Research on Carrying Capacity of T-Shaped Stiffened Concrete-Filled Steel Tubular Columns Subjected to Eccentrically Compressive Load. (19th February 2021)

• Record Type: Journal Article
• Authors: Yang, Yuanlong; Han, Xinchen; Nan, Bo; Tang, Xin
• Other Names: Yam Michael Academic Editor.
• Is Part Of: Advances in civil engineering. Volume 2021(2021)
• Publication Date: 2021-02-19
• Subjects: Civil engineering -- Periodicals; Civil engineering; Periodicals; 624
• DOI: 10.1155/2021/8867185
• Languages: English
• ISSNs: 1687-8086

Abstract

Abstract : In this paper, in order to further study the mechanical behavior of T-shaped stiffened concrete-filled steel tubular (CFST) columns, numerical programs of eccentrically compressive T-shaped stiffened CFST columns were developed to calculate moment M - ϕ curvature curves of cross section and column. The calculated curves with the numerical programs agree well with the experimental results. A parametric analysis was carried out to calculate M - N correlation curves of cross section and column to investigate influence of concrete strength f ck, steel yielding strength f y, steel tube thickness t, slenderness ratio λ, and loading angle θ . On the basis of parametric analysis, simplified resistance models of T-shaped CFST section and column were proposed and verified by the numerical analysis results. The simplified resistance models are reliable to predict the mechanical behavior for engineering application.