Estimation of Shear Stiffness of Interlayer Connection in Two-Layer Composite Beams Based on Analysis of Natural Frequencies

  • Zbigniew Perkowski
  • Mariusz Czabak
  • Karolina Gozarska
Keywords: composite beam, compliant shear connection, natural frequency, laboratory tests

Abstract

The paper shows possibilities of testing composite two-layer beams with flexible connectors (like bolts in steel-concrete beams and nails in wooden-concrete ones) offered by analysis of their natural frequencies. It enables an estimation of shear compliance for the interlayer connection if Young’s moduli of layers are known thanks to finding the global minimum of function of errors between model and measured natural frequencies of beam. The considerations are illustrated by the results of our own laboratory-tests.

Author Biographies

Zbigniew Perkowski

Faculty of Civil Engineering, Chair of Physics of Materials, Opole University of Technology, Poland

Mariusz Czabak

Faculty of Civil Engineering, Chair of Physics of Materials, Opole University of Technology, Poland

Karolina Gozarska

Faculty of Civil Engineering, Chair of Physics of Materials, Opole University of Technology, Poland

Published
2013-11-30
How to Cite
Perkowski, Z., Czabak, M., & Gozarska, K. (2013). Estimation of Shear Stiffness of Interlayer Connection in Two-Layer Composite Beams Based on Analysis of Natural Frequencies. Communications - Scientific Letters of the University of Zilina, 15(4), 18-20. Retrieved from http://journals.uniza.sk/index.php/communications/article/view/703
Issue
Vol 15 No 4 (2013)
Section
Articles