Study the Elastic Waves Propagation in Multistory Buildings, Taking into Account Dynamic Destruction
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The paper is devoted to the study of the influence of the presence of multiple voids in an object (rooms in a high-rising building) on the passage of longitudinal and transverse elastic waves. A feature of the research is to take into account the influence of the dynamical destruction of an object on the propagation of elastic waves in it. Changes in wavelength, wave type, amplitude, and dispersion are analyzed. The studies were performed using the method of wave phenomena investigation called Wave Logica. We solved the boundary-value problem of the elastic wave equation using the grid-characteristic numerical method on regular structured computational grids to compute the wave fields. We used the failure criterion for the principal stress and the destruction model of fractures to calculate the dynamical destruction. The results obtained can be of practical importance in the development of methods for increasing the earthquake stability of the multistory buildings.
KeywordsEarthquake stability High-Rising buildings Elastic wave Phenomena Wave investigation Numerical modeling Computer simulation Grid-Characteristic method
The reported study was funded by RFBR according to the research project № 18-01-00526. This work has been carried out using computing resources of the federal collective usage center Complex for Simulation and Data Processing for Mega-science Facilities at NRC “Kurchatov Institute”, http://ckp.nrcki.ru/.
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