Construction Sciences No. 3 (2022): Academia. Architecture and Construction

Comparative Dynamic Characteristics of Structural Materials

Vladimir Smirnov
117-124 DOI 10.22337/2077-9038-2022-3-117-131 Published 2022-09-27
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Comparative Dynamic Characteristics of Structural Materials

Authors

  • Vladimir Smirnov The Department of Building and Theoretical Mechanics and Scientific and Research Institute of Experimental Mechanics of the National Research Moscow State University of Civil Engineering; The Scientific-Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences

DOI:

https://doi.org/10.22337/2077-9038-2022-3-117-131

Keywords:

loss factor, modulus of elasticity, damping, span structure, dynamics, moving load

Abstract

The work is devoted to the study of the dynamic characteristics of structural materials used in the elements of span structures of bridges. The influence of the composition density, the presence and type of hollow fillers, as well as the presence of fiber on the indicators of the mechanical loss coefficient and the dynamic modulus of elasticity is investigated. Tests are carried out on standard samples by the method of experimental modal analysis, the results of which determine the frequencies and forms of natural oscillations, and the value of the loss coefficient corresponding to each of the natural forms. Using an analytical expression for the frequency of natural oscillations of a hinged beam, the values of the dynamic modulus of elasticity are determined.

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Published

2022-09-27

Issue

No. 3 (2022): Academia. Architecture and Construction

Section

Construction Sciences

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

How to Cite

Comparative Dynamic Characteristics of Structural Materials. (2022). SCIENTIFIC JOURNAL “ACADEMIA. ARCHITECTURE AND CONSTRUCTION, 3, 117-124. https://doi.org/10.22337/2077-9038-2022-3-117-131

Keywords

loss factor, modulus of elasticity, damping, span structure, dynamics, moving load

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