DYNAMIC PROPERTIES OF REINFORCED CONCRETE COLUMNS UNDER COMPRESSION
https://doi.org/10.31675/1607-1859-2019-21-2-165-174
Abstract
Purpose: The aim of this paper is the experimental studies and numerical calculations of the dynamic parameters of reinforced concrete columns under the increasing compressive stress. Design/methodology/approach: A RSV-150 Remote Sensing Vibrometer is used to measure the natural frequency of columns. A detailed 3D finite element model of the reinforced concrete column under the compression is constructed in ANSYS finite element program. Research findings: The paper presents the experimental and numerical results of the dynamic parameters of compressed reinforced concrete columns. The dependences are suggested for the reinforced concrete columns between the compressive stress and eigenfrequency. The analysis of the obtained dependencies shows the increase in the eigenfrequency of reinforced concrete columns with the increasing compressive stress, in contrast to the results of numerical calculations demonstrating the frequency decrease. According to the results of the field and numerical studies, the dependences of the eigen-frequency of the reinforced concrete columns on the compressive stresses are obtained. Practical implications: The obtained results can be applied in the modal analysis of the technical condition of compressed elements of buildings. Originality/value: The modal analysis of dynamic parameters gives an idea of the technical condition of the engineering system with regard to the external effect and the system properties.
About the Authors
A. S. Plyaskin
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Andrei S. Plyaskin, PhD, A/Professor
2, Solyanaya Sq., 634003, Tomsk
A. V. Matveev
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Andrei V. Matveev, PhD, A/Professor
2, Solyanaya Sq., 634003, Tomsk
B. O. Koshko
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Bogdan O. Koshko, Research Assistant
2, Solyanaya Sq., 634003, Tomsk
N. V. Shabalin
Tomsk State University of Architecture and Building
Russian Federation
Russian Federation
Nikita V. Shabalin, Undergraduate Student
2, Solyanaya Sq., 634003, Tomsk
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Review
For citations:
Plyaskin A.S., Matveev A.V., Koshko B.O., Shabalin N.V. DYNAMIC PROPERTIES OF REINFORCED CONCRETE COLUMNS UNDER COMPRESSION. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2019;(2):165-174. (In Russ.) https://doi.org/10.31675/1607-1859-2019-21-2-165-174
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