An innovative metro viaduct using UHPC
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Bibliographic Details
| Author(s): |
Serge Montens
(Systra, Paris, France)
Jérôme Olive (Systra, Paris, France) Pierre-Etienne Gautier (Systra, Paris, France) Sébastien Bernardi (Lafarge Holcim, Paris, France) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 3114-3121 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.3114 | ||||
| Abstract: |
Systra had developed since 1996 a concept of U-shape viaduct, used for more than 300 km of metro viaducts throughout the world. In order to continuously improve the transportation infrastructures, SYSTRA has developed recently, with inputs from Lafarge Holcim, a new structural and architectural concept for metro viaducts, using UHPC. The deck and the piers are made of a combination of UHPC and ordinary concrete. The lateral beams have openings in order to: clear the view from the metro passengers across the lateral beams, improve the architectural aspect and allow various esthetical expressions, and optimize the UHPC use. Thanks to this new design, the span between piers is about 45m to 50m (instead of formerly 35m for SYSTRA classical U-shape viaducts). Globally the carbon print of the UHPC viaduct is less important than the classical viaducts, due to a better durability of UHPC. |
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| Keywords: |
UHPC metro viaduct
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