Hybrid bridges with decks from carbon prestressed concrete and carbon structure
Themes: Building & Infrastructure
Industrially producible, very thin, carbon preloaded concrete slabs were developed in the last eight years at Zurich University of Applied Sciences (ZHAW) by the expert group FVK. A startup—the company CPC AG—has been marketing these in Switzerland for two years and is aiming to obtain the general approval of DIBt in Germany.
With regard to these slabs, they are semi-finished products that can be manufactured on an industrial scale. They are comparable to steel panels in steel construction or wood panels (three-layer or MDF panels) in timber construction. They undergo further processing on an individual basis with CNC machines, and are added to building structures or components. This means that, for the first time in concrete construction, a technically complex construction slab with high load capacity and flexible applicability is available which can have a very wide variety of uses.
With this robust CPC carbon concrete slab as a carriageway or a compression chord, respectively, and the underlying carbon carriers working together as a tension belt, a new bridge system has been developed which is highly weather-resistant, vandal-proof, durable and lightweight. The corrosion problems that are common to concrete steel bridges are eliminated and the bridge is much more sustainable in comparison.
This composite bridge system is made possible by a new connection technology which does not require screws and adhesive connections. This newly-developed connection system and the new bridge system will be introduced in the presentation.
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