Computers and Concrete

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Seismic response of concrete columns with nanofiber reinforced polymer layer

  • Motezaker, Mohsen (Department of Civil Engineering, School of Science and Engineering, Sharif University of Technology, International Campus) ;
  • Kolahchi, Reza (Department of Civil Engineering, Meymeh Branch, Islamic Azad University)
  • Received : 2017.05.26
  • Accepted : 2017.06.29
  • Published : 2017.09.25
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Abstract

Seismic response of the concrete column covered by nanofiber reinforced polymer (NFRP) layer is investigated. The concrete column is studied in this paper. The column is modeled using sinusoidal shear deformation beam theory (SSDT). Mori-Tanaka model is used for obtaining the effective material properties of the NFRP layer considering agglomeration effects. Using the nonlinear strain-displacement relations, stress-strain relations and Hamilton's principle, the motion equations are derived. Harmonic differential quadrature method (HDQM) along with Newmark method is utilized to obtain the dynamic response of the structure. The effects of different parameters such as NFRP layer, geometrical parameters of column, volume fraction and agglomeration of nanofibers and boundary conditions on the dynamic response of the structure are shown. The results indicated that applied NFRP layer decreases the maximum dynamic displacement of the structure. In addition, using nanofibersas reinforcement leads a reduction in the maximum dynamic displacement of the structure.

Keywords

References

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