Scientists conducted an experimental transportation of the arches of the Crimean Bridge

This year, the Krylov State Scientific Center of St. Petersburg conducted mathematical and experimental modeling of the operation of transporting the navigable arches of the Crimean Bridge - automobile and railway — the largest and most powerful bridge structures. Their total weight will be about 10 thousand tons, each 227 meters long.

For the experiment, mock-ups of arches on a scale of 1:60, pontoons on which they will be transported, and tugboats were made. The scientists determined the maximum wind speed, currents and sea waves at which transportation can be carried out, calculated the number and layout of tugboats. The tests were conducted in a landscape wind tunnel. A model of the arch was placed in it and moved 360 degrees using a rotary circle. During the determination of the wind load, all possible wind directions and speeds were taken into account.

After the experimental part, the scientists developed a mathematical model taking into account all the data obtained in the wind tunnel, as well as the hydrodynamic characteristics obtained in the experimental pool of the Krylov center. The specifics of the Kerch Strait were also taken into account. The operation of transporting navigable spans, taking into account all the set parameters, was modeled in a special training complex of the Krylov Center.

A complex operation to deliver arched spans to the fairway is scheduled for the end of August. The assembly of the navigable arches of the Crimean Bridge is currently underway on the Kerch side (Source: Krylov State Scientific Center).

Specialists from the Krylov Scientific Center will hold a number of thematic sessions at the 100+ Forum Russia for bridge builders and all interested specialists. Sergey Solovyov, Deputy Head of the Hydroaerodynamics Department, Candidate of Physico-mathematical Sciences, project manager for the creation of a landscape wind tunnel, author of more than 40 scientific papers and author's certificates, will share his experience in experimental mathematical modeling of the operation for transporting arches of the Crimean Bridge. Experts of JSC "Institute Giprostroymost. St. Petersburg" will tell about dynamic tests of steel tubular piles using the shock wave theory and will consider the problems of calculating the longitudinal sliding of the superstructures of large bridges.