Finite Element Analysis On Interface Bond In SRC Column

Steel Reinforced Concrete (SRC) structure is a type of structure which reinforced concrete embraces steel. It is also a main kind of steel and concrete composite structure.The paper introduces the characteristics of SRC structure; summarizes the development and application of steel reinforced concrete structures in home and abroad; describes the basic problems and mechanism of bond-slip of SRC Structures; and gives a detailed introduction of the research status, achievement, and the problems existed as to the bond-slip construction.A nonlinear and separate type of finite element of mechanical model is built, and the method of handling the numerical simulation is summarized in this paper. The feasibility of using ANSYS software to analyze the limit bearing capacity of the bond-slip construction is also discussed.This thesis calculates the mechanical behavior of 12 SRC short columns on the background of axial force. The relation between load and displacement, the rule of bond stress and the slip is get. And the influence in the bond-slip properties by concrete compression strength, thickness of concrete protective cover, stirrup ratio, and anchorage length is also given.The analysis results show that:the bond-slip of SRC Structures should not be negligible, and adoption Combination39 can imitates the bond-slip constitutive relations of the SRC structure; the distributions of bond stress and slip along anchorage length are changed under different forces; the influence of the concrete compression strength, thickness of concrete protective cover, stirrup ratio, and anchorage length are different.