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在采用ANSYS进行砌体结构非线性有限元分析时,目前还缺乏可以借鉴的普遍性研究结论。本文研究了基于实验数据的砌体结构的三维有限元分析,提出了用于研究砌体结构在剪压复合应力状态下力和位移关系的有限元模型。模型通过大型通用有限元分析软件ANSYS建立,利用有限元和离散元相结合的技术,对小型砌体结构在剪压状态下的实验数据和模拟数据进行了对比。通过对力和位移曲线的分析,提出的模型能有精确的预测结构的破坏应力以及破坏时的形变。
In the use of ANSYS for nonlinear finite element analysis of masonry structures, there is still no universal research conclusion that can be used for reference. In this paper, three-dimensional finite element analysis of masonry structures based on experimental data is studied, and a finite element model for the study of the relationship between force and displacement of masonry structures under shear-compression combined stress conditions is proposed. The model is established by the large-scale general finite element analysis software ANSYS. The experimental data and simulation data of the small masonry structure under the shear state are compared by using the combination of finite element and discrete element. Through the analysis of the force and displacement curves, the proposed model can accurately predict the failure stress of the structure and the deformation during failure.