Abstract
On the south of Brazil the main Brazilian highway pass around the town Laguna only on a dual lane carriage way. There are regular traffic congestions with several hours of delay. The federal government invests a lot of money to increase the capacity of the main highway. The bridge over Canal Laranjeiras takes part of these improvements. It has a total length of 2 800m and overpasses two times the railway, the Laguna bay to Imauri and future navigation channel Laranjeiras. Its main part consists of 400m length of cable-stayed bridge with two pylons a 200m main span. The pylons are 76m height and are formed by box section. The cable-stayed part is situated in plan curvature and the main plane of longitudinal stays is supplemented by two planes of transversal stays for each pylon. The paper deals with conceptual design of the bridge and construction methodology.
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