"PrECO-Beam" Prefabricated Enduring Composite Beams based on Innovative Shear Transmission
Composite structures are gaining in importance in Europe. The combination of materials within its specific properties results in very slender and economic constructions. Composite girders permit large spans in slender frame bridges without loss of economy. Due to the high grade of prefabrication in building construction smaller survey heights and shorter construction times are possible. The enduring bearing capacity of composite girders depends on the performance of material and the design of shear connection. A new form of shear transmission - the concrete dowel - permits composite girders without an upper steel flange and an enduring shear connection also of high strength steel with high strength concrete. see more
Composite Bridge Design for Small and medium Spans
In the frame of this project, new concepts for the design of easily buildable composite bridges have been developed wich are attractive for being executed by the main contractor without problems on site. The composite bridge concepts being developed cover the span range of about 15 to 50 m, to extend the traditional span lengths of composite bridges for small and medium spans. Therefore, the new concepts cover about 75% of all span requirements for road bridges. Particular features of these new concepts are the sufficient robustness for execution, cost effectiveness, durability in use and a minimum of construction time