New UHPFRC deck slab for the Grand Pont in Thouaré-sur-Loire (France) - How to extend the life of a 19th century metallic structure bridge

Author(s) : S. Jaffrelo
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. Resplendino
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 807 - 814
Total Pages : 8
Language : English

Abstract: The operation of rehabilitation and improvement of the level of service of the “Grand Pont” of Thouaré-sur-Loire involves the complex realization of a new integral UHPFRC deck-slab. This very thin slab, made up of prefabricated elements, connected on site with UHPFREC joints, allows relieving the deck of half of its own weight. The gain in thickness also enables to reinforce the 135-year-old steel structure, which has been completely conserved, by superimposing new metallic beams without changing the finished level of the roadway. This bridge part offers an optimized functioning in mixed cross-section thanks to the transversal connection of UHPFRC slabs. These qualities have led to the acceleration of the overall constructive process, which has been appreciated by the socioeconomic environment of the project.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00