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New Accelerated Prefab Bridge Scheme – the NRW Bridge Modules

 New Accelerated Prefab Bridge Scheme – the NRW Bridge Modules
Author(s): , ,
Presented at IABSE Symposium: Tomorrow’s Megastructures, Nantes, France, 19-21 September 2018, published in , pp. S17-33
DOI: 10.2749/nantes.2018.s17-33
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Arup had been commissioned with the design of a new modular bridge system by Straßen.NRW, the road authority of Germany’s biggest state North Rhine-Westphalia. This article describes the background...
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Bibliographic Details

Author(s): (Arup Deutschland GmbH, Dusseldorf, Germany)
(Arup Deutschland GmbH, Dusseldorf, Germany)
(Arup Deutschland GmbH, Dusseldorf, Germany)
Medium: conference paper
Language(s): English
Conference: IABSE Symposium: Tomorrow’s Megastructures, Nantes, France, 19-21 September 2018
Published in:
Page(s): S17-33 Total no. of pages: 8
Page(s): S17-33
Total no. of pages: 8
DOI: 10.2749/nantes.2018.s17-33
Abstract:

Arup had been commissioned with the design of a new modular bridge system by Straßen.NRW, the road authority of Germany’s biggest state North Rhine-Westphalia. This article describes the background of this pilot project, the design concept, as well as the structural design and construction sequence of two new bridges, which can be erected within 8-10 weeks. The design is characterized by a high degree of prefabrication, modularity as well as the use of high performance concrete to ensure an excellent durability. The bridges are designed as integral frames – spanning about up to 30 m. The use of in-situ concrete had been kept to a minimum. The structures contain no bearings, no expansion joints and no separate parapets, which significantly reduces lifecycle costs. The use of high performance concrete made an additional waterproofing layer obsolete, which also saves construction time. The bridges are designed for replacement of deficient structures. To minimize demolition time, the foundations were designed so the existing foundations could remain in place.

Keywords:
high performance concretes HPCs replacement integral bridges pilot project modular prefabricated bridges SOFiSTiK model