 A 6N 1 A 6
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