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Lisbon, Portugal

Reis A.J.,GRID Consulting Engineers | Oliveira J.J.,GRID Consulting Engineers | Dalili B.,WSP International
Proceedings of the Institution of Civil Engineers: Bridge Engineering | Year: 2013

The Zambezi River Bridge between Caia and Chimuara is one of the longest and most important bridges built in Africa in recent years. The 2376 m long bridge provides a vital connection between the south and north of Mozambique, substituting the ferry connection to the national road 1 that has existed for almost 50 years. The topography of the site, the deep foundations, the size and significance of the river channel and the environmental sensitivities shaped almost every aspect of the bridge design and construction presented here, including the route selection, the structural forms and the construction methods. Source

Reis A.,GRID Consulting Engineers | Reis A.,University of Lisbon | Baptista C.,GRID Consulting Engineers
Structural Engineering International: Journal of the International Association for Bridge and Structural Engineering (IABSE) | Year: 2013

The suspension bridge across the Zambezi River at Tete in Mozambique was built between 1965 and 1970. It is a multi-span suspension bridge with a total length of 720 m and an unique structural scheme. Inspections during 1999 and 2005 identified three major problems: unbalanced load on hanger system with major misalignments in deck geometry, hanger failure by fatigue and corrosion, and damage to the concrete caused by excessive rotations of main transverse beams suspended by hangers. This paper describes the most important design options and solutions put forth for the rehabilitation of the bridge and for extending its lifespan under increasing traffic loading. Source

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