%0 Journal Article
%@ 20734352
%A Javed, M.F.
%A Rafiq, H.
%A Khan, M.A.
%A Aslam, F.
%A Musarat, M.A.
%A Vatin, N.I.
%D 2021
%F scholars:14171
%I MDPI
%J Crystals
%N 12
%R 10.3390/cryst11121434
%T Axial behavior of concrete-filled double-skin tubular stub columns incorporating PVC pipes
%U https://khub.utp.edu.my/scholars/14171/
%V 11
%X 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.
%Z cited By 2