Experimental Investigation of the Axial Load Capacity for DSTCs Manufactured with High Strength Concrete

Zakir Ikhlasi, Thomas Vincent

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Fiber-reinforced polymer (FRP)-concrete-steel double skin tubular columns (DSTCs) also known as hybrid DSTCs are a composite column made of an outer FRP tube, an inner steel tube and concrete filled in between. Combining these three materials provides several advantages not found in the traditional columns due their unique properties, such as; high ductility, high strength to weight ratio and good corrosion resistance. In this study a total of 18 DSTCs were manufactured with high strength concrete and have been experimentally tested under axial compression. All specimens were cylindrical with a diameter of 152 mm and height of 305 mm. The test parameters examined by this research were FRP tube thickness and cross-sectional shape of the inner steel tube. The results show that an increase in the FRP tube thickness leads to an increase in the maximum load capacity of the DSTC where this effect is more noticeable as the diameter of the steel tube decreases. It was also observed that the effect of the cross-sectional shape of the inner steel tube on axial load capacity is dependent on the size of the steel tube.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Civil Engineering and Architecture Conference
Subtitle of host publicationCEAC 2022, 11-14 March 2022, Singapore
EditorsMarco Casini
Place of PublicationSingapore
PublisherSpringer Nature
Pages334-341
Number of pages8
ISBN (Electronic)978-981-19-4293-8
ISBN (Print)978-981-19-4292-1
DOIs
Publication statusPublished - 2023
Event2nd International Civil Engineering and Architecture Conference, CEAC 2022 - Virtual, Online
Duration: 11 Mar 202214 Mar 2022

Publication series

NameLecture Notes in Civil Engineering
Volume279
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference2nd International Civil Engineering and Architecture Conference, CEAC 2022
CityVirtual, Online
Period11/03/2214/03/22

Keywords

  • Axial loading
  • CFRP
  • Composite columns
  • Double skin tubular columns
  • Fiber reinforced polymer
  • High-strength concrete
  • Hybrid DSTCs
  • Steel

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