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通过对８块无结合筋双向叠合板的试验研究，本文采用组合周界错动机构，锥面母线为直线与曲线的连线，按塑性极限分析的方法推导了抗剪强度计算公式。该公式与试验结果符合性良好。
Through the experimental study of 8 unbonded tendons bi-directionally superimposed plates, this paper adopts the combined perimeter dislocation mechanism. The cone-faced bus is the line connecting the straight line and the curve, and the shear strength calculation formula is deduced according to the plastic limit analysis method. The formula is in good agreement with the test results.