Confinement of Reinforced-Concrete Columns with NonCode Compliant Confining Reinforcement plus Supplemental Pen-Binder

Authors

  • Anang Kristianto Department of Civil Engineering, Maranatha Christian University, Jalan Suria Sumantri 65, Bandung 40164, Indonesia
  • Iswandi Imran Department of Civil Engineering, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
  • Made Suarjana Department of Civil Engineering, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
  • Ivindra Pane Department of Civil Engineering, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia

DOI:

https://doi.org/10.5614/itbj.eng.sci.2012.44.3.2

Abstract

Abstract. One of the important requirements for earthquake resistant building related to confinement is the use of seismic hooks in the hoop or confining reinforcement of reinforced-concrete column elements. However, installation of a confining reinforcement with a 135-degree hook is not easy. Therefore, in practice, many construction workers apply a confining reinforcement with a 90-degree hook (non-code compliant). Based on research and records of recent earthquakes in Indonesia, the use of a non-code compliant confining reinforcement for concrete columns produces structures with poor seismic performance. This paper presents a study that introduces an additional element that is expected to improve the effectiveness of concrete columns confined with a non-code compliant confining reinforcement. The additional element, named a pen-binder, is used to keep the non-code compliant confining reinforcement in place. The effectiveness of this element under pure axial concentric loading was investigatedcomprehensively.The specimens tested in this study were 18 concrete columns,with a cross-section of 170 mm x 170 mm and a height of 480 mm. The main test variables were the material type of the pen-binder, the angle of the hook, and the confining reinforcement configuration.The test results indicate that adding pen -binders can effectively improve the strength and ductility of the column specimens confined with a non-code compliant confining reinforcement.

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References

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How to Cite

Kristianto, A., Imran, I., Suarjana, M., & Pane, I. (2013). Confinement of Reinforced-Concrete Columns with NonCode Compliant Confining Reinforcement plus Supplemental Pen-Binder. Journal of Engineering and Technological Sciences, 44(3), 220-237. https://doi.org/10.5614/itbj.eng.sci.2012.44.3.2

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