Finite Element Modelling of Structural Behavior of Doubly Restrained Concrete Compressive Members

Abstract

Fiber Reinforced Polymers (FRPs) have gained significant attention as a viable alternative to conventional structural steel in reinforced concrete structures due to their remarkable attributes including lightweight construction, exceptional tensile strength, and resistance to corrosion. Additionally, FRPs are resistant to electromagnetic interference and exhibit commendable durability. There is a scarcity of Finite Element Modelling (FEM) predictions regarding doubly restrained concrete compressive members in the existing corpus of literature. The main aim of this study is to predict the structural response of compressive members that are restrained by Steel Tube (ST) FRP under axial concentric loading. The current investigation entailed the utilization of ABAQUS software to implement a finite element analysis (FEA) model for STC compressive members. Additional refinements were made to the model to account for variations in the geometric and material properties of ST, concrete, and FRP. This outcome was attained through the application of empirical data collected from relevant scholarly sources. The results obtained from the FEA model exhibited a notable degree of concurrence with prior empirical observations.