Axial behavior of concrete-filled double-skin tubular stub columns incorporating PVC pipes

Javed, M.F. and Rafiq, H. and Khan, M.A. and Aslam, F. and Musarat, M.A. and Vatin, N.I. (2021) Axial behavior of concrete-filled double-skin tubular stub columns incorporating PVC pipes. Crystals, 11 (12).

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Abstract

This experimental study presents concrete-filled double-skin tubular columns and demon-strates their expected advantages. These columns consist of an outer steel tube, an inner steel tube, and concrete sandwiched between two tubes. The influence of the outer-to-inner tube dimension ratio, outer tube to thickness ratio, and type of inner tube material (steel, PVC pipe) on the ultimate axial capacity of concrete-filled double-skin tubular columns is studied. It is found that the yield strength of the inner tube does not significantly affect the ultimate axial capacity of concrete-filled double-skin tubular composites. With the replacement of the inner tube of steel with a PVC pipe, on average, less than 10 strength is reduced, irrespective of size and dimensions of the steel tube. Hence, the cost of a project can be reduced by replacing inner steel tubes with a PVC pipes. Finally, the experimental results are compared with the existing design methods presented in AISC 360-16 (2016), GB51367 (2019), and EC4 (2004). It is found from the comparison that GB51367 (2019) gives better results, followed by AISC (2016) and EC4 (2004). © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Item Type: Article
Impact Factor: cited By 1
Departments / MOR / COE: Research Institutes > Institute for Sustainable Building
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 02:10
Last Modified: 29 Mar 2022 05:21
URI: http://scholars.utp.edu.my/id/eprint/29626

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