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Steel and Composite Structures
  Volume 41, Number 5, December10 2021 , pages 649-661
DOI: https://doi.org/10.12989/scs.2021.41.5.649
 


Cyclic behavior of FRP - crumb rubber concrete - steel double skin tubular columns and beams
Danda Li, Reza Hassanli, Yue Su, Yan Zhuge and Xing Ma

 
Abstract
    This paper presents experimental and analytical studies to understand the behavior of crumb rubber concrete (CRC)-filled fiber reinforced polymer (FRP) and steel tube double skin column (DSC) and beam (DSB) members under cyclic loading. The main test variable was the percentage of rubber which ranged from 0 to 40%. For column members, different heights corresponding to different aspect ratios were examined to understand the to understand the effect of DSCs' slenderness on the cyclic response of the columns. the. The behavior of the specimens in terms of failure mode, strain development, energy dissipation, load-displacement response were presented and compared. The ability of the current provisions of the Australian codes to predict the capacity of such double skin members was also evaluated based on the test results. This study concluded that the reduction in the concrete strength was more severe at the material level compared to structural level. Also, as the load changed from axial compression in columns to pure moment in beams the negative effect of rubber percentage on the strength became less significant.
 
Key Words
    crumb rubber concrete; cyclic compressive loading; double skin columns; flexural behavior; fibre reinforced polymer (FRP); Steel tube
 
Address
Danda Li, Reza Hassanli, Yue Su, Yan Zhuge and Xing Ma:University of South Australia, UniSA STEM, Mawson Lakes, SA 5095, Australia
 

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