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Abstract: A submerged floating tube bridge (SFTB), or generally called Submerged floating tunnel (SFT) has never been built. However, feasibility studies of different crossings around the world have been carried out in the past 40 years. The Norwegian Høgsfjord SFTB was a concept that had gone so far to the milestone of being technically approved by the national road authority in the last 90s. Recently,...
Abstract: The current paper shows an overview of the dynamic analysis methods and models for the SFTB concept. The design basis for the Bjørnefjord in Norway is given, followed by the analysis methods for different design issues together with example results. First and second order wave loads and responses, current induced loads and response (Vortex Induced Vibration, VIV) and other types of loads and...
Abstract: The success of urban tunneling, for pedestrian and cycle paths, has to deal with the psychological impact on the users for the characteristic shape of the section of the structure. This is influenced by the visual aspect of the inner space of the crossing. Furthermore, the common perception of the safety in such structures is low, especially due to the restricted path, implying an effort in the...