Composite Bridge Design in Germanyby Karlheinz Roik, Ruhr-Univ Bochum, Bochum, West Germany,
Jochen Haensel, Ruhr-Univ Bochum, Bochum, West Germany,
Document Type: Proceeding Paper
Part of: Composite and Mixed Construction
A span length between 40 m and 12 m has been regarded as optimal up to the mid-60's for a composite design to compete with prestressed concrete or steel alternatives. With the development of large scale launching girders for the formwork of concrete bridges, and the implementation of erection and fabrication procedures, mainly taken over from steel bridge construction, composite design has lost part of its application to the concrete competitors. In the first stage of construction, the development of a rapid city commuter train system now underway in Germany linking the cities of Hanover and Wuerzburg has urged bridge designers to rethink design principles. The intention of this paper is to discuss new design criteria, experience related to composite structures, and recent verifications.
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