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本文用拟板法求出变刚度双层网架的差分算子。用于求解杆件截面尺寸变化的网架杆件内力,和网架为变高度并且杆件截面尺寸亦变化的网架杆件内力。
In this paper, we use the quasi-plate method to find the difference operator of the variable stiffness double-layer grid. It is used to solve the internal force of the grid bar member for changing the dimensional change of the rod member, and the internal force of the grid bar member with the grid height changing and the sectional size of the bar member also changing.