International Journal of Civil and Structural Engineering

Volume 4 Issue 3 2014          Pages: 262- 273           << Previous      Next>>

Structural behaviour of hybrid fibre reinforced concrete exterior Beam-Column joint subjected to cyclic loading

Author Information:

Muthuswamy K.R1, Thirugnanam G.S2
1- Head of Department / Civil Engineering, Sakthi Polytechnic College,
Erode, Tamilnadu, India
2- Professor and Head / Civil Engineering, Institute of Road and Transport Technology,
Erode, Tamilnadu, India

Beam-column joints in a multistory reinforced concrete framed structure take an important role in the structural integrity of the building. Pertaining to these areas, a high percentage of transverse hoops in the core of joints are much needed to meet the requirement of strength, stiffness and ductility. A provision of high percentage of transverse hoops is certainly cause congestion of steel which results in construction difficulties. The usage of fibre reinforced concrete in beam-column joints can be an alternative solution for minimizing the congestion of transverse reinforcement. Main objective of this study is to identify the potential of hybrid fibre reinforced concrete (HFRC) as a ductile material which can be used for the construction of beam-column joints. One fifth scale model of an exterior beam-column joint made of conventional concrete and fibre reinforced concrete has been selected as test specimen for this experimental study. The specimens were subjected to cyclic loading. Such various parameters that load carrying capacity, load-deflection behavior, ductility, energy absorption, stiffness and failure patterns of the joints have been studied. The experiment results of beam-column joint with fibre reinforced concrete are compared with the beam-column joints which are made of conventional concrete. From the test results, it is found that the beam-column joint with HFRC results to 50% increase in ductility and 80% increase in energy absorption capacity in comparison with conventional concrete. HFRC in beam-column joint may be used to resist the earthquake in any seismic prone area.

Keyword: Fibre Reinforced Concrete; Hybrid fibre; Beam-Column joint; Ductility; Energy absorption; Stiffness.

doi: 10.6088/ijcser.201304010026

Copyright: © 2014 by the author(s), licensee Integrated Publishing Association. This is an open-access article distributed under the terms of the Creative Commons Attribution License (3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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