CIEN_E1201_-_14_Candela

CIEN_E1201_-_14_Candela - Felix Candela and the Hyperbolic...

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Felix Candela and the Hyperbolic Paraboloid
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The Spanish Style of Thin Roof Forms Antonio Gaudi catalan vaulting using tiles & conoid form Eduardo Torroja reinforced concrete & hyperboloid form Felix Candela hyperbolic paraboloids & reinforced concrete
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Importance of Curvature Concrete shells of Spanish School derive their stiffness/rigidity from curvature and not from thickness – proper form
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Felix Candela was born in 1910 in Madrid
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Studied Architecture in Madrid
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Became interested in concrete shells Candela’s hand-written notes on a Finsterwalder paper
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Fronton Recoletos by Torroja in Madrid (singly-curved barrel shell)
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Candela in Mexico Scientific geometric forms: hypars Social end of Mexican Revolution political and economic stability boom in construction Symbolic concrete: new reality of post- revolutionary Mexico (inexpensive, modern, efficient, forward-looking material)
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Hyperbolic Paraboloid (hypar) Doubly-curved surface Superior stiffness/rigidity Built from straight lines
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Cosmic Rays Pavilion (1951) in Mexico City (specification: roof no thicker than 5/8 of an inch)
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Curved surface generated by straight lines Structure received lot of acclaim (Candela’s first hypar)
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Two Types of Hypar Shells by Candela Curved edges Straight edges
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Two Types of Hypar Shells by Candela Curved edges Straight edges Cosmic Rays Pavilion has curved edges and 3 (concealed) stiffening concrete arches
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Two Types of Hypar Shells by Candela Curved edges Straight edges Inverted Umbrella Shape
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Inverted Umbrella Prototype (1952) (1/4 of a hypar turned upside down and repeated four times)
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Inverted Umbrella Prototype (1952) (successfully tested the traditional way!)
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Then he becomes creative with the new form
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Iglesia de la Virgen Milagrosa (1953), thickness = 1.5 inch
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Iglesia de la Virgen Milagrosa (1953) is a hypar form
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Imprints of formwork can be seen
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CIEN_E1201_-_14_Candela - Felix Candela and the Hyperbolic...

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