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http://dx.doi.org/10.12989/sem.2019.69.5.547

Vibration analysis of concrete foundation armed by silica nanoparticles based on numerical methods  

Mahjoobi, Mahdi (Department of Civil Engineering, Islamic Azad University)
Bidgoli, Mahmood Rabani (Department of Civil Engineering, Islamic Azad University)
Publication Information
Structural Engineering and Mechanics / v.69, no.5, 2019 , pp. 547-555 More about this Journal
Abstract
In this study, vibration analysis of a concrete foundation-reinforced by $SiO_2$ nanoparticles resting on soil bed is investigated. The soil medium is simulated with spring constants. Furthermore, the Mori-Tanaka low is used for obtaining the material properties of nano-composite structure and considering agglomeration effects. Using third order shear deformation theory or Reddy theory, the total potential energy of system is calculated and by means of the Hamilton's principle, the coupled motion equations are obtained. Also, based an analytical method, the frequency of system is calculated. The effects of volume percent and agglomeration of $SiO_2$ nanoparticles, soil medium and geometrical parameters of structure are shown on the frequency of system. Results show that with increasing the volume percent of $SiO_2$ nanoparticles, the frequency of structure is increased.
Keywords
vibration of concrete foundation; agglomeration; $SiO_2$ nanoparticles; soil medium; analytical method;
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Times Cited By KSCI : 4  (Citation Analysis)
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