Steel and Composite Structures

  • 제45권1호
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  • Pages.23-38
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  • 2022
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Test and analysis of concrete-filled double steel and double skin tubular columns having outer stainless steel tube

  • Tokgoz, Serkan (Department of Civil Engineering, Adana Alparslan Turkes Science and Technology University) ;
  • Karaahmetli, Sedat (Department of Civil Engineering, Adana Alparslan Turkes Science and Technology University) ;
  • Dundar, Cengiz (Department of Civil Engineering, Toros University)
  • 투고 : 2022.07.01
  • 심사 : 2022.10.06
  • 발행 : 2022.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents experimental and analytical studies of eccentrically loaded concrete-filled double steel (CFDST) and concrete-filled double skin tube (DCFST) columns having outer stainless steel tube. Eighteen CFDST and DCFST column specimens were manufactured and tested to examine the strength and load-deflection responses. In the study, the main parameters were concrete strength, load eccentricity, cross section and slenderness. The strengths, load-deflection diagrams and failure patterns of the columns were observed. In addition, the tested CFDST and DCFST columns were analyzed to attain the capacity and load versus lateral deflection responses. The obtained theoretical results were compared with the test results. A parametric study was also performed to research the effects of the ratio of eccentricity (e/Ho) slenderness ratio (L/r), Ho/to ratio, Hi/ti ratio and the concrete compressive strength on the behavior of columns. In this work, the obtained results indicated that the ductility and capacity of columns were affected by cross section, concrete strength, steel strength, loading eccentricity and slenderness.

키워드

과제정보

The authors are grateful to Adana Alparslan Turkes Science and Technology University Scientific Research Projects Directorate (Project No. 19103016) for support.

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