Comparison of long-span girder bridges versus extradosed bridges built in balanced cantilever

摘要

The paper presents a technical comparison of two different bridge types that can becompetitive for spans ranging from 300 ft to 700 ft. Through different case studies (bridges designedby PEDELTA in Latin-America using the AASTHO LFRD Code), the paper illustrates the differentapproaches on the design of both bridge types and their main features.