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  • Main methods used in the design of earthquake-resistant objects

    The traditional approach to designing seismic resistant buildings is to provide the building with strength, rigidity and inelastic deformation capacity. modern methods of protection, in contrast, are not to strengthen the building, but in its ability to relax forces and stresses. There are three main methods used in the design of earthquake-resistant objects. 1. The use of seismic insulating basement. This system provides isolation only in the horizontal direction and is rigid or semi-rigid in the vertical direction. 2. The use of devices that dissipate the energy of an earthquake. In the building, seismic dampers are installed, which reduce the magnitude of vibrations, turning the kinetic energy of the vibrations into thermal energy. 3. Installation of active seismic resistance monitoring systems (active method). Such an active feedback control system contains three main elements: a. Sensors for measuring external excitation; b. Computer hardware and software; c. Drives to provide the necessary control forces. At present, the most popular is the hybrid method of semi-active control, which combines the advantages of a seismoisolating basement with passive shock absorbers, which is much more economical in comparison with the active method.

    Keywords: seismic resistance, high-rise building, earthquake, seismic isolation foundation, “levitating” house, damper, deformation, structural reaction, passive, active, semi-active control system

  • On the development of facade glazing systems for civil buildings

    A comparative analysis was made of the evolution of the development of facade glazing systems in the design of public buildings both abroad and in Russia. It has been established that both abroad and in Russia are characterized by the appearance of buildings with continuous glazing, the production of glass and double-glazed windows of a new generation: with magnetron application of heat-reflecting coatings and with energy-saving characteristics. The shape, size, placement of the glazed surfaces of the facade were determined by the climatic conditions, economic and scientific-technical development of the countries.

    Keywords: Facade glazing, translucent facades, Bauhaus, Le Corbusier, stained glass, cold-formed glass, cold facade, exhaust facade, external natural factors