This document summarizes segmental bridge construction techniques. Segmental bridges are constructed using precast concrete segments rather than a single continuous pour. This allows construction over bodies of water without needing intermediate supports. Two common techniques are discussed - cantilever construction where segments are cast out from each pier, and incremental launching where precast segments are erected on a launching girder. A case study of the Ganga bridge in India is provided, which used both precast and cast-in-place segments to span over 1,000 meters. Segmental construction enables longer bridge spans while reducing impacts to river traffic during construction.

1. A seminar report on SEGMENTAL CONSTRUCTION OF BRIDGES

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