Design and construction of three Extradosed bridges in La Paz (Bolivia)

摘要

The construction of a beltway allowing traffic decongestion in La Paz, Bolivia, was completed in 2010.The new elevated road crosses three parallel valleys with signature bridges. These three consecutive bridgeshave similar features and as a result are called the Triplets. All three-span structures are extradosed concretebridges with maximum span of 372 ft (113.5m). The presentation includes the design criteria using American andEuropean Codes and the main features of the erection process.