Coupled systems mechanics

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Viscoelastic behavior of concrete structures subject to earthquake

  • Received : 2021.05.22
  • Accepted : 2021.06.04
  • Published : 2021.06.25
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Abstract

This paper investigates an alternative way to the Raleigh formula to catch con- tributions of damping effects. Nowadays, thanks to the power of new software and effi- cient computational methods, there exist possibility to implement new analysis of damping through multiscale approach. The corresponding homogenization of a representative elemen-tal volume of concrete is used to calculate the effective properties of the composite, since energy dissipation properties such as viscoelasticity are not taken into account. At the end of this work, these methodologies are incorporated into a column of a building subject to seismic action. More precisely, with concrete as a composite material (aggregate+cement), we can use homogenization methods to calculate its effective properties by using the classical approach of a representative elemental volume. This can help to take into account properties of energy dissipation, such as produced by viscoelasticity. Finally, for illustration, the pro- posed methodology is applied to structural analysis of a column under the most unfavorable conditions in a building subject to earthquake action.

Keywords

Acknowledgement

The research described in this paper was financially supported by the Chair de Mecanique UTC, Regional government HdF, Institut Universitaire de France (IUF), and CONACYT Mobility Scholarship Program of Mexico.

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