Journal:Structures

Abstract:This paper presents a comprehensive study on the mechanical behavior and design methodology of seawater sea sand concrete-filled plastic-lined steel tubular (SSC-PLST) slender columns under eccentric compression. A series of experiments were conducted on eighteen specimens, including twelve SSC-PLST slender columns and six hollow steel tubes, and parameters such as slenderness ratio, load eccentricity, and concrete strength were varied to observe their influence on the failure modes and load-carrying capacities of the specimens. Finite element analysis (FEA) was conducted to develop a numerical model of the SSC-PLST slender columns. Furthermore, parametric studies were conducted to evaluate the impact of concrete strength, steel strength, slenderness ratio, and load eccentricity on the ultimate load-carrying capacity of the SSC-PLST columns. The applicability of existing design method for concrete-filled steel tubular structures in calculating the ultimate load-carrying capacity of SSC-PLST slender columns was also assessed.

Indexed by:Journal paper

Page Number:2025,76:108916

Translation or Not:no

Included Journals:SCI