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对钢筋混凝土无冲切筋板受冲切承载力计算及冲切计算周长um 的取值进行了比较分析 ,针对同一荷载值不同荷载作用面的冲切承载力计算中出现的不足现象 ,提出一个um 的取值方法 ,以修正不同作用面形状造成的计算结果矛盾现象。
The calculation of blanking capacity and punching calculation of perimeter um of unreinforced reinforced concrete slab are comparatively analyzed. According to the deficiencies in the calculation of blanking capacity of different load acting surfaces with the same load value, A um value of the method to correct the shape of the different surfaces caused by the contradiction between the results of the calculation.