厚薄板通用矩形单元分析

Analysis of rectangular element of thick or thin plates for raft

在研究高层建筑考虑桩土地基作用下筏板基础受力计算中 ,采用了厚薄板通用单元理论 ,继承了文献 [1 ]所述的广义协调元思想 ,并将其应用于板分析中 ,建立了厚薄板通用单元 ,克服了板极薄时出现的剪力闭锁现象 ,并给出了此单元刚度矩阵分析中有关的几何矩阵的具体表达式 .通过算例和计算结果 。

The rectangular element for both thick and thin plates was developed for raft analysis of tall building concerning pile and soil foundation based on the concept of generalized confirming element.High precision and practice can be obtained using this element with simple formulation for wide range of plate thickness and it is free of shear locking as the thickness of the plate approaches zero.Explicit geometry matrix and numerical examples were presented.