ABOUT THE DESIGN OF THE STRUCTURE OF THE TRANSPORT HIGHWAY OVER THE GULF OF FINLAND
Keywords:high-speed transport highway, overpass of large-diameter pipes, cable-stayed and arched structures.
To solve the problems outlined in the modern concept of the passenger transport system of St.
Petersburg with a total length of 135.8 km, a high-speed vacuum train system is proposed, similar to the famous Hyperloop by Elon Musk, with changes to suit Russian conditions. The route scheme in the plan has a polygon with the location of the traffic interchange nodes (TIN) in its corners. The article discusses the sea section of the route located between
TIN "Izhora" and TIN "Sestroretsk" in the north. The basic level of the railway tracks for the supporting aboveground and water base is assumed at the level +88.0 of the Baltic Heights system. The location of the sea section of the high-speed transport highway (HSTH) is taken in accordance with the routes of sea fairways, railways and highways, including the city ring road. The above-ground part of the structure is presented in the form of a spatial cable-rod system with a span of 360.0 m and 180.0 m, belonging to the category of high-rise and large-span structures for supporting the overpass. Static calculation and selection of structural sections are performed for acting loads, taking into account the preliminary tension of guys and suspensions, as well as taking into account the maximum amplitudes of resonant oscillations of systems from the dynamic component of the wind load, including taking into account nonlinearity. The development of load-bearing building structures has been completed to ensure the operation, the required reliability and safety of the HSTH.
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