Rubberised concrete-filled double-skin circular tubes under axial compression

M. Elchalakani, A. Hosseini

Research output: Chapter in Book/Conference paperConference paper

Abstract

This experimental investigation involves testing and analysis of compressive strength, tensile strength, hoop and axial strains, and compressive load-deflection curves. A total of 31 specimens were examined to ascertain the varying properties of single-skin, double-skin, confined, unconfined, standard and rubberised concrete. Recycled rubber particles ranging from two to seven millimetres in size were used to replace 15% and 30% of the fine and coarse concrete aggregate by weight. The rubber particles were treated with sodium hydroxide solution resulting in increased bonding strength to the concrete. Circular Hollow Section (CHS) configurations of differing internal and external dimensions were also analysed to further understand the mechanics of double-skin confinement. Given the exceptional ductility, energy dissipation and improve strength of RuCFDST, this investigation shows the potential viability of RuCFDST as structural columns particularly in areas that are prone to seismic activity.

Original languageEnglish
Title of host publicationTubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017
EditorsAmin Heidarpour, Xiao-Ling Zhao
Place of PublicationAustralia
PublisherCRC Press/Balkema
Pages77-82
Number of pages6
ISBN (Print)9780815381341
DOIs
Publication statusPublished - 1 Jan 2018
Event16th International Symposium on Tubular Structures, ISTS 2017 - Melbourne, Australia
Duration: 4 Dec 20176 Dec 2017

Conference

Conference16th International Symposium on Tubular Structures, ISTS 2017
CountryAustralia
CityMelbourne
Period4/12/176/12/17

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  • Cite this

    Elchalakani, M., & Hosseini, A. (2018). Rubberised concrete-filled double-skin circular tubes under axial compression. In A. Heidarpour, & X-L. Zhao (Eds.), Tubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017 (pp. 77-82). CRC Press/Balkema. https://doi.org/10.1201/9781351210843-9