Article | REF: C4498 V1

Bridge design

Authors: Jean-Armand CALGARO, Anne BERNARD-GELY

Publication date: February 10, 2010, Review date: July 20, 2020

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5. Other construction methods for prestressed concrete bridges

Other construction methods for prestressed concrete bridges are :

  • self-supporting hanger construction;

  • construction in progress.

Self-supporting arch construction consists of building a structure in full spans in an arch suspended from a load-bearing steel structure. This structure is supported, towards the "rear", on the end of the deck already in place and, towards the "front", on a pier (or abutment). Once the concrete of the new span has hardened and been prestressed, the bend is moved to span the next span, using a metal forebay to facilitate docking on a new pier.

A distinction is made between "overhead" self-launching hangers, which carry the formwork by means of hangers, and "underneath" hangers, in which the formwork is attached to the load-bearing...

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Other construction methods for prestressed concrete bridges