基于非线性的新老混凝土粘结问题的数值模拟及分析

Study of the Adherence between the New and Old Concrete Based on Nonlinear Analysis

采用ANSYS非线性模块,同时考虑工作过程中大变形、接触等多种非线性因素,对新老混凝土粘结试件和整体试件的复合受力进行数值模拟.从应力分析角度研究在复合应力下,新老混凝土粘结的应力分布规律,考察新混凝土强度、压应力对粘结强度的影响规律,探索新老混凝土粘结复合受力的强度特性.

New on old concrete adhesive specimen and whole specimen are done by nonlinear module in ANSYS in which large deformation and contact are simultaneously considered. The stress distribution law of adherence of new on old concrete under biaxial stresses is studied as viewed from stress analysis. The effects of strength of new concrete and compressive stress on adhesive strength are investigated. The adhesive strength behavior of new on old concrete under biaxial stresses is studied.