{"id":12606,"date":"2019-04-20T20:37:39","date_gmt":"2019-04-20T20:37:39","guid":{"rendered":"https:\/\/teixeiraduarteconstrucao.com\/projetos\/viaduto-coina\/"},"modified":"2019-08-21T15:59:56","modified_gmt":"2019-08-21T15:59:56","slug":"coina-viaduct","status":"publish","type":"tm_portfolio","link":"https:\/\/teixeiraduarteconstrucao.com\/en\/projects\/coina-viaduct\/","title":{"rendered":"A33 – BAIXO TEJO ROAD CONCESSION – COINA I VIADUCT"},"content":{"rendered":"

A33 – BAIXO TEJO ROAD CONCESSION – COINA I VIADUCT <\/span><\/h1>\n

Client<\/strong>: Conbate, ACE<\/span>
\nLocation<\/strong>: Coina – Portugal<\/span>
\nConclusion Year<\/strong>: 2012<\/p>\n

 <\/p>\n

The work has a length of approximately 900 metres between the end supporting axis, corresponding to 27 spans with a current length of 35 metres.
\nThe transversal platform of the Coina 1 Viaduct was materialized by two adjoining works separated 3 metres from each other, with a 12.60 m long platform each, and an average height from the top to the soil of 16m, with each deck ensuring the circulation of one way traffic.
\nIts decks are of the ribbed type slab, with a transversal section materialized by two constant cross-section pre-stressed slight ribs and interconnected also by constant cross-section thickness slabs. Externally, the ribs have variable thickness consoles with the whole length of the two decks length having been carried out resorting to shoring to soil.
\nBearing in mind the geological conditions of the layout site, the viaduct foundations were carried out in an indirect way through 1500mm diameter piles on which were built circular pillars with the same diameter.<\/p>\n

The work of art, along its whole length, intercepted five road and railway infrastructures in operation, namely, Motorway of the South\u2013 A2, Railway Line of the South, National Ironworks Industry Railway Branch and two Municipal Roads, which implied large limitations in the contract job execution, as its operation and activity had to be maintained during the viaduct construction period.<\/p>\n

Relevant data:<\/strong><\/p>\n

Length: 899 m
\nArea of the Decks: 23 689 m2
\nPassive Reinforcement Structures – A500 Steel: 2 978 554 Kg
\nPre-stressed Reinforcement Structures: 453 174 Kg
\nStructural Concrete: 24 693 m3
\nShoring Volume: 317 304 m3
\nArea of formwork: 47 920 m2
\nIndirect foundations \u00d8 1500 mm: 1 628 ml
\nIndirect foundations \u00d8 1200 mm: 81 ml
\nArea where landscaping work was done: 17 682 m2<\/p>\n

 <\/p>\n