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Shock and Vibration
Volume 2014, Article ID 682647, 9 pages
http://dx.doi.org/10.1155/2014/682647
Research Article

Investigation of Seismic Behavior of Container Crane Structures by Shake Table Tests and Mathematical Modeling

1Department of Mechanical Engineering, Yildiz Technical University, 34349 Istanbul, Turkey
2Department of Earthquake Engineering, Kandilli Observatory and Earthquake Research Institute, Bogazici University, 34684 Istanbul, Turkey

Received 24 February 2014; Accepted 16 June 2014; Published 13 July 2014

Academic Editor: Peijun Xu

Copyright © 2014 C. Oktay Azeloglu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper is concerned with the verification of mathematical modeling of the container cranes under earthquake loadings with shake table test results. Comparison of the shake table tests with the theoretical studies has an important role in the estimation of the seismic behavior of the engineering structures. For this purpose, a new shake table and mathematical model were developed. Firstly, a new physical model is directly fixed on the shake table and the seismic response of the container crane model against the past earthquake ground motion was measured. Secondly, a four degrees-of-freedom mathematical model is developed to understand the dynamic behaviour of cranes under the seismic loadings. The results of the verification study indicate that the developed mathematical model reasonably represents the dynamic behaviour of the crane structure both in time and frequency domains. The mathematical model can be used in active-passive vibration control studies to decrease structural vibrations on container cranes.