论文部分内容阅读
本文根据Ｏｎａｔ等关于考虑几何形状变化对于结构承载能力影响的概念［１０］，用钱令希教授关于计算壳体极限承载能力的方法［１］分析了杆体结构，圆板轴对称变形，圆柱壳受环状集中力及均布法向载荷，圆锥壳受顶部集中力及内外均布压力等共１２个例题。每种情况都讨论和比较了载荷作用方式（载荷沿正向及反向作用），壳体几何参数（长筒壳和短筒壳，尖锥壳和扁锥壳，较厚壳和较薄壳）对于几何形状变化效应的影响。其中简支圆板和圆锥壳的分析与我们的实验结果符合较好。
In this paper, according to Onat et al.’s concept of considering the influence of geometric changes on the bearing capacity of the structure [10], Professor Qian Lingxi’s method of calculating the ultimate bearing capacity of the shell [1] was used to analyze the structure of the rod, the axisymmetric deformation of the circular plate, and the cylindrical shell. Concentrated by the ring and uniform load, the conical shell by the top of the concentrated force and uniform pressure inside and outside a total of 12 examples. In each case, the load action mode (load acting in forward and reverse directions) is discussed and compared. Shell geometry (long and short barrels, tapered and flat cones, thicker shells and thinner shells) ) Effects on geometry change effects. The analysis of simply supported circular plates and conical shells is in good agreement with our experimental results.