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Structural behavior of lightweight concrete filled steel tube column of different cross section under axial compression

  • Unique Paper ID: 166884
  • Volume: 11
  • Issue: 2
  • PageNo: 2428-2437
  • Abstract:
  • Highrise buildings constructed with the lightweight concrete filled steel tube (LWCFST) column has many advantages as compared to the steel column or the reinforced concrete column. The interaction between the steel tube and concrete is one of the primary benefits of concrete filled steel tube (CFT), as the confining effect of the steel tube increases the strength of the concrete and delays the local buckling of the steel tube due to the concrete's constraint. This study comprises the structural behavior of lightweight CFST column of different cross section under axial loading and research findings about stress strain relationship, and comparison of experimental load carrying capacity with analytical results using ANSYS software. In this study Concrete-filled double-skin stiffened steel tubular (CFDST) Columns considered as a new type of Concrete Filled Steel Tubular (CFST) Columns. It is made up of an outer and inner steel tube and an annulus filled with lightweight concrete between the skins. Compared to CFST, CFDST has numerous benefits, including greater damping properties, section modulus, stability, and weight reduction. Sintagg Lightweight aggregate was used to create high strength structural light weight concrete of M40 grade, which decreased the structural column's dead load by up to 29.94 percent when compared to normal concrete. The results and observation from the test reveals significant difference between CFDST and CFST, showcasing enhanced strength parameters. This study emphasizes the potential benefits of using double skin steel tube column in high rise buildings and it is an effective approach to enhance the strength parameters of columns.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 2
  • PageNo: 2428-2437

Structural behavior of lightweight concrete filled steel tube column of different cross section under axial compression

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