TY - CONF A1 - Zanon, Riccardo A1 - Rademacher, Dennis A1 - Seidl, Günter A1 - Pak, Daniel T1 - Integral VFT-RS composite bridges : efficient standard highway overpasses T2 - IABSE Symposium Prague 2022 : Challenges for Existing and Oncoming Structures N2 - Starting from Germany, the VFT® bridge girder technology (prefabricated composite beam) has spread in several European countries in the last decades as further development of the standard steel-concrete composite solution. Its configuration fits perfectly to integral frame bridges built over existing infrastructure with the scope to minimize the traffic disturbance. In this paper a further development with the focus on cost efficiency in span ranges of 40-55 m is proposed: the VFT-RS technology. The change consists in using standard rolled sections by adapting them into the integral frame bridge configuration, further enhancing the structural efficiency with the benefits of high- steel strength. The constructive details to achieve the polygonal form have been studied to allow easy fabrication and a maximal clearance height over highway traffic lanes. The VFT-RS solution is conceived as the economic option of standard highway overpasses, with the aim of an overall construction cost reduction of 5%. KW - Verbundbrücke KW - Überführung KW - Autobahnbrücke Y1 - 2023 UR - https://opus4.kobv.de/opus4-fhpotsdam/frontdoor/index/index/docId/2992 SN - 978-3-85748-183-3 SP - 1013 EP - 1020 CY - Zürich ER -