Session 2
Precast Concrete Façades 2.1. Classification 2.2. Concrete panels (one layer) 2.3. Concrete sandwich panels 2.4. Design, manufacturing and installation 2.5. Case studies 2.6. Blibliography
Based on the original presentations by Prof. Luis Beltrán - luisfelipe.beltran@upm.es Adapted by Prof. Julián García Translated by Luis M. Martín
Torre Getesa Chamartín Madrid. Bunch Arqt Const. FCC, Prefabricación Prehorquisa
02. Precast Concrete Faรงades
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2.1. Classification Loadbearing Concrete Panels
One layer Concrete Panel Sandwich Concrete Panel
Concrete Systems
One layer Concrete Panel Non Loadbearing Systems Prefabricated
Sandwich Concrete Panel
Faรงades GFRC/GRC
Light Systems
Non Loadbearing Systems
GRP
Metal Faรงade Panel
02. Precast Concrete Façades
2.2. Concrete panels (one layer) · Materials. Concrete. Ha-25,30,35. Aggregate<15 mm. Steel. B500T welded mesh, 5 to 10 mm diameter. Reinforcements on edges and corners. · Standard measures (Size limits given by the load capacity of the available machinery: <1000 kg Æ standard tower crane; <5000 kg Æ mobile crane) Thickness > 12 cm in structural panels. 812 m in non-load bearing panels. Height < 3.50 m Æ normal truck; < 4.00 m Æ truck loader. Length < 13.50 m Æ normal truck · As an example, a 8cm thick panel would weight 200 kg / m2. Considering a 3, 50 m. height and a 5,00 m. length, the total weight would be 3.50 x 5.00 x 200 kg / m2 = 3.500 kg
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2.3. Concrete sandwich panels 路 Same materials, but including an insulations, usually extruded polystyrene. 路 Standard measures Thickness 6+10+6 (300kg/m2). Height around 2,00m Length 3,00 to 10,00m 路 Total weight would be 1.800 to 6.000 kg/unit
www.precastpaneldetailing.com
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02. Precast Concrete Fa莽ades
2.4. Design, manufacturing and installation 路 Design Modulation 路 Manufacturing Formwork Reinforcement Concrete (pouring, vibrating, curing, striking formwork) Superficial treatments Storage 路 Installation Assembly and anchorage Joint treatment
SEIS. Manufacturing processes
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02. Precast Concrete Faรงades
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02. Precast Concrete Faรงades
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02. Precast Concrete Façades
Manufacturing – Reinforcement · Welded steel mesh placed in the center of the piece, with reinforced edges and corners. · Steel plates for anchoring. · Steel connectors for demolding and assembling elevation
Reinforcement separators. Steel plates for anchoring. Steel connection for elevation. Photo: LB
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02. Precast Concrete Façades
Manufacturing – From formwork to finishing · Steel formwork with external vibrators · Use of release agents that do not affect concrete texture or color · Textures imitating stone, timber, etc. Different textures
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02. Precast Concrete Façades
Design goals · Modulation and repetition · Standard families of similar elements, based on slight variations on the same mould · Size limits given by the load capacity of the available machinery
CS Leganés Project Arq. Arderíus, Beltrán, 2003
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Installation 路 Transport & elevation
Installation anchoring. Photos: Frimeda Erection process. Photos: Prehorquisa
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02. Precast Concrete Façades
Installation · Standard connection Bearing Connection Steel section
Embed plate
W2
W1
Concrete floor
Flexible Connection – Steel section Hilti HSA-K for connection
Welded connection
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02. Precast Concrete Faรงades
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02. Precast Concrete Façades
Joints · Sealing · Durability · Aesthetics · False joints
A sealed joint. Photo: LB
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Details: buildingscience.com
02. Precast Concrete Faรงades
Details: buildingscience.com
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02. Precast Concrete Fa莽ades
Other systems 路 Sandwich panels
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02. Precast Concrete Faรงades
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02. Precast Concrete Faรงades
Details: buildingscience.com
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02. Precast Concrete Fa莽ades
Other systems 路 Precast concrete panels with inner frame
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02. Precast Concrete Fa莽ades
2.5. Case studies 路 131 viviendas en Oviedo. Arch. Aranguren y Gallegos. Prefabricados Prehorquisa
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02. Precast Concrete Façades
Case studies · DAH Library, Pasadena California, Arqt W.Macdonouh, House & Robertson, 2009. Photo M. Beltrán.
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02. Precast Concrete Façades
Case studies · DAH Library, Pasadena California, Arqt W.Macdonouh, House & Robertson, 2009. Photo M. Beltrán.
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Case studies · 101 viviendas en Alcorcón. Arch. Ángel Fernández Alba. Prefabricados Prehorquisa
02. Precast Concrete Façades
Case studies · 72 viviendas en C. Real. Arch. Rojo y Fernández. Prefabricados Prehorquisa
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02. Precast Concrete Façades
Case studies · Edif. C. de Salud en Valladolid. Arch. Arderíus, Beltrán. Constructora Ferrovial
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Case studies · C. de Salud “El Soto” de Móstoles. Arch. Beltrán, Cabrejas. Constructora Edhinor.
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02. Precast Concrete Façades
Case studies · C. Salud y Especialidades en Leganés Arq. Beltrán, Cabrejas, Arderíus. Escultor J. Vaquero Turcios. Constructora OHL. Prefabricados Indagsa
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2.6. Bibliography Deplazes, A (Ed.) (2009) Constructing Architecture. Materials, processes, structures. Birkhäuser, Basel Herzog, T. et al (2004) Facade Construction Manual. Birkhäuser, Basel Knaack, U.; Klein, T.; Bilow, M.; Auer, T. (2007) Façades. Principles of Construction. Birkhäuser, Basel Poirazis, H. (2004) Double Skin Façades for Office Buildings. Division of Energy and Building Design. Department of Construction and Architecture. Lund Institute of Technology. Lund University. Reichel, A. (2007) Open-Close. Windows, Doors, Filters. Birkhäuser, Basel Spanish regulations: CTE DB HE, Ahorro de energía CTE BD SU, Seguridad de utilización CTE DB SI, Seguridad de incendio CTE DB HS, Salubridad