Determination of the Amplitude-Frequency Characteristics of Earthquakes for the Analysis of Models by Direct Dynamic Method

Every year, earthquakes occur on our planet, to which the terms “destructive” or “catastrophic” are applicable, since they are accompanied by significant destruction and the death of a large number of people. It is impossible to prevent earthquakes, but the current level of development of earthquake-resistant methods in design and construction makes it possible to reduce the number of victims and destruction. The assessment of seismic resistance of structural systems of buildings and structures under the influence of the “maximum considered earthquake” level is recommended by regulatory documents, taking into account the possibility of developing inelastic deformations and local brittle fractures in the bearing and enclosing structural elements. Sections, elements and components of the building, the design development of which was carried out based on the results of the “design basis earthquake”, are checked for the effect of a maximum considered earthquake. Calculations corresponding to the “maximum considered earthquake”, in accordance with regulatory documents, should be performed in the time domain using instrumental or synthesized accelerograms by the method of dynamic analysis. The article shows graphs of the acceleration amplitudes of several recorded earthquakes that occurred at different times, the prevailing frequencies and the corresponding amplitudes of earthquakes are obtained. These data can be used both to calculate models by the direct dynamic method and to experimentally study the elements and components of multi-storey building frames.

А.S. ALEKSEEVA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.A. BUZALO, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
D.N. KUNDRUTSKOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Platov South-Russian State Polytechnic University (NPI) (132, Prosveshcheniya Street, Novocherkassk, Rostov Region, 346428, Russian Federation)

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