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该文在Tsai-Wu张量多项式和试验的基础上,构造出灌芯混凝土砌块砌体平面受力状态下三应力参数的破坏准则;并引入材料力学的应力转换公式,将破坏准则转换为以主应力和主应力与材料主轴夹角为参数的公式。同时,结合国内灌芯混凝土砌块砌体的试验结果,利用最小二乘法确定相关参数,最终形成可适用于工程实际应用的三次多项式破坏公式,并绘制出相应的三维和二维破坏曲面。计算结果表明,计算曲线与试验结果吻合较好,可用于中高层配筋砌块砌体剪力墙结构的设计和数值分析。
Based on the Tsai-Wu tensor polynomial and experiment, this paper constructs the failure criterion of the three stress parameters under the plane force condition of the filling core concrete block masonry. The stress transformation formula of material mechanics is introduced to convert the failure criterion into The main stress and principal stress and material angle between the spindle as a parameter formula. At the same time, combined with the test results of the domestic masonry concrete block masonry, the least square method is used to determine the relevant parameters, finally the cubic polynomial damage formula which can be applied to engineering practice is finally formed and the corresponding 3D and 2D destructive surfaces are drawn. The calculation results show that the calculated curve agrees well with the experimental results and can be used in the design and numerical analysis of middle and highrise reinforced block masonry shear wall structures.