Seismic resilience frames of industrial buildings with energy absorbers

The object of research is the seismic resilience of industrial buildings with a frame design of the structural scheme. Increasing seismic resilience, especially for energy facilities, is promising. With the change in the regulatory and technical base of the Russian Federation, it is necessary to search and analyze new design options that would increase the survivability of the building while being economically justified. Therefore, this paper considers the use of methods for improving seismic resistance through elements for absorbing vibrational energy during the implementation of a special seismic effect, working elastoplastically. Method. A detailed numerical analysis of the operation of the industrial building frame's structural system was carried out using the finite element method in modern software systems based on the example of a thermal power plant (TPP) with a gas turbine with a capacity of 170 MW in two versions with energy-absorbing structures of details and a "traditional" version. Results. As a result, the prospects for using energy absorption elements in frame-braced structures of the frame of the TPP building were substantiated. It has been established that such solutions make it possible to concentrate most of the residual deformations in themselves, thereby reducing the deformability of other structural elements, increasing the overall survivability of the frame, and reducing the volume of restoration during the implementation of seismic impact. A quantitative assessment was given of the change in the operation of the frame of a TPP with a 170 MW gas turbine equipped with energy absorbers during the implementation of a seismic impact.