Author(s)

F. Tarquis, M. Martin & F. Quintero

Abstract

The Tamaraceite Viaduct is an intermediate deck Arch Bridge with several peculiarities making it an interesting structure; both for its design and construction method, both closely linked to each other. The arch, which is mixed concrete-steel, has a 162-meter span. Its steel part was mounted by cantilever advance and making use of provisional pylons and stays, whilst the buttresses acted as counter-weights. The deck is prestressed concrete and was built in-situ on scaffolding at the end areas close to the abutments, whilst in the center area (approximately half the deck's length) it was prefabricated in five parts or segments of 650 tons weight each. These segments were lifted using hydraulic jacks following a procedure expressly developed for building this bridge. The lifting was, in turn, the method for putting the arch under load,

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