Finite element analysis shows that the lateral stiffness of the concrete grill wa ll can be calculated by an equivalent solid shear wall with the thickness of two third of the original wall thickness.

有限元分析结果表明，保温砌模混凝土墙的抗侧刚度可用厚度为其三分之二的等效实体墙计算或用小开口整体墙计算。

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Addressing deformation characteristics of the shell during rotary piercing operation, wall thickness unevenness is calculated by means of the FE simulation method.

通过有限元模拟针对斜轧穿孔过程中毛管的变形特点，对其壁厚不均进行了计算。

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The wall thickness of thick wall copper tube drawn without plug is calculated by using Zhou-Zhou formula.

本文用双周数表计算了铜合金厚壁管空拔后的壁厚。

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