Dyrda V.I., Kobets A.S., Bulat Ie.A., Lapin V.A., Lysytsia N.M., Ahaltsov H.M., Sokol S.P. Vibroseismic protection of heavy mining machines, buildings and structures

Деталі
Батьківська категорія: Геотехнічна механіка, 2020
Категорія: Геотехнічна механіка, 2020, № 151

Geoteh. meh. 2020, 151, 103-111

DOI: https://doi.org/10.1051/e3sconf/201910900022

Vibroseismic protection of heavy mining machines, buildings and structures

1Dyrda V.I., 2Kobets A.S., 3Bulat Ie.A., 4Lapin V.A., 5Lysytsia N.M., 1Ahaltsov H.M., 2Sokol S.P.

1Institute of Geotechnical Mechanics named by N. Poljakov of NAS of Ukraine, 2Dnipro State Agrarian and Economic University, 3Pridneprovsk Scientific Center of NAS of Ukraine and Ministry of Education and Science of Ukraine, 4Kazakh Research and Design Institute of Construction and Architecture, 5Oles Honchar Dnipro National University

UDC 678.4:539.3

Language: English

Abstract.

Analysis of global practice of vibroseismic protection of buildings and structures shows that systems with elastomeric blocks are the most promising in terms of cost and efficiency. In case of seismic movements, these systems protect buildings and structures not only in vertical and horizontal planes, but also against torsion. It is considered that torsion in combination with adverse factors such as vertical component of seismic impact, in particular, are the main cause of catastrophic destruction during the earthquakes. In the article, the authors analyze main issues of protecting buildings and structures against vibroseismic effects with the help of system of elastomeric blocks, which are characterized by high vertical stiffness, low shear stiffness, high energy dissipation and ability to center vertical load; besides, they feature high reliability with no risk of sudden failure. Results of static and dynamic tests of parametric series of elastomeric blocks used for protection of residential buildings against vibrations are presented. Design of pile with anti-vibration rubber supports is described. Calculation of elastomeric blocks under static compression is presented. Components of the stress-strain state of the thin-layer elements were investigated, and rate of the thin rubber layer compression under the action of vertically applied force was calculated. In numerical calculation, weak compressibility of rubber was simulated by moment force of the finite element for weakly compressible materials, which assumes triple approximation of displacement fields, deformation components, and volume change function. The numerical solution was obtained by the finite element method for different radius-thickness ratios in case of geometrically nonlinear elastic and viscoelastic deformation. Geometric nonlinearity was described with the help of the nonlinear deformation tensor. In order to model viscoelastic properties of the rubber, the Boltzmann-Volterra hereditary theory was used with the Yu.N. Rabotnov relaxation core. Nonlinear boundary problems were solved by the modified Newton-Kantorovich method. Influence of geometric nonlinearity and viscoelastic properties of rubber on the rate of the rubber layer compression was investigated.

Keywords:

vibroseismic protection of buildings and structures, vibroinsulator, static and dynamic researches, calculation of vibroinsulators

References:

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About the authors:

Dyrda Vitalii Illarionovych, Doctor of Technical Sciences (D. Sc.), Professor, Head of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Science of Ukraine, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Kobets Anatolii Stepanovych,Doctor of Public Administration, Professor, Rector, Dnipro State Agrarian and Economic University, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Bulat Ievgeniia Anatoliivna, Doctor of Science of Law, Senior Researcher, Prydniprovsky Scientific Center of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine, Professor of Department of Civil, Labour and Commercial Law, Oles Honchar Dnipro National University, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Lapin Vladimir Alekseevich, Candidate of Technical Sciences (Ph.D.), Director of Center for Scientific Research in Building Industry, Corresponding Member of International Engineering Academy and National Engineering Academy of the Republic of Kazakhstan, Kazakh Research and Design Institute of Construction and Architecture, Almaty, Kazakhstan, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Lysytsia Natalia Mykolaiivna, Master of Science, Assistant of computer technologies department, faculty of applied mathematics, Oles Honchar Dnipro National University, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Ahaltsov Hennadii Mykolaiovych, Master of Science, Junior Researcher of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Science of Ukraine, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Sokol Serhii Petrovych, Candidate of Technical Sciences (Ph.D.), Associate Professor, Dean of the Faculty of Engineering and Technology, Dnipro State Agrarian and Economic University, Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.