Non-linear analysis of double skinned composite hollow columns using geopolymer concrete. (2021)

• Record Type: Journal Article
• Authors: Rajan, C. Sakthi; Gopinath, G.; Devaraju, A.; Anbarasan, B.
• Is Part Of: Materials today. Volume 39:Part 1(2021)
• Page Start: 662
• Page End: 668
• Publication Date: 2021
• Subjects: Hollow columns -- Stiffness -- Seismic -- Geoploymer concrete -- ANSYS; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.09.186
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: This paper investigates the behavior of Doubled skinned (DSCFT) composite hollow columns with steel tubes compressed under concentric axial loads. The DSCFT member is a new type of composite construction, which consists of two concentric steel tubes with geoploymer concrete sandwiched between them. Thus, DSCFT columns have a series of advantages, such as high strength, high bending stiffness, good seismic and fire performance, and also having favorable construction ability. The finite element analysis of the DSCFT circular column is conducted to validate the finite element model. The results obtained from the finite element investigation are compared with the strength values predicted using existing formulations in the analytical investigation. A good correlation was found between the values obtained.