Modeling of Seismic Impacts Based on an Elastic One-Mass System with a Non-Stationary Support
Abstract: The article considers a model of a single-mass cantilever structure with a non-stationary support. This model is used in the dynamic method of studying building structures for the effect of seismic loads. A unified approach to obtaining computational dependencies is proposed, which is based on the decomposition of the portable motion function into a Fourier series. As an example, studies of dynamic stresses in the structures of water towers of the Rozhnovsky system have been carried out. The movement of the support is modeled by three damped harmonic functions, and correspond to an earthquake force of 8 points. The study was carried out taking into account the change in the natural frequency of the tower depending on the level of its filling. The simulation results showed that structures with the considered parameters can be operated with a seismicity of 8 points with restrictions on the levels of filling or emptying. The proposed approach can also be used to study the dynamics of different types of structures under technological influences, for example, on floating platforms and ships.
Keywords: forced oscillations, single-mass system, cantilever rod, earthquake, Fourier series, water tower.
Pages: 47-54.
For citation: Tsarenko, S. N.; Sgibnyev, M. D. Modeling of Seismic Impacts Based on an Elastic One-Mass System with a Non-Stationary Support. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-3(155) Buildings and structures using new materials and technologies. – Р. 47-54. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-3(155)/st_08_zarenko_sgibnev.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2022-3 (155)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture