An Analytic study on the bond of the contact surface in CFT tubular column

중심축하중을 받는 CFT 합성기둥의 접촉면 부착에 관한 해석적 연구

In order for utilization of the concrete filled tubular, It Is necessary to scrutinize interfacial characteristics between heterogeneous materials, and be performed to various analytical studies on the composite structure. In this paper, this analytic study is carried on using ABAQUS Package/ Version 5.8-1, and the variables aye the relations between the coefficient of friction and the contact pressure for analyzing the behavior on the contact surface, through modifying the analytic methods and improving some problems. It is used to subdivided analytical methods in this research which categorize into four regions and can obtain closer effect for the bond behavior. Four categories compose of the chemical bond and mechanical bond legions replaced the full-interaction before yielding, and the pure friction and moving-down regions after yielding.