Caprera - La Maddalena Bridge

Year: 2008-2009 - Location: La Maddalena (OT), Italy

171 ft lenght bridge, composed by a double reticular 3D steel structure. The bottom arch (7 inches) is built with an high performance concrete.

The site lies in the heart of the Natural Park of La Maddalena, in a landscape of outstanding natural value. The bridge covers a total span of 52 m and is divided into three bays. The central span is 25 m long, each of the two lateral bays is 13.5 m long. The bridge has a double three-dimensional reticular structure according to a Deck Arch Bridge static scheme, addressed to obtain an high slenderness.

The lower arc is made of high-performance concrete, as well as the deck, in order to reduce the thicknesses up to a minimum of 22 cm. The deck has been post-tensioned with high-strength steel strands in order to optimize the response under tensile loads induced by the function of upper element developed within the overall reticular mechanism of the structure.

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