E3S Web Conf.
Volume 304, 20212nd International Conference on Energetics, Civil and Agricultural Engineering (ICECAE 2021)
|Number of page(s)
|21 September 2021
Dynamics of high-rise structures taking into account the viscoelastic properties of the material
1 Department of Theoretical and Structural Mechanics, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, 100000 Tashkent, Uzbekistan
2 Karshi Engineering-Economics Institute, 225, Mustakillik str., Karshi, Uzbekistan
3 Fergana Polytechnical Institute, Fergana, Uzbekistan
* Corresponding author: email@example.com
The article deals with forced vibrations of a high-rise axisymmetric structure, represented as a viscoelastic beam of an annular section with a variable slope of the generatrices and variable thickness. The research was conducted to analyze the behavior of a high-rise structure for various kinematic effects. The task is to determine the displacements of the points of a high-rise structure at different time points under different kinematic effects. The methods were developed and a computer program was built; forced vibrations of high-rise axisymmetric structures under various kinematic actions, considering viscoelastic properties of the material, were investigated in linear, nonlinear, and viscoelastic formulations. The study of the dynamic behavior of a high-rise structure, taking into account the nonlinear and dissipative properties (different in nature) of the material, shows that the combined consideration of all these properties brings the resulting pattern closer to the one observed in reality. That is, the amplitude of the structure’s oscillations does not grow infinitely, but gradually decreases over time, and the maximum possible consideration of nonlinear and dissipative properties leads to the fastest damping of oscillations.
© The Authors, published by EDP Sciences, 2021
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