Simplified method and system for steel-concrete bond-slip constitutive relationship

Abstract

The present invention discloses a simplified method and system for a steel-concrete bond-slip constitutive relationship, and relates to the technical field of engineering mechanics property analysis. The method includes the following steps: obtaining a steel-concrete bond stress-slip curve, and segmenting and simplifying the steel-concrete bond stress-slip curve according to an elastic rising segment, a softening descending segment, and a residual platform segment to obtain a simplified bond-slip curve; and determining key control points on the bond-slip curve and simplifying values of the key control points to obtain a simplified bond-slip constitutive model, where the key control points include at least an elastic start point, a bond strength point, a residual strength point, and a complete debonding point. According to the present invention, technical problems that a bond-slip constitutive relationship expression is complex and numerical simulation analysis efficiency is low are solved.

Images